[PATCH bpf-next v2 00/15] Introduce typed pointer support in BPF maps

[PATCH bpf-next v2 00/15] Introduce typed pointer support in BPF maps

[Kumar Kartikeya Dwivedi]

This set enables storing pointers of a certain type in BPF map, and extends the
verifier to enforce type safety and lifetime correctness properties.

The infrastructure being added is generic enough for allowing storing any kind
of pointers whose type is available using BTF (user or kernel) in the future
(e.g. strongly typed memory allocation in BPF program), which are internally
tracked in the verifier as PTR_TO_BTF_ID, but for now the series limits them to
four kinds of pointers obtained from the kernel.

Obviously, use of this feature depends on map BTF.

1. Unreferenced kernel pointer

In this case, there are very few restrictions. The pointer type being stored
must match the type declared in the map value. However, such a pointer when
loaded from the map can only be dereferenced, but not passed to any in-kernel
helpers or kernel functions available to the program. This is because while the
verifier's exception handling mechanism coverts BPF_LDX to PROBE_MEM loads,
which are then handled specially by the JIT implementation, the same liberty is
not available to accesses inside the kernel. The pointer by the time it is
passed into a helper has no lifetime related guarantees about the object it is
pointing to, and may well be referencing invalid memory.

2. Referenced kernel pointer

This case imposes a lot of restrictions on the programmer, to ensure safety. To
transfer the ownership of a reference in the BPF program to the map, the user
must use the bpf_kptr_xchg helper, which returns the old pointer contained in
the map, as an acquired reference, and releases verifier state for the
referenced pointer being exchanged, as it moves into the map.

This a normal PTR_TO_BTF_ID that can be used with in-kernel helpers and kernel
functions callable by the program.

However, if BPF_LDX is used to load a referenced pointer from the map, it is
still not permitted to pass it to in-kernel helpers or kernel functions. To
obtain a reference usable with helpers, the user must invoke a kfunc helper
which returns a usable reference (which also must be eventually released before
BPF_EXIT, or moved into a map).

Since the load of the pointer (preserving data dependency ordering) must happen
inside the RCU read section, the kfunc helper will take a pointer to the map
value, which must point to the actual pointer of the object whose reference is
to be raised. The type will be verified from the BTF information of the kfunc,
as the prototype must be:

	T *func(T **, ... /* other arguments */);

Then, the verifier checks whether pointer at offset of the map value points to
the type T, and permits the call.

This convention is followed so that such helpers may also be called from
sleepable BPF programs, where RCU read lock is not necessarily held in the BPF
program context, hence necessiating the need to pass in a pointer to the actual
pointer to perform the load inside the RCU read section.

3. per-CPU kernel pointer

These have very little restrictions. The user can store a PTR_TO_PERCPU_BTF_ID
into the map, and when loading from the map, they must NULL check it before use,
because while a non-zero value stored into the map should always be valid, it can
still be reset to zero on updates. After checking it to be non-NULL, it can be
passed to bpf_per_cpu_ptr and bpf_this_cpu_ptr helpers to obtain a PTR_TO_BTF_ID
to underlying per-CPU object.

It is also permitted to write 0 and reset the value.

4. Userspace pointer

The verifier recently gained support for annotating BTF with __user type tag.
This indicates pointers pointing to memory which must be read using the
bpf_probe_read_user helper to ensure correct results. The set also permits
storing them into the BPF map, and ensures user pointer cannot be stored into
other kinds of pointers mentioned above.

When loaded from the map, the only thing that can be done is to pass this
pointer to bpf_probe_read_user. No dereference is allowed.

Notes
-----

 * C selftests require https://reviews.llvm.org/D119799 to pass.
 * Unlike BPF timers, kptr is not reset or freed on map_release_uref.
 * Referenced kptr storage is always treated as unsigned long * on kernel side,
   as BPF side cannot mutate it. The storage (8 bytes) is sufficient for both
   32-bit and 64-bit platforms.
 * Use of WRITE_ONCE to reset unreferenced kptr on 32-bit systems is fine, as
   the actual pointer is always word sized, so the store tearing into two 32-bit
   stores won't be a problem as the other half is always zeroed out.

Changelog:
----------
v1 -> v2
v1: https://lore.kernel.org/bpf/20220220134813.3411982-1-memxor@gmail.com

 * Address comments from Alexei
   * Rename bpf_btf_find_by_name_kind_all to bpf_find_btf_id
   * Reduce indentation level in that function
   * Always take reference regardless of module or vmlinux BTF
   * Also made it the same for btf_get_module_btf
   * Use kptr, kptr_ref, kptr_percpu, kptr_user type tags
   * Don't reserve tag namespace
   * Refactor btf_find_field to be side effect free, allocate and populate
     kptr_off_tab in caller
   * Move module reference to dtor patch
   * Remove support for BPF_XCHG, BPF_CMPXCHG insn
   * Introduce bpf_kptr_xchg helper
   * Embed offset array in struct bpf_map, populate and sort it once
   * Adjust copy_map_value to memcpy directly using this offset array
   * Removed size member from offset array to save space
 * Fix some problems pointed out by kernel test robot
 * Tidy selftests
 * Lots of other minor fixes

Kumar Kartikeya Dwivedi (15):
  bpf: Factor out fd returning from bpf_btf_find_by_name_kind
  bpf: Make btf_find_field more generic
  bpf: Allow storing unreferenced kptr in map
  bpf: Allow storing referenced kptr in map
  bpf: Allow storing percpu kptr in map
  bpf: Allow storing user kptr in map
  bpf: Prevent escaping of kptr loaded from maps
  bpf: Adapt copy_map_value for multiple offset case
  bpf: Always raise reference in btf_get_module_btf
  bpf: Populate pairs of btf_id and destructor kfunc in btf
  bpf: Wire up freeing of referenced kptr
  bpf: Teach verifier about kptr_get kfunc helpers
  libbpf: Add kptr type tag macros to bpf_helpers.h
  selftests/bpf: Add C tests for kptr
  selftests/bpf: Add verifier tests for kptr

 include/linux/bpf.h                           | 109 ++-
 include/linux/btf.h                           |  23 +
 include/uapi/linux/bpf.h                      |  12 +
 kernel/bpf/arraymap.c                         |  14 +-
 kernel/bpf/btf.c                              | 623 ++++++++++++--
 kernel/bpf/hashtab.c                          |  28 +-
 kernel/bpf/helpers.c                          |  21 +
 kernel/bpf/map_in_map.c                       |   5 +-
 kernel/bpf/syscall.c                          | 204 ++++-
 kernel/bpf/verifier.c                         | 412 ++++++++--
 net/bpf/test_run.c                            |  39 +-
 tools/include/uapi/linux/bpf.h                |  12 +
 tools/lib/bpf/bpf_helpers.h                   |   4 +
 .../selftests/bpf/prog_tests/map_kptr.c       |  20 +
 tools/testing/selftests/bpf/progs/map_kptr.c  | 236 ++++++
 tools/testing/selftests/bpf/test_verifier.c   |  60 +-
 .../testing/selftests/bpf/verifier/map_kptr.c | 763 ++++++++++++++++++
 17 files changed, 2394 insertions(+), 191 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/map_kptr.c
 create mode 100644 tools/testing/selftests/bpf/progs/map_kptr.c
 create mode 100644 tools/testing/selftests/bpf/verifier/map_kptr.c

-- 
2.35.1

[PATCH bpf-next v2 01/15] bpf: Factor out fd returning from bpf_btf_find_by_name_kind

[Kumar Kartikeya Dwivedi]

In next few patches, we need a helper that searches all kernel BTFs
(vmlinux and module BTFs), and finds the type denoted by 'name' and
'kind'. Turns out bpf_btf_find_by_name_kind already does the same thing,
but it instead returns a BTF ID and optionally fd (if module BTF). This
is used for relocating ksyms in BPF loader code (bpftool gen skel -L).

We extract the core code out into a new helper bpf_find_btf_id, which
returns the BTF ID in the return value, and BTF pointer in an out
parameter. The reference for the returned BTF pointer is always raised,
hence user must either transfer it (e.g. to a fd), or release it after
use.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/btf.c | 90 ++++++++++++++++++++++++++++--------------------
 1 file changed, 53 insertions(+), 37 deletions(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 8b34563a832e..17b9adcd88d3 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -525,6 +525,48 @@ s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind)
 	return -ENOENT;
 }
 
+static s32 bpf_find_btf_id(const char *name, u32 kind, struct btf **btf_p)
+{
+	struct btf *btf;
+	s32 ret;
+	int id;
+
+	btf = bpf_get_btf_vmlinux();
+	if (IS_ERR(btf))
+		return PTR_ERR(btf);
+
+	ret = btf_find_by_name_kind(btf, name, kind);
+	/* ret is never zero, since btf_find_by_name_kind returns
+	 * positive btf_id or negative error.
+	 */
+	if (ret > 0) {
+		btf_get(btf);
+		*btf_p = btf;
+		return ret;
+	}
+
+	/* If name is not found in vmlinux's BTF then search in module's BTFs */
+	spin_lock_bh(&btf_idr_lock);
+	idr_for_each_entry(&btf_idr, btf, id) {
+		if (!btf_is_module(btf))
+			continue;
+		/* linear search could be slow hence unlock/lock
+		 * the IDR to avoiding holding it for too long
+		 */
+		btf_get(btf);
+		spin_unlock_bh(&btf_idr_lock);
+		ret = btf_find_by_name_kind(btf, name, kind);
+		if (ret > 0) {
+			*btf_p = btf;
+			return ret;
+		}
+		spin_lock_bh(&btf_idr_lock);
+		btf_put(btf);
+	}
+	spin_unlock_bh(&btf_idr_lock);
+	return ret;
+}
+
 const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
 					       u32 id, u32 *res_id)
 {
@@ -6562,7 +6604,8 @@ static struct btf *btf_get_module_btf(const struct module *module)
 
 BPF_CALL_4(bpf_btf_find_by_name_kind, char *, name, int, name_sz, u32, kind, int, flags)
 {
-	struct btf *btf;
+	struct btf *btf = NULL;
+	int btf_obj_fd = 0;
 	long ret;
 
 	if (flags)
@@ -6571,44 +6614,17 @@ BPF_CALL_4(bpf_btf_find_by_name_kind, char *, name, int, name_sz, u32, kind, int
 	if (name_sz <= 1 || name[name_sz - 1])
 		return -EINVAL;
 
-	btf = bpf_get_btf_vmlinux();
-	if (IS_ERR(btf))
-		return PTR_ERR(btf);
-
-	ret = btf_find_by_name_kind(btf, name, kind);
-	/* ret is never zero, since btf_find_by_name_kind returns
-	 * positive btf_id or negative error.
-	 */
-	if (ret < 0) {
-		struct btf *mod_btf;
-		int id;
-
-		/* If name is not found in vmlinux's BTF then search in module's BTFs */
-		spin_lock_bh(&btf_idr_lock);
-		idr_for_each_entry(&btf_idr, mod_btf, id) {
-			if (!btf_is_module(mod_btf))
-				continue;
-			/* linear search could be slow hence unlock/lock
-			 * the IDR to avoiding holding it for too long
-			 */
-			btf_get(mod_btf);
-			spin_unlock_bh(&btf_idr_lock);
-			ret = btf_find_by_name_kind(mod_btf, name, kind);
-			if (ret > 0) {
-				int btf_obj_fd;
-
-				btf_obj_fd = __btf_new_fd(mod_btf);
-				if (btf_obj_fd < 0) {
-					btf_put(mod_btf);
-					return btf_obj_fd;
-				}
-				return ret | (((u64)btf_obj_fd) << 32);
-			}
-			spin_lock_bh(&btf_idr_lock);
-			btf_put(mod_btf);
+	ret = bpf_find_btf_id(name, kind, &btf);
+	if (ret > 0 && btf_is_module(btf)) {
+		btf_obj_fd = __btf_new_fd(btf);
+		if (btf_obj_fd < 0) {
+			btf_put(btf);
+			return btf_obj_fd;
 		}
-		spin_unlock_bh(&btf_idr_lock);
+		return ret | (((u64)btf_obj_fd) << 32);
 	}
+	if (ret > 0)
+		btf_put(btf);
 	return ret;
 }
 
-- 
2.35.1

[PATCH bpf-next v2 02/15] bpf: Make btf_find_field more generic

[Kumar Kartikeya Dwivedi]

Next commit's field type will not be struct, but pointer, and it will
not be limited to one offset, but multiple ones. Make existing
btf_find_struct_field and btf_find_datasec_var functions amenable to use
for finding BTF ID pointers in map value, by taking a moving spin_lock
and timer specific checks into their own function.

The alignment, and name are checked before the function is called, so it
is the last point where we can skip field or return an error before the
next loop iteration happens. This is important, because we'll be
potentially reallocating memory inside this function in next commit, so
being able to do that when everything else is in order is going to be
more convenient.

The name parameter is now optional, and only checked if it is not NULL.

The size must be checked in the function, because in case of PTR it will
instead point to the underlying BTF ID it is pointing to (or modifiers),
so the check becomes wrong to do outside of function, and the base type
has to be obtained by removing modifiers.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/btf.c | 120 +++++++++++++++++++++++++++++++++--------------
 1 file changed, 86 insertions(+), 34 deletions(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 17b9adcd88d3..5b2824332880 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3161,71 +3161,109 @@ static void btf_struct_log(struct btf_verifier_env *env,
 	btf_verifier_log(env, "size=%u vlen=%u", t->size, btf_type_vlen(t));
 }
 
+enum {
+	BTF_FIELD_SPIN_LOCK,
+	BTF_FIELD_TIMER,
+};
+
+struct btf_field_info {
+	u32 off;
+};
+
+static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
+				 u32 off, int sz, struct btf_field_info *info)
+{
+	if (!__btf_type_is_struct(t))
+		return 0;
+	if (t->size != sz)
+		return 0;
+	if (info->off != -ENOENT)
+		/* only one such field is allowed */
+		return -E2BIG;
+	info->off = off;
+	return 0;
+}
+
 static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
-				 const char *name, int sz, int align)
+				 const char *name, int sz, int align, int field_type,
+				 struct btf_field_info *info)
 {
 	const struct btf_member *member;
-	u32 i, off = -ENOENT;
+	u32 i, off;
+	int ret;
 
 	for_each_member(i, t, member) {
 		const struct btf_type *member_type = btf_type_by_id(btf,
 								    member->type);
-		if (!__btf_type_is_struct(member_type))
-			continue;
-		if (member_type->size != sz)
-			continue;
-		if (strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
-			continue;
-		if (off != -ENOENT)
-			/* only one such field is allowed */
-			return -E2BIG;
+
 		off = __btf_member_bit_offset(t, member);
+
+		if (name && strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
+			continue;
 		if (off % 8)
 			/* valid C code cannot generate such BTF */
 			return -EINVAL;
 		off /= 8;
 		if (off % align)
 			return -EINVAL;
+
+		switch (field_type) {
+		case BTF_FIELD_SPIN_LOCK:
+		case BTF_FIELD_TIMER:
+			ret = btf_find_field_struct(btf, member_type, off, sz, info);
+			if (ret < 0)
+				return ret;
+			break;
+		default:
+			return -EFAULT;
+		}
 	}
-	return off;
+	return 0;
 }
 
 static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
-				const char *name, int sz, int align)
+				const char *name, int sz, int align, int field_type,
+				struct btf_field_info *info)
 {
 	const struct btf_var_secinfo *vsi;
-	u32 i, off = -ENOENT;
+	u32 i, off;
+	int ret;
 
 	for_each_vsi(i, t, vsi) {
 		const struct btf_type *var = btf_type_by_id(btf, vsi->type);
 		const struct btf_type *var_type = btf_type_by_id(btf, var->type);
 
-		if (!__btf_type_is_struct(var_type))
-			continue;
-		if (var_type->size != sz)
+		off = vsi->offset;
+
+		if (name && strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
 			continue;
 		if (vsi->size != sz)
 			continue;
-		if (strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
-			continue;
-		if (off != -ENOENT)
-			/* only one such field is allowed */
-			return -E2BIG;
-		off = vsi->offset;
 		if (off % align)
 			return -EINVAL;
+
+		switch (field_type) {
+		case BTF_FIELD_SPIN_LOCK:
+		case BTF_FIELD_TIMER:
+			ret = btf_find_field_struct(btf, var_type, off, sz, info);
+			if (ret < 0)
+				return ret;
+			break;
+		default:
+			return -EFAULT;
+		}
 	}
-	return off;
+	return 0;
 }
 
 static int btf_find_field(const struct btf *btf, const struct btf_type *t,
-			  const char *name, int sz, int align)
+			  const char *name, int sz, int align, int field_type,
+			  struct btf_field_info *info)
 {
-
 	if (__btf_type_is_struct(t))
-		return btf_find_struct_field(btf, t, name, sz, align);
+		return btf_find_struct_field(btf, t, name, sz, align, field_type, info);
 	else if (btf_type_is_datasec(t))
-		return btf_find_datasec_var(btf, t, name, sz, align);
+		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info);
 	return -EINVAL;
 }
 
@@ -3235,16 +3273,30 @@ static int btf_find_field(const struct btf *btf, const struct btf_type *t,
  */
 int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t)
 {
-	return btf_find_field(btf, t, "bpf_spin_lock",
-			      sizeof(struct bpf_spin_lock),
-			      __alignof__(struct bpf_spin_lock));
+	struct btf_field_info info = { .off = -ENOENT };
+	int ret;
+
+	ret = btf_find_field(btf, t, "bpf_spin_lock",
+			     sizeof(struct bpf_spin_lock),
+			     __alignof__(struct bpf_spin_lock),
+			     BTF_FIELD_SPIN_LOCK, &info);
+	if (ret < 0)
+		return ret;
+	return info.off;
 }
 
 int btf_find_timer(const struct btf *btf, const struct btf_type *t)
 {
-	return btf_find_field(btf, t, "bpf_timer",
-			      sizeof(struct bpf_timer),
-			      __alignof__(struct bpf_timer));
+	struct btf_field_info info = { .off = -ENOENT };
+	int ret;
+
+	ret = btf_find_field(btf, t, "bpf_timer",
+			     sizeof(struct bpf_timer),
+			     __alignof__(struct bpf_timer),
+			     BTF_FIELD_TIMER, &info);
+	if (ret < 0)
+		return ret;
+	return info.off;
 }
 
 static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
-- 
2.35.1

Re: [PATCH bpf-next v2 02/15] bpf: Make btf_find_field more generic

[Alexei Starovoitov]

On Thu, Mar 17, 2022 at 05:29:44PM +0530, Kumar Kartikeya Dwivedi wrote:
> Next commit's field type will not be struct, but pointer, and it will
> not be limited to one offset, but multiple ones. Make existing
> btf_find_struct_field and btf_find_datasec_var functions amenable to use
> for finding BTF ID pointers in map value, by taking a moving spin_lock
> and timer specific checks into their own function.
> 
> The alignment, and name are checked before the function is called, so it
> is the last point where we can skip field or return an error before the
> next loop iteration happens. This is important, because we'll be
> potentially reallocating memory inside this function in next commit, so
> being able to do that when everything else is in order is going to be
> more convenient.
> 
> The name parameter is now optional, and only checked if it is not NULL.
> 
> The size must be checked in the function, because in case of PTR it will
> instead point to the underlying BTF ID it is pointing to (or modifiers),
> so the check becomes wrong to do outside of function, and the base type
> has to be obtained by removing modifiers.
> 
> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> ---
>  kernel/bpf/btf.c | 120 +++++++++++++++++++++++++++++++++--------------
>  1 file changed, 86 insertions(+), 34 deletions(-)
> 
> diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> index 17b9adcd88d3..5b2824332880 100644
> --- a/kernel/bpf/btf.c
> +++ b/kernel/bpf/btf.c
> @@ -3161,71 +3161,109 @@ static void btf_struct_log(struct btf_verifier_env *env,
>  	btf_verifier_log(env, "size=%u vlen=%u", t->size, btf_type_vlen(t));
>  }
>  
> +enum {
> +	BTF_FIELD_SPIN_LOCK,
> +	BTF_FIELD_TIMER,
> +};
> +
> +struct btf_field_info {
> +	u32 off;
> +};
> +
> +static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> +				 u32 off, int sz, struct btf_field_info *info)
> +{
> +	if (!__btf_type_is_struct(t))
> +		return 0;
> +	if (t->size != sz)
> +		return 0;
> +	if (info->off != -ENOENT)
> +		/* only one such field is allowed */
> +		return -E2BIG;
> +	info->off = off;
> +	return 0;
> +}
> +
>  static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
> -				 const char *name, int sz, int align)
> +				 const char *name, int sz, int align, int field_type,
> +				 struct btf_field_info *info)
>  {
>  	const struct btf_member *member;
> -	u32 i, off = -ENOENT;
> +	u32 i, off;
> +	int ret;
>  
>  	for_each_member(i, t, member) {
>  		const struct btf_type *member_type = btf_type_by_id(btf,
>  								    member->type);
> -		if (!__btf_type_is_struct(member_type))
> -			continue;
> -		if (member_type->size != sz)
> -			continue;
> -		if (strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
> -			continue;
> -		if (off != -ENOENT)
> -			/* only one such field is allowed */
> -			return -E2BIG;
> +
>  		off = __btf_member_bit_offset(t, member);
> +
> +		if (name && strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
> +			continue;
>  		if (off % 8)
>  			/* valid C code cannot generate such BTF */
>  			return -EINVAL;
>  		off /= 8;
>  		if (off % align)
>  			return -EINVAL;
> +
> +		switch (field_type) {
> +		case BTF_FIELD_SPIN_LOCK:
> +		case BTF_FIELD_TIMER:

Since spin_lock vs timer is passed into btf_find_struct_field() as field_type
argument there is no need to pass name, sz, align from the caller.
Pls make btf_find_spin_lock() to pass BTF_FIELD_SPIN_LOCK only
and in the above code do something like:
 switch (field_type) {
 case BTF_FIELD_SPIN_LOCK:
     name = "bpf_spin_lock";
     sz = ...
     break;
 case BTF_FIELD_TIMER:
     name = "bpf_timer";
     sz = ...
     break;
 }
 switch (field_type) {
 case BTF_FIELD_SPIN_LOCK:
 case BTF_FIELD_TIMER:
	if (!__btf_type_is_struct(member_type))
		continue;
	if (strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
        ...
        btf_find_field_struct(btf, member_type, off, sz, info);
 }

It will cleanup the later patch which passes NULL, sizeof(u64), alignof(u64)
only to pass something into the function.
With above suggestion it wouldn't need to pass dummy args. BTF_FIELD_KPTR will be enough.

> +			ret = btf_find_field_struct(btf, member_type, off, sz, info);
> +			if (ret < 0)
> +				return ret;
> +			break;
> +		default:
> +			return -EFAULT;
> +		}
>  	}
> -	return off;
> +	return 0;
>  }
>  
>  static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
> -				const char *name, int sz, int align)
> +				const char *name, int sz, int align, int field_type,
> +				struct btf_field_info *info)
>  {
>  	const struct btf_var_secinfo *vsi;
> -	u32 i, off = -ENOENT;
> +	u32 i, off;
> +	int ret;
>  
>  	for_each_vsi(i, t, vsi) {
>  		const struct btf_type *var = btf_type_by_id(btf, vsi->type);
>  		const struct btf_type *var_type = btf_type_by_id(btf, var->type);
>  
> -		if (!__btf_type_is_struct(var_type))
> -			continue;
> -		if (var_type->size != sz)
> +		off = vsi->offset;
> +
> +		if (name && strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
>  			continue;
>  		if (vsi->size != sz)
>  			continue;
> -		if (strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
> -			continue;
> -		if (off != -ENOENT)
> -			/* only one such field is allowed */
> -			return -E2BIG;
> -		off = vsi->offset;
>  		if (off % align)
>  			return -EINVAL;
> +
> +		switch (field_type) {
> +		case BTF_FIELD_SPIN_LOCK:
> +		case BTF_FIELD_TIMER:
> +			ret = btf_find_field_struct(btf, var_type, off, sz, info);
> +			if (ret < 0)
> +				return ret;
> +			break;
> +		default:
> +			return -EFAULT;
> +		}
>  	}
> -	return off;
> +	return 0;
>  }
>  
>  static int btf_find_field(const struct btf *btf, const struct btf_type *t,
> -			  const char *name, int sz, int align)
> +			  const char *name, int sz, int align, int field_type,
> +			  struct btf_field_info *info)
>  {
> -
>  	if (__btf_type_is_struct(t))
> -		return btf_find_struct_field(btf, t, name, sz, align);
> +		return btf_find_struct_field(btf, t, name, sz, align, field_type, info);
>  	else if (btf_type_is_datasec(t))
> -		return btf_find_datasec_var(btf, t, name, sz, align);
> +		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info);
>  	return -EINVAL;
>  }
>  
> @@ -3235,16 +3273,30 @@ static int btf_find_field(const struct btf *btf, const struct btf_type *t,
>   */
>  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t)
>  {
> -	return btf_find_field(btf, t, "bpf_spin_lock",
> -			      sizeof(struct bpf_spin_lock),
> -			      __alignof__(struct bpf_spin_lock));
> +	struct btf_field_info info = { .off = -ENOENT };
> +	int ret;
> +
> +	ret = btf_find_field(btf, t, "bpf_spin_lock",
> +			     sizeof(struct bpf_spin_lock),
> +			     __alignof__(struct bpf_spin_lock),
> +			     BTF_FIELD_SPIN_LOCK, &info);
> +	if (ret < 0)
> +		return ret;
> +	return info.off;
>  }
>  
>  int btf_find_timer(const struct btf *btf, const struct btf_type *t)
>  {
> -	return btf_find_field(btf, t, "bpf_timer",
> -			      sizeof(struct bpf_timer),
> -			      __alignof__(struct bpf_timer));
> +	struct btf_field_info info = { .off = -ENOENT };
> +	int ret;
> +
> +	ret = btf_find_field(btf, t, "bpf_timer",
> +			     sizeof(struct bpf_timer),
> +			     __alignof__(struct bpf_timer),
> +			     BTF_FIELD_TIMER, &info);
> +	if (ret < 0)
> +		return ret;
> +	return info.off;
>  }
>  
>  static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
> -- 
> 2.35.1
> 

-- 

Re: [PATCH bpf-next v2 02/15] bpf: Make btf_find_field more generic

[Kumar Kartikeya Dwivedi]

On Sat, Mar 19, 2022 at 11:25:34PM IST, Alexei Starovoitov wrote:
> On Thu, Mar 17, 2022 at 05:29:44PM +0530, Kumar Kartikeya Dwivedi wrote:
> > Next commit's field type will not be struct, but pointer, and it will
> > not be limited to one offset, but multiple ones. Make existing
> > btf_find_struct_field and btf_find_datasec_var functions amenable to use
> > for finding BTF ID pointers in map value, by taking a moving spin_lock
> > and timer specific checks into their own function.
> >
> > The alignment, and name are checked before the function is called, so it
> > is the last point where we can skip field or return an error before the
> > next loop iteration happens. This is important, because we'll be
> > potentially reallocating memory inside this function in next commit, so
> > being able to do that when everything else is in order is going to be
> > more convenient.
> >
> > The name parameter is now optional, and only checked if it is not NULL.
> >
> > The size must be checked in the function, because in case of PTR it will
> > instead point to the underlying BTF ID it is pointing to (or modifiers),
> > so the check becomes wrong to do outside of function, and the base type
> > has to be obtained by removing modifiers.
> >
> > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > ---
> >  kernel/bpf/btf.c | 120 +++++++++++++++++++++++++++++++++--------------
> >  1 file changed, 86 insertions(+), 34 deletions(-)
> >
> > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> > index 17b9adcd88d3..5b2824332880 100644
> > --- a/kernel/bpf/btf.c
> > +++ b/kernel/bpf/btf.c
> > @@ -3161,71 +3161,109 @@ static void btf_struct_log(struct btf_verifier_env *env,
> >  	btf_verifier_log(env, "size=%u vlen=%u", t->size, btf_type_vlen(t));
> >  }
> >
> > +enum {
> > +	BTF_FIELD_SPIN_LOCK,
> > +	BTF_FIELD_TIMER,
> > +};
> > +
> > +struct btf_field_info {
> > +	u32 off;
> > +};
> > +
> > +static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> > +				 u32 off, int sz, struct btf_field_info *info)
> > +{
> > +	if (!__btf_type_is_struct(t))
> > +		return 0;
> > +	if (t->size != sz)
> > +		return 0;
> > +	if (info->off != -ENOENT)
> > +		/* only one such field is allowed */
> > +		return -E2BIG;
> > +	info->off = off;
> > +	return 0;
> > +}
> > +
> >  static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
> > -				 const char *name, int sz, int align)
> > +				 const char *name, int sz, int align, int field_type,
> > +				 struct btf_field_info *info)
> >  {
> >  	const struct btf_member *member;
> > -	u32 i, off = -ENOENT;
> > +	u32 i, off;
> > +	int ret;
> >
> >  	for_each_member(i, t, member) {
> >  		const struct btf_type *member_type = btf_type_by_id(btf,
> >  								    member->type);
> > -		if (!__btf_type_is_struct(member_type))
> > -			continue;
> > -		if (member_type->size != sz)
> > -			continue;
> > -		if (strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
> > -			continue;
> > -		if (off != -ENOENT)
> > -			/* only one such field is allowed */
> > -			return -E2BIG;
> > +
> >  		off = __btf_member_bit_offset(t, member);
> > +
> > +		if (name && strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
> > +			continue;
> >  		if (off % 8)
> >  			/* valid C code cannot generate such BTF */
> >  			return -EINVAL;
> >  		off /= 8;
> >  		if (off % align)
> >  			return -EINVAL;
> > +
> > +		switch (field_type) {
> > +		case BTF_FIELD_SPIN_LOCK:
> > +		case BTF_FIELD_TIMER:
>
> Since spin_lock vs timer is passed into btf_find_struct_field() as field_type
> argument there is no need to pass name, sz, align from the caller.
> Pls make btf_find_spin_lock() to pass BTF_FIELD_SPIN_LOCK only
> and in the above code do something like:
>  switch (field_type) {
>  case BTF_FIELD_SPIN_LOCK:
>      name = "bpf_spin_lock";
>      sz = ...
>      break;
>  case BTF_FIELD_TIMER:
>      name = "bpf_timer";
>      sz = ...
>      break;
>  }

Would doing this in btf_find_field be better? Then we set these once instead of
doing it twice in btf_find_struct_field, and btf_find_datasec_var.

>  switch (field_type) {
>  case BTF_FIELD_SPIN_LOCK:
>  case BTF_FIELD_TIMER:
> 	if (!__btf_type_is_struct(member_type))
> 		continue;
> 	if (strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
>         ...
>         btf_find_field_struct(btf, member_type, off, sz, info);
>  }
>
> It will cleanup the later patch which passes NULL, sizeof(u64), alignof(u64)
> only to pass something into the function.
> With above suggestion it wouldn't need to pass dummy args. BTF_FIELD_KPTR will be enough.
>
> > +			ret = btf_find_field_struct(btf, member_type, off, sz, info);
> > +			if (ret < 0)
> > +				return ret;
> > +			break;
> > +		default:
> > +			return -EFAULT;
> > +		}
> >  	}
> > -	return off;
> > +	return 0;
> >  }
> >
> >  static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
> > -				const char *name, int sz, int align)
> > +				const char *name, int sz, int align, int field_type,
> > +				struct btf_field_info *info)
> >  {
> >  	const struct btf_var_secinfo *vsi;
> > -	u32 i, off = -ENOENT;
> > +	u32 i, off;
> > +	int ret;
> >
> >  	for_each_vsi(i, t, vsi) {
> >  		const struct btf_type *var = btf_type_by_id(btf, vsi->type);
> >  		const struct btf_type *var_type = btf_type_by_id(btf, var->type);
> >
> > -		if (!__btf_type_is_struct(var_type))
> > -			continue;
> > -		if (var_type->size != sz)
> > +		off = vsi->offset;
> > +
> > +		if (name && strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
> >  			continue;
> >  		if (vsi->size != sz)
> >  			continue;
> > -		if (strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
> > -			continue;
> > -		if (off != -ENOENT)
> > -			/* only one such field is allowed */
> > -			return -E2BIG;
> > -		off = vsi->offset;
> >  		if (off % align)
> >  			return -EINVAL;
> > +
> > +		switch (field_type) {
> > +		case BTF_FIELD_SPIN_LOCK:
> > +		case BTF_FIELD_TIMER:
> > +			ret = btf_find_field_struct(btf, var_type, off, sz, info);
> > +			if (ret < 0)
> > +				return ret;
> > +			break;
> > +		default:
> > +			return -EFAULT;
> > +		}
> >  	}
> > -	return off;
> > +	return 0;
> >  }
> >
> >  static int btf_find_field(const struct btf *btf, const struct btf_type *t,
> > -			  const char *name, int sz, int align)
> > +			  const char *name, int sz, int align, int field_type,
> > +			  struct btf_field_info *info)
> >  {
> > -
> >  	if (__btf_type_is_struct(t))
> > -		return btf_find_struct_field(btf, t, name, sz, align);
> > +		return btf_find_struct_field(btf, t, name, sz, align, field_type, info);
> >  	else if (btf_type_is_datasec(t))
> > -		return btf_find_datasec_var(btf, t, name, sz, align);
> > +		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info);
> >  	return -EINVAL;
> >  }
> >
> > @@ -3235,16 +3273,30 @@ static int btf_find_field(const struct btf *btf, const struct btf_type *t,
> >   */
> >  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t)
> >  {
> > -	return btf_find_field(btf, t, "bpf_spin_lock",
> > -			      sizeof(struct bpf_spin_lock),
> > -			      __alignof__(struct bpf_spin_lock));
> > +	struct btf_field_info info = { .off = -ENOENT };
> > +	int ret;
> > +
> > +	ret = btf_find_field(btf, t, "bpf_spin_lock",
> > +			     sizeof(struct bpf_spin_lock),
> > +			     __alignof__(struct bpf_spin_lock),
> > +			     BTF_FIELD_SPIN_LOCK, &info);
> > +	if (ret < 0)
> > +		return ret;
> > +	return info.off;
> >  }
> >
> >  int btf_find_timer(const struct btf *btf, const struct btf_type *t)
> >  {
> > -	return btf_find_field(btf, t, "bpf_timer",
> > -			      sizeof(struct bpf_timer),
> > -			      __alignof__(struct bpf_timer));
> > +	struct btf_field_info info = { .off = -ENOENT };
> > +	int ret;
> > +
> > +	ret = btf_find_field(btf, t, "bpf_timer",
> > +			     sizeof(struct bpf_timer),
> > +			     __alignof__(struct bpf_timer),
> > +			     BTF_FIELD_TIMER, &info);
> > +	if (ret < 0)
> > +		return ret;
> > +	return info.off;
> >  }
> >
> >  static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
> > --
> > 2.35.1
> >
>
> --

--
Kartikeya

Re: [PATCH bpf-next v2 02/15] bpf: Make btf_find_field more generic

[Kumar Kartikeya Dwivedi]

On Sun, Mar 20, 2022 at 01:01:16AM IST, Kumar Kartikeya Dwivedi wrote:
> On Sat, Mar 19, 2022 at 11:25:34PM IST, Alexei Starovoitov wrote:
> > On Thu, Mar 17, 2022 at 05:29:44PM +0530, Kumar Kartikeya Dwivedi wrote:
> > > Next commit's field type will not be struct, but pointer, and it will
> > > not be limited to one offset, but multiple ones. Make existing
> > > btf_find_struct_field and btf_find_datasec_var functions amenable to use
> > > for finding BTF ID pointers in map value, by taking a moving spin_lock
> > > and timer specific checks into their own function.
> > >
> > > The alignment, and name are checked before the function is called, so it
> > > is the last point where we can skip field or return an error before the
> > > next loop iteration happens. This is important, because we'll be
> > > potentially reallocating memory inside this function in next commit, so
> > > being able to do that when everything else is in order is going to be
> > > more convenient.
> > >
> > > The name parameter is now optional, and only checked if it is not NULL.
> > >
> > > The size must be checked in the function, because in case of PTR it will
> > > instead point to the underlying BTF ID it is pointing to (or modifiers),
> > > so the check becomes wrong to do outside of function, and the base type
> > > has to be obtained by removing modifiers.
> > >
> > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > > ---
> > >  kernel/bpf/btf.c | 120 +++++++++++++++++++++++++++++++++--------------
> > >  1 file changed, 86 insertions(+), 34 deletions(-)
> > >
> > > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> > > index 17b9adcd88d3..5b2824332880 100644
> > > --- a/kernel/bpf/btf.c
> > > +++ b/kernel/bpf/btf.c
> > > @@ -3161,71 +3161,109 @@ static void btf_struct_log(struct btf_verifier_env *env,
> > >  	btf_verifier_log(env, "size=%u vlen=%u", t->size, btf_type_vlen(t));
> > >  }
> > >
> > > +enum {
> > > +	BTF_FIELD_SPIN_LOCK,
> > > +	BTF_FIELD_TIMER,
> > > +};
> > > +
> > > +struct btf_field_info {
> > > +	u32 off;
> > > +};
> > > +
> > > +static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> > > +				 u32 off, int sz, struct btf_field_info *info)
> > > +{
> > > +	if (!__btf_type_is_struct(t))
> > > +		return 0;
> > > +	if (t->size != sz)
> > > +		return 0;
> > > +	if (info->off != -ENOENT)
> > > +		/* only one such field is allowed */
> > > +		return -E2BIG;
> > > +	info->off = off;
> > > +	return 0;
> > > +}
> > > +
> > >  static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
> > > -				 const char *name, int sz, int align)
> > > +				 const char *name, int sz, int align, int field_type,
> > > +				 struct btf_field_info *info)
> > >  {
> > >  	const struct btf_member *member;
> > > -	u32 i, off = -ENOENT;
> > > +	u32 i, off;
> > > +	int ret;
> > >
> > >  	for_each_member(i, t, member) {
> > >  		const struct btf_type *member_type = btf_type_by_id(btf,
> > >  								    member->type);
> > > -		if (!__btf_type_is_struct(member_type))
> > > -			continue;
> > > -		if (member_type->size != sz)
> > > -			continue;
> > > -		if (strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
> > > -			continue;
> > > -		if (off != -ENOENT)
> > > -			/* only one such field is allowed */
> > > -			return -E2BIG;
> > > +
> > >  		off = __btf_member_bit_offset(t, member);
> > > +
> > > +		if (name && strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
> > > +			continue;
> > >  		if (off % 8)
> > >  			/* valid C code cannot generate such BTF */
> > >  			return -EINVAL;
> > >  		off /= 8;
> > >  		if (off % align)
> > >  			return -EINVAL;
> > > +
> > > +		switch (field_type) {
> > > +		case BTF_FIELD_SPIN_LOCK:
> > > +		case BTF_FIELD_TIMER:
> >
> > Since spin_lock vs timer is passed into btf_find_struct_field() as field_type
> > argument there is no need to pass name, sz, align from the caller.
> > Pls make btf_find_spin_lock() to pass BTF_FIELD_SPIN_LOCK only
> > and in the above code do something like:
> >  switch (field_type) {
> >  case BTF_FIELD_SPIN_LOCK:
> >      name = "bpf_spin_lock";
> >      sz = ...
> >      break;
> >  case BTF_FIELD_TIMER:
> >      name = "bpf_timer";
> >      sz = ...
> >      break;
> >  }
>
> Would doing this in btf_find_field be better? Then we set these once instead of
> doing it twice in btf_find_struct_field, and btf_find_datasec_var.
>
> >  switch (field_type) {
> >  case BTF_FIELD_SPIN_LOCK:
> >  case BTF_FIELD_TIMER:
> > 	if (!__btf_type_is_struct(member_type))
> > 		continue;
> > 	if (strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
> >         ...
> >         btf_find_field_struct(btf, member_type, off, sz, info);
> >  }
> >
> > It will cleanup the later patch which passes NULL, sizeof(u64), alignof(u64)
> > only to pass something into the function.
> > With above suggestion it wouldn't need to pass dummy args. BTF_FIELD_KPTR will be enough.
> >

Just to be clear, for the kptr case we still use size and align, only name is
optional. size is used for datasec_var call, align is used in both struct_field
and datasec_var. So I'm not sure whether moving it around has much effect,
instead of the caller it will now be set based on field_type inside
btf_find_field.

> > > +			ret = btf_find_field_struct(btf, member_type, off, sz, info);
> > > +			if (ret < 0)
> > > +				return ret;
> > > +			break;
> > > +		default:
> > > +			return -EFAULT;
> > > +		}
> > >  	}
> > > -	return off;
> > > +	return 0;
> > >  }
> > >
> > >  static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
> > > -				const char *name, int sz, int align)
> > > +				const char *name, int sz, int align, int field_type,
> > > +				struct btf_field_info *info)
> > >  {
> > >  	const struct btf_var_secinfo *vsi;
> > > -	u32 i, off = -ENOENT;
> > > +	u32 i, off;
> > > +	int ret;
> > >
> > >  	for_each_vsi(i, t, vsi) {
> > >  		const struct btf_type *var = btf_type_by_id(btf, vsi->type);
> > >  		const struct btf_type *var_type = btf_type_by_id(btf, var->type);
> > >
> > > -		if (!__btf_type_is_struct(var_type))
> > > -			continue;
> > > -		if (var_type->size != sz)
> > > +		off = vsi->offset;
> > > +
> > > +		if (name && strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
> > >  			continue;
> > >  		if (vsi->size != sz)
> > >  			continue;
> > > -		if (strcmp(__btf_name_by_offset(btf, var_type->name_off), name))
> > > -			continue;
> > > -		if (off != -ENOENT)
> > > -			/* only one such field is allowed */
> > > -			return -E2BIG;
> > > -		off = vsi->offset;
> > >  		if (off % align)
> > >  			return -EINVAL;
> > > +
> > > +		switch (field_type) {
> > > +		case BTF_FIELD_SPIN_LOCK:
> > > +		case BTF_FIELD_TIMER:
> > > +			ret = btf_find_field_struct(btf, var_type, off, sz, info);
> > > +			if (ret < 0)
> > > +				return ret;
> > > +			break;
> > > +		default:
> > > +			return -EFAULT;
> > > +		}
> > >  	}
> > > -	return off;
> > > +	return 0;
> > >  }
> > >
> > >  static int btf_find_field(const struct btf *btf, const struct btf_type *t,
> > > -			  const char *name, int sz, int align)
> > > +			  const char *name, int sz, int align, int field_type,
> > > +			  struct btf_field_info *info)
> > >  {
> > > -
> > >  	if (__btf_type_is_struct(t))
> > > -		return btf_find_struct_field(btf, t, name, sz, align);
> > > +		return btf_find_struct_field(btf, t, name, sz, align, field_type, info);
> > >  	else if (btf_type_is_datasec(t))
> > > -		return btf_find_datasec_var(btf, t, name, sz, align);
> > > +		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info);
> > >  	return -EINVAL;
> > >  }
> > >
> > > @@ -3235,16 +3273,30 @@ static int btf_find_field(const struct btf *btf, const struct btf_type *t,
> > >   */
> > >  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t)
> > >  {
> > > -	return btf_find_field(btf, t, "bpf_spin_lock",
> > > -			      sizeof(struct bpf_spin_lock),
> > > -			      __alignof__(struct bpf_spin_lock));
> > > +	struct btf_field_info info = { .off = -ENOENT };
> > > +	int ret;
> > > +
> > > +	ret = btf_find_field(btf, t, "bpf_spin_lock",
> > > +			     sizeof(struct bpf_spin_lock),
> > > +			     __alignof__(struct bpf_spin_lock),
> > > +			     BTF_FIELD_SPIN_LOCK, &info);
> > > +	if (ret < 0)
> > > +		return ret;
> > > +	return info.off;
> > >  }
> > >
> > >  int btf_find_timer(const struct btf *btf, const struct btf_type *t)
> > >  {
> > > -	return btf_find_field(btf, t, "bpf_timer",
> > > -			      sizeof(struct bpf_timer),
> > > -			      __alignof__(struct bpf_timer));
> > > +	struct btf_field_info info = { .off = -ENOENT };
> > > +	int ret;
> > > +
> > > +	ret = btf_find_field(btf, t, "bpf_timer",
> > > +			     sizeof(struct bpf_timer),
> > > +			     __alignof__(struct bpf_timer),
> > > +			     BTF_FIELD_TIMER, &info);
> > > +	if (ret < 0)
> > > +		return ret;
> > > +	return info.off;
> > >  }
> > >
> > >  static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
> > > --
> > > 2.35.1
> > >
> >
> > --
>
> --
> Kartikeya

--
Kartikeya

Re: [PATCH bpf-next v2 02/15] bpf: Make btf_find_field more generic

[Alexei Starovoitov]

On Sun, Mar 20, 2022 at 01:36:41AM +0530, Kumar Kartikeya Dwivedi wrote:
> > > >  			return -EINVAL;
> > > > +
> > > > +		switch (field_type) {
> > > > +		case BTF_FIELD_SPIN_LOCK:
> > > > +		case BTF_FIELD_TIMER:
> > >
> > > Since spin_lock vs timer is passed into btf_find_struct_field() as field_type
> > > argument there is no need to pass name, sz, align from the caller.
> > > Pls make btf_find_spin_lock() to pass BTF_FIELD_SPIN_LOCK only
> > > and in the above code do something like:
> > >  switch (field_type) {
> > >  case BTF_FIELD_SPIN_LOCK:
> > >      name = "bpf_spin_lock";
> > >      sz = ...
> > >      break;
> > >  case BTF_FIELD_TIMER:
> > >      name = "bpf_timer";
> > >      sz = ...
> > >      break;
> > >  }
> >
> > Would doing this in btf_find_field be better? Then we set these once instead of
> > doing it twice in btf_find_struct_field, and btf_find_datasec_var.

yeah. probably.

> >
> > >  switch (field_type) {
> > >  case BTF_FIELD_SPIN_LOCK:
> > >  case BTF_FIELD_TIMER:
> > > 	if (!__btf_type_is_struct(member_type))
> > > 		continue;
> > > 	if (strcmp(__btf_name_by_offset(btf, member_type->name_off), name))
> > >         ...
> > >         btf_find_field_struct(btf, member_type, off, sz, info);
> > >  }
> > >
> > > It will cleanup the later patch which passes NULL, sizeof(u64), alignof(u64)
> > > only to pass something into the function.
> > > With above suggestion it wouldn't need to pass dummy args. BTF_FIELD_KPTR will be enough.
> > >
> 
> Just to be clear, for the kptr case we still use size and align, only name is
> optional. size is used for datasec_var call, align is used in both struct_field
> and datasec_var. So I'm not sure whether moving it around has much effect,
> instead of the caller it will now be set based on field_type inside
> btf_find_field.

There is no use case to do BTF_FIELD_KPTR, sizeof(u64) and BTF_FIELD_KPTR, sizeof(u32), right?
So best to avoid such mistakes.
In other words consider every function to be a uapi.
Not in a way that it can never change, but from pov that you wouldn't want the user space
to specify all details for the kernel when BTF_FIELD_KPTR is enough to figure out the rest.

[PATCH bpf-next v2 03/15] bpf: Allow storing unreferenced kptr in map

[Kumar Kartikeya Dwivedi]

This commit introduces a new pointer type 'kptr' which can be embedded
in a map value as holds a PTR_TO_BTF_ID stored by a BPF program during
its invocation. Storing to such a kptr, BPF program's PTR_TO_BTF_ID
register must have the same type as in the map value's BTF, and loading
a kptr marks the destination register as PTR_TO_BTF_ID with the correct
kernel BTF and BTF ID.

Such kptr are unreferenced, i.e. by the time another invocation of the
BPF program loads this pointer, the object which the pointer points to
may not longer exist. Since PTR_TO_BTF_ID loads (using BPF_LDX) are
patched to PROBE_MEM loads by the verifier, it would safe to allow user
to still access such invalid pointer, but passing such pointers into
BPF helpers and kfuncs should not be permitted. A future patch in this
series will close this gap.

The flexibility offered by allowing programs to dereference such invalid
pointers while being safe at runtime frees the verifier from doing
complex lifetime tracking. As long as the user may ensure that the
object remains valid, it can ensure data read by it from the kernel
object is valid.

The user indicates that a certain pointer must be treated as kptr
capable of accepting stores of PTR_TO_BTF_ID of a certain type, by using
a BTF type tag 'kptr' on the pointed to type of the pointer. Then, this
information is recorded in the object BTF which will be passed into the
kernel by way of map's BTF information. The name and kind from the map
value BTF is used to look up the in-kernel type, and the actual BTF and
BTF ID is recorded in the map struct in a new kptr_off_tab member. For
now, only storing pointers to structs is permitted.

An example of this specification is shown below:

	#define __kptr __attribute__((btf_type_tag("kptr")))

	struct map_value {
		...
		struct task_struct __kptr *task;
		...
	};

Then, in a BPF program, user may store PTR_TO_BTF_ID with the type
task_struct into the map, and then load it later.

Note that the destination register is marked PTR_TO_BTF_ID_OR_NULL, as
the verifier cannot know whether the value is NULL or not statically, it
must treat all potential loads at that map value offset as loading a
possibly NULL pointer.

Only BPF_LDX, BPF_STX, and BPF_ST with insn->imm = 0 (to denote NULL)
are allowed instructions that can access such a pointer. On BPF_LDX, the
destination register is updated to be a PTR_TO_BTF_ID, and on BPF_STX,
it is checked whether the source register type is a PTR_TO_BTF_ID with
same BTF type as specified in the map BTF. The access size must always
be BPF_DW.

For the map in map support, the kptr_off_tab for outer map is copied
from the inner map's kptr_off_tab. It was chosen to do a deep copy
instead of introducing a refcount to kptr_off_tab, because the copy only
needs to be done when paramterizing using inner_map_fd in the map in map
case, hence would be unnecessary for all other users.

It is not permitted to use MAP_FREEZE command and mmap for BPF map
having kptr, similar to the bpf_timer case.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h     |  29 +++++-
 include/linux/btf.h     |   2 +
 kernel/bpf/btf.c        | 151 +++++++++++++++++++++++++----
 kernel/bpf/map_in_map.c |   5 +-
 kernel/bpf/syscall.c    | 110 ++++++++++++++++++++-
 kernel/bpf/verifier.c   | 207 ++++++++++++++++++++++++++++++++--------
 6 files changed, 442 insertions(+), 62 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 88449fbbe063..f35920d279dd 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -155,6 +155,22 @@ struct bpf_map_ops {
 	const struct bpf_iter_seq_info *iter_seq_info;
 };
 
+enum {
+	/* Support at most 8 pointers in a BPF map value */
+	BPF_MAP_VALUE_OFF_MAX = 8,
+};
+
+struct bpf_map_value_off_desc {
+	u32 offset;
+	u32 btf_id;
+	struct btf *btf;
+};
+
+struct bpf_map_value_off {
+	u32 nr_off;
+	struct bpf_map_value_off_desc off[];
+};
+
 struct bpf_map {
 	/* The first two cachelines with read-mostly members of which some
 	 * are also accessed in fast-path (e.g. ops, max_entries).
@@ -171,6 +187,7 @@ struct bpf_map {
 	u64 map_extra; /* any per-map-type extra fields */
 	u32 map_flags;
 	int spin_lock_off; /* >=0 valid offset, <0 error */
+	struct bpf_map_value_off *kptr_off_tab;
 	int timer_off; /* >=0 valid offset, <0 error */
 	u32 id;
 	int numa_node;
@@ -184,7 +201,7 @@ struct bpf_map {
 	char name[BPF_OBJ_NAME_LEN];
 	bool bypass_spec_v1;
 	bool frozen; /* write-once; write-protected by freeze_mutex */
-	/* 14 bytes hole */
+	/* 6 bytes hole */
 
 	/* The 3rd and 4th cacheline with misc members to avoid false sharing
 	 * particularly with refcounting.
@@ -217,6 +234,11 @@ static inline bool map_value_has_timer(const struct bpf_map *map)
 	return map->timer_off >= 0;
 }
 
+static inline bool map_value_has_kptr(const struct bpf_map *map)
+{
+	return !IS_ERR_OR_NULL(map->kptr_off_tab);
+}
+
 static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
 {
 	if (unlikely(map_value_has_spin_lock(map)))
@@ -1497,6 +1519,11 @@ void bpf_prog_put(struct bpf_prog *prog);
 void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
 void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
 
+struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset);
+void bpf_map_free_kptr_off_tab(struct bpf_map *map);
+struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
+bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
+
 struct bpf_map *bpf_map_get(u32 ufd);
 struct bpf_map *bpf_map_get_with_uref(u32 ufd);
 struct bpf_map *__bpf_map_get(struct fd f);
diff --git a/include/linux/btf.h b/include/linux/btf.h
index 36bc09b8e890..5b578dc81c04 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -123,6 +123,8 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
 			   u32 expected_offset, u32 expected_size);
 int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
 int btf_find_timer(const struct btf *btf, const struct btf_type *t);
+struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
+					const struct btf_type *t);
 bool btf_type_is_void(const struct btf_type *t);
 s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
 const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 5b2824332880..9ac9364ef533 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3164,33 +3164,79 @@ static void btf_struct_log(struct btf_verifier_env *env,
 enum {
 	BTF_FIELD_SPIN_LOCK,
 	BTF_FIELD_TIMER,
+	BTF_FIELD_KPTR,
+};
+
+enum {
+	BTF_FIELD_IGNORE = 0,
+	BTF_FIELD_FOUND  = 1,
 };
 
 struct btf_field_info {
+	const struct btf_type *type;
 	u32 off;
 };
 
 static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
-				 u32 off, int sz, struct btf_field_info *info)
+				 u32 off, int sz, struct btf_field_info *info,
+				 int info_cnt, int idx)
 {
 	if (!__btf_type_is_struct(t))
-		return 0;
+		return BTF_FIELD_IGNORE;
 	if (t->size != sz)
-		return 0;
-	if (info->off != -ENOENT)
-		/* only one such field is allowed */
+		return BTF_FIELD_IGNORE;
+	if (idx >= info_cnt)
 		return -E2BIG;
+	info[idx].off = off;
 	info->off = off;
-	return 0;
+	return BTF_FIELD_FOUND;
+}
+
+static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
+			       u32 off, int sz, struct btf_field_info *info,
+			       int info_cnt, int idx)
+{
+	bool kptr_tag = false;
+
+	/* For PTR, sz is always == 8 */
+	if (!btf_type_is_ptr(t))
+		return BTF_FIELD_IGNORE;
+	t = btf_type_by_id(btf, t->type);
+
+	while (btf_type_is_type_tag(t)) {
+		if (!strcmp("kptr", __btf_name_by_offset(btf, t->name_off))) {
+			/* repeated tag */
+			if (kptr_tag)
+				return -EEXIST;
+			kptr_tag = true;
+		}
+		/* Look for next tag */
+		t = btf_type_by_id(btf, t->type);
+	}
+	if (!kptr_tag)
+		return BTF_FIELD_IGNORE;
+
+	/* Get the base type */
+	if (btf_type_is_modifier(t))
+		t = btf_type_skip_modifiers(btf, t->type, NULL);
+	/* Only pointer to struct is allowed */
+	if (!__btf_type_is_struct(t))
+		return -EINVAL;
+
+	if (idx >= info_cnt)
+		return -E2BIG;
+	info[idx].type = t;
+	info[idx].off = off;
+	return BTF_FIELD_FOUND;
 }
 
 static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
 				 const char *name, int sz, int align, int field_type,
-				 struct btf_field_info *info)
+				 struct btf_field_info *info, int info_cnt)
 {
 	const struct btf_member *member;
+	int ret, idx = 0;
 	u32 i, off;
-	int ret;
 
 	for_each_member(i, t, member) {
 		const struct btf_type *member_type = btf_type_by_id(btf,
@@ -3210,24 +3256,33 @@ static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t
 		switch (field_type) {
 		case BTF_FIELD_SPIN_LOCK:
 		case BTF_FIELD_TIMER:
-			ret = btf_find_field_struct(btf, member_type, off, sz, info);
+			ret = btf_find_field_struct(btf, member_type, off, sz, info, info_cnt, idx);
+			if (ret < 0)
+				return ret;
+			break;
+		case BTF_FIELD_KPTR:
+			ret = btf_find_field_kptr(btf, member_type, off, sz, info, info_cnt, idx);
 			if (ret < 0)
 				return ret;
 			break;
 		default:
 			return -EFAULT;
 		}
+
+		if (ret == BTF_FIELD_IGNORE)
+			continue;
+		++idx;
 	}
-	return 0;
+	return idx;
 }
 
 static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
 				const char *name, int sz, int align, int field_type,
-				struct btf_field_info *info)
+				struct btf_field_info *info, int info_cnt)
 {
 	const struct btf_var_secinfo *vsi;
+	int ret, idx = 0;
 	u32 i, off;
-	int ret;
 
 	for_each_vsi(i, t, vsi) {
 		const struct btf_type *var = btf_type_by_id(btf, vsi->type);
@@ -3245,25 +3300,34 @@ static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
 		switch (field_type) {
 		case BTF_FIELD_SPIN_LOCK:
 		case BTF_FIELD_TIMER:
-			ret = btf_find_field_struct(btf, var_type, off, sz, info);
+			ret = btf_find_field_struct(btf, var_type, off, sz, info, info_cnt, idx);
+			if (ret < 0)
+				return ret;
+			break;
+		case BTF_FIELD_KPTR:
+			ret = btf_find_field_kptr(btf, var_type, off, sz, info, info_cnt, idx);
 			if (ret < 0)
 				return ret;
 			break;
 		default:
 			return -EFAULT;
 		}
+
+		if (ret == BTF_FIELD_IGNORE)
+			continue;
+		++idx;
 	}
-	return 0;
+	return idx;
 }
 
 static int btf_find_field(const struct btf *btf, const struct btf_type *t,
 			  const char *name, int sz, int align, int field_type,
-			  struct btf_field_info *info)
+			  struct btf_field_info *info, int info_cnt)
 {
 	if (__btf_type_is_struct(t))
-		return btf_find_struct_field(btf, t, name, sz, align, field_type, info);
+		return btf_find_struct_field(btf, t, name, sz, align, field_type, info, info_cnt);
 	else if (btf_type_is_datasec(t))
-		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info);
+		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info, info_cnt);
 	return -EINVAL;
 }
 
@@ -3279,7 +3343,7 @@ int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t)
 	ret = btf_find_field(btf, t, "bpf_spin_lock",
 			     sizeof(struct bpf_spin_lock),
 			     __alignof__(struct bpf_spin_lock),
-			     BTF_FIELD_SPIN_LOCK, &info);
+			     BTF_FIELD_SPIN_LOCK, &info, 1);
 	if (ret < 0)
 		return ret;
 	return info.off;
@@ -3293,12 +3357,61 @@ int btf_find_timer(const struct btf *btf, const struct btf_type *t)
 	ret = btf_find_field(btf, t, "bpf_timer",
 			     sizeof(struct bpf_timer),
 			     __alignof__(struct bpf_timer),
-			     BTF_FIELD_TIMER, &info);
+			     BTF_FIELD_TIMER, &info, 1);
 	if (ret < 0)
 		return ret;
 	return info.off;
 }
 
+struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
+					const struct btf_type *t)
+{
+	struct btf_field_info info_arr[BPF_MAP_VALUE_OFF_MAX];
+	struct bpf_map_value_off *tab;
+	int ret, i, nr_off;
+
+	/* Revisit stack usage when bumping BPF_MAP_VALUE_OFF_MAX */
+	BUILD_BUG_ON(BPF_MAP_VALUE_OFF_MAX != 8);
+
+	ret = btf_find_field(btf, t, NULL, sizeof(u64), __alignof__(u64),
+			     BTF_FIELD_KPTR, info_arr, ARRAY_SIZE(info_arr));
+	if (ret < 0)
+		return ERR_PTR(ret);
+	if (!ret)
+		return 0;
+
+	nr_off = ret;
+	tab = kzalloc(offsetof(struct bpf_map_value_off, off[nr_off]), GFP_KERNEL | __GFP_NOWARN);
+	if (!tab)
+		return ERR_PTR(-ENOMEM);
+
+	tab->nr_off = 0;
+	for (i = 0; i < nr_off; i++) {
+		const struct btf_type *t;
+		struct btf *off_btf;
+		s32 id;
+
+		t = info_arr[i].type;
+		id = bpf_find_btf_id(__btf_name_by_offset(btf, t->name_off), BTF_INFO_KIND(t->info),
+				     &off_btf);
+		if (id < 0) {
+			ret = id;
+			goto end;
+		}
+
+		tab->off[i].offset = info_arr[i].off;
+		tab->off[i].btf_id = id;
+		tab->off[i].btf = off_btf;
+		tab->nr_off = i + 1;
+	}
+	return tab;
+end:
+	while (tab->nr_off--)
+		btf_put(tab->off[tab->nr_off].btf);
+	kfree(tab);
+	return ERR_PTR(ret);
+}
+
 static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
 			      u32 type_id, void *data, u8 bits_offset,
 			      struct btf_show *show)
diff --git a/kernel/bpf/map_in_map.c b/kernel/bpf/map_in_map.c
index 5cd8f5277279..135205d0d560 100644
--- a/kernel/bpf/map_in_map.c
+++ b/kernel/bpf/map_in_map.c
@@ -52,6 +52,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
 	inner_map_meta->max_entries = inner_map->max_entries;
 	inner_map_meta->spin_lock_off = inner_map->spin_lock_off;
 	inner_map_meta->timer_off = inner_map->timer_off;
+	inner_map_meta->kptr_off_tab = bpf_map_copy_kptr_off_tab(inner_map);
 	if (inner_map->btf) {
 		btf_get(inner_map->btf);
 		inner_map_meta->btf = inner_map->btf;
@@ -71,6 +72,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
 
 void bpf_map_meta_free(struct bpf_map *map_meta)
 {
+	bpf_map_free_kptr_off_tab(map_meta);
 	btf_put(map_meta->btf);
 	kfree(map_meta);
 }
@@ -83,7 +85,8 @@ bool bpf_map_meta_equal(const struct bpf_map *meta0,
 		meta0->key_size == meta1->key_size &&
 		meta0->value_size == meta1->value_size &&
 		meta0->timer_off == meta1->timer_off &&
-		meta0->map_flags == meta1->map_flags;
+		meta0->map_flags == meta1->map_flags &&
+		bpf_map_equal_kptr_off_tab(meta0, meta1);
 }
 
 void *bpf_map_fd_get_ptr(struct bpf_map *map,
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 9beb585be5a6..87263b07f40b 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -6,6 +6,7 @@
 #include <linux/bpf_trace.h>
 #include <linux/bpf_lirc.h>
 #include <linux/bpf_verifier.h>
+#include <linux/bsearch.h>
 #include <linux/btf.h>
 #include <linux/syscalls.h>
 #include <linux/slab.h>
@@ -472,12 +473,95 @@ static void bpf_map_release_memcg(struct bpf_map *map)
 }
 #endif
 
+static int bpf_map_kptr_off_cmp(const void *a, const void *b)
+{
+	const struct bpf_map_value_off_desc *off_desc1 = a, *off_desc2 = b;
+
+	if (off_desc1->offset < off_desc2->offset)
+		return -1;
+	else if (off_desc1->offset > off_desc2->offset)
+		return 1;
+	return 0;
+}
+
+struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset)
+{
+	/* Since members are iterated in btf_find_field in increasing order,
+	 * offsets appended to kptr_off_tab are in increasing order, so we can
+	 * do bsearch to find exact match.
+	 */
+	struct bpf_map_value_off *tab;
+
+	if (!map_value_has_kptr(map))
+		return NULL;
+	tab = map->kptr_off_tab;
+	return bsearch(&offset, tab->off, tab->nr_off, sizeof(tab->off[0]), bpf_map_kptr_off_cmp);
+}
+
+void bpf_map_free_kptr_off_tab(struct bpf_map *map)
+{
+	struct bpf_map_value_off *tab = map->kptr_off_tab;
+	int i;
+
+	if (!map_value_has_kptr(map))
+		return;
+	for (i = 0; i < tab->nr_off; i++) {
+		struct btf *btf = tab->off[i].btf;
+
+		btf_put(btf);
+	}
+	kfree(tab);
+	map->kptr_off_tab = NULL;
+}
+
+struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map)
+{
+	struct bpf_map_value_off *tab = map->kptr_off_tab, *new_tab;
+	int size, i, ret;
+
+	if (!map_value_has_kptr(map))
+		return ERR_PTR(-ENOENT);
+	/* Do a deep copy of the kptr_off_tab */
+	for (i = 0; i < tab->nr_off; i++)
+		btf_get(tab->off[i].btf);
+
+	size = offsetof(struct bpf_map_value_off, off[tab->nr_off]);
+	new_tab = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
+	if (!new_tab) {
+		ret = -ENOMEM;
+		goto end;
+	}
+	memcpy(new_tab, tab, size);
+	return new_tab;
+end:
+	while (i--)
+		btf_put(tab->off[i].btf);
+	return ERR_PTR(ret);
+}
+
+bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b)
+{
+	struct bpf_map_value_off *tab_a = map_a->kptr_off_tab, *tab_b = map_b->kptr_off_tab;
+	bool a_has_kptr = map_value_has_kptr(map_a), b_has_kptr = map_value_has_kptr(map_b);
+	int size;
+
+	if (!a_has_kptr && !b_has_kptr)
+		return true;
+	if ((a_has_kptr && !b_has_kptr) || (!a_has_kptr && b_has_kptr))
+		return false;
+	if (tab_a->nr_off != tab_b->nr_off)
+		return false;
+	size = offsetof(struct bpf_map_value_off, off[tab_a->nr_off]);
+	return !memcmp(tab_a, tab_b, size);
+}
+
 /* called from workqueue */
 static void bpf_map_free_deferred(struct work_struct *work)
 {
 	struct bpf_map *map = container_of(work, struct bpf_map, work);
 
 	security_bpf_map_free(map);
+	bpf_map_free_kptr_off_tab(map);
 	bpf_map_release_memcg(map);
 	/* implementation dependent freeing */
 	map->ops->map_free(map);
@@ -639,7 +723,7 @@ static int bpf_map_mmap(struct file *filp, struct vm_area_struct *vma)
 	int err;
 
 	if (!map->ops->map_mmap || map_value_has_spin_lock(map) ||
-	    map_value_has_timer(map))
+	    map_value_has_timer(map) || map_value_has_kptr(map))
 		return -ENOTSUPP;
 
 	if (!(vma->vm_flags & VM_SHARED))
@@ -819,9 +903,29 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 			return -EOPNOTSUPP;
 	}
 
-	if (map->ops->map_check_btf)
+	map->kptr_off_tab = btf_find_kptr(btf, value_type);
+	if (map_value_has_kptr(map)) {
+		if (map->map_flags & BPF_F_RDONLY_PROG) {
+			ret = -EACCES;
+			goto free_map_tab;
+		}
+		if (map->map_type != BPF_MAP_TYPE_HASH &&
+		    map->map_type != BPF_MAP_TYPE_LRU_HASH &&
+		    map->map_type != BPF_MAP_TYPE_ARRAY) {
+			ret = -EOPNOTSUPP;
+			goto free_map_tab;
+		}
+	}
+
+	if (map->ops->map_check_btf) {
 		ret = map->ops->map_check_btf(map, btf, key_type, value_type);
+		if (ret < 0)
+			goto free_map_tab;
+	}
 
+	return ret;
+free_map_tab:
+	bpf_map_free_kptr_off_tab(map);
 	return ret;
 }
 
@@ -1638,7 +1742,7 @@ static int map_freeze(const union bpf_attr *attr)
 		return PTR_ERR(map);
 
 	if (map->map_type == BPF_MAP_TYPE_STRUCT_OPS ||
-	    map_value_has_timer(map)) {
+	    map_value_has_timer(map) || map_value_has_kptr(map)) {
 		fdput(f);
 		return -ENOTSUPP;
 	}
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index cf92f9c01556..881d1381757b 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -3469,6 +3469,143 @@ static int check_mem_region_access(struct bpf_verifier_env *env, u32 regno,
 	return 0;
 }
 
+static int __check_ptr_off_reg(struct bpf_verifier_env *env,
+			       const struct bpf_reg_state *reg, int regno,
+			       bool fixed_off_ok)
+{
+	/* Access to this pointer-typed register or passing it to a helper
+	 * is only allowed in its original, unmodified form.
+	 */
+
+	if (reg->off < 0) {
+		verbose(env, "negative offset %s ptr R%d off=%d disallowed\n",
+			reg_type_str(env, reg->type), regno, reg->off);
+		return -EACCES;
+	}
+
+	if (!fixed_off_ok && reg->off) {
+		verbose(env, "dereference of modified %s ptr R%d off=%d disallowed\n",
+			reg_type_str(env, reg->type), regno, reg->off);
+		return -EACCES;
+	}
+
+	if (!tnum_is_const(reg->var_off) || reg->var_off.value) {
+		char tn_buf[48];
+
+		tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
+		verbose(env, "variable %s access var_off=%s disallowed\n",
+			reg_type_str(env, reg->type), tn_buf);
+		return -EACCES;
+	}
+
+	return 0;
+}
+
+int check_ptr_off_reg(struct bpf_verifier_env *env,
+		      const struct bpf_reg_state *reg, int regno)
+{
+	return __check_ptr_off_reg(env, reg, regno, false);
+}
+
+static int map_kptr_match_type(struct bpf_verifier_env *env,
+			       struct bpf_map_value_off_desc *off_desc,
+			       struct bpf_reg_state *reg, u32 regno)
+{
+	const char *targ_name = kernel_type_name(off_desc->btf, off_desc->btf_id);
+	const char *reg_name = "";
+
+	if (reg->type != PTR_TO_BTF_ID && reg->type != PTR_TO_BTF_ID_OR_NULL)
+		goto bad_type;
+
+	if (!btf_is_kernel(reg->btf)) {
+		verbose(env, "R%d must point to kernel BTF\n", regno);
+		return -EINVAL;
+	}
+	/* We need to verify reg->type and reg->btf, before accessing reg->btf */
+	reg_name = kernel_type_name(reg->btf, reg->btf_id);
+
+	if (__check_ptr_off_reg(env, reg, regno, true))
+		return -EACCES;
+
+	if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
+				  off_desc->btf, off_desc->btf_id))
+		goto bad_type;
+	return 0;
+bad_type:
+	verbose(env, "invalid kptr access, R%d type=%s%s ", regno,
+		reg_type_str(env, reg->type), reg_name);
+	verbose(env, "expected=%s%s\n", reg_type_str(env, PTR_TO_BTF_ID), targ_name);
+	return -EINVAL;
+}
+
+/* Returns an error, or 0 if ignoring the access, or 1 if register state was
+ * updated, in which case later updates must be skipped.
+ */
+static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
+				 int off, int size, int value_regno,
+				 enum bpf_access_type t, int insn_idx)
+{
+	struct bpf_reg_state *reg = reg_state(env, regno), *val_reg;
+	struct bpf_insn *insn = &env->prog->insnsi[insn_idx];
+	struct bpf_map_value_off_desc *off_desc;
+	int insn_class = BPF_CLASS(insn->code);
+	struct bpf_map *map = reg->map_ptr;
+
+	/* Things we already checked for in check_map_access:
+	 *  - Reject cases where variable offset may touch BTF ID pointer
+	 *  - size of access (must be BPF_DW)
+	 *  - off_desc->offset == off + reg->var_off.value
+	 */
+	if (!tnum_is_const(reg->var_off))
+		return 0;
+
+	off_desc = bpf_map_kptr_off_contains(map, off + reg->var_off.value);
+	if (!off_desc)
+		return 0;
+
+	if (WARN_ON_ONCE(size != bpf_size_to_bytes(BPF_DW)))
+		return -EACCES;
+
+	if (BPF_MODE(insn->code) != BPF_MEM)
+		goto end;
+
+	if (!env->bpf_capable) {
+		verbose(env, "kptr access only allowed for CAP_BPF and CAP_SYS_ADMIN\n");
+		return -EPERM;
+	}
+
+	if (insn_class == BPF_LDX) {
+		if (WARN_ON_ONCE(value_regno < 0))
+			return -EFAULT;
+		val_reg = reg_state(env, value_regno);
+		/* We can simply mark the value_regno receiving the pointer
+		 * value from map as PTR_TO_BTF_ID, with the correct type.
+		 */
+		mark_btf_ld_reg(env, cur_regs(env), value_regno, PTR_TO_BTF_ID, off_desc->btf,
+				off_desc->btf_id, PTR_MAYBE_NULL);
+		val_reg->id = ++env->id_gen;
+	} else if (insn_class == BPF_STX) {
+		if (WARN_ON_ONCE(value_regno < 0))
+			return -EFAULT;
+		val_reg = reg_state(env, value_regno);
+		if (!register_is_null(val_reg) &&
+		    map_kptr_match_type(env, off_desc, val_reg, value_regno))
+			return -EACCES;
+	} else if (insn_class == BPF_ST) {
+		if (insn->imm) {
+			verbose(env, "BPF_ST imm must be 0 when storing to kptr at off=%u\n",
+				off_desc->offset);
+			return -EACCES;
+		}
+	} else {
+		goto end;
+	}
+	return 1;
+end:
+	verbose(env, "kptr in map can only be accessed using BPF_LDX/BPF_STX/BPF_ST\n");
+	return -EACCES;
+}
+
 /* check read/write into a map element with possible variable offset */
 static int check_map_access(struct bpf_verifier_env *env, u32 regno,
 			    int off, int size, bool zero_size_allowed)
@@ -3507,6 +3644,32 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
 			return -EACCES;
 		}
 	}
+	if (map_value_has_kptr(map)) {
+		struct bpf_map_value_off *tab = map->kptr_off_tab;
+		int i;
+
+		for (i = 0; i < tab->nr_off; i++) {
+			u32 p = tab->off[i].offset;
+
+			if (reg->smin_value + off < p + sizeof(u64) &&
+			    p < reg->umax_value + off + size) {
+				if (!tnum_is_const(reg->var_off)) {
+					verbose(env, "kptr access cannot have variable offset\n");
+					return -EACCES;
+				}
+				if (p != off + reg->var_off.value) {
+					verbose(env, "kptr access misaligned expected=%u off=%llu\n",
+						p, off + reg->var_off.value);
+					return -EACCES;
+				}
+				if (size != bpf_size_to_bytes(BPF_DW)) {
+					verbose(env, "kptr access size must be BPF_DW\n");
+					return -EACCES;
+				}
+				break;
+			}
+		}
+	}
 	return err;
 }
 
@@ -3980,44 +4143,6 @@ static int get_callee_stack_depth(struct bpf_verifier_env *env,
 }
 #endif
 
-static int __check_ptr_off_reg(struct bpf_verifier_env *env,
-			       const struct bpf_reg_state *reg, int regno,
-			       bool fixed_off_ok)
-{
-	/* Access to this pointer-typed register or passing it to a helper
-	 * is only allowed in its original, unmodified form.
-	 */
-
-	if (reg->off < 0) {
-		verbose(env, "negative offset %s ptr R%d off=%d disallowed\n",
-			reg_type_str(env, reg->type), regno, reg->off);
-		return -EACCES;
-	}
-
-	if (!fixed_off_ok && reg->off) {
-		verbose(env, "dereference of modified %s ptr R%d off=%d disallowed\n",
-			reg_type_str(env, reg->type), regno, reg->off);
-		return -EACCES;
-	}
-
-	if (!tnum_is_const(reg->var_off) || reg->var_off.value) {
-		char tn_buf[48];
-
-		tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
-		verbose(env, "variable %s access var_off=%s disallowed\n",
-			reg_type_str(env, reg->type), tn_buf);
-		return -EACCES;
-	}
-
-	return 0;
-}
-
-int check_ptr_off_reg(struct bpf_verifier_env *env,
-		      const struct bpf_reg_state *reg, int regno)
-{
-	return __check_ptr_off_reg(env, reg, regno, false);
-}
-
 static int __check_buffer_access(struct bpf_verifier_env *env,
 				 const char *buf_info,
 				 const struct bpf_reg_state *reg,
@@ -4421,6 +4546,10 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
 		if (err)
 			return err;
 		err = check_map_access(env, regno, off, size, false);
+		err = err ?: check_map_kptr_access(env, regno, off, size, value_regno, t, insn_idx);
+		if (err < 0)
+			return err;
+		/* if err == 0, check_map_kptr_access ignored the access */
 		if (!err && t == BPF_READ && value_regno >= 0) {
 			struct bpf_map *map = reg->map_ptr;
 
@@ -4442,6 +4571,8 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
 				mark_reg_unknown(env, regs, value_regno);
 			}
 		}
+		/* clear err == 1 */
+		err = err < 0 ? err : 0;
 	} else if (base_type(reg->type) == PTR_TO_MEM) {
 		bool rdonly_mem = type_is_rdonly_mem(reg->type);
 
-- 
2.35.1

Re: [PATCH bpf-next v2 03/15] bpf: Allow storing unreferenced kptr in map

[Alexei Starovoitov]

On Thu, Mar 17, 2022 at 05:29:45PM +0530, Kumar Kartikeya Dwivedi wrote:
> This commit introduces a new pointer type 'kptr' which can be embedded
> in a map value as holds a PTR_TO_BTF_ID stored by a BPF program during
> its invocation. Storing to such a kptr, BPF program's PTR_TO_BTF_ID
> register must have the same type as in the map value's BTF, and loading
> a kptr marks the destination register as PTR_TO_BTF_ID with the correct
> kernel BTF and BTF ID.
> 
> Such kptr are unreferenced, i.e. by the time another invocation of the
> BPF program loads this pointer, the object which the pointer points to
> may not longer exist. Since PTR_TO_BTF_ID loads (using BPF_LDX) are
> patched to PROBE_MEM loads by the verifier, it would safe to allow user
> to still access such invalid pointer, but passing such pointers into
> BPF helpers and kfuncs should not be permitted. A future patch in this
> series will close this gap.
> 
> The flexibility offered by allowing programs to dereference such invalid
> pointers while being safe at runtime frees the verifier from doing
> complex lifetime tracking. As long as the user may ensure that the
> object remains valid, it can ensure data read by it from the kernel
> object is valid.
> 
> The user indicates that a certain pointer must be treated as kptr
> capable of accepting stores of PTR_TO_BTF_ID of a certain type, by using
> a BTF type tag 'kptr' on the pointed to type of the pointer. Then, this
> information is recorded in the object BTF which will be passed into the
> kernel by way of map's BTF information. The name and kind from the map
> value BTF is used to look up the in-kernel type, and the actual BTF and
> BTF ID is recorded in the map struct in a new kptr_off_tab member. For
> now, only storing pointers to structs is permitted.
> 
> An example of this specification is shown below:
> 
> 	#define __kptr __attribute__((btf_type_tag("kptr")))
> 
> 	struct map_value {
> 		...
> 		struct task_struct __kptr *task;
> 		...
> 	};
> 
> Then, in a BPF program, user may store PTR_TO_BTF_ID with the type
> task_struct into the map, and then load it later.
> 
> Note that the destination register is marked PTR_TO_BTF_ID_OR_NULL, as
> the verifier cannot know whether the value is NULL or not statically, it
> must treat all potential loads at that map value offset as loading a
> possibly NULL pointer.
> 
> Only BPF_LDX, BPF_STX, and BPF_ST with insn->imm = 0 (to denote NULL)
> are allowed instructions that can access such a pointer. On BPF_LDX, the
> destination register is updated to be a PTR_TO_BTF_ID, and on BPF_STX,
> it is checked whether the source register type is a PTR_TO_BTF_ID with
> same BTF type as specified in the map BTF. The access size must always
> be BPF_DW.
> 
> For the map in map support, the kptr_off_tab for outer map is copied
> from the inner map's kptr_off_tab. It was chosen to do a deep copy
> instead of introducing a refcount to kptr_off_tab, because the copy only
> needs to be done when paramterizing using inner_map_fd in the map in map
> case, hence would be unnecessary for all other users.
> 
> It is not permitted to use MAP_FREEZE command and mmap for BPF map
> having kptr, similar to the bpf_timer case.
> 
> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> ---
>  include/linux/bpf.h     |  29 +++++-
>  include/linux/btf.h     |   2 +
>  kernel/bpf/btf.c        | 151 +++++++++++++++++++++++++----
>  kernel/bpf/map_in_map.c |   5 +-
>  kernel/bpf/syscall.c    | 110 ++++++++++++++++++++-
>  kernel/bpf/verifier.c   | 207 ++++++++++++++++++++++++++++++++--------
>  6 files changed, 442 insertions(+), 62 deletions(-)
> 
> diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> index 88449fbbe063..f35920d279dd 100644
> --- a/include/linux/bpf.h
> +++ b/include/linux/bpf.h
> @@ -155,6 +155,22 @@ struct bpf_map_ops {
>  	const struct bpf_iter_seq_info *iter_seq_info;
>  };
>  
> +enum {
> +	/* Support at most 8 pointers in a BPF map value */
> +	BPF_MAP_VALUE_OFF_MAX = 8,
> +};
> +
> +struct bpf_map_value_off_desc {
> +	u32 offset;
> +	u32 btf_id;
> +	struct btf *btf;
> +};
> +
> +struct bpf_map_value_off {
> +	u32 nr_off;
> +	struct bpf_map_value_off_desc off[];
> +};
> +
>  struct bpf_map {
>  	/* The first two cachelines with read-mostly members of which some
>  	 * are also accessed in fast-path (e.g. ops, max_entries).
> @@ -171,6 +187,7 @@ struct bpf_map {
>  	u64 map_extra; /* any per-map-type extra fields */
>  	u32 map_flags;
>  	int spin_lock_off; /* >=0 valid offset, <0 error */
> +	struct bpf_map_value_off *kptr_off_tab;
>  	int timer_off; /* >=0 valid offset, <0 error */
>  	u32 id;
>  	int numa_node;
> @@ -184,7 +201,7 @@ struct bpf_map {
>  	char name[BPF_OBJ_NAME_LEN];
>  	bool bypass_spec_v1;
>  	bool frozen; /* write-once; write-protected by freeze_mutex */
> -	/* 14 bytes hole */
> +	/* 6 bytes hole */
>  
>  	/* The 3rd and 4th cacheline with misc members to avoid false sharing
>  	 * particularly with refcounting.
> @@ -217,6 +234,11 @@ static inline bool map_value_has_timer(const struct bpf_map *map)
>  	return map->timer_off >= 0;
>  }
>  
> +static inline bool map_value_has_kptr(const struct bpf_map *map)
> +{
> +	return !IS_ERR_OR_NULL(map->kptr_off_tab);
> +}
> +
>  static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
>  {
>  	if (unlikely(map_value_has_spin_lock(map)))
> @@ -1497,6 +1519,11 @@ void bpf_prog_put(struct bpf_prog *prog);
>  void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
>  void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
>  
> +struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset);
> +void bpf_map_free_kptr_off_tab(struct bpf_map *map);
> +struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
> +bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
> +
>  struct bpf_map *bpf_map_get(u32 ufd);
>  struct bpf_map *bpf_map_get_with_uref(u32 ufd);
>  struct bpf_map *__bpf_map_get(struct fd f);
> diff --git a/include/linux/btf.h b/include/linux/btf.h
> index 36bc09b8e890..5b578dc81c04 100644
> --- a/include/linux/btf.h
> +++ b/include/linux/btf.h
> @@ -123,6 +123,8 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
>  			   u32 expected_offset, u32 expected_size);
>  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
>  int btf_find_timer(const struct btf *btf, const struct btf_type *t);
> +struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> +					const struct btf_type *t);
>  bool btf_type_is_void(const struct btf_type *t);
>  s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
>  const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
> diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> index 5b2824332880..9ac9364ef533 100644
> --- a/kernel/bpf/btf.c
> +++ b/kernel/bpf/btf.c
> @@ -3164,33 +3164,79 @@ static void btf_struct_log(struct btf_verifier_env *env,
>  enum {
>  	BTF_FIELD_SPIN_LOCK,
>  	BTF_FIELD_TIMER,
> +	BTF_FIELD_KPTR,
> +};
> +
> +enum {
> +	BTF_FIELD_IGNORE = 0,
> +	BTF_FIELD_FOUND  = 1,
>  };
>  
>  struct btf_field_info {
> +	const struct btf_type *type;
>  	u32 off;
>  };
>  
>  static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> -				 u32 off, int sz, struct btf_field_info *info)
> +				 u32 off, int sz, struct btf_field_info *info,
> +				 int info_cnt, int idx)
>  {
>  	if (!__btf_type_is_struct(t))
> -		return 0;
> +		return BTF_FIELD_IGNORE;
>  	if (t->size != sz)
> -		return 0;
> -	if (info->off != -ENOENT)
> -		/* only one such field is allowed */
> +		return BTF_FIELD_IGNORE;
> +	if (idx >= info_cnt)

No need to pass info_cnt, idx into this function.
Move idx >= info_cnt check into the caller and let
caller do 'info++' and pass that.
This function will simply write into 'info'.

>  		return -E2BIG;
> +	info[idx].off = off;
>  	info->off = off;

This can't be right.

> -	return 0;
> +	return BTF_FIELD_FOUND;
> +}
> +
> +static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
> +			       u32 off, int sz, struct btf_field_info *info,
> +			       int info_cnt, int idx)
> +{
> +	bool kptr_tag = false;
> +
> +	/* For PTR, sz is always == 8 */
> +	if (!btf_type_is_ptr(t))
> +		return BTF_FIELD_IGNORE;
> +	t = btf_type_by_id(btf, t->type);
> +
> +	while (btf_type_is_type_tag(t)) {
> +		if (!strcmp("kptr", __btf_name_by_offset(btf, t->name_off))) {
> +			/* repeated tag */
> +			if (kptr_tag)
> +				return -EEXIST;
> +			kptr_tag = true;
> +		}
> +		/* Look for next tag */
> +		t = btf_type_by_id(btf, t->type);
> +	}

There is no need for while() loop and 4 bool kptr_*_tag checks.
Just do:
  if (!btf_type_is_type_tag(t))
     return BTF_FIELD_IGNORE;
  /* check next tag */
  if (btf_type_is_type_tag(btf_type_by_id(btf, t->type))
     return -EINVAL;
  if (!strcmp("kptr", __btf_name_by_offset(btf, t->name_off)))
     flag = 0;
  else if (!strcmp("kptr_ref", __btf_name_by_offset(btf, t->name_off)))
    flag = BPF_MAP_VALUE_OFF_F_REF;
  ...

> +	if (!kptr_tag)
> +		return BTF_FIELD_IGNORE;
> +
> +	/* Get the base type */
> +	if (btf_type_is_modifier(t))
> +		t = btf_type_skip_modifiers(btf, t->type, NULL);
> +	/* Only pointer to struct is allowed */
> +	if (!__btf_type_is_struct(t))
> +		return -EINVAL;
> +
> +	if (idx >= info_cnt)
> +		return -E2BIG;
> +	info[idx].type = t;
> +	info[idx].off = off;
> +	return BTF_FIELD_FOUND;
>  }
>  
>  static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
>  				 const char *name, int sz, int align, int field_type,
> -				 struct btf_field_info *info)
> +				 struct btf_field_info *info, int info_cnt)
>  {
>  	const struct btf_member *member;
> +	int ret, idx = 0;
>  	u32 i, off;
> -	int ret;
>  
>  	for_each_member(i, t, member) {
>  		const struct btf_type *member_type = btf_type_by_id(btf,
> @@ -3210,24 +3256,33 @@ static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t
>  		switch (field_type) {
>  		case BTF_FIELD_SPIN_LOCK:
>  		case BTF_FIELD_TIMER:
> -			ret = btf_find_field_struct(btf, member_type, off, sz, info);
> +			ret = btf_find_field_struct(btf, member_type, off, sz, info, info_cnt, idx);
> +			if (ret < 0)
> +				return ret;
> +			break;
> +		case BTF_FIELD_KPTR:
> +			ret = btf_find_field_kptr(btf, member_type, off, sz, info, info_cnt, idx);
>  			if (ret < 0)
>  				return ret;
>  			break;
>  		default:
>  			return -EFAULT;
>  		}
> +
> +		if (ret == BTF_FIELD_IGNORE)
> +			continue;
> +		++idx;
>  	}
> -	return 0;
> +	return idx;
>  }
>  
>  static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
>  				const char *name, int sz, int align, int field_type,
> -				struct btf_field_info *info)
> +				struct btf_field_info *info, int info_cnt)
>  {
>  	const struct btf_var_secinfo *vsi;
> +	int ret, idx = 0;
>  	u32 i, off;
> -	int ret;
>  
>  	for_each_vsi(i, t, vsi) {
>  		const struct btf_type *var = btf_type_by_id(btf, vsi->type);
> @@ -3245,25 +3300,34 @@ static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
>  		switch (field_type) {
>  		case BTF_FIELD_SPIN_LOCK:
>  		case BTF_FIELD_TIMER:
> -			ret = btf_find_field_struct(btf, var_type, off, sz, info);
> +			ret = btf_find_field_struct(btf, var_type, off, sz, info, info_cnt, idx);
> +			if (ret < 0)
> +				return ret;
> +			break;
> +		case BTF_FIELD_KPTR:
> +			ret = btf_find_field_kptr(btf, var_type, off, sz, info, info_cnt, idx);
>  			if (ret < 0)
>  				return ret;
>  			break;
>  		default:
>  			return -EFAULT;
>  		}
> +
> +		if (ret == BTF_FIELD_IGNORE)
> +			continue;
> +		++idx;
>  	}
> -	return 0;
> +	return idx;
>  }
>  
>  static int btf_find_field(const struct btf *btf, const struct btf_type *t,
>  			  const char *name, int sz, int align, int field_type,
> -			  struct btf_field_info *info)
> +			  struct btf_field_info *info, int info_cnt)
>  {
>  	if (__btf_type_is_struct(t))
> -		return btf_find_struct_field(btf, t, name, sz, align, field_type, info);
> +		return btf_find_struct_field(btf, t, name, sz, align, field_type, info, info_cnt);
>  	else if (btf_type_is_datasec(t))
> -		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info);
> +		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info, info_cnt);
>  	return -EINVAL;
>  }
>  
> @@ -3279,7 +3343,7 @@ int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t)
>  	ret = btf_find_field(btf, t, "bpf_spin_lock",
>  			     sizeof(struct bpf_spin_lock),
>  			     __alignof__(struct bpf_spin_lock),
> -			     BTF_FIELD_SPIN_LOCK, &info);
> +			     BTF_FIELD_SPIN_LOCK, &info, 1);
>  	if (ret < 0)
>  		return ret;
>  	return info.off;
> @@ -3293,12 +3357,61 @@ int btf_find_timer(const struct btf *btf, const struct btf_type *t)
>  	ret = btf_find_field(btf, t, "bpf_timer",
>  			     sizeof(struct bpf_timer),
>  			     __alignof__(struct bpf_timer),
> -			     BTF_FIELD_TIMER, &info);
> +			     BTF_FIELD_TIMER, &info, 1);
>  	if (ret < 0)
>  		return ret;
>  	return info.off;
>  }
>  
> +struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> +					const struct btf_type *t)
> +{
> +	struct btf_field_info info_arr[BPF_MAP_VALUE_OFF_MAX];
> +	struct bpf_map_value_off *tab;
> +	int ret, i, nr_off;
> +
> +	/* Revisit stack usage when bumping BPF_MAP_VALUE_OFF_MAX */
> +	BUILD_BUG_ON(BPF_MAP_VALUE_OFF_MAX != 8);
> +
> +	ret = btf_find_field(btf, t, NULL, sizeof(u64), __alignof__(u64),

these pointless args will be gone with suggestion in the previous patch.

> +			     BTF_FIELD_KPTR, info_arr, ARRAY_SIZE(info_arr));
> +	if (ret < 0)
> +		return ERR_PTR(ret);
> +	if (!ret)
> +		return 0;
> +
> +	nr_off = ret;
> +	tab = kzalloc(offsetof(struct bpf_map_value_off, off[nr_off]), GFP_KERNEL | __GFP_NOWARN);
> +	if (!tab)
> +		return ERR_PTR(-ENOMEM);
> +
> +	tab->nr_off = 0;
> +	for (i = 0; i < nr_off; i++) {
> +		const struct btf_type *t;
> +		struct btf *off_btf;
> +		s32 id;
> +
> +		t = info_arr[i].type;
> +		id = bpf_find_btf_id(__btf_name_by_offset(btf, t->name_off), BTF_INFO_KIND(t->info),
> +				     &off_btf);
> +		if (id < 0) {
> +			ret = id;
> +			goto end;
> +		}
> +
> +		tab->off[i].offset = info_arr[i].off;
> +		tab->off[i].btf_id = id;
> +		tab->off[i].btf = off_btf;
> +		tab->nr_off = i + 1;
> +	}
> +	return tab;
> +end:
> +	while (tab->nr_off--)
> +		btf_put(tab->off[tab->nr_off].btf);
> +	kfree(tab);
> +	return ERR_PTR(ret);
> +}
> +
>  static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
>  			      u32 type_id, void *data, u8 bits_offset,
>  			      struct btf_show *show)
> diff --git a/kernel/bpf/map_in_map.c b/kernel/bpf/map_in_map.c
> index 5cd8f5277279..135205d0d560 100644
> --- a/kernel/bpf/map_in_map.c
> +++ b/kernel/bpf/map_in_map.c
> @@ -52,6 +52,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
>  	inner_map_meta->max_entries = inner_map->max_entries;
>  	inner_map_meta->spin_lock_off = inner_map->spin_lock_off;
>  	inner_map_meta->timer_off = inner_map->timer_off;
> +	inner_map_meta->kptr_off_tab = bpf_map_copy_kptr_off_tab(inner_map);
>  	if (inner_map->btf) {
>  		btf_get(inner_map->btf);
>  		inner_map_meta->btf = inner_map->btf;
> @@ -71,6 +72,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
>  
>  void bpf_map_meta_free(struct bpf_map *map_meta)
>  {
> +	bpf_map_free_kptr_off_tab(map_meta);
>  	btf_put(map_meta->btf);
>  	kfree(map_meta);
>  }
> @@ -83,7 +85,8 @@ bool bpf_map_meta_equal(const struct bpf_map *meta0,
>  		meta0->key_size == meta1->key_size &&
>  		meta0->value_size == meta1->value_size &&
>  		meta0->timer_off == meta1->timer_off &&
> -		meta0->map_flags == meta1->map_flags;
> +		meta0->map_flags == meta1->map_flags &&
> +		bpf_map_equal_kptr_off_tab(meta0, meta1);
>  }
>  
>  void *bpf_map_fd_get_ptr(struct bpf_map *map,
> diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
> index 9beb585be5a6..87263b07f40b 100644
> --- a/kernel/bpf/syscall.c
> +++ b/kernel/bpf/syscall.c
> @@ -6,6 +6,7 @@
>  #include <linux/bpf_trace.h>
>  #include <linux/bpf_lirc.h>
>  #include <linux/bpf_verifier.h>
> +#include <linux/bsearch.h>
>  #include <linux/btf.h>
>  #include <linux/syscalls.h>
>  #include <linux/slab.h>
> @@ -472,12 +473,95 @@ static void bpf_map_release_memcg(struct bpf_map *map)
>  }
>  #endif
>  
> +static int bpf_map_kptr_off_cmp(const void *a, const void *b)
> +{
> +	const struct bpf_map_value_off_desc *off_desc1 = a, *off_desc2 = b;
> +
> +	if (off_desc1->offset < off_desc2->offset)
> +		return -1;
> +	else if (off_desc1->offset > off_desc2->offset)
> +		return 1;
> +	return 0;
> +}
> +
> +struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset)
> +{
> +	/* Since members are iterated in btf_find_field in increasing order,
> +	 * offsets appended to kptr_off_tab are in increasing order, so we can
> +	 * do bsearch to find exact match.
> +	 */
> +	struct bpf_map_value_off *tab;
> +
> +	if (!map_value_has_kptr(map))
> +		return NULL;
> +	tab = map->kptr_off_tab;
> +	return bsearch(&offset, tab->off, tab->nr_off, sizeof(tab->off[0]), bpf_map_kptr_off_cmp);
> +}
> +
> +void bpf_map_free_kptr_off_tab(struct bpf_map *map)
> +{
> +	struct bpf_map_value_off *tab = map->kptr_off_tab;
> +	int i;
> +
> +	if (!map_value_has_kptr(map))
> +		return;
> +	for (i = 0; i < tab->nr_off; i++) {
> +		struct btf *btf = tab->off[i].btf;
> +
> +		btf_put(btf);
> +	}
> +	kfree(tab);
> +	map->kptr_off_tab = NULL;
> +}
> +
> +struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map)
> +{
> +	struct bpf_map_value_off *tab = map->kptr_off_tab, *new_tab;
> +	int size, i, ret;
> +
> +	if (!map_value_has_kptr(map))
> +		return ERR_PTR(-ENOENT);
> +	/* Do a deep copy of the kptr_off_tab */
> +	for (i = 0; i < tab->nr_off; i++)
> +		btf_get(tab->off[i].btf);
> +
> +	size = offsetof(struct bpf_map_value_off, off[tab->nr_off]);
> +	new_tab = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
> +	if (!new_tab) {
> +		ret = -ENOMEM;
> +		goto end;
> +	}
> +	memcpy(new_tab, tab, size);
> +	return new_tab;
> +end:
> +	while (i--)
> +		btf_put(tab->off[i].btf);
> +	return ERR_PTR(ret);
> +}
> +
> +bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b)
> +{
> +	struct bpf_map_value_off *tab_a = map_a->kptr_off_tab, *tab_b = map_b->kptr_off_tab;
> +	bool a_has_kptr = map_value_has_kptr(map_a), b_has_kptr = map_value_has_kptr(map_b);
> +	int size;
> +
> +	if (!a_has_kptr && !b_has_kptr)
> +		return true;
> +	if ((a_has_kptr && !b_has_kptr) || (!a_has_kptr && b_has_kptr))
> +		return false;
> +	if (tab_a->nr_off != tab_b->nr_off)
> +		return false;
> +	size = offsetof(struct bpf_map_value_off, off[tab_a->nr_off]);
> +	return !memcmp(tab_a, tab_b, size);
> +}
> +
>  /* called from workqueue */
>  static void bpf_map_free_deferred(struct work_struct *work)
>  {
>  	struct bpf_map *map = container_of(work, struct bpf_map, work);
>  
>  	security_bpf_map_free(map);
> +	bpf_map_free_kptr_off_tab(map);
>  	bpf_map_release_memcg(map);
>  	/* implementation dependent freeing */
>  	map->ops->map_free(map);
> @@ -639,7 +723,7 @@ static int bpf_map_mmap(struct file *filp, struct vm_area_struct *vma)
>  	int err;
>  
>  	if (!map->ops->map_mmap || map_value_has_spin_lock(map) ||
> -	    map_value_has_timer(map))
> +	    map_value_has_timer(map) || map_value_has_kptr(map))
>  		return -ENOTSUPP;
>  
>  	if (!(vma->vm_flags & VM_SHARED))
> @@ -819,9 +903,29 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
>  			return -EOPNOTSUPP;
>  	}
>  
> -	if (map->ops->map_check_btf)
> +	map->kptr_off_tab = btf_find_kptr(btf, value_type);
> +	if (map_value_has_kptr(map)) {
> +		if (map->map_flags & BPF_F_RDONLY_PROG) {
> +			ret = -EACCES;
> +			goto free_map_tab;
> +		}
> +		if (map->map_type != BPF_MAP_TYPE_HASH &&
> +		    map->map_type != BPF_MAP_TYPE_LRU_HASH &&
> +		    map->map_type != BPF_MAP_TYPE_ARRAY) {
> +			ret = -EOPNOTSUPP;
> +			goto free_map_tab;
> +		}
> +	}
> +
> +	if (map->ops->map_check_btf) {
>  		ret = map->ops->map_check_btf(map, btf, key_type, value_type);
> +		if (ret < 0)
> +			goto free_map_tab;
> +	}
>  
> +	return ret;
> +free_map_tab:
> +	bpf_map_free_kptr_off_tab(map);
>  	return ret;
>  }
>  
> @@ -1638,7 +1742,7 @@ static int map_freeze(const union bpf_attr *attr)
>  		return PTR_ERR(map);
>  
>  	if (map->map_type == BPF_MAP_TYPE_STRUCT_OPS ||
> -	    map_value_has_timer(map)) {
> +	    map_value_has_timer(map) || map_value_has_kptr(map)) {
>  		fdput(f);
>  		return -ENOTSUPP;
>  	}
> diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> index cf92f9c01556..881d1381757b 100644
> --- a/kernel/bpf/verifier.c
> +++ b/kernel/bpf/verifier.c
> @@ -3469,6 +3469,143 @@ static int check_mem_region_access(struct bpf_verifier_env *env, u32 regno,
>  	return 0;
>  }
>  
> +static int __check_ptr_off_reg(struct bpf_verifier_env *env,
> +			       const struct bpf_reg_state *reg, int regno,
> +			       bool fixed_off_ok)
> +{
> +	/* Access to this pointer-typed register or passing it to a helper
> +	 * is only allowed in its original, unmodified form.
> +	 */
> +
> +	if (reg->off < 0) {
> +		verbose(env, "negative offset %s ptr R%d off=%d disallowed\n",
> +			reg_type_str(env, reg->type), regno, reg->off);
> +		return -EACCES;
> +	}
> +
> +	if (!fixed_off_ok && reg->off) {
> +		verbose(env, "dereference of modified %s ptr R%d off=%d disallowed\n",
> +			reg_type_str(env, reg->type), regno, reg->off);
> +		return -EACCES;
> +	}
> +
> +	if (!tnum_is_const(reg->var_off) || reg->var_off.value) {
> +		char tn_buf[48];
> +
> +		tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
> +		verbose(env, "variable %s access var_off=%s disallowed\n",
> +			reg_type_str(env, reg->type), tn_buf);
> +		return -EACCES;
> +	}
> +
> +	return 0;
> +}
> +
> +int check_ptr_off_reg(struct bpf_verifier_env *env,
> +		      const struct bpf_reg_state *reg, int regno)
> +{
> +	return __check_ptr_off_reg(env, reg, regno, false);
> +}
> +
> +static int map_kptr_match_type(struct bpf_verifier_env *env,
> +			       struct bpf_map_value_off_desc *off_desc,
> +			       struct bpf_reg_state *reg, u32 regno)
> +{
> +	const char *targ_name = kernel_type_name(off_desc->btf, off_desc->btf_id);
> +	const char *reg_name = "";
> +
> +	if (reg->type != PTR_TO_BTF_ID && reg->type != PTR_TO_BTF_ID_OR_NULL)
> +		goto bad_type;
> +
> +	if (!btf_is_kernel(reg->btf)) {
> +		verbose(env, "R%d must point to kernel BTF\n", regno);
> +		return -EINVAL;
> +	}
> +	/* We need to verify reg->type and reg->btf, before accessing reg->btf */
> +	reg_name = kernel_type_name(reg->btf, reg->btf_id);
> +
> +	if (__check_ptr_off_reg(env, reg, regno, true))
> +		return -EACCES;
> +
> +	if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
> +				  off_desc->btf, off_desc->btf_id))
> +		goto bad_type;
> +	return 0;
> +bad_type:
> +	verbose(env, "invalid kptr access, R%d type=%s%s ", regno,
> +		reg_type_str(env, reg->type), reg_name);
> +	verbose(env, "expected=%s%s\n", reg_type_str(env, PTR_TO_BTF_ID), targ_name);
> +	return -EINVAL;
> +}
> +
> +/* Returns an error, or 0 if ignoring the access, or 1 if register state was
> + * updated, in which case later updates must be skipped.
> + */
> +static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
> +				 int off, int size, int value_regno,
> +				 enum bpf_access_type t, int insn_idx)
> +{
> +	struct bpf_reg_state *reg = reg_state(env, regno), *val_reg;
> +	struct bpf_insn *insn = &env->prog->insnsi[insn_idx];
> +	struct bpf_map_value_off_desc *off_desc;
> +	int insn_class = BPF_CLASS(insn->code);
> +	struct bpf_map *map = reg->map_ptr;
> +
> +	/* Things we already checked for in check_map_access:
> +	 *  - Reject cases where variable offset may touch BTF ID pointer
> +	 *  - size of access (must be BPF_DW)
> +	 *  - off_desc->offset == off + reg->var_off.value
> +	 */
> +	if (!tnum_is_const(reg->var_off))
> +		return 0;
> +
> +	off_desc = bpf_map_kptr_off_contains(map, off + reg->var_off.value);
> +	if (!off_desc)
> +		return 0;
> +
> +	if (WARN_ON_ONCE(size != bpf_size_to_bytes(BPF_DW)))

since the check was made, please avoid defensive progamming.

> +		return -EACCES;
> +
> +	if (BPF_MODE(insn->code) != BPF_MEM)

what is this? a fancy way to filter ldx/stx/st insns?
Pls add a comment if so.

> +		goto end;
> +
> +	if (!env->bpf_capable) {
> +		verbose(env, "kptr access only allowed for CAP_BPF and CAP_SYS_ADMIN\n");
> +		return -EPERM;

Please move this check into map_check_btf().
That's the earliest place we can issue such error.
Doing it here is so late and it doesn't help users, but makes run-time slower,
since this function is called a lot more times than map_check_btf.

> +	}
> +
> +	if (insn_class == BPF_LDX) {
> +		if (WARN_ON_ONCE(value_regno < 0))
> +			return -EFAULT;

defensive programming? Pls dont.

> +		val_reg = reg_state(env, value_regno);
> +		/* We can simply mark the value_regno receiving the pointer
> +		 * value from map as PTR_TO_BTF_ID, with the correct type.
> +		 */
> +		mark_btf_ld_reg(env, cur_regs(env), value_regno, PTR_TO_BTF_ID, off_desc->btf,
> +				off_desc->btf_id, PTR_MAYBE_NULL);
> +		val_reg->id = ++env->id_gen;
> +	} else if (insn_class == BPF_STX) {
> +		if (WARN_ON_ONCE(value_regno < 0))
> +			return -EFAULT;
> +		val_reg = reg_state(env, value_regno);
> +		if (!register_is_null(val_reg) &&
> +		    map_kptr_match_type(env, off_desc, val_reg, value_regno))
> +			return -EACCES;
> +	} else if (insn_class == BPF_ST) {
> +		if (insn->imm) {
> +			verbose(env, "BPF_ST imm must be 0 when storing to kptr at off=%u\n",
> +				off_desc->offset);
> +			return -EACCES;
> +		}
> +	} else {
> +		goto end;
> +	}
> +	return 1;
> +end:
> +	verbose(env, "kptr in map can only be accessed using BPF_LDX/BPF_STX/BPF_ST\n");
> +	return -EACCES;
> +}
> +
>  /* check read/write into a map element with possible variable offset */
>  static int check_map_access(struct bpf_verifier_env *env, u32 regno,
>  			    int off, int size, bool zero_size_allowed)
> @@ -3507,6 +3644,32 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
>  			return -EACCES;
>  		}
>  	}
> +	if (map_value_has_kptr(map)) {
> +		struct bpf_map_value_off *tab = map->kptr_off_tab;
> +		int i;
> +
> +		for (i = 0; i < tab->nr_off; i++) {
> +			u32 p = tab->off[i].offset;
> +
> +			if (reg->smin_value + off < p + sizeof(u64) &&
> +			    p < reg->umax_value + off + size) {
> +				if (!tnum_is_const(reg->var_off)) {
> +					verbose(env, "kptr access cannot have variable offset\n");
> +					return -EACCES;
> +				}
> +				if (p != off + reg->var_off.value) {
> +					verbose(env, "kptr access misaligned expected=%u off=%llu\n",
> +						p, off + reg->var_off.value);
> +					return -EACCES;
> +				}
> +				if (size != bpf_size_to_bytes(BPF_DW)) {
> +					verbose(env, "kptr access size must be BPF_DW\n");
> +					return -EACCES;
> +				}
> +				break;
> +			}
> +		}
> +	}
>  	return err;
>  }
>  
> @@ -3980,44 +4143,6 @@ static int get_callee_stack_depth(struct bpf_verifier_env *env,
>  }
>  #endif
>  
> -static int __check_ptr_off_reg(struct bpf_verifier_env *env,
> -			       const struct bpf_reg_state *reg, int regno,
> -			       bool fixed_off_ok)
> -{
> -	/* Access to this pointer-typed register or passing it to a helper
> -	 * is only allowed in its original, unmodified form.
> -	 */
> -
> -	if (reg->off < 0) {
> -		verbose(env, "negative offset %s ptr R%d off=%d disallowed\n",
> -			reg_type_str(env, reg->type), regno, reg->off);
> -		return -EACCES;
> -	}
> -
> -	if (!fixed_off_ok && reg->off) {
> -		verbose(env, "dereference of modified %s ptr R%d off=%d disallowed\n",
> -			reg_type_str(env, reg->type), regno, reg->off);
> -		return -EACCES;
> -	}
> -
> -	if (!tnum_is_const(reg->var_off) || reg->var_off.value) {
> -		char tn_buf[48];
> -
> -		tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
> -		verbose(env, "variable %s access var_off=%s disallowed\n",
> -			reg_type_str(env, reg->type), tn_buf);
> -		return -EACCES;
> -	}
> -
> -	return 0;
> -}
> -
> -int check_ptr_off_reg(struct bpf_verifier_env *env,
> -		      const struct bpf_reg_state *reg, int regno)
> -{
> -	return __check_ptr_off_reg(env, reg, regno, false);
> -}
> -

please split the hunk that moves code around into separate patch.
Don't mix it with actual changes.

>  static int __check_buffer_access(struct bpf_verifier_env *env,
>  				 const char *buf_info,
>  				 const struct bpf_reg_state *reg,
> @@ -4421,6 +4546,10 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
>  		if (err)
>  			return err;
>  		err = check_map_access(env, regno, off, size, false);
> +		err = err ?: check_map_kptr_access(env, regno, off, size, value_regno, t, insn_idx);
> +		if (err < 0)
> +			return err;
> +		/* if err == 0, check_map_kptr_access ignored the access */
>  		if (!err && t == BPF_READ && value_regno >= 0) {
>  			struct bpf_map *map = reg->map_ptr;
>  
> @@ -4442,6 +4571,8 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
>  				mark_reg_unknown(env, regs, value_regno);
>  			}
>  		}
> +		/* clear err == 1 */
> +		err = err < 0 ? err : 0;
>  	} else if (base_type(reg->type) == PTR_TO_MEM) {
>  		bool rdonly_mem = type_is_rdonly_mem(reg->type);
>  
> -- 
> 2.35.1
> 

-- 

Re: [PATCH bpf-next v2 03/15] bpf: Allow storing unreferenced kptr in map

[Kumar Kartikeya Dwivedi]

On Sat, Mar 19, 2022 at 11:45:38PM IST, Alexei Starovoitov wrote:
> On Thu, Mar 17, 2022 at 05:29:45PM +0530, Kumar Kartikeya Dwivedi wrote:
> > This commit introduces a new pointer type 'kptr' which can be embedded
> > in a map value as holds a PTR_TO_BTF_ID stored by a BPF program during
> > its invocation. Storing to such a kptr, BPF program's PTR_TO_BTF_ID
> > register must have the same type as in the map value's BTF, and loading
> > a kptr marks the destination register as PTR_TO_BTF_ID with the correct
> > kernel BTF and BTF ID.
> >
> > Such kptr are unreferenced, i.e. by the time another invocation of the
> > BPF program loads this pointer, the object which the pointer points to
> > may not longer exist. Since PTR_TO_BTF_ID loads (using BPF_LDX) are
> > patched to PROBE_MEM loads by the verifier, it would safe to allow user
> > to still access such invalid pointer, but passing such pointers into
> > BPF helpers and kfuncs should not be permitted. A future patch in this
> > series will close this gap.
> >
> > The flexibility offered by allowing programs to dereference such invalid
> > pointers while being safe at runtime frees the verifier from doing
> > complex lifetime tracking. As long as the user may ensure that the
> > object remains valid, it can ensure data read by it from the kernel
> > object is valid.
> >
> > The user indicates that a certain pointer must be treated as kptr
> > capable of accepting stores of PTR_TO_BTF_ID of a certain type, by using
> > a BTF type tag 'kptr' on the pointed to type of the pointer. Then, this
> > information is recorded in the object BTF which will be passed into the
> > kernel by way of map's BTF information. The name and kind from the map
> > value BTF is used to look up the in-kernel type, and the actual BTF and
> > BTF ID is recorded in the map struct in a new kptr_off_tab member. For
> > now, only storing pointers to structs is permitted.
> >
> > An example of this specification is shown below:
> >
> > 	#define __kptr __attribute__((btf_type_tag("kptr")))
> >
> > 	struct map_value {
> > 		...
> > 		struct task_struct __kptr *task;
> > 		...
> > 	};
> >
> > Then, in a BPF program, user may store PTR_TO_BTF_ID with the type
> > task_struct into the map, and then load it later.
> >
> > Note that the destination register is marked PTR_TO_BTF_ID_OR_NULL, as
> > the verifier cannot know whether the value is NULL or not statically, it
> > must treat all potential loads at that map value offset as loading a
> > possibly NULL pointer.
> >
> > Only BPF_LDX, BPF_STX, and BPF_ST with insn->imm = 0 (to denote NULL)
> > are allowed instructions that can access such a pointer. On BPF_LDX, the
> > destination register is updated to be a PTR_TO_BTF_ID, and on BPF_STX,
> > it is checked whether the source register type is a PTR_TO_BTF_ID with
> > same BTF type as specified in the map BTF. The access size must always
> > be BPF_DW.
> >
> > For the map in map support, the kptr_off_tab for outer map is copied
> > from the inner map's kptr_off_tab. It was chosen to do a deep copy
> > instead of introducing a refcount to kptr_off_tab, because the copy only
> > needs to be done when paramterizing using inner_map_fd in the map in map
> > case, hence would be unnecessary for all other users.
> >
> > It is not permitted to use MAP_FREEZE command and mmap for BPF map
> > having kptr, similar to the bpf_timer case.
> >
> > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > ---
> >  include/linux/bpf.h     |  29 +++++-
> >  include/linux/btf.h     |   2 +
> >  kernel/bpf/btf.c        | 151 +++++++++++++++++++++++++----
> >  kernel/bpf/map_in_map.c |   5 +-
> >  kernel/bpf/syscall.c    | 110 ++++++++++++++++++++-
> >  kernel/bpf/verifier.c   | 207 ++++++++++++++++++++++++++++++++--------
> >  6 files changed, 442 insertions(+), 62 deletions(-)
> >
> > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > index 88449fbbe063..f35920d279dd 100644
> > --- a/include/linux/bpf.h
> > +++ b/include/linux/bpf.h
> > @@ -155,6 +155,22 @@ struct bpf_map_ops {
> >  	const struct bpf_iter_seq_info *iter_seq_info;
> >  };
> >
> > +enum {
> > +	/* Support at most 8 pointers in a BPF map value */
> > +	BPF_MAP_VALUE_OFF_MAX = 8,
> > +};
> > +
> > +struct bpf_map_value_off_desc {
> > +	u32 offset;
> > +	u32 btf_id;
> > +	struct btf *btf;
> > +};
> > +
> > +struct bpf_map_value_off {
> > +	u32 nr_off;
> > +	struct bpf_map_value_off_desc off[];
> > +};
> > +
> >  struct bpf_map {
> >  	/* The first two cachelines with read-mostly members of which some
> >  	 * are also accessed in fast-path (e.g. ops, max_entries).
> > @@ -171,6 +187,7 @@ struct bpf_map {
> >  	u64 map_extra; /* any per-map-type extra fields */
> >  	u32 map_flags;
> >  	int spin_lock_off; /* >=0 valid offset, <0 error */
> > +	struct bpf_map_value_off *kptr_off_tab;
> >  	int timer_off; /* >=0 valid offset, <0 error */
> >  	u32 id;
> >  	int numa_node;
> > @@ -184,7 +201,7 @@ struct bpf_map {
> >  	char name[BPF_OBJ_NAME_LEN];
> >  	bool bypass_spec_v1;
> >  	bool frozen; /* write-once; write-protected by freeze_mutex */
> > -	/* 14 bytes hole */
> > +	/* 6 bytes hole */
> >
> >  	/* The 3rd and 4th cacheline with misc members to avoid false sharing
> >  	 * particularly with refcounting.
> > @@ -217,6 +234,11 @@ static inline bool map_value_has_timer(const struct bpf_map *map)
> >  	return map->timer_off >= 0;
> >  }
> >
> > +static inline bool map_value_has_kptr(const struct bpf_map *map)
> > +{
> > +	return !IS_ERR_OR_NULL(map->kptr_off_tab);
> > +}
> > +
> >  static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
> >  {
> >  	if (unlikely(map_value_has_spin_lock(map)))
> > @@ -1497,6 +1519,11 @@ void bpf_prog_put(struct bpf_prog *prog);
> >  void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
> >  void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
> >
> > +struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset);
> > +void bpf_map_free_kptr_off_tab(struct bpf_map *map);
> > +struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
> > +bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
> > +
> >  struct bpf_map *bpf_map_get(u32 ufd);
> >  struct bpf_map *bpf_map_get_with_uref(u32 ufd);
> >  struct bpf_map *__bpf_map_get(struct fd f);
> > diff --git a/include/linux/btf.h b/include/linux/btf.h
> > index 36bc09b8e890..5b578dc81c04 100644
> > --- a/include/linux/btf.h
> > +++ b/include/linux/btf.h
> > @@ -123,6 +123,8 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
> >  			   u32 expected_offset, u32 expected_size);
> >  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
> >  int btf_find_timer(const struct btf *btf, const struct btf_type *t);
> > +struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> > +					const struct btf_type *t);
> >  bool btf_type_is_void(const struct btf_type *t);
> >  s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
> >  const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
> > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> > index 5b2824332880..9ac9364ef533 100644
> > --- a/kernel/bpf/btf.c
> > +++ b/kernel/bpf/btf.c
> > @@ -3164,33 +3164,79 @@ static void btf_struct_log(struct btf_verifier_env *env,
> >  enum {
> >  	BTF_FIELD_SPIN_LOCK,
> >  	BTF_FIELD_TIMER,
> > +	BTF_FIELD_KPTR,
> > +};
> > +
> > +enum {
> > +	BTF_FIELD_IGNORE = 0,
> > +	BTF_FIELD_FOUND  = 1,
> >  };
> >
> >  struct btf_field_info {
> > +	const struct btf_type *type;
> >  	u32 off;
> >  };
> >
> >  static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> > -				 u32 off, int sz, struct btf_field_info *info)
> > +				 u32 off, int sz, struct btf_field_info *info,
> > +				 int info_cnt, int idx)
> >  {
> >  	if (!__btf_type_is_struct(t))
> > -		return 0;
> > +		return BTF_FIELD_IGNORE;
> >  	if (t->size != sz)
> > -		return 0;
> > -	if (info->off != -ENOENT)
> > -		/* only one such field is allowed */
> > +		return BTF_FIELD_IGNORE;
> > +	if (idx >= info_cnt)
>
> No need to pass info_cnt, idx into this function.
> Move idx >= info_cnt check into the caller and let
> caller do 'info++' and pass that.

That was what I did initially, but this check actually needs to happen after we
see that the field is of interest (i.e. not ignored by btf_find_field_*). Doing
it in caller limits total fields to info_cnt. Moving those checks out into the
caller may be the other option, but I didn't like that. I can add a comment if
it makes things clear.

> This function will simply write into 'info'.
>
> >  		return -E2BIG;
> > +	info[idx].off = off;
> >  	info->off = off;
>
> This can't be right.
>

Ouch, thanks for catching this.

> > -	return 0;
> > +	return BTF_FIELD_FOUND;
> > +}
> > +
> > +static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
> > +			       u32 off, int sz, struct btf_field_info *info,
> > +			       int info_cnt, int idx)
> > +{
> > +	bool kptr_tag = false;
> > +
> > +	/* For PTR, sz is always == 8 */
> > +	if (!btf_type_is_ptr(t))
> > +		return BTF_FIELD_IGNORE;
> > +	t = btf_type_by_id(btf, t->type);
> > +
> > +	while (btf_type_is_type_tag(t)) {
> > +		if (!strcmp("kptr", __btf_name_by_offset(btf, t->name_off))) {
> > +			/* repeated tag */
> > +			if (kptr_tag)
> > +				return -EEXIST;
> > +			kptr_tag = true;
> > +		}
> > +		/* Look for next tag */
> > +		t = btf_type_by_id(btf, t->type);
> > +	}
>
> There is no need for while() loop and 4 bool kptr_*_tag checks.
> Just do:
>   if (!btf_type_is_type_tag(t))
>      return BTF_FIELD_IGNORE;
>   /* check next tag */
>   if (btf_type_is_type_tag(btf_type_by_id(btf, t->type))
>      return -EINVAL;

But there may be other tags also in the future? Then on older kernels it would
return an error, instead of skipping over them and ignoring them.

>   if (!strcmp("kptr", __btf_name_by_offset(btf, t->name_off)))
>      flag = 0;
>   else if (!strcmp("kptr_ref", __btf_name_by_offset(btf, t->name_off)))
>     flag = BPF_MAP_VALUE_OFF_F_REF;
>   ...
>
> > +	if (!kptr_tag)
> > +		return BTF_FIELD_IGNORE;
> > +
> > +	/* Get the base type */
> > +	if (btf_type_is_modifier(t))
> > +		t = btf_type_skip_modifiers(btf, t->type, NULL);
> > +	/* Only pointer to struct is allowed */
> > +	if (!__btf_type_is_struct(t))
> > +		return -EINVAL;
> > +
> > +	if (idx >= info_cnt)
> > +		return -E2BIG;
> > +	info[idx].type = t;
> > +	info[idx].off = off;
> > +	return BTF_FIELD_FOUND;
> >  }
> >
> >  static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t,
> >  				 const char *name, int sz, int align, int field_type,
> > -				 struct btf_field_info *info)
> > +				 struct btf_field_info *info, int info_cnt)
> >  {
> >  	const struct btf_member *member;
> > +	int ret, idx = 0;
> >  	u32 i, off;
> > -	int ret;
> >
> >  	for_each_member(i, t, member) {
> >  		const struct btf_type *member_type = btf_type_by_id(btf,
> > @@ -3210,24 +3256,33 @@ static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t
> >  		switch (field_type) {
> >  		case BTF_FIELD_SPIN_LOCK:
> >  		case BTF_FIELD_TIMER:
> > -			ret = btf_find_field_struct(btf, member_type, off, sz, info);
> > +			ret = btf_find_field_struct(btf, member_type, off, sz, info, info_cnt, idx);
> > +			if (ret < 0)
> > +				return ret;
> > +			break;
> > +		case BTF_FIELD_KPTR:
> > +			ret = btf_find_field_kptr(btf, member_type, off, sz, info, info_cnt, idx);
> >  			if (ret < 0)
> >  				return ret;
> >  			break;
> >  		default:
> >  			return -EFAULT;
> >  		}
> > +
> > +		if (ret == BTF_FIELD_IGNORE)
> > +			continue;
> > +		++idx;
> >  	}
> > -	return 0;
> > +	return idx;
> >  }
> >
> >  static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
> >  				const char *name, int sz, int align, int field_type,
> > -				struct btf_field_info *info)
> > +				struct btf_field_info *info, int info_cnt)
> >  {
> >  	const struct btf_var_secinfo *vsi;
> > +	int ret, idx = 0;
> >  	u32 i, off;
> > -	int ret;
> >
> >  	for_each_vsi(i, t, vsi) {
> >  		const struct btf_type *var = btf_type_by_id(btf, vsi->type);
> > @@ -3245,25 +3300,34 @@ static int btf_find_datasec_var(const struct btf *btf, const struct btf_type *t,
> >  		switch (field_type) {
> >  		case BTF_FIELD_SPIN_LOCK:
> >  		case BTF_FIELD_TIMER:
> > -			ret = btf_find_field_struct(btf, var_type, off, sz, info);
> > +			ret = btf_find_field_struct(btf, var_type, off, sz, info, info_cnt, idx);
> > +			if (ret < 0)
> > +				return ret;
> > +			break;
> > +		case BTF_FIELD_KPTR:
> > +			ret = btf_find_field_kptr(btf, var_type, off, sz, info, info_cnt, idx);
> >  			if (ret < 0)
> >  				return ret;
> >  			break;
> >  		default:
> >  			return -EFAULT;
> >  		}
> > +
> > +		if (ret == BTF_FIELD_IGNORE)
> > +			continue;
> > +		++idx;
> >  	}
> > -	return 0;
> > +	return idx;
> >  }
> >
> >  static int btf_find_field(const struct btf *btf, const struct btf_type *t,
> >  			  const char *name, int sz, int align, int field_type,
> > -			  struct btf_field_info *info)
> > +			  struct btf_field_info *info, int info_cnt)
> >  {
> >  	if (__btf_type_is_struct(t))
> > -		return btf_find_struct_field(btf, t, name, sz, align, field_type, info);
> > +		return btf_find_struct_field(btf, t, name, sz, align, field_type, info, info_cnt);
> >  	else if (btf_type_is_datasec(t))
> > -		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info);
> > +		return btf_find_datasec_var(btf, t, name, sz, align, field_type, info, info_cnt);
> >  	return -EINVAL;
> >  }
> >
> > @@ -3279,7 +3343,7 @@ int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t)
> >  	ret = btf_find_field(btf, t, "bpf_spin_lock",
> >  			     sizeof(struct bpf_spin_lock),
> >  			     __alignof__(struct bpf_spin_lock),
> > -			     BTF_FIELD_SPIN_LOCK, &info);
> > +			     BTF_FIELD_SPIN_LOCK, &info, 1);
> >  	if (ret < 0)
> >  		return ret;
> >  	return info.off;
> > @@ -3293,12 +3357,61 @@ int btf_find_timer(const struct btf *btf, const struct btf_type *t)
> >  	ret = btf_find_field(btf, t, "bpf_timer",
> >  			     sizeof(struct bpf_timer),
> >  			     __alignof__(struct bpf_timer),
> > -			     BTF_FIELD_TIMER, &info);
> > +			     BTF_FIELD_TIMER, &info, 1);
> >  	if (ret < 0)
> >  		return ret;
> >  	return info.off;
> >  }
> >
> > +struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> > +					const struct btf_type *t)
> > +{
> > +	struct btf_field_info info_arr[BPF_MAP_VALUE_OFF_MAX];
> > +	struct bpf_map_value_off *tab;
> > +	int ret, i, nr_off;
> > +
> > +	/* Revisit stack usage when bumping BPF_MAP_VALUE_OFF_MAX */
> > +	BUILD_BUG_ON(BPF_MAP_VALUE_OFF_MAX != 8);
> > +
> > +	ret = btf_find_field(btf, t, NULL, sizeof(u64), __alignof__(u64),
>
> these pointless args will be gone with suggestion in the previous patch.
>

Agreed, will change.

> > +			     BTF_FIELD_KPTR, info_arr, ARRAY_SIZE(info_arr));
> > +	if (ret < 0)
> > +		return ERR_PTR(ret);
> > +	if (!ret)
> > +		return 0;
> > +
> > +	nr_off = ret;
> > +	tab = kzalloc(offsetof(struct bpf_map_value_off, off[nr_off]), GFP_KERNEL | __GFP_NOWARN);
> > +	if (!tab)
> > +		return ERR_PTR(-ENOMEM);
> > +
> > +	tab->nr_off = 0;
> > +	for (i = 0; i < nr_off; i++) {
> > +		const struct btf_type *t;
> > +		struct btf *off_btf;
> > +		s32 id;
> > +
> > +		t = info_arr[i].type;
> > +		id = bpf_find_btf_id(__btf_name_by_offset(btf, t->name_off), BTF_INFO_KIND(t->info),
> > +				     &off_btf);
> > +		if (id < 0) {
> > +			ret = id;
> > +			goto end;
> > +		}
> > +
> > +		tab->off[i].offset = info_arr[i].off;
> > +		tab->off[i].btf_id = id;
> > +		tab->off[i].btf = off_btf;
> > +		tab->nr_off = i + 1;
> > +	}
> > +	return tab;
> > +end:
> > +	while (tab->nr_off--)
> > +		btf_put(tab->off[tab->nr_off].btf);
> > +	kfree(tab);
> > +	return ERR_PTR(ret);
> > +}
> > +
> >  static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
> >  			      u32 type_id, void *data, u8 bits_offset,
> >  			      struct btf_show *show)
> > diff --git a/kernel/bpf/map_in_map.c b/kernel/bpf/map_in_map.c
> > index 5cd8f5277279..135205d0d560 100644
> > --- a/kernel/bpf/map_in_map.c
> > +++ b/kernel/bpf/map_in_map.c
> > @@ -52,6 +52,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
> >  	inner_map_meta->max_entries = inner_map->max_entries;
> >  	inner_map_meta->spin_lock_off = inner_map->spin_lock_off;
> >  	inner_map_meta->timer_off = inner_map->timer_off;
> > +	inner_map_meta->kptr_off_tab = bpf_map_copy_kptr_off_tab(inner_map);
> >  	if (inner_map->btf) {
> >  		btf_get(inner_map->btf);
> >  		inner_map_meta->btf = inner_map->btf;
> > @@ -71,6 +72,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd)
> >
> >  void bpf_map_meta_free(struct bpf_map *map_meta)
> >  {
> > +	bpf_map_free_kptr_off_tab(map_meta);
> >  	btf_put(map_meta->btf);
> >  	kfree(map_meta);
> >  }
> > @@ -83,7 +85,8 @@ bool bpf_map_meta_equal(const struct bpf_map *meta0,
> >  		meta0->key_size == meta1->key_size &&
> >  		meta0->value_size == meta1->value_size &&
> >  		meta0->timer_off == meta1->timer_off &&
> > -		meta0->map_flags == meta1->map_flags;
> > +		meta0->map_flags == meta1->map_flags &&
> > +		bpf_map_equal_kptr_off_tab(meta0, meta1);
> >  }
> >
> >  void *bpf_map_fd_get_ptr(struct bpf_map *map,
> > diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
> > index 9beb585be5a6..87263b07f40b 100644
> > --- a/kernel/bpf/syscall.c
> > +++ b/kernel/bpf/syscall.c
> > @@ -6,6 +6,7 @@
> >  #include <linux/bpf_trace.h>
> >  #include <linux/bpf_lirc.h>
> >  #include <linux/bpf_verifier.h>
> > +#include <linux/bsearch.h>
> >  #include <linux/btf.h>
> >  #include <linux/syscalls.h>
> >  #include <linux/slab.h>
> > @@ -472,12 +473,95 @@ static void bpf_map_release_memcg(struct bpf_map *map)
> >  }
> >  #endif
> >
> > +static int bpf_map_kptr_off_cmp(const void *a, const void *b)
> > +{
> > +	const struct bpf_map_value_off_desc *off_desc1 = a, *off_desc2 = b;
> > +
> > +	if (off_desc1->offset < off_desc2->offset)
> > +		return -1;
> > +	else if (off_desc1->offset > off_desc2->offset)
> > +		return 1;
> > +	return 0;
> > +}
> > +
> > +struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset)
> > +{
> > +	/* Since members are iterated in btf_find_field in increasing order,
> > +	 * offsets appended to kptr_off_tab are in increasing order, so we can
> > +	 * do bsearch to find exact match.
> > +	 */
> > +	struct bpf_map_value_off *tab;
> > +
> > +	if (!map_value_has_kptr(map))
> > +		return NULL;
> > +	tab = map->kptr_off_tab;
> > +	return bsearch(&offset, tab->off, tab->nr_off, sizeof(tab->off[0]), bpf_map_kptr_off_cmp);
> > +}
> > +
> > +void bpf_map_free_kptr_off_tab(struct bpf_map *map)
> > +{
> > +	struct bpf_map_value_off *tab = map->kptr_off_tab;
> > +	int i;
> > +
> > +	if (!map_value_has_kptr(map))
> > +		return;
> > +	for (i = 0; i < tab->nr_off; i++) {
> > +		struct btf *btf = tab->off[i].btf;
> > +
> > +		btf_put(btf);
> > +	}
> > +	kfree(tab);
> > +	map->kptr_off_tab = NULL;
> > +}
> > +
> > +struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map)
> > +{
> > +	struct bpf_map_value_off *tab = map->kptr_off_tab, *new_tab;
> > +	int size, i, ret;
> > +
> > +	if (!map_value_has_kptr(map))
> > +		return ERR_PTR(-ENOENT);
> > +	/* Do a deep copy of the kptr_off_tab */
> > +	for (i = 0; i < tab->nr_off; i++)
> > +		btf_get(tab->off[i].btf);
> > +
> > +	size = offsetof(struct bpf_map_value_off, off[tab->nr_off]);
> > +	new_tab = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
> > +	if (!new_tab) {
> > +		ret = -ENOMEM;
> > +		goto end;
> > +	}
> > +	memcpy(new_tab, tab, size);
> > +	return new_tab;
> > +end:
> > +	while (i--)
> > +		btf_put(tab->off[i].btf);
> > +	return ERR_PTR(ret);
> > +}
> > +
> > +bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b)
> > +{
> > +	struct bpf_map_value_off *tab_a = map_a->kptr_off_tab, *tab_b = map_b->kptr_off_tab;
> > +	bool a_has_kptr = map_value_has_kptr(map_a), b_has_kptr = map_value_has_kptr(map_b);
> > +	int size;
> > +
> > +	if (!a_has_kptr && !b_has_kptr)
> > +		return true;
> > +	if ((a_has_kptr && !b_has_kptr) || (!a_has_kptr && b_has_kptr))
> > +		return false;
> > +	if (tab_a->nr_off != tab_b->nr_off)
> > +		return false;
> > +	size = offsetof(struct bpf_map_value_off, off[tab_a->nr_off]);
> > +	return !memcmp(tab_a, tab_b, size);
> > +}
> > +
> >  /* called from workqueue */
> >  static void bpf_map_free_deferred(struct work_struct *work)
> >  {
> >  	struct bpf_map *map = container_of(work, struct bpf_map, work);
> >
> >  	security_bpf_map_free(map);
> > +	bpf_map_free_kptr_off_tab(map);
> >  	bpf_map_release_memcg(map);
> >  	/* implementation dependent freeing */
> >  	map->ops->map_free(map);
> > @@ -639,7 +723,7 @@ static int bpf_map_mmap(struct file *filp, struct vm_area_struct *vma)
> >  	int err;
> >
> >  	if (!map->ops->map_mmap || map_value_has_spin_lock(map) ||
> > -	    map_value_has_timer(map))
> > +	    map_value_has_timer(map) || map_value_has_kptr(map))
> >  		return -ENOTSUPP;
> >
> >  	if (!(vma->vm_flags & VM_SHARED))
> > @@ -819,9 +903,29 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
> >  			return -EOPNOTSUPP;
> >  	}
> >
> > -	if (map->ops->map_check_btf)
> > +	map->kptr_off_tab = btf_find_kptr(btf, value_type);
> > +	if (map_value_has_kptr(map)) {
> > +		if (map->map_flags & BPF_F_RDONLY_PROG) {
> > +			ret = -EACCES;
> > +			goto free_map_tab;
> > +		}
> > +		if (map->map_type != BPF_MAP_TYPE_HASH &&
> > +		    map->map_type != BPF_MAP_TYPE_LRU_HASH &&
> > +		    map->map_type != BPF_MAP_TYPE_ARRAY) {
> > +			ret = -EOPNOTSUPP;
> > +			goto free_map_tab;
> > +		}
> > +	}
> > +
> > +	if (map->ops->map_check_btf) {
> >  		ret = map->ops->map_check_btf(map, btf, key_type, value_type);
> > +		if (ret < 0)
> > +			goto free_map_tab;
> > +	}
> >
> > +	return ret;
> > +free_map_tab:
> > +	bpf_map_free_kptr_off_tab(map);
> >  	return ret;
> >  }
> >
> > @@ -1638,7 +1742,7 @@ static int map_freeze(const union bpf_attr *attr)
> >  		return PTR_ERR(map);
> >
> >  	if (map->map_type == BPF_MAP_TYPE_STRUCT_OPS ||
> > -	    map_value_has_timer(map)) {
> > +	    map_value_has_timer(map) || map_value_has_kptr(map)) {
> >  		fdput(f);
> >  		return -ENOTSUPP;
> >  	}
> > diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> > index cf92f9c01556..881d1381757b 100644
> > --- a/kernel/bpf/verifier.c
> > +++ b/kernel/bpf/verifier.c
> > @@ -3469,6 +3469,143 @@ static int check_mem_region_access(struct bpf_verifier_env *env, u32 regno,
> >  	return 0;
> >  }
> >
> > +static int __check_ptr_off_reg(struct bpf_verifier_env *env,
> > +			       const struct bpf_reg_state *reg, int regno,
> > +			       bool fixed_off_ok)
> > +{
> > +	/* Access to this pointer-typed register or passing it to a helper
> > +	 * is only allowed in its original, unmodified form.
> > +	 */
> > +
> > +	if (reg->off < 0) {
> > +		verbose(env, "negative offset %s ptr R%d off=%d disallowed\n",
> > +			reg_type_str(env, reg->type), regno, reg->off);
> > +		return -EACCES;
> > +	}
> > +
> > +	if (!fixed_off_ok && reg->off) {
> > +		verbose(env, "dereference of modified %s ptr R%d off=%d disallowed\n",
> > +			reg_type_str(env, reg->type), regno, reg->off);
> > +		return -EACCES;
> > +	}
> > +
> > +	if (!tnum_is_const(reg->var_off) || reg->var_off.value) {
> > +		char tn_buf[48];
> > +
> > +		tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
> > +		verbose(env, "variable %s access var_off=%s disallowed\n",
> > +			reg_type_str(env, reg->type), tn_buf);
> > +		return -EACCES;
> > +	}
> > +
> > +	return 0;
> > +}
> > +
> > +int check_ptr_off_reg(struct bpf_verifier_env *env,
> > +		      const struct bpf_reg_state *reg, int regno)
> > +{
> > +	return __check_ptr_off_reg(env, reg, regno, false);
> > +}
> > +
> > +static int map_kptr_match_type(struct bpf_verifier_env *env,
> > +			       struct bpf_map_value_off_desc *off_desc,
> > +			       struct bpf_reg_state *reg, u32 regno)
> > +{
> > +	const char *targ_name = kernel_type_name(off_desc->btf, off_desc->btf_id);
> > +	const char *reg_name = "";
> > +
> > +	if (reg->type != PTR_TO_BTF_ID && reg->type != PTR_TO_BTF_ID_OR_NULL)
> > +		goto bad_type;
> > +
> > +	if (!btf_is_kernel(reg->btf)) {
> > +		verbose(env, "R%d must point to kernel BTF\n", regno);
> > +		return -EINVAL;
> > +	}
> > +	/* We need to verify reg->type and reg->btf, before accessing reg->btf */
> > +	reg_name = kernel_type_name(reg->btf, reg->btf_id);
> > +
> > +	if (__check_ptr_off_reg(env, reg, regno, true))
> > +		return -EACCES;
> > +
> > +	if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
> > +				  off_desc->btf, off_desc->btf_id))
> > +		goto bad_type;
> > +	return 0;
> > +bad_type:
> > +	verbose(env, "invalid kptr access, R%d type=%s%s ", regno,
> > +		reg_type_str(env, reg->type), reg_name);
> > +	verbose(env, "expected=%s%s\n", reg_type_str(env, PTR_TO_BTF_ID), targ_name);
> > +	return -EINVAL;
> > +}
> > +
> > +/* Returns an error, or 0 if ignoring the access, or 1 if register state was
> > + * updated, in which case later updates must be skipped.
> > + */
> > +static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
> > +				 int off, int size, int value_regno,
> > +				 enum bpf_access_type t, int insn_idx)
> > +{
> > +	struct bpf_reg_state *reg = reg_state(env, regno), *val_reg;
> > +	struct bpf_insn *insn = &env->prog->insnsi[insn_idx];
> > +	struct bpf_map_value_off_desc *off_desc;
> > +	int insn_class = BPF_CLASS(insn->code);
> > +	struct bpf_map *map = reg->map_ptr;
> > +
> > +	/* Things we already checked for in check_map_access:
> > +	 *  - Reject cases where variable offset may touch BTF ID pointer
> > +	 *  - size of access (must be BPF_DW)
> > +	 *  - off_desc->offset == off + reg->var_off.value
> > +	 */
> > +	if (!tnum_is_const(reg->var_off))
> > +		return 0;
> > +
> > +	off_desc = bpf_map_kptr_off_contains(map, off + reg->var_off.value);
> > +	if (!off_desc)
> > +		return 0;
> > +
> > +	if (WARN_ON_ONCE(size != bpf_size_to_bytes(BPF_DW)))
>
> since the check was made, please avoid defensive progamming.
>

Ok.

> > +		return -EACCES;
> > +
> > +	if (BPF_MODE(insn->code) != BPF_MEM)
>
> what is this? a fancy way to filter ldx/stx/st insns?
> Pls add a comment if so.
>
> > +		goto end;
> > +
> > +	if (!env->bpf_capable) {
> > +		verbose(env, "kptr access only allowed for CAP_BPF and CAP_SYS_ADMIN\n");
> > +		return -EPERM;
>
> Please move this check into map_check_btf().
> That's the earliest place we can issue such error.
> Doing it here is so late and it doesn't help users, but makes run-time slower,
> since this function is called a lot more times than map_check_btf.
>

Ok, will do.

> > +	}
> > +
> > +	if (insn_class == BPF_LDX) {
> > +		if (WARN_ON_ONCE(value_regno < 0))
> > +			return -EFAULT;
>
> defensive programming? Pls dont.
>

Ok.

> > +		val_reg = reg_state(env, value_regno);
> > +		/* We can simply mark the value_regno receiving the pointer
> > +		 * value from map as PTR_TO_BTF_ID, with the correct type.
> > +		 */
> > +		mark_btf_ld_reg(env, cur_regs(env), value_regno, PTR_TO_BTF_ID, off_desc->btf,
> > +				off_desc->btf_id, PTR_MAYBE_NULL);
> > +		val_reg->id = ++env->id_gen;
> > +	} else if (insn_class == BPF_STX) {
> > +		if (WARN_ON_ONCE(value_regno < 0))
> > +			return -EFAULT;
> > +		val_reg = reg_state(env, value_regno);
> > +		if (!register_is_null(val_reg) &&
> > +		    map_kptr_match_type(env, off_desc, val_reg, value_regno))
> > +			return -EACCES;
> > +	} else if (insn_class == BPF_ST) {
> > +		if (insn->imm) {
> > +			verbose(env, "BPF_ST imm must be 0 when storing to kptr at off=%u\n",
> > +				off_desc->offset);
> > +			return -EACCES;
> > +		}
> > +	} else {
> > +		goto end;
> > +	}
> > +	return 1;
> > +end:
> > +	verbose(env, "kptr in map can only be accessed using BPF_LDX/BPF_STX/BPF_ST\n");
> > +	return -EACCES;
> > +}
> > +
> >  /* check read/write into a map element with possible variable offset */
> >  static int check_map_access(struct bpf_verifier_env *env, u32 regno,
> >  			    int off, int size, bool zero_size_allowed)
> > @@ -3507,6 +3644,32 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno,
> >  			return -EACCES;
> >  		}
> >  	}
> > +	if (map_value_has_kptr(map)) {
> > +		struct bpf_map_value_off *tab = map->kptr_off_tab;
> > +		int i;
> > +
> > +		for (i = 0; i < tab->nr_off; i++) {
> > +			u32 p = tab->off[i].offset;
> > +
> > +			if (reg->smin_value + off < p + sizeof(u64) &&
> > +			    p < reg->umax_value + off + size) {
> > +				if (!tnum_is_const(reg->var_off)) {
> > +					verbose(env, "kptr access cannot have variable offset\n");
> > +					return -EACCES;
> > +				}
> > +				if (p != off + reg->var_off.value) {
> > +					verbose(env, "kptr access misaligned expected=%u off=%llu\n",
> > +						p, off + reg->var_off.value);
> > +					return -EACCES;
> > +				}
> > +				if (size != bpf_size_to_bytes(BPF_DW)) {
> > +					verbose(env, "kptr access size must be BPF_DW\n");
> > +					return -EACCES;
> > +				}
> > +				break;
> > +			}
> > +		}
> > +	}
> >  	return err;
> >  }
> >
> > @@ -3980,44 +4143,6 @@ static int get_callee_stack_depth(struct bpf_verifier_env *env,
> >  }
> >  #endif
> >
> > -static int __check_ptr_off_reg(struct bpf_verifier_env *env,
> > -			       const struct bpf_reg_state *reg, int regno,
> > -			       bool fixed_off_ok)
> > -{
> > -	/* Access to this pointer-typed register or passing it to a helper
> > -	 * is only allowed in its original, unmodified form.
> > -	 */
> > -
> > -	if (reg->off < 0) {
> > -		verbose(env, "negative offset %s ptr R%d off=%d disallowed\n",
> > -			reg_type_str(env, reg->type), regno, reg->off);
> > -		return -EACCES;
> > -	}
> > -
> > -	if (!fixed_off_ok && reg->off) {
> > -		verbose(env, "dereference of modified %s ptr R%d off=%d disallowed\n",
> > -			reg_type_str(env, reg->type), regno, reg->off);
> > -		return -EACCES;
> > -	}
> > -
> > -	if (!tnum_is_const(reg->var_off) || reg->var_off.value) {
> > -		char tn_buf[48];
> > -
> > -		tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
> > -		verbose(env, "variable %s access var_off=%s disallowed\n",
> > -			reg_type_str(env, reg->type), tn_buf);
> > -		return -EACCES;
> > -	}
> > -
> > -	return 0;
> > -}
> > -
> > -int check_ptr_off_reg(struct bpf_verifier_env *env,
> > -		      const struct bpf_reg_state *reg, int regno)
> > -{
> > -	return __check_ptr_off_reg(env, reg, regno, false);
> > -}
> > -
>
> please split the hunk that moves code around into separate patch.
> Don't mix it with actual changes.
>

Ok, will split into a separate patch.

> >  static int __check_buffer_access(struct bpf_verifier_env *env,
> >  				 const char *buf_info,
> >  				 const struct bpf_reg_state *reg,
> > @@ -4421,6 +4546,10 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
> >  		if (err)
> >  			return err;
> >  		err = check_map_access(env, regno, off, size, false);
> > +		err = err ?: check_map_kptr_access(env, regno, off, size, value_regno, t, insn_idx);
> > +		if (err < 0)
> > +			return err;
> > +		/* if err == 0, check_map_kptr_access ignored the access */
> >  		if (!err && t == BPF_READ && value_regno >= 0) {
> >  			struct bpf_map *map = reg->map_ptr;
> >
> > @@ -4442,6 +4571,8 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
> >  				mark_reg_unknown(env, regs, value_regno);
> >  			}
> >  		}
> > +		/* clear err == 1 */
> > +		err = err < 0 ? err : 0;
> >  	} else if (base_type(reg->type) == PTR_TO_MEM) {
> >  		bool rdonly_mem = type_is_rdonly_mem(reg->type);
> >
> > --
> > 2.35.1
> >
>
> --

--
Kartikeya

Re: [PATCH bpf-next v2 03/15] bpf: Allow storing unreferenced kptr in map

[Alexei Starovoitov]

On Sun, Mar 20, 2022 at 12:22:51AM +0530, Kumar Kartikeya Dwivedi wrote:
> On Sat, Mar 19, 2022 at 11:45:38PM IST, Alexei Starovoitov wrote:
> > On Thu, Mar 17, 2022 at 05:29:45PM +0530, Kumar Kartikeya Dwivedi wrote:
> > > This commit introduces a new pointer type 'kptr' which can be embedded
> > > in a map value as holds a PTR_TO_BTF_ID stored by a BPF program during
> > > its invocation. Storing to such a kptr, BPF program's PTR_TO_BTF_ID
> > > register must have the same type as in the map value's BTF, and loading
> > > a kptr marks the destination register as PTR_TO_BTF_ID with the correct
> > > kernel BTF and BTF ID.
> > >
> > > Such kptr are unreferenced, i.e. by the time another invocation of the
> > > BPF program loads this pointer, the object which the pointer points to
> > > may not longer exist. Since PTR_TO_BTF_ID loads (using BPF_LDX) are
> > > patched to PROBE_MEM loads by the verifier, it would safe to allow user
> > > to still access such invalid pointer, but passing such pointers into
> > > BPF helpers and kfuncs should not be permitted. A future patch in this
> > > series will close this gap.
> > >
> > > The flexibility offered by allowing programs to dereference such invalid
> > > pointers while being safe at runtime frees the verifier from doing
> > > complex lifetime tracking. As long as the user may ensure that the
> > > object remains valid, it can ensure data read by it from the kernel
> > > object is valid.
> > >
> > > The user indicates that a certain pointer must be treated as kptr
> > > capable of accepting stores of PTR_TO_BTF_ID of a certain type, by using
> > > a BTF type tag 'kptr' on the pointed to type of the pointer. Then, this
> > > information is recorded in the object BTF which will be passed into the
> > > kernel by way of map's BTF information. The name and kind from the map
> > > value BTF is used to look up the in-kernel type, and the actual BTF and
> > > BTF ID is recorded in the map struct in a new kptr_off_tab member. For
> > > now, only storing pointers to structs is permitted.
> > >
> > > An example of this specification is shown below:
> > >
> > > 	#define __kptr __attribute__((btf_type_tag("kptr")))
> > >
> > > 	struct map_value {
> > > 		...
> > > 		struct task_struct __kptr *task;
> > > 		...
> > > 	};
> > >
> > > Then, in a BPF program, user may store PTR_TO_BTF_ID with the type
> > > task_struct into the map, and then load it later.
> > >
> > > Note that the destination register is marked PTR_TO_BTF_ID_OR_NULL, as
> > > the verifier cannot know whether the value is NULL or not statically, it
> > > must treat all potential loads at that map value offset as loading a
> > > possibly NULL pointer.
> > >
> > > Only BPF_LDX, BPF_STX, and BPF_ST with insn->imm = 0 (to denote NULL)
> > > are allowed instructions that can access such a pointer. On BPF_LDX, the
> > > destination register is updated to be a PTR_TO_BTF_ID, and on BPF_STX,
> > > it is checked whether the source register type is a PTR_TO_BTF_ID with
> > > same BTF type as specified in the map BTF. The access size must always
> > > be BPF_DW.
> > >
> > > For the map in map support, the kptr_off_tab for outer map is copied
> > > from the inner map's kptr_off_tab. It was chosen to do a deep copy
> > > instead of introducing a refcount to kptr_off_tab, because the copy only
> > > needs to be done when paramterizing using inner_map_fd in the map in map
> > > case, hence would be unnecessary for all other users.
> > >
> > > It is not permitted to use MAP_FREEZE command and mmap for BPF map
> > > having kptr, similar to the bpf_timer case.
> > >
> > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > > ---
> > >  include/linux/bpf.h     |  29 +++++-
> > >  include/linux/btf.h     |   2 +
> > >  kernel/bpf/btf.c        | 151 +++++++++++++++++++++++++----
> > >  kernel/bpf/map_in_map.c |   5 +-
> > >  kernel/bpf/syscall.c    | 110 ++++++++++++++++++++-
> > >  kernel/bpf/verifier.c   | 207 ++++++++++++++++++++++++++++++++--------
> > >  6 files changed, 442 insertions(+), 62 deletions(-)
> > >
> > > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > > index 88449fbbe063..f35920d279dd 100644
> > > --- a/include/linux/bpf.h
> > > +++ b/include/linux/bpf.h
> > > @@ -155,6 +155,22 @@ struct bpf_map_ops {
> > >  	const struct bpf_iter_seq_info *iter_seq_info;
> > >  };
> > >
> > > +enum {
> > > +	/* Support at most 8 pointers in a BPF map value */
> > > +	BPF_MAP_VALUE_OFF_MAX = 8,
> > > +};
> > > +
> > > +struct bpf_map_value_off_desc {
> > > +	u32 offset;
> > > +	u32 btf_id;
> > > +	struct btf *btf;
> > > +};
> > > +
> > > +struct bpf_map_value_off {
> > > +	u32 nr_off;
> > > +	struct bpf_map_value_off_desc off[];
> > > +};
> > > +
> > >  struct bpf_map {
> > >  	/* The first two cachelines with read-mostly members of which some
> > >  	 * are also accessed in fast-path (e.g. ops, max_entries).
> > > @@ -171,6 +187,7 @@ struct bpf_map {
> > >  	u64 map_extra; /* any per-map-type extra fields */
> > >  	u32 map_flags;
> > >  	int spin_lock_off; /* >=0 valid offset, <0 error */
> > > +	struct bpf_map_value_off *kptr_off_tab;
> > >  	int timer_off; /* >=0 valid offset, <0 error */
> > >  	u32 id;
> > >  	int numa_node;
> > > @@ -184,7 +201,7 @@ struct bpf_map {
> > >  	char name[BPF_OBJ_NAME_LEN];
> > >  	bool bypass_spec_v1;
> > >  	bool frozen; /* write-once; write-protected by freeze_mutex */
> > > -	/* 14 bytes hole */
> > > +	/* 6 bytes hole */
> > >
> > >  	/* The 3rd and 4th cacheline with misc members to avoid false sharing
> > >  	 * particularly with refcounting.
> > > @@ -217,6 +234,11 @@ static inline bool map_value_has_timer(const struct bpf_map *map)
> > >  	return map->timer_off >= 0;
> > >  }
> > >
> > > +static inline bool map_value_has_kptr(const struct bpf_map *map)
> > > +{
> > > +	return !IS_ERR_OR_NULL(map->kptr_off_tab);
> > > +}
> > > +
> > >  static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
> > >  {
> > >  	if (unlikely(map_value_has_spin_lock(map)))
> > > @@ -1497,6 +1519,11 @@ void bpf_prog_put(struct bpf_prog *prog);
> > >  void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
> > >  void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
> > >
> > > +struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset);
> > > +void bpf_map_free_kptr_off_tab(struct bpf_map *map);
> > > +struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
> > > +bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
> > > +
> > >  struct bpf_map *bpf_map_get(u32 ufd);
> > >  struct bpf_map *bpf_map_get_with_uref(u32 ufd);
> > >  struct bpf_map *__bpf_map_get(struct fd f);
> > > diff --git a/include/linux/btf.h b/include/linux/btf.h
> > > index 36bc09b8e890..5b578dc81c04 100644
> > > --- a/include/linux/btf.h
> > > +++ b/include/linux/btf.h
> > > @@ -123,6 +123,8 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
> > >  			   u32 expected_offset, u32 expected_size);
> > >  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
> > >  int btf_find_timer(const struct btf *btf, const struct btf_type *t);
> > > +struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> > > +					const struct btf_type *t);
> > >  bool btf_type_is_void(const struct btf_type *t);
> > >  s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
> > >  const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
> > > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> > > index 5b2824332880..9ac9364ef533 100644
> > > --- a/kernel/bpf/btf.c
> > > +++ b/kernel/bpf/btf.c
> > > @@ -3164,33 +3164,79 @@ static void btf_struct_log(struct btf_verifier_env *env,
> > >  enum {
> > >  	BTF_FIELD_SPIN_LOCK,
> > >  	BTF_FIELD_TIMER,
> > > +	BTF_FIELD_KPTR,
> > > +};
> > > +
> > > +enum {
> > > +	BTF_FIELD_IGNORE = 0,
> > > +	BTF_FIELD_FOUND  = 1,
> > >  };
> > >
> > >  struct btf_field_info {
> > > +	const struct btf_type *type;
> > >  	u32 off;
> > >  };
> > >
> > >  static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> > > -				 u32 off, int sz, struct btf_field_info *info)
> > > +				 u32 off, int sz, struct btf_field_info *info,
> > > +				 int info_cnt, int idx)
> > >  {
> > >  	if (!__btf_type_is_struct(t))
> > > -		return 0;
> > > +		return BTF_FIELD_IGNORE;
> > >  	if (t->size != sz)
> > > -		return 0;
> > > -	if (info->off != -ENOENT)
> > > -		/* only one such field is allowed */
> > > +		return BTF_FIELD_IGNORE;
> > > +	if (idx >= info_cnt)
> >
> > No need to pass info_cnt, idx into this function.
> > Move idx >= info_cnt check into the caller and let
> > caller do 'info++' and pass that.
> 
> That was what I did initially, but this check actually needs to happen after we
> see that the field is of interest (i.e. not ignored by btf_find_field_*). Doing
> it in caller limits total fields to info_cnt. Moving those checks out into the
> caller may be the other option, but I didn't like that. I can add a comment if
> it makes things clear.

don't increment info unconditionally?
only when field is found.

> 
> > This function will simply write into 'info'.
> >
> > >  		return -E2BIG;
> > > +	info[idx].off = off;
> > >  	info->off = off;
> >
> > This can't be right.
> >
> 
> Ouch, thanks for catching this.
> 
> > > -	return 0;
> > > +	return BTF_FIELD_FOUND;
> > > +}
> > > +
> > > +static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
> > > +			       u32 off, int sz, struct btf_field_info *info,
> > > +			       int info_cnt, int idx)
> > > +{
> > > +	bool kptr_tag = false;
> > > +
> > > +	/* For PTR, sz is always == 8 */
> > > +	if (!btf_type_is_ptr(t))
> > > +		return BTF_FIELD_IGNORE;
> > > +	t = btf_type_by_id(btf, t->type);
> > > +
> > > +	while (btf_type_is_type_tag(t)) {
> > > +		if (!strcmp("kptr", __btf_name_by_offset(btf, t->name_off))) {
> > > +			/* repeated tag */
> > > +			if (kptr_tag)
> > > +				return -EEXIST;
> > > +			kptr_tag = true;
> > > +		}
> > > +		/* Look for next tag */
> > > +		t = btf_type_by_id(btf, t->type);
> > > +	}
> >
> > There is no need for while() loop and 4 bool kptr_*_tag checks.
> > Just do:
> >   if (!btf_type_is_type_tag(t))
> >      return BTF_FIELD_IGNORE;
> >   /* check next tag */
> >   if (btf_type_is_type_tag(btf_type_by_id(btf, t->type))
> >      return -EINVAL;
> 
> But there may be other tags also in the future? Then on older kernels it would
> return an error, instead of skipping over them and ignoring them.

and that would be correct behavior.
If there is a tag it should be meaningful. The kernel shouldn't ignore them.

Re: [PATCH bpf-next v2 03/15] bpf: Allow storing unreferenced kptr in map

[Kumar Kartikeya Dwivedi]

On Sun, Mar 20, 2022 at 02:47:54AM IST, Alexei Starovoitov wrote:
> On Sun, Mar 20, 2022 at 12:22:51AM +0530, Kumar Kartikeya Dwivedi wrote:
> > On Sat, Mar 19, 2022 at 11:45:38PM IST, Alexei Starovoitov wrote:
> > > On Thu, Mar 17, 2022 at 05:29:45PM +0530, Kumar Kartikeya Dwivedi wrote:
> > > > This commit introduces a new pointer type 'kptr' which can be embedded
> > > > in a map value as holds a PTR_TO_BTF_ID stored by a BPF program during
> > > > its invocation. Storing to such a kptr, BPF program's PTR_TO_BTF_ID
> > > > register must have the same type as in the map value's BTF, and loading
> > > > a kptr marks the destination register as PTR_TO_BTF_ID with the correct
> > > > kernel BTF and BTF ID.
> > > >
> > > > Such kptr are unreferenced, i.e. by the time another invocation of the
> > > > BPF program loads this pointer, the object which the pointer points to
> > > > may not longer exist. Since PTR_TO_BTF_ID loads (using BPF_LDX) are
> > > > patched to PROBE_MEM loads by the verifier, it would safe to allow user
> > > > to still access such invalid pointer, but passing such pointers into
> > > > BPF helpers and kfuncs should not be permitted. A future patch in this
> > > > series will close this gap.
> > > >
> > > > The flexibility offered by allowing programs to dereference such invalid
> > > > pointers while being safe at runtime frees the verifier from doing
> > > > complex lifetime tracking. As long as the user may ensure that the
> > > > object remains valid, it can ensure data read by it from the kernel
> > > > object is valid.
> > > >
> > > > The user indicates that a certain pointer must be treated as kptr
> > > > capable of accepting stores of PTR_TO_BTF_ID of a certain type, by using
> > > > a BTF type tag 'kptr' on the pointed to type of the pointer. Then, this
> > > > information is recorded in the object BTF which will be passed into the
> > > > kernel by way of map's BTF information. The name and kind from the map
> > > > value BTF is used to look up the in-kernel type, and the actual BTF and
> > > > BTF ID is recorded in the map struct in a new kptr_off_tab member. For
> > > > now, only storing pointers to structs is permitted.
> > > >
> > > > An example of this specification is shown below:
> > > >
> > > > 	#define __kptr __attribute__((btf_type_tag("kptr")))
> > > >
> > > > 	struct map_value {
> > > > 		...
> > > > 		struct task_struct __kptr *task;
> > > > 		...
> > > > 	};
> > > >
> > > > Then, in a BPF program, user may store PTR_TO_BTF_ID with the type
> > > > task_struct into the map, and then load it later.
> > > >
> > > > Note that the destination register is marked PTR_TO_BTF_ID_OR_NULL, as
> > > > the verifier cannot know whether the value is NULL or not statically, it
> > > > must treat all potential loads at that map value offset as loading a
> > > > possibly NULL pointer.
> > > >
> > > > Only BPF_LDX, BPF_STX, and BPF_ST with insn->imm = 0 (to denote NULL)
> > > > are allowed instructions that can access such a pointer. On BPF_LDX, the
> > > > destination register is updated to be a PTR_TO_BTF_ID, and on BPF_STX,
> > > > it is checked whether the source register type is a PTR_TO_BTF_ID with
> > > > same BTF type as specified in the map BTF. The access size must always
> > > > be BPF_DW.
> > > >
> > > > For the map in map support, the kptr_off_tab for outer map is copied
> > > > from the inner map's kptr_off_tab. It was chosen to do a deep copy
> > > > instead of introducing a refcount to kptr_off_tab, because the copy only
> > > > needs to be done when paramterizing using inner_map_fd in the map in map
> > > > case, hence would be unnecessary for all other users.
> > > >
> > > > It is not permitted to use MAP_FREEZE command and mmap for BPF map
> > > > having kptr, similar to the bpf_timer case.
> > > >
> > > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > > > ---
> > > >  include/linux/bpf.h     |  29 +++++-
> > > >  include/linux/btf.h     |   2 +
> > > >  kernel/bpf/btf.c        | 151 +++++++++++++++++++++++++----
> > > >  kernel/bpf/map_in_map.c |   5 +-
> > > >  kernel/bpf/syscall.c    | 110 ++++++++++++++++++++-
> > > >  kernel/bpf/verifier.c   | 207 ++++++++++++++++++++++++++++++++--------
> > > >  6 files changed, 442 insertions(+), 62 deletions(-)
> > > >
> > > > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > > > index 88449fbbe063..f35920d279dd 100644
> > > > --- a/include/linux/bpf.h
> > > > +++ b/include/linux/bpf.h
> > > > @@ -155,6 +155,22 @@ struct bpf_map_ops {
> > > >  	const struct bpf_iter_seq_info *iter_seq_info;
> > > >  };
> > > >
> > > > +enum {
> > > > +	/* Support at most 8 pointers in a BPF map value */
> > > > +	BPF_MAP_VALUE_OFF_MAX = 8,
> > > > +};
> > > > +
> > > > +struct bpf_map_value_off_desc {
> > > > +	u32 offset;
> > > > +	u32 btf_id;
> > > > +	struct btf *btf;
> > > > +};
> > > > +
> > > > +struct bpf_map_value_off {
> > > > +	u32 nr_off;
> > > > +	struct bpf_map_value_off_desc off[];
> > > > +};
> > > > +
> > > >  struct bpf_map {
> > > >  	/* The first two cachelines with read-mostly members of which some
> > > >  	 * are also accessed in fast-path (e.g. ops, max_entries).
> > > > @@ -171,6 +187,7 @@ struct bpf_map {
> > > >  	u64 map_extra; /* any per-map-type extra fields */
> > > >  	u32 map_flags;
> > > >  	int spin_lock_off; /* >=0 valid offset, <0 error */
> > > > +	struct bpf_map_value_off *kptr_off_tab;
> > > >  	int timer_off; /* >=0 valid offset, <0 error */
> > > >  	u32 id;
> > > >  	int numa_node;
> > > > @@ -184,7 +201,7 @@ struct bpf_map {
> > > >  	char name[BPF_OBJ_NAME_LEN];
> > > >  	bool bypass_spec_v1;
> > > >  	bool frozen; /* write-once; write-protected by freeze_mutex */
> > > > -	/* 14 bytes hole */
> > > > +	/* 6 bytes hole */
> > > >
> > > >  	/* The 3rd and 4th cacheline with misc members to avoid false sharing
> > > >  	 * particularly with refcounting.
> > > > @@ -217,6 +234,11 @@ static inline bool map_value_has_timer(const struct bpf_map *map)
> > > >  	return map->timer_off >= 0;
> > > >  }
> > > >
> > > > +static inline bool map_value_has_kptr(const struct bpf_map *map)
> > > > +{
> > > > +	return !IS_ERR_OR_NULL(map->kptr_off_tab);
> > > > +}
> > > > +
> > > >  static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
> > > >  {
> > > >  	if (unlikely(map_value_has_spin_lock(map)))
> > > > @@ -1497,6 +1519,11 @@ void bpf_prog_put(struct bpf_prog *prog);
> > > >  void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
> > > >  void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
> > > >
> > > > +struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset);
> > > > +void bpf_map_free_kptr_off_tab(struct bpf_map *map);
> > > > +struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
> > > > +bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
> > > > +
> > > >  struct bpf_map *bpf_map_get(u32 ufd);
> > > >  struct bpf_map *bpf_map_get_with_uref(u32 ufd);
> > > >  struct bpf_map *__bpf_map_get(struct fd f);
> > > > diff --git a/include/linux/btf.h b/include/linux/btf.h
> > > > index 36bc09b8e890..5b578dc81c04 100644
> > > > --- a/include/linux/btf.h
> > > > +++ b/include/linux/btf.h
> > > > @@ -123,6 +123,8 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
> > > >  			   u32 expected_offset, u32 expected_size);
> > > >  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
> > > >  int btf_find_timer(const struct btf *btf, const struct btf_type *t);
> > > > +struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> > > > +					const struct btf_type *t);
> > > >  bool btf_type_is_void(const struct btf_type *t);
> > > >  s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
> > > >  const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
> > > > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> > > > index 5b2824332880..9ac9364ef533 100644
> > > > --- a/kernel/bpf/btf.c
> > > > +++ b/kernel/bpf/btf.c
> > > > @@ -3164,33 +3164,79 @@ static void btf_struct_log(struct btf_verifier_env *env,
> > > >  enum {
> > > >  	BTF_FIELD_SPIN_LOCK,
> > > >  	BTF_FIELD_TIMER,
> > > > +	BTF_FIELD_KPTR,
> > > > +};
> > > > +
> > > > +enum {
> > > > +	BTF_FIELD_IGNORE = 0,
> > > > +	BTF_FIELD_FOUND  = 1,
> > > >  };
> > > >
> > > >  struct btf_field_info {
> > > > +	const struct btf_type *type;
> > > >  	u32 off;
> > > >  };
> > > >
> > > >  static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> > > > -				 u32 off, int sz, struct btf_field_info *info)
> > > > +				 u32 off, int sz, struct btf_field_info *info,
> > > > +				 int info_cnt, int idx)
> > > >  {
> > > >  	if (!__btf_type_is_struct(t))
> > > > -		return 0;
> > > > +		return BTF_FIELD_IGNORE;
> > > >  	if (t->size != sz)
> > > > -		return 0;
> > > > -	if (info->off != -ENOENT)
> > > > -		/* only one such field is allowed */
> > > > +		return BTF_FIELD_IGNORE;
> > > > +	if (idx >= info_cnt)
> > >
> > > No need to pass info_cnt, idx into this function.
> > > Move idx >= info_cnt check into the caller and let
> > > caller do 'info++' and pass that.
> >
> > That was what I did initially, but this check actually needs to happen after we
> > see that the field is of interest (i.e. not ignored by btf_find_field_*). Doing
> > it in caller limits total fields to info_cnt. Moving those checks out into the
> > caller may be the other option, but I didn't like that. I can add a comment if
> > it makes things clear.
>
> don't increment info unconditionally?
> only when field is found.
>

Right now the j++ happens only when we find a field. What I'm saying is that if
you now move the idx (which is j in caller) >= info_cnt out into the loop, later
iteration will return error even if it is not a timer, spin_lock, or kptr field,
so actual check is done inside the function after we know that for this specific
case it can only be a timer, spin_lock, or kptr, and we already have no more room
to record their info.

e.g. there can be a case when we end up at j == info_cnt (all infos used), but
we still find a kptr, so we should only return error on seeing j == info_cnt
once we know that field is a kptr, because we reached the total limit of kptrs
in a map value.

> [...]

--
Kartikeya

Re: [PATCH bpf-next v2 03/15] bpf: Allow storing unreferenced kptr in map

[Kumar Kartikeya Dwivedi]

On Sun, Mar 20, 2022 at 03:09:20AM IST, Kumar Kartikeya Dwivedi wrote:
> On Sun, Mar 20, 2022 at 02:47:54AM IST, Alexei Starovoitov wrote:
> > On Sun, Mar 20, 2022 at 12:22:51AM +0530, Kumar Kartikeya Dwivedi wrote:
> > > On Sat, Mar 19, 2022 at 11:45:38PM IST, Alexei Starovoitov wrote:
> > > > On Thu, Mar 17, 2022 at 05:29:45PM +0530, Kumar Kartikeya Dwivedi wrote:
> > > > > This commit introduces a new pointer type 'kptr' which can be embedded
> > > > > in a map value as holds a PTR_TO_BTF_ID stored by a BPF program during
> > > > > its invocation. Storing to such a kptr, BPF program's PTR_TO_BTF_ID
> > > > > register must have the same type as in the map value's BTF, and loading
> > > > > a kptr marks the destination register as PTR_TO_BTF_ID with the correct
> > > > > kernel BTF and BTF ID.
> > > > >
> > > > > Such kptr are unreferenced, i.e. by the time another invocation of the
> > > > > BPF program loads this pointer, the object which the pointer points to
> > > > > may not longer exist. Since PTR_TO_BTF_ID loads (using BPF_LDX) are
> > > > > patched to PROBE_MEM loads by the verifier, it would safe to allow user
> > > > > to still access such invalid pointer, but passing such pointers into
> > > > > BPF helpers and kfuncs should not be permitted. A future patch in this
> > > > > series will close this gap.
> > > > >
> > > > > The flexibility offered by allowing programs to dereference such invalid
> > > > > pointers while being safe at runtime frees the verifier from doing
> > > > > complex lifetime tracking. As long as the user may ensure that the
> > > > > object remains valid, it can ensure data read by it from the kernel
> > > > > object is valid.
> > > > >
> > > > > The user indicates that a certain pointer must be treated as kptr
> > > > > capable of accepting stores of PTR_TO_BTF_ID of a certain type, by using
> > > > > a BTF type tag 'kptr' on the pointed to type of the pointer. Then, this
> > > > > information is recorded in the object BTF which will be passed into the
> > > > > kernel by way of map's BTF information. The name and kind from the map
> > > > > value BTF is used to look up the in-kernel type, and the actual BTF and
> > > > > BTF ID is recorded in the map struct in a new kptr_off_tab member. For
> > > > > now, only storing pointers to structs is permitted.
> > > > >
> > > > > An example of this specification is shown below:
> > > > >
> > > > > 	#define __kptr __attribute__((btf_type_tag("kptr")))
> > > > >
> > > > > 	struct map_value {
> > > > > 		...
> > > > > 		struct task_struct __kptr *task;
> > > > > 		...
> > > > > 	};
> > > > >
> > > > > Then, in a BPF program, user may store PTR_TO_BTF_ID with the type
> > > > > task_struct into the map, and then load it later.
> > > > >
> > > > > Note that the destination register is marked PTR_TO_BTF_ID_OR_NULL, as
> > > > > the verifier cannot know whether the value is NULL or not statically, it
> > > > > must treat all potential loads at that map value offset as loading a
> > > > > possibly NULL pointer.
> > > > >
> > > > > Only BPF_LDX, BPF_STX, and BPF_ST with insn->imm = 0 (to denote NULL)
> > > > > are allowed instructions that can access such a pointer. On BPF_LDX, the
> > > > > destination register is updated to be a PTR_TO_BTF_ID, and on BPF_STX,
> > > > > it is checked whether the source register type is a PTR_TO_BTF_ID with
> > > > > same BTF type as specified in the map BTF. The access size must always
> > > > > be BPF_DW.
> > > > >
> > > > > For the map in map support, the kptr_off_tab for outer map is copied
> > > > > from the inner map's kptr_off_tab. It was chosen to do a deep copy
> > > > > instead of introducing a refcount to kptr_off_tab, because the copy only
> > > > > needs to be done when paramterizing using inner_map_fd in the map in map
> > > > > case, hence would be unnecessary for all other users.
> > > > >
> > > > > It is not permitted to use MAP_FREEZE command and mmap for BPF map
> > > > > having kptr, similar to the bpf_timer case.
> > > > >
> > > > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > > > > ---
> > > > >  include/linux/bpf.h     |  29 +++++-
> > > > >  include/linux/btf.h     |   2 +
> > > > >  kernel/bpf/btf.c        | 151 +++++++++++++++++++++++++----
> > > > >  kernel/bpf/map_in_map.c |   5 +-
> > > > >  kernel/bpf/syscall.c    | 110 ++++++++++++++++++++-
> > > > >  kernel/bpf/verifier.c   | 207 ++++++++++++++++++++++++++++++++--------
> > > > >  6 files changed, 442 insertions(+), 62 deletions(-)
> > > > >
> > > > > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > > > > index 88449fbbe063..f35920d279dd 100644
> > > > > --- a/include/linux/bpf.h
> > > > > +++ b/include/linux/bpf.h
> > > > > @@ -155,6 +155,22 @@ struct bpf_map_ops {
> > > > >  	const struct bpf_iter_seq_info *iter_seq_info;
> > > > >  };
> > > > >
> > > > > +enum {
> > > > > +	/* Support at most 8 pointers in a BPF map value */
> > > > > +	BPF_MAP_VALUE_OFF_MAX = 8,
> > > > > +};
> > > > > +
> > > > > +struct bpf_map_value_off_desc {
> > > > > +	u32 offset;
> > > > > +	u32 btf_id;
> > > > > +	struct btf *btf;
> > > > > +};
> > > > > +
> > > > > +struct bpf_map_value_off {
> > > > > +	u32 nr_off;
> > > > > +	struct bpf_map_value_off_desc off[];
> > > > > +};
> > > > > +
> > > > >  struct bpf_map {
> > > > >  	/* The first two cachelines with read-mostly members of which some
> > > > >  	 * are also accessed in fast-path (e.g. ops, max_entries).
> > > > > @@ -171,6 +187,7 @@ struct bpf_map {
> > > > >  	u64 map_extra; /* any per-map-type extra fields */
> > > > >  	u32 map_flags;
> > > > >  	int spin_lock_off; /* >=0 valid offset, <0 error */
> > > > > +	struct bpf_map_value_off *kptr_off_tab;
> > > > >  	int timer_off; /* >=0 valid offset, <0 error */
> > > > >  	u32 id;
> > > > >  	int numa_node;
> > > > > @@ -184,7 +201,7 @@ struct bpf_map {
> > > > >  	char name[BPF_OBJ_NAME_LEN];
> > > > >  	bool bypass_spec_v1;
> > > > >  	bool frozen; /* write-once; write-protected by freeze_mutex */
> > > > > -	/* 14 bytes hole */
> > > > > +	/* 6 bytes hole */
> > > > >
> > > > >  	/* The 3rd and 4th cacheline with misc members to avoid false sharing
> > > > >  	 * particularly with refcounting.
> > > > > @@ -217,6 +234,11 @@ static inline bool map_value_has_timer(const struct bpf_map *map)
> > > > >  	return map->timer_off >= 0;
> > > > >  }
> > > > >
> > > > > +static inline bool map_value_has_kptr(const struct bpf_map *map)
> > > > > +{
> > > > > +	return !IS_ERR_OR_NULL(map->kptr_off_tab);
> > > > > +}
> > > > > +
> > > > >  static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
> > > > >  {
> > > > >  	if (unlikely(map_value_has_spin_lock(map)))
> > > > > @@ -1497,6 +1519,11 @@ void bpf_prog_put(struct bpf_prog *prog);
> > > > >  void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
> > > > >  void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
> > > > >
> > > > > +struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset);
> > > > > +void bpf_map_free_kptr_off_tab(struct bpf_map *map);
> > > > > +struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
> > > > > +bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
> > > > > +
> > > > >  struct bpf_map *bpf_map_get(u32 ufd);
> > > > >  struct bpf_map *bpf_map_get_with_uref(u32 ufd);
> > > > >  struct bpf_map *__bpf_map_get(struct fd f);
> > > > > diff --git a/include/linux/btf.h b/include/linux/btf.h
> > > > > index 36bc09b8e890..5b578dc81c04 100644
> > > > > --- a/include/linux/btf.h
> > > > > +++ b/include/linux/btf.h
> > > > > @@ -123,6 +123,8 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
> > > > >  			   u32 expected_offset, u32 expected_size);
> > > > >  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
> > > > >  int btf_find_timer(const struct btf *btf, const struct btf_type *t);
> > > > > +struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> > > > > +					const struct btf_type *t);
> > > > >  bool btf_type_is_void(const struct btf_type *t);
> > > > >  s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
> > > > >  const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
> > > > > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> > > > > index 5b2824332880..9ac9364ef533 100644
> > > > > --- a/kernel/bpf/btf.c
> > > > > +++ b/kernel/bpf/btf.c
> > > > > @@ -3164,33 +3164,79 @@ static void btf_struct_log(struct btf_verifier_env *env,
> > > > >  enum {
> > > > >  	BTF_FIELD_SPIN_LOCK,
> > > > >  	BTF_FIELD_TIMER,
> > > > > +	BTF_FIELD_KPTR,
> > > > > +};
> > > > > +
> > > > > +enum {
> > > > > +	BTF_FIELD_IGNORE = 0,
> > > > > +	BTF_FIELD_FOUND  = 1,
> > > > >  };
> > > > >
> > > > >  struct btf_field_info {
> > > > > +	const struct btf_type *type;
> > > > >  	u32 off;
> > > > >  };
> > > > >
> > > > >  static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> > > > > -				 u32 off, int sz, struct btf_field_info *info)
> > > > > +				 u32 off, int sz, struct btf_field_info *info,
> > > > > +				 int info_cnt, int idx)
> > > > >  {
> > > > >  	if (!__btf_type_is_struct(t))
> > > > > -		return 0;
> > > > > +		return BTF_FIELD_IGNORE;
> > > > >  	if (t->size != sz)
> > > > > -		return 0;
> > > > > -	if (info->off != -ENOENT)
> > > > > -		/* only one such field is allowed */
> > > > > +		return BTF_FIELD_IGNORE;
> > > > > +	if (idx >= info_cnt)
> > > >
> > > > No need to pass info_cnt, idx into this function.
> > > > Move idx >= info_cnt check into the caller and let
> > > > caller do 'info++' and pass that.
> > >
> > > That was what I did initially, but this check actually needs to happen after we
> > > see that the field is of interest (i.e. not ignored by btf_find_field_*). Doing
> > > it in caller limits total fields to info_cnt. Moving those checks out into the
> > > caller may be the other option, but I didn't like that. I can add a comment if
> > > it makes things clear.
> >
> > don't increment info unconditionally?
> > only when field is found.
> >
>
> Right now the j++ happens only when we find a field. What I'm saying is that if
> you now move the idx (which is j in caller) >= info_cnt out into the loop, later
> iteration will return error even if it is not a timer, spin_lock, or kptr field,
> so actual check is done inside the function after we know that for this specific
> case it can only be a timer, spin_lock, or kptr, and we already have no more room
> to record their info.
>
> e.g. there can be a case when we end up at j == info_cnt (all infos used), but
> we still find a kptr, so we should only return error on seeing j == info_cnt
> once we know that field is a kptr, because we reached the total limit of kptrs
> in a map value.
>

One other option might be doing the check in caller _after_ we see
BTF_FIELD_FOUND, but this would require bumping the size to max + 1, so that the
write to info inside the function doesn't write past the end of the array.

> > [...]
>
> --
> Kartikeya

--
Kartikeya

Re: [PATCH bpf-next v2 03/15] bpf: Allow storing unreferenced kptr in map

[Alexei Starovoitov]

On Sun, Mar 20, 2022 at 03:20:46AM +0530, Kumar Kartikeya Dwivedi wrote:
> On Sun, Mar 20, 2022 at 03:09:20AM IST, Kumar Kartikeya Dwivedi wrote:
> > On Sun, Mar 20, 2022 at 02:47:54AM IST, Alexei Starovoitov wrote:
> > > On Sun, Mar 20, 2022 at 12:22:51AM +0530, Kumar Kartikeya Dwivedi wrote:
> > > > On Sat, Mar 19, 2022 at 11:45:38PM IST, Alexei Starovoitov wrote:
> > > > > On Thu, Mar 17, 2022 at 05:29:45PM +0530, Kumar Kartikeya Dwivedi wrote:
> > > > > > This commit introduces a new pointer type 'kptr' which can be embedded
> > > > > > in a map value as holds a PTR_TO_BTF_ID stored by a BPF program during
> > > > > > its invocation. Storing to such a kptr, BPF program's PTR_TO_BTF_ID
> > > > > > register must have the same type as in the map value's BTF, and loading
> > > > > > a kptr marks the destination register as PTR_TO_BTF_ID with the correct
> > > > > > kernel BTF and BTF ID.
> > > > > >
> > > > > > Such kptr are unreferenced, i.e. by the time another invocation of the
> > > > > > BPF program loads this pointer, the object which the pointer points to
> > > > > > may not longer exist. Since PTR_TO_BTF_ID loads (using BPF_LDX) are
> > > > > > patched to PROBE_MEM loads by the verifier, it would safe to allow user
> > > > > > to still access such invalid pointer, but passing such pointers into
> > > > > > BPF helpers and kfuncs should not be permitted. A future patch in this
> > > > > > series will close this gap.
> > > > > >
> > > > > > The flexibility offered by allowing programs to dereference such invalid
> > > > > > pointers while being safe at runtime frees the verifier from doing
> > > > > > complex lifetime tracking. As long as the user may ensure that the
> > > > > > object remains valid, it can ensure data read by it from the kernel
> > > > > > object is valid.
> > > > > >
> > > > > > The user indicates that a certain pointer must be treated as kptr
> > > > > > capable of accepting stores of PTR_TO_BTF_ID of a certain type, by using
> > > > > > a BTF type tag 'kptr' on the pointed to type of the pointer. Then, this
> > > > > > information is recorded in the object BTF which will be passed into the
> > > > > > kernel by way of map's BTF information. The name and kind from the map
> > > > > > value BTF is used to look up the in-kernel type, and the actual BTF and
> > > > > > BTF ID is recorded in the map struct in a new kptr_off_tab member. For
> > > > > > now, only storing pointers to structs is permitted.
> > > > > >
> > > > > > An example of this specification is shown below:
> > > > > >
> > > > > > 	#define __kptr __attribute__((btf_type_tag("kptr")))
> > > > > >
> > > > > > 	struct map_value {
> > > > > > 		...
> > > > > > 		struct task_struct __kptr *task;
> > > > > > 		...
> > > > > > 	};
> > > > > >
> > > > > > Then, in a BPF program, user may store PTR_TO_BTF_ID with the type
> > > > > > task_struct into the map, and then load it later.
> > > > > >
> > > > > > Note that the destination register is marked PTR_TO_BTF_ID_OR_NULL, as
> > > > > > the verifier cannot know whether the value is NULL or not statically, it
> > > > > > must treat all potential loads at that map value offset as loading a
> > > > > > possibly NULL pointer.
> > > > > >
> > > > > > Only BPF_LDX, BPF_STX, and BPF_ST with insn->imm = 0 (to denote NULL)
> > > > > > are allowed instructions that can access such a pointer. On BPF_LDX, the
> > > > > > destination register is updated to be a PTR_TO_BTF_ID, and on BPF_STX,
> > > > > > it is checked whether the source register type is a PTR_TO_BTF_ID with
> > > > > > same BTF type as specified in the map BTF. The access size must always
> > > > > > be BPF_DW.
> > > > > >
> > > > > > For the map in map support, the kptr_off_tab for outer map is copied
> > > > > > from the inner map's kptr_off_tab. It was chosen to do a deep copy
> > > > > > instead of introducing a refcount to kptr_off_tab, because the copy only
> > > > > > needs to be done when paramterizing using inner_map_fd in the map in map
> > > > > > case, hence would be unnecessary for all other users.
> > > > > >
> > > > > > It is not permitted to use MAP_FREEZE command and mmap for BPF map
> > > > > > having kptr, similar to the bpf_timer case.
> > > > > >
> > > > > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > > > > > ---
> > > > > >  include/linux/bpf.h     |  29 +++++-
> > > > > >  include/linux/btf.h     |   2 +
> > > > > >  kernel/bpf/btf.c        | 151 +++++++++++++++++++++++++----
> > > > > >  kernel/bpf/map_in_map.c |   5 +-
> > > > > >  kernel/bpf/syscall.c    | 110 ++++++++++++++++++++-
> > > > > >  kernel/bpf/verifier.c   | 207 ++++++++++++++++++++++++++++++++--------
> > > > > >  6 files changed, 442 insertions(+), 62 deletions(-)
> > > > > >
> > > > > > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > > > > > index 88449fbbe063..f35920d279dd 100644
> > > > > > --- a/include/linux/bpf.h
> > > > > > +++ b/include/linux/bpf.h
> > > > > > @@ -155,6 +155,22 @@ struct bpf_map_ops {
> > > > > >  	const struct bpf_iter_seq_info *iter_seq_info;
> > > > > >  };
> > > > > >
> > > > > > +enum {
> > > > > > +	/* Support at most 8 pointers in a BPF map value */
> > > > > > +	BPF_MAP_VALUE_OFF_MAX = 8,
> > > > > > +};
> > > > > > +
> > > > > > +struct bpf_map_value_off_desc {
> > > > > > +	u32 offset;
> > > > > > +	u32 btf_id;
> > > > > > +	struct btf *btf;
> > > > > > +};
> > > > > > +
> > > > > > +struct bpf_map_value_off {
> > > > > > +	u32 nr_off;
> > > > > > +	struct bpf_map_value_off_desc off[];
> > > > > > +};
> > > > > > +
> > > > > >  struct bpf_map {
> > > > > >  	/* The first two cachelines with read-mostly members of which some
> > > > > >  	 * are also accessed in fast-path (e.g. ops, max_entries).
> > > > > > @@ -171,6 +187,7 @@ struct bpf_map {
> > > > > >  	u64 map_extra; /* any per-map-type extra fields */
> > > > > >  	u32 map_flags;
> > > > > >  	int spin_lock_off; /* >=0 valid offset, <0 error */
> > > > > > +	struct bpf_map_value_off *kptr_off_tab;
> > > > > >  	int timer_off; /* >=0 valid offset, <0 error */
> > > > > >  	u32 id;
> > > > > >  	int numa_node;
> > > > > > @@ -184,7 +201,7 @@ struct bpf_map {
> > > > > >  	char name[BPF_OBJ_NAME_LEN];
> > > > > >  	bool bypass_spec_v1;
> > > > > >  	bool frozen; /* write-once; write-protected by freeze_mutex */
> > > > > > -	/* 14 bytes hole */
> > > > > > +	/* 6 bytes hole */
> > > > > >
> > > > > >  	/* The 3rd and 4th cacheline with misc members to avoid false sharing
> > > > > >  	 * particularly with refcounting.
> > > > > > @@ -217,6 +234,11 @@ static inline bool map_value_has_timer(const struct bpf_map *map)
> > > > > >  	return map->timer_off >= 0;
> > > > > >  }
> > > > > >
> > > > > > +static inline bool map_value_has_kptr(const struct bpf_map *map)
> > > > > > +{
> > > > > > +	return !IS_ERR_OR_NULL(map->kptr_off_tab);
> > > > > > +}
> > > > > > +
> > > > > >  static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
> > > > > >  {
> > > > > >  	if (unlikely(map_value_has_spin_lock(map)))
> > > > > > @@ -1497,6 +1519,11 @@ void bpf_prog_put(struct bpf_prog *prog);
> > > > > >  void bpf_prog_free_id(struct bpf_prog *prog, bool do_idr_lock);
> > > > > >  void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock);
> > > > > >
> > > > > > +struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u32 offset);
> > > > > > +void bpf_map_free_kptr_off_tab(struct bpf_map *map);
> > > > > > +struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
> > > > > > +bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
> > > > > > +
> > > > > >  struct bpf_map *bpf_map_get(u32 ufd);
> > > > > >  struct bpf_map *bpf_map_get_with_uref(u32 ufd);
> > > > > >  struct bpf_map *__bpf_map_get(struct fd f);
> > > > > > diff --git a/include/linux/btf.h b/include/linux/btf.h
> > > > > > index 36bc09b8e890..5b578dc81c04 100644
> > > > > > --- a/include/linux/btf.h
> > > > > > +++ b/include/linux/btf.h
> > > > > > @@ -123,6 +123,8 @@ bool btf_member_is_reg_int(const struct btf *btf, const struct btf_type *s,
> > > > > >  			   u32 expected_offset, u32 expected_size);
> > > > > >  int btf_find_spin_lock(const struct btf *btf, const struct btf_type *t);
> > > > > >  int btf_find_timer(const struct btf *btf, const struct btf_type *t);
> > > > > > +struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> > > > > > +					const struct btf_type *t);
> > > > > >  bool btf_type_is_void(const struct btf_type *t);
> > > > > >  s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind);
> > > > > >  const struct btf_type *btf_type_skip_modifiers(const struct btf *btf,
> > > > > > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> > > > > > index 5b2824332880..9ac9364ef533 100644
> > > > > > --- a/kernel/bpf/btf.c
> > > > > > +++ b/kernel/bpf/btf.c
> > > > > > @@ -3164,33 +3164,79 @@ static void btf_struct_log(struct btf_verifier_env *env,
> > > > > >  enum {
> > > > > >  	BTF_FIELD_SPIN_LOCK,
> > > > > >  	BTF_FIELD_TIMER,
> > > > > > +	BTF_FIELD_KPTR,
> > > > > > +};
> > > > > > +
> > > > > > +enum {
> > > > > > +	BTF_FIELD_IGNORE = 0,
> > > > > > +	BTF_FIELD_FOUND  = 1,
> > > > > >  };
> > > > > >
> > > > > >  struct btf_field_info {
> > > > > > +	const struct btf_type *type;
> > > > > >  	u32 off;
> > > > > >  };
> > > > > >
> > > > > >  static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> > > > > > -				 u32 off, int sz, struct btf_field_info *info)
> > > > > > +				 u32 off, int sz, struct btf_field_info *info,
> > > > > > +				 int info_cnt, int idx)
> > > > > >  {
> > > > > >  	if (!__btf_type_is_struct(t))
> > > > > > -		return 0;
> > > > > > +		return BTF_FIELD_IGNORE;
> > > > > >  	if (t->size != sz)
> > > > > > -		return 0;
> > > > > > -	if (info->off != -ENOENT)
> > > > > > -		/* only one such field is allowed */
> > > > > > +		return BTF_FIELD_IGNORE;
> > > > > > +	if (idx >= info_cnt)
> > > > >
> > > > > No need to pass info_cnt, idx into this function.
> > > > > Move idx >= info_cnt check into the caller and let
> > > > > caller do 'info++' and pass that.
> > > >
> > > > That was what I did initially, but this check actually needs to happen after we
> > > > see that the field is of interest (i.e. not ignored by btf_find_field_*). Doing
> > > > it in caller limits total fields to info_cnt. Moving those checks out into the
> > > > caller may be the other option, but I didn't like that. I can add a comment if
> > > > it makes things clear.
> > >
> > > don't increment info unconditionally?
> > > only when field is found.
> > >
> >
> > Right now the j++ happens only when we find a field. What I'm saying is that if
> > you now move the idx (which is j in caller) >= info_cnt out into the loop, later
> > iteration will return error even if it is not a timer, spin_lock, or kptr field,
> > so actual check is done inside the function after we know that for this specific
> > case it can only be a timer, spin_lock, or kptr, and we already have no more room
> > to record their info.
> >
> > e.g. there can be a case when we end up at j == info_cnt (all infos used), but
> > we still find a kptr, so we should only return error on seeing j == info_cnt
> > once we know that field is a kptr, because we reached the total limit of kptrs
> > in a map value.
> >
> 
> One other option might be doing the check in caller _after_ we see
> BTF_FIELD_FOUND, but this would require bumping the size to max + 1, so that the
> write to info inside the function doesn't write past the end of the array.

yep. Extra element in the array will work.
Or split btf_find_field_struct() into find and populate.

[PATCH bpf-next v2 04/15] bpf: Allow storing referenced kptr in map

[Kumar Kartikeya Dwivedi]

Extending the code in previous commit, introduce referenced kptr
support, which needs to be tagged using 'kptr_ref' tag instead. Unlike
unreferenced kptr, referenced kptr have a lot more restrictions. In
addition to the type matching, only a newly introduced bpf_kptr_xchg
helper is allowed to modify the map value at that offset. This transfers
the referenced pointer being stored into the map, releasing the
references state for the program, and returning the old value and
creating new reference state for the returned pointer.

Similar to unreferenced pointer case, return value for this case will
also be PTR_TO_BTF_ID_OR_NULL. The reference for the returned pointer
must either be eventually released by calling the corresponding release
function, otherwise it must be transferred into another map.

It is also allowed to call bpf_kptr_xchg with a NULL pointer, to clear
the value, and obtain the old value if any.

BPF_LDX, BPF_STX, and BPF_ST cannot access referenced kptr. A future
commit will permit using BPF_LDX for such pointers, but attempt at
making it safe, since the lifetime of object won't be guaranteed.

There are valid reasons to enforce the restriction of permitting only
bpf_kptr_xchg to operate on referenced kptr. The pointer value must be
consistent in face of concurrent modification, and any prior values
contained in the map must also be released before a new one is moved
into the map. To ensure proper transfer of this ownership, bpf_kptr_xchg
returns the old value, which the verifier would require the user to
either free or move into another map, and releases the reference held
for the pointer being moved in.

In the future, direct BPF_XCHG instruction may also be permitted to work
like bpf_kptr_xchg helper.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h            |   7 ++
 include/uapi/linux/bpf.h       |  12 +++
 kernel/bpf/btf.c               |  20 +++-
 kernel/bpf/helpers.c           |  21 +++++
 kernel/bpf/verifier.c          | 167 +++++++++++++++++++++++++++++----
 tools/include/uapi/linux/bpf.h |  12 +++
 6 files changed, 219 insertions(+), 20 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index f35920d279dd..702aa882e4a3 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -160,10 +160,15 @@ enum {
 	BPF_MAP_VALUE_OFF_MAX = 8,
 };
 
+enum {
+	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
+};
+
 struct bpf_map_value_off_desc {
 	u32 offset;
 	u32 btf_id;
 	struct btf *btf;
+	int flags;
 };
 
 struct bpf_map_value_off {
@@ -413,6 +418,7 @@ enum bpf_arg_type {
 	ARG_PTR_TO_STACK,	/* pointer to stack */
 	ARG_PTR_TO_CONST_STR,	/* pointer to a null terminated read-only string */
 	ARG_PTR_TO_TIMER,	/* pointer to bpf_timer */
+	ARG_PTR_TO_KPTR,	/* pointer to kptr */
 	__BPF_ARG_TYPE_MAX,
 
 	/* Extended arg_types. */
@@ -422,6 +428,7 @@ enum bpf_arg_type {
 	ARG_PTR_TO_SOCKET_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_SOCKET,
 	ARG_PTR_TO_ALLOC_MEM_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_ALLOC_MEM,
 	ARG_PTR_TO_STACK_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_STACK,
+	ARG_PTR_TO_BTF_ID_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_BTF_ID,
 
 	/* This must be the last entry. Its purpose is to ensure the enum is
 	 * wide enough to hold the higher bits reserved for bpf_type_flag.
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 99fab54ae9c0..d45568746e79 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -5129,6 +5129,17 @@ union bpf_attr {
  *		The **hash_algo** is returned on success,
  *		**-EOPNOTSUP** if the hash calculation failed or **-EINVAL** if
  *		invalid arguments are passed.
+ *
+ * void *bpf_kptr_xchg(void *map_value, void *ptr)
+ *	Description
+ *		Exchange kptr at pointer *map_value* with *ptr*, and return the
+ *		old value. *ptr* can be NULL, otherwise it must be a referenced
+ *		pointer which will be released when this helper is called.
+ *	Return
+ *		The old value of kptr (which can be NULL). The returned pointer
+ *		if not NULL, is a reference which must be released using its
+ *		corresponding release function, or moved into a BPF map before
+ *		program exit.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -5325,6 +5336,7 @@ union bpf_attr {
 	FN(copy_from_user_task),	\
 	FN(skb_set_tstamp),		\
 	FN(ima_file_hash),		\
+	FN(kptr_xchg),			\
 	/* */
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 9ac9364ef533..7b4179667bf1 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3175,6 +3175,7 @@ enum {
 struct btf_field_info {
 	const struct btf_type *type;
 	u32 off;
+	int flags;
 };
 
 static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
@@ -3196,7 +3197,8 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 			       u32 off, int sz, struct btf_field_info *info,
 			       int info_cnt, int idx)
 {
-	bool kptr_tag = false;
+	bool kptr_tag = false, kptr_ref_tag = false;
+	int tags;
 
 	/* For PTR, sz is always == 8 */
 	if (!btf_type_is_ptr(t))
@@ -3209,12 +3211,21 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 			if (kptr_tag)
 				return -EEXIST;
 			kptr_tag = true;
+		} else if (!strcmp("kptr_ref", __btf_name_by_offset(btf, t->name_off))) {
+			/* repeated tag */
+			if (kptr_ref_tag)
+				return -EEXIST;
+			kptr_ref_tag = true;
 		}
 		/* Look for next tag */
 		t = btf_type_by_id(btf, t->type);
 	}
-	if (!kptr_tag)
+
+	tags = kptr_tag + kptr_ref_tag;
+	if (!tags)
 		return BTF_FIELD_IGNORE;
+	else if (tags > 1)
+		return -EINVAL;
 
 	/* Get the base type */
 	if (btf_type_is_modifier(t))
@@ -3225,6 +3236,10 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 
 	if (idx >= info_cnt)
 		return -E2BIG;
+	if (kptr_ref_tag)
+		info[idx].flags = BPF_MAP_VALUE_OFF_F_REF;
+	else
+		info[idx].flags = 0;
 	info[idx].type = t;
 	info[idx].off = off;
 	return BTF_FIELD_FOUND;
@@ -3402,6 +3417,7 @@ struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
 		tab->off[i].offset = info_arr[i].off;
 		tab->off[i].btf_id = id;
 		tab->off[i].btf = off_btf;
+		tab->off[i].flags = info_arr[i].flags;
 		tab->nr_off = i + 1;
 	}
 	return tab;
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 315053ef6a75..cb717bfbda19 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1374,6 +1374,25 @@ void bpf_timer_cancel_and_free(void *val)
 	kfree(t);
 }
 
+BPF_CALL_2(bpf_kptr_xchg, void *, map_value, void *, ptr)
+{
+	unsigned long *kptr = map_value;
+
+	return xchg(kptr, (unsigned long)ptr);
+}
+
+static u32 bpf_kptr_xchg_btf_id;
+
+const struct bpf_func_proto bpf_kptr_xchg_proto = {
+	.func        = bpf_kptr_xchg,
+	.gpl_only    = false,
+	.ret_type    = RET_PTR_TO_BTF_ID_OR_NULL,
+	.ret_btf_id  = &bpf_kptr_xchg_btf_id,
+	.arg1_type   = ARG_PTR_TO_KPTR,
+	.arg2_type   = ARG_PTR_TO_BTF_ID_OR_NULL,
+	.arg2_btf_id = &bpf_kptr_xchg_btf_id,
+};
+
 const struct bpf_func_proto bpf_get_current_task_proto __weak;
 const struct bpf_func_proto bpf_get_current_task_btf_proto __weak;
 const struct bpf_func_proto bpf_probe_read_user_proto __weak;
@@ -1452,6 +1471,8 @@ bpf_base_func_proto(enum bpf_func_id func_id)
 		return &bpf_timer_start_proto;
 	case BPF_FUNC_timer_cancel:
 		return &bpf_timer_cancel_proto;
+	case BPF_FUNC_kptr_xchg:
+		return &bpf_kptr_xchg_proto;
 	default:
 		break;
 	}
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 881d1381757b..f8738054aa52 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -257,6 +257,7 @@ struct bpf_call_arg_meta {
 	struct btf *ret_btf;
 	u32 ret_btf_id;
 	u32 subprogno;
+	struct bpf_map_value_off_desc *kptr_off_desc;
 };
 
 struct btf *btf_vmlinux;
@@ -479,7 +480,8 @@ static bool is_release_function(enum bpf_func_id func_id)
 {
 	return func_id == BPF_FUNC_sk_release ||
 	       func_id == BPF_FUNC_ringbuf_submit ||
-	       func_id == BPF_FUNC_ringbuf_discard;
+	       func_id == BPF_FUNC_ringbuf_discard ||
+	       func_id == BPF_FUNC_kptr_xchg;
 }
 
 static bool may_be_acquire_function(enum bpf_func_id func_id)
@@ -488,7 +490,8 @@ static bool may_be_acquire_function(enum bpf_func_id func_id)
 		func_id == BPF_FUNC_sk_lookup_udp ||
 		func_id == BPF_FUNC_skc_lookup_tcp ||
 		func_id == BPF_FUNC_map_lookup_elem ||
-	        func_id == BPF_FUNC_ringbuf_reserve;
+		func_id == BPF_FUNC_ringbuf_reserve ||
+		func_id == BPF_FUNC_kptr_xchg;
 }
 
 static bool is_acquire_function(enum bpf_func_id func_id,
@@ -499,7 +502,8 @@ static bool is_acquire_function(enum bpf_func_id func_id,
 	if (func_id == BPF_FUNC_sk_lookup_tcp ||
 	    func_id == BPF_FUNC_sk_lookup_udp ||
 	    func_id == BPF_FUNC_skc_lookup_tcp ||
-	    func_id == BPF_FUNC_ringbuf_reserve)
+	    func_id == BPF_FUNC_ringbuf_reserve ||
+	    func_id == BPF_FUNC_kptr_xchg)
 		return true;
 
 	if (func_id == BPF_FUNC_map_lookup_elem &&
@@ -3509,10 +3513,12 @@ int check_ptr_off_reg(struct bpf_verifier_env *env,
 
 static int map_kptr_match_type(struct bpf_verifier_env *env,
 			       struct bpf_map_value_off_desc *off_desc,
-			       struct bpf_reg_state *reg, u32 regno)
+			       struct bpf_reg_state *reg, u32 regno,
+			       bool ref_ptr)
 {
 	const char *targ_name = kernel_type_name(off_desc->btf, off_desc->btf_id);
 	const char *reg_name = "";
+	bool fixed_off_ok = true;
 
 	if (reg->type != PTR_TO_BTF_ID && reg->type != PTR_TO_BTF_ID_OR_NULL)
 		goto bad_type;
@@ -3524,7 +3530,26 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
 	/* We need to verify reg->type and reg->btf, before accessing reg->btf */
 	reg_name = kernel_type_name(reg->btf, reg->btf_id);
 
-	if (__check_ptr_off_reg(env, reg, regno, true))
+	if (ref_ptr) {
+		if (!reg->ref_obj_id) {
+			verbose(env, "R%d must be referenced %s%s\n", regno,
+				reg_type_str(env, PTR_TO_BTF_ID), targ_name);
+			return -EACCES;
+		}
+		/* reg->off can be used to store pointer to a certain type formed by
+		 * incrementing pointer of a parent structure the object is embedded in,
+		 * e.g. map may expect unreferenced struct path *, and user should be
+		 * allowed a store using &file->f_path. However, in the case of
+		 * referenced pointer, we cannot do this, because the reference is only
+		 * for the parent structure, not its embedded object(s), and because
+		 * the transfer of ownership happens for the original pointer to and
+		 * from the map (before its eventual release).
+		 */
+		if (reg->off)
+			fixed_off_ok = false;
+	}
+	/* var_off is rejected by __check_ptr_off_reg for PTR_TO_BTF_ID */
+	if (__check_ptr_off_reg(env, reg, regno, fixed_off_ok))
 		return -EACCES;
 
 	if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
@@ -3550,6 +3575,7 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 	struct bpf_map_value_off_desc *off_desc;
 	int insn_class = BPF_CLASS(insn->code);
 	struct bpf_map *map = reg->map_ptr;
+	bool ref_ptr = false;
 
 	/* Things we already checked for in check_map_access:
 	 *  - Reject cases where variable offset may touch BTF ID pointer
@@ -3574,9 +3600,15 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 		return -EPERM;
 	}
 
+	ref_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_REF;
+
 	if (insn_class == BPF_LDX) {
 		if (WARN_ON_ONCE(value_regno < 0))
 			return -EFAULT;
+		if (ref_ptr) {
+			verbose(env, "accessing referenced kptr disallowed\n");
+			return -EACCES;
+		}
 		val_reg = reg_state(env, value_regno);
 		/* We can simply mark the value_regno receiving the pointer
 		 * value from map as PTR_TO_BTF_ID, with the correct type.
@@ -3587,11 +3619,19 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 	} else if (insn_class == BPF_STX) {
 		if (WARN_ON_ONCE(value_regno < 0))
 			return -EFAULT;
+		if (ref_ptr) {
+			verbose(env, "accessing referenced kptr disallowed\n");
+			return -EACCES;
+		}
 		val_reg = reg_state(env, value_regno);
 		if (!register_is_null(val_reg) &&
-		    map_kptr_match_type(env, off_desc, val_reg, value_regno))
+		    map_kptr_match_type(env, off_desc, val_reg, value_regno, false))
 			return -EACCES;
 	} else if (insn_class == BPF_ST) {
+		if (ref_ptr) {
+			verbose(env, "accessing referenced kptr disallowed\n");
+			return -EACCES;
+		}
 		if (insn->imm) {
 			verbose(env, "BPF_ST imm must be 0 when storing to kptr at off=%u\n",
 				off_desc->offset);
@@ -5265,6 +5305,63 @@ static int process_timer_func(struct bpf_verifier_env *env, int regno,
 	return 0;
 }
 
+static int process_kptr_func(struct bpf_verifier_env *env, int regno,
+			     struct bpf_call_arg_meta *meta)
+{
+	struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[regno];
+	struct bpf_map_value_off_desc *off_desc;
+	struct bpf_map *map_ptr = reg->map_ptr;
+	u32 kptr_off;
+	int ret;
+
+	if (!env->bpf_capable) {
+		verbose(env, "kptr access only allowed for CAP_BPF and CAP_SYS_ADMIN\n");
+		return -EPERM;
+	}
+	if (!tnum_is_const(reg->var_off)) {
+		verbose(env,
+			"R%d doesn't have constant offset. kptr has to be at the constant offset\n",
+			regno);
+		return -EINVAL;
+	}
+	if (!map_ptr->btf) {
+		verbose(env, "map '%s' has to have BTF in order to use bpf_kptr_xchg\n",
+			map_ptr->name);
+		return -EINVAL;
+	}
+	if (!map_value_has_kptr(map_ptr)) {
+		ret = PTR_ERR(map_ptr->kptr_off_tab);
+		if (ret == -E2BIG)
+			verbose(env, "map '%s' has more than %d kptr\n", map_ptr->name,
+				BPF_MAP_VALUE_OFF_MAX);
+		else if (ret == -EEXIST)
+			verbose(env, "map '%s' has repeating kptr BTF tags\n", map_ptr->name);
+		else
+			verbose(env, "map '%s' has no valid kptr\n", map_ptr->name);
+		return -EINVAL;
+	}
+
+	meta->map_ptr = map_ptr;
+	/* Check access for BPF_WRITE */
+	meta->raw_mode = true;
+	ret = check_helper_mem_access(env, regno, sizeof(u64), false, meta);
+	if (ret < 0)
+		return ret;
+
+	kptr_off = reg->off + reg->var_off.value;
+	off_desc = bpf_map_kptr_off_contains(map_ptr, kptr_off);
+	if (!off_desc) {
+		verbose(env, "off=%d doesn't point to kptr\n", kptr_off);
+		return -EACCES;
+	}
+	if (!(off_desc->flags & BPF_MAP_VALUE_OFF_F_REF)) {
+		verbose(env, "off=%d kptr isn't referenced kptr\n", kptr_off);
+		return -EACCES;
+	}
+	meta->kptr_off_desc = off_desc;
+	return 0;
+}
+
 static bool arg_type_is_mem_ptr(enum bpf_arg_type type)
 {
 	return base_type(type) == ARG_PTR_TO_MEM ||
@@ -5400,6 +5497,7 @@ static const struct bpf_reg_types func_ptr_types = { .types = { PTR_TO_FUNC } };
 static const struct bpf_reg_types stack_ptr_types = { .types = { PTR_TO_STACK } };
 static const struct bpf_reg_types const_str_ptr_types = { .types = { PTR_TO_MAP_VALUE } };
 static const struct bpf_reg_types timer_types = { .types = { PTR_TO_MAP_VALUE } };
+static const struct bpf_reg_types kptr_types = { .types = { PTR_TO_MAP_VALUE } };
 
 static const struct bpf_reg_types *compatible_reg_types[__BPF_ARG_TYPE_MAX] = {
 	[ARG_PTR_TO_MAP_KEY]		= &map_key_value_types,
@@ -5427,11 +5525,13 @@ static const struct bpf_reg_types *compatible_reg_types[__BPF_ARG_TYPE_MAX] = {
 	[ARG_PTR_TO_STACK]		= &stack_ptr_types,
 	[ARG_PTR_TO_CONST_STR]		= &const_str_ptr_types,
 	[ARG_PTR_TO_TIMER]		= &timer_types,
+	[ARG_PTR_TO_KPTR]		= &kptr_types,
 };
 
 static int check_reg_type(struct bpf_verifier_env *env, u32 regno,
 			  enum bpf_arg_type arg_type,
-			  const u32 *arg_btf_id)
+			  const u32 *arg_btf_id,
+			  struct bpf_call_arg_meta *meta)
 {
 	struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[regno];
 	enum bpf_reg_type expected, type = reg->type;
@@ -5484,8 +5584,15 @@ static int check_reg_type(struct bpf_verifier_env *env, u32 regno,
 			arg_btf_id = compatible->btf_id;
 		}
 
-		if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
-					  btf_vmlinux, *arg_btf_id)) {
+		if (meta->func_id == BPF_FUNC_kptr_xchg) {
+			if (!meta->kptr_off_desc) {
+				verbose(env, "verifier internal error: meta.kptr_off_desc unset\n");
+				return -EFAULT;
+			}
+			if (map_kptr_match_type(env, meta->kptr_off_desc, reg, regno, true))
+				return -EACCES;
+		} else if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
+						 btf_vmlinux, *arg_btf_id)) {
 			verbose(env, "R%d is of type %s but %s is expected\n",
 				regno, kernel_type_name(reg->btf, reg->btf_id),
 				kernel_type_name(btf_vmlinux, *arg_btf_id));
@@ -5595,7 +5702,7 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
 		 */
 		goto skip_type_check;
 
-	err = check_reg_type(env, regno, arg_type, fn->arg_btf_id[arg]);
+	err = check_reg_type(env, regno, arg_type, fn->arg_btf_id[arg], meta);
 	if (err)
 		return err;
 
@@ -5760,6 +5867,14 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
 			verbose(env, "string is not zero-terminated\n");
 			return -EINVAL;
 		}
+	} else if (arg_type == ARG_PTR_TO_KPTR) {
+		if (meta->func_id == BPF_FUNC_kptr_xchg) {
+			if (process_kptr_func(env, regno, meta))
+				return -EACCES;
+		} else {
+			verbose(env, "verifier internal error\n");
+			return -EFAULT;
+		}
 	}
 
 	return err;
@@ -6102,10 +6217,10 @@ static bool check_btf_id_ok(const struct bpf_func_proto *fn)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(fn->arg_type); i++) {
-		if (fn->arg_type[i] == ARG_PTR_TO_BTF_ID && !fn->arg_btf_id[i])
+		if (base_type(fn->arg_type[i]) == ARG_PTR_TO_BTF_ID && !fn->arg_btf_id[i])
 			return false;
 
-		if (fn->arg_type[i] != ARG_PTR_TO_BTF_ID && fn->arg_btf_id[i])
+		if (base_type(fn->arg_type[i]) != ARG_PTR_TO_BTF_ID && fn->arg_btf_id[i])
 			return false;
 	}
 
@@ -6830,7 +6945,15 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
 	}
 
 	if (is_release_function(func_id)) {
-		err = release_reference(env, meta.ref_obj_id);
+		err = -EINVAL;
+		if (meta.ref_obj_id)
+			err = release_reference(env, meta.ref_obj_id);
+		/* Only bpf_kptr_xchg is a release function that accepts a
+		 * possibly NULL reg, hence meta.ref_obj_id can only be unset
+		 * for it.
+		 */
+		else if (func_id == BPF_FUNC_kptr_xchg)
+			err = 0;
 		if (err) {
 			verbose(env, "func %s#%d reference has not been acquired before\n",
 				func_id_name(func_id), func_id);
@@ -6963,21 +7086,29 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
 			regs[BPF_REG_0].btf_id = meta.ret_btf_id;
 		}
 	} else if (base_type(ret_type) == RET_PTR_TO_BTF_ID) {
+		struct btf *ret_btf;
 		int ret_btf_id;
 
 		mark_reg_known_zero(env, regs, BPF_REG_0);
 		regs[BPF_REG_0].type = PTR_TO_BTF_ID | ret_flag;
-		ret_btf_id = *fn->ret_btf_id;
+		if (func_id == BPF_FUNC_kptr_xchg) {
+			if (!meta.kptr_off_desc) {
+				verbose(env, "verifier internal error: meta.kptr_off_desc unset\n");
+				return -EFAULT;
+			}
+			ret_btf = meta.kptr_off_desc->btf;
+			ret_btf_id = meta.kptr_off_desc->btf_id;
+		} else {
+			ret_btf = btf_vmlinux;
+			ret_btf_id = *fn->ret_btf_id;
+		}
 		if (ret_btf_id == 0) {
 			verbose(env, "invalid return type %u of func %s#%d\n",
 				base_type(ret_type), func_id_name(func_id),
 				func_id);
 			return -EINVAL;
 		}
-		/* current BPF helper definitions are only coming from
-		 * built-in code with type IDs from  vmlinux BTF
-		 */
-		regs[BPF_REG_0].btf = btf_vmlinux;
+		regs[BPF_REG_0].btf = ret_btf;
 		regs[BPF_REG_0].btf_id = ret_btf_id;
 	} else {
 		verbose(env, "unknown return type %u of func %s#%d\n",
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 99fab54ae9c0..d45568746e79 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -5129,6 +5129,17 @@ union bpf_attr {
  *		The **hash_algo** is returned on success,
  *		**-EOPNOTSUP** if the hash calculation failed or **-EINVAL** if
  *		invalid arguments are passed.
+ *
+ * void *bpf_kptr_xchg(void *map_value, void *ptr)
+ *	Description
+ *		Exchange kptr at pointer *map_value* with *ptr*, and return the
+ *		old value. *ptr* can be NULL, otherwise it must be a referenced
+ *		pointer which will be released when this helper is called.
+ *	Return
+ *		The old value of kptr (which can be NULL). The returned pointer
+ *		if not NULL, is a reference which must be released using its
+ *		corresponding release function, or moved into a BPF map before
+ *		program exit.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -5325,6 +5336,7 @@ union bpf_attr {
 	FN(copy_from_user_task),	\
 	FN(skb_set_tstamp),		\
 	FN(ima_file_hash),		\
+	FN(kptr_xchg),			\
 	/* */
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
-- 
2.35.1

Re: [PATCH bpf-next v2 04/15] bpf: Allow storing referenced kptr in map

[Alexei Starovoitov]

On Thu, Mar 17, 2022 at 05:29:46PM +0530, Kumar Kartikeya Dwivedi wrote:
> Extending the code in previous commit, introduce referenced kptr
> support, which needs to be tagged using 'kptr_ref' tag instead. Unlike
> unreferenced kptr, referenced kptr have a lot more restrictions. In
> addition to the type matching, only a newly introduced bpf_kptr_xchg
> helper is allowed to modify the map value at that offset. This transfers
> the referenced pointer being stored into the map, releasing the
> references state for the program, and returning the old value and
> creating new reference state for the returned pointer.
> 
> Similar to unreferenced pointer case, return value for this case will
> also be PTR_TO_BTF_ID_OR_NULL. The reference for the returned pointer
> must either be eventually released by calling the corresponding release
> function, otherwise it must be transferred into another map.
> 
> It is also allowed to call bpf_kptr_xchg with a NULL pointer, to clear
> the value, and obtain the old value if any.
> 
> BPF_LDX, BPF_STX, and BPF_ST cannot access referenced kptr. A future
> commit will permit using BPF_LDX for such pointers, but attempt at
> making it safe, since the lifetime of object won't be guaranteed.
> 
> There are valid reasons to enforce the restriction of permitting only
> bpf_kptr_xchg to operate on referenced kptr. The pointer value must be
> consistent in face of concurrent modification, and any prior values
> contained in the map must also be released before a new one is moved
> into the map. To ensure proper transfer of this ownership, bpf_kptr_xchg
> returns the old value, which the verifier would require the user to
> either free or move into another map, and releases the reference held
> for the pointer being moved in.
> 
> In the future, direct BPF_XCHG instruction may also be permitted to work
> like bpf_kptr_xchg helper.
> 
> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> ---
>  include/linux/bpf.h            |   7 ++
>  include/uapi/linux/bpf.h       |  12 +++
>  kernel/bpf/btf.c               |  20 +++-
>  kernel/bpf/helpers.c           |  21 +++++
>  kernel/bpf/verifier.c          | 167 +++++++++++++++++++++++++++++----
>  tools/include/uapi/linux/bpf.h |  12 +++
>  6 files changed, 219 insertions(+), 20 deletions(-)
> 
> diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> index f35920d279dd..702aa882e4a3 100644
> --- a/include/linux/bpf.h
> +++ b/include/linux/bpf.h
> @@ -160,10 +160,15 @@ enum {
>  	BPF_MAP_VALUE_OFF_MAX = 8,
>  };
>  
> +enum {
> +	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
> +};
> +
>  struct bpf_map_value_off_desc {
>  	u32 offset;
>  	u32 btf_id;
>  	struct btf *btf;
> +	int flags;
>  };
>  
>  struct bpf_map_value_off {
> @@ -413,6 +418,7 @@ enum bpf_arg_type {
>  	ARG_PTR_TO_STACK,	/* pointer to stack */
>  	ARG_PTR_TO_CONST_STR,	/* pointer to a null terminated read-only string */
>  	ARG_PTR_TO_TIMER,	/* pointer to bpf_timer */
> +	ARG_PTR_TO_KPTR,	/* pointer to kptr */
>  	__BPF_ARG_TYPE_MAX,
>  
>  	/* Extended arg_types. */
> @@ -422,6 +428,7 @@ enum bpf_arg_type {
>  	ARG_PTR_TO_SOCKET_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_SOCKET,
>  	ARG_PTR_TO_ALLOC_MEM_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_ALLOC_MEM,
>  	ARG_PTR_TO_STACK_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_STACK,
> +	ARG_PTR_TO_BTF_ID_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_BTF_ID,
>  
>  	/* This must be the last entry. Its purpose is to ensure the enum is
>  	 * wide enough to hold the higher bits reserved for bpf_type_flag.
> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> index 99fab54ae9c0..d45568746e79 100644
> --- a/include/uapi/linux/bpf.h
> +++ b/include/uapi/linux/bpf.h
> @@ -5129,6 +5129,17 @@ union bpf_attr {
>   *		The **hash_algo** is returned on success,
>   *		**-EOPNOTSUP** if the hash calculation failed or **-EINVAL** if
>   *		invalid arguments are passed.
> + *
> + * void *bpf_kptr_xchg(void *map_value, void *ptr)
> + *	Description
> + *		Exchange kptr at pointer *map_value* with *ptr*, and return the
> + *		old value. *ptr* can be NULL, otherwise it must be a referenced
> + *		pointer which will be released when this helper is called.
> + *	Return
> + *		The old value of kptr (which can be NULL). The returned pointer
> + *		if not NULL, is a reference which must be released using its
> + *		corresponding release function, or moved into a BPF map before
> + *		program exit.
>   */
>  #define __BPF_FUNC_MAPPER(FN)		\
>  	FN(unspec),			\
> @@ -5325,6 +5336,7 @@ union bpf_attr {
>  	FN(copy_from_user_task),	\
>  	FN(skb_set_tstamp),		\
>  	FN(ima_file_hash),		\
> +	FN(kptr_xchg),			\
>  	/* */
>  
>  /* integer value in 'imm' field of BPF_CALL instruction selects which helper
> diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> index 9ac9364ef533..7b4179667bf1 100644
> --- a/kernel/bpf/btf.c
> +++ b/kernel/bpf/btf.c
> @@ -3175,6 +3175,7 @@ enum {
>  struct btf_field_info {
>  	const struct btf_type *type;
>  	u32 off;
> +	int flags;
>  };
>  
>  static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> @@ -3196,7 +3197,8 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
>  			       u32 off, int sz, struct btf_field_info *info,
>  			       int info_cnt, int idx)
>  {
> -	bool kptr_tag = false;
> +	bool kptr_tag = false, kptr_ref_tag = false;
> +	int tags;
>  
>  	/* For PTR, sz is always == 8 */
>  	if (!btf_type_is_ptr(t))
> @@ -3209,12 +3211,21 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
>  			if (kptr_tag)
>  				return -EEXIST;
>  			kptr_tag = true;
> +		} else if (!strcmp("kptr_ref", __btf_name_by_offset(btf, t->name_off))) {
> +			/* repeated tag */
> +			if (kptr_ref_tag)
> +				return -EEXIST;
> +			kptr_ref_tag = true;
>  		}
>  		/* Look for next tag */
>  		t = btf_type_by_id(btf, t->type);
>  	}
> -	if (!kptr_tag)
> +
> +	tags = kptr_tag + kptr_ref_tag;
> +	if (!tags)
>  		return BTF_FIELD_IGNORE;
> +	else if (tags > 1)
> +		return -EINVAL;
>  
>  	/* Get the base type */
>  	if (btf_type_is_modifier(t))
> @@ -3225,6 +3236,10 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
>  
>  	if (idx >= info_cnt)
>  		return -E2BIG;
> +	if (kptr_ref_tag)
> +		info[idx].flags = BPF_MAP_VALUE_OFF_F_REF;
> +	else
> +		info[idx].flags = 0;
>  	info[idx].type = t;
>  	info[idx].off = off;
>  	return BTF_FIELD_FOUND;
> @@ -3402,6 +3417,7 @@ struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
>  		tab->off[i].offset = info_arr[i].off;
>  		tab->off[i].btf_id = id;
>  		tab->off[i].btf = off_btf;
> +		tab->off[i].flags = info_arr[i].flags;
>  		tab->nr_off = i + 1;
>  	}
>  	return tab;
> diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
> index 315053ef6a75..cb717bfbda19 100644
> --- a/kernel/bpf/helpers.c
> +++ b/kernel/bpf/helpers.c
> @@ -1374,6 +1374,25 @@ void bpf_timer_cancel_and_free(void *val)
>  	kfree(t);
>  }
>  
> +BPF_CALL_2(bpf_kptr_xchg, void *, map_value, void *, ptr)
> +{
> +	unsigned long *kptr = map_value;
> +
> +	return xchg(kptr, (unsigned long)ptr);
> +}
> +
> +static u32 bpf_kptr_xchg_btf_id;
> +
> +const struct bpf_func_proto bpf_kptr_xchg_proto = {
> +	.func        = bpf_kptr_xchg,
> +	.gpl_only    = false,
> +	.ret_type    = RET_PTR_TO_BTF_ID_OR_NULL,
> +	.ret_btf_id  = &bpf_kptr_xchg_btf_id,
> +	.arg1_type   = ARG_PTR_TO_KPTR,
> +	.arg2_type   = ARG_PTR_TO_BTF_ID_OR_NULL,
> +	.arg2_btf_id = &bpf_kptr_xchg_btf_id,
> +};
> +
>  const struct bpf_func_proto bpf_get_current_task_proto __weak;
>  const struct bpf_func_proto bpf_get_current_task_btf_proto __weak;
>  const struct bpf_func_proto bpf_probe_read_user_proto __weak;
> @@ -1452,6 +1471,8 @@ bpf_base_func_proto(enum bpf_func_id func_id)
>  		return &bpf_timer_start_proto;
>  	case BPF_FUNC_timer_cancel:
>  		return &bpf_timer_cancel_proto;
> +	case BPF_FUNC_kptr_xchg:
> +		return &bpf_kptr_xchg_proto;
>  	default:
>  		break;
>  	}
> diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> index 881d1381757b..f8738054aa52 100644
> --- a/kernel/bpf/verifier.c
> +++ b/kernel/bpf/verifier.c
> @@ -257,6 +257,7 @@ struct bpf_call_arg_meta {
>  	struct btf *ret_btf;
>  	u32 ret_btf_id;
>  	u32 subprogno;
> +	struct bpf_map_value_off_desc *kptr_off_desc;
>  };
>  
>  struct btf *btf_vmlinux;
> @@ -479,7 +480,8 @@ static bool is_release_function(enum bpf_func_id func_id)
>  {
>  	return func_id == BPF_FUNC_sk_release ||
>  	       func_id == BPF_FUNC_ringbuf_submit ||
> -	       func_id == BPF_FUNC_ringbuf_discard;
> +	       func_id == BPF_FUNC_ringbuf_discard ||
> +	       func_id == BPF_FUNC_kptr_xchg;
>  }
>  
>  static bool may_be_acquire_function(enum bpf_func_id func_id)
> @@ -488,7 +490,8 @@ static bool may_be_acquire_function(enum bpf_func_id func_id)
>  		func_id == BPF_FUNC_sk_lookup_udp ||
>  		func_id == BPF_FUNC_skc_lookup_tcp ||
>  		func_id == BPF_FUNC_map_lookup_elem ||
> -	        func_id == BPF_FUNC_ringbuf_reserve;
> +		func_id == BPF_FUNC_ringbuf_reserve ||
> +		func_id == BPF_FUNC_kptr_xchg;
>  }
>  
>  static bool is_acquire_function(enum bpf_func_id func_id,
> @@ -499,7 +502,8 @@ static bool is_acquire_function(enum bpf_func_id func_id,
>  	if (func_id == BPF_FUNC_sk_lookup_tcp ||
>  	    func_id == BPF_FUNC_sk_lookup_udp ||
>  	    func_id == BPF_FUNC_skc_lookup_tcp ||
> -	    func_id == BPF_FUNC_ringbuf_reserve)
> +	    func_id == BPF_FUNC_ringbuf_reserve ||
> +	    func_id == BPF_FUNC_kptr_xchg)
>  		return true;
>  
>  	if (func_id == BPF_FUNC_map_lookup_elem &&
> @@ -3509,10 +3513,12 @@ int check_ptr_off_reg(struct bpf_verifier_env *env,
>  
>  static int map_kptr_match_type(struct bpf_verifier_env *env,
>  			       struct bpf_map_value_off_desc *off_desc,
> -			       struct bpf_reg_state *reg, u32 regno)
> +			       struct bpf_reg_state *reg, u32 regno,
> +			       bool ref_ptr)
>  {
>  	const char *targ_name = kernel_type_name(off_desc->btf, off_desc->btf_id);
>  	const char *reg_name = "";
> +	bool fixed_off_ok = true;
>  
>  	if (reg->type != PTR_TO_BTF_ID && reg->type != PTR_TO_BTF_ID_OR_NULL)
>  		goto bad_type;
> @@ -3524,7 +3530,26 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
>  	/* We need to verify reg->type and reg->btf, before accessing reg->btf */
>  	reg_name = kernel_type_name(reg->btf, reg->btf_id);
>  
> -	if (__check_ptr_off_reg(env, reg, regno, true))
> +	if (ref_ptr) {
> +		if (!reg->ref_obj_id) {
> +			verbose(env, "R%d must be referenced %s%s\n", regno,
> +				reg_type_str(env, PTR_TO_BTF_ID), targ_name);
> +			return -EACCES;
> +		}
> +		/* reg->off can be used to store pointer to a certain type formed by
> +		 * incrementing pointer of a parent structure the object is embedded in,
> +		 * e.g. map may expect unreferenced struct path *, and user should be
> +		 * allowed a store using &file->f_path. However, in the case of
> +		 * referenced pointer, we cannot do this, because the reference is only
> +		 * for the parent structure, not its embedded object(s), and because
> +		 * the transfer of ownership happens for the original pointer to and
> +		 * from the map (before its eventual release).
> +		 */
> +		if (reg->off)
> +			fixed_off_ok = false;
> +	}
> +	/* var_off is rejected by __check_ptr_off_reg for PTR_TO_BTF_ID */
> +	if (__check_ptr_off_reg(env, reg, regno, fixed_off_ok))
>  		return -EACCES;
>  
>  	if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
> @@ -3550,6 +3575,7 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
>  	struct bpf_map_value_off_desc *off_desc;
>  	int insn_class = BPF_CLASS(insn->code);
>  	struct bpf_map *map = reg->map_ptr;
> +	bool ref_ptr = false;
>  
>  	/* Things we already checked for in check_map_access:
>  	 *  - Reject cases where variable offset may touch BTF ID pointer
> @@ -3574,9 +3600,15 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
>  		return -EPERM;
>  	}
>  
> +	ref_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_REF;
> +
>  	if (insn_class == BPF_LDX) {
>  		if (WARN_ON_ONCE(value_regno < 0))
>  			return -EFAULT;
> +		if (ref_ptr) {
> +			verbose(env, "accessing referenced kptr disallowed\n");
> +			return -EACCES;
> +		}

Please do this warn once instead of copy paste 3 times.

>  		val_reg = reg_state(env, value_regno);
>  		/* We can simply mark the value_regno receiving the pointer
>  		 * value from map as PTR_TO_BTF_ID, with the correct type.
> @@ -3587,11 +3619,19 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
>  	} else if (insn_class == BPF_STX) {
>  		if (WARN_ON_ONCE(value_regno < 0))
>  			return -EFAULT;
> +		if (ref_ptr) {
> +			verbose(env, "accessing referenced kptr disallowed\n");
> +			return -EACCES;
> +		}
>  		val_reg = reg_state(env, value_regno);
>  		if (!register_is_null(val_reg) &&
> -		    map_kptr_match_type(env, off_desc, val_reg, value_regno))
> +		    map_kptr_match_type(env, off_desc, val_reg, value_regno, false))
>  			return -EACCES;
>  	} else if (insn_class == BPF_ST) {
> +		if (ref_ptr) {
> +			verbose(env, "accessing referenced kptr disallowed\n");
> +			return -EACCES;
> +		}
>  		if (insn->imm) {
>  			verbose(env, "BPF_ST imm must be 0 when storing to kptr at off=%u\n",
>  				off_desc->offset);
> @@ -5265,6 +5305,63 @@ static int process_timer_func(struct bpf_verifier_env *env, int regno,
>  	return 0;
>  }
>  
> +static int process_kptr_func(struct bpf_verifier_env *env, int regno,
> +			     struct bpf_call_arg_meta *meta)
> +{
> +	struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[regno];
> +	struct bpf_map_value_off_desc *off_desc;
> +	struct bpf_map *map_ptr = reg->map_ptr;
> +	u32 kptr_off;
> +	int ret;
> +
> +	if (!env->bpf_capable) {
> +		verbose(env, "kptr access only allowed for CAP_BPF and CAP_SYS_ADMIN\n");
> +		return -EPERM;
> +	}

another check? pls drop.

> +	if (!tnum_is_const(reg->var_off)) {
> +		verbose(env,
> +			"R%d doesn't have constant offset. kptr has to be at the constant offset\n",
> +			regno);
> +		return -EINVAL;
> +	}
> +	if (!map_ptr->btf) {
> +		verbose(env, "map '%s' has to have BTF in order to use bpf_kptr_xchg\n",
> +			map_ptr->name);
> +		return -EINVAL;
> +	}
> +	if (!map_value_has_kptr(map_ptr)) {
> +		ret = PTR_ERR(map_ptr->kptr_off_tab);
> +		if (ret == -E2BIG)
> +			verbose(env, "map '%s' has more than %d kptr\n", map_ptr->name,
> +				BPF_MAP_VALUE_OFF_MAX);
> +		else if (ret == -EEXIST)
> +			verbose(env, "map '%s' has repeating kptr BTF tags\n", map_ptr->name);
> +		else
> +			verbose(env, "map '%s' has no valid kptr\n", map_ptr->name);
> +		return -EINVAL;
> +	}
> +
> +	meta->map_ptr = map_ptr;
> +	/* Check access for BPF_WRITE */
> +	meta->raw_mode = true;
> +	ret = check_helper_mem_access(env, regno, sizeof(u64), false, meta);
> +	if (ret < 0)
> +		return ret;
> +
> +	kptr_off = reg->off + reg->var_off.value;
> +	off_desc = bpf_map_kptr_off_contains(map_ptr, kptr_off);
> +	if (!off_desc) {
> +		verbose(env, "off=%d doesn't point to kptr\n", kptr_off);
> +		return -EACCES;
> +	}
> +	if (!(off_desc->flags & BPF_MAP_VALUE_OFF_F_REF)) {
> +		verbose(env, "off=%d kptr isn't referenced kptr\n", kptr_off);
> +		return -EACCES;
> +	}
> +	meta->kptr_off_desc = off_desc;
> +	return 0;
> +}
> +
>  static bool arg_type_is_mem_ptr(enum bpf_arg_type type)
>  {
>  	return base_type(type) == ARG_PTR_TO_MEM ||
> @@ -5400,6 +5497,7 @@ static const struct bpf_reg_types func_ptr_types = { .types = { PTR_TO_FUNC } };
>  static const struct bpf_reg_types stack_ptr_types = { .types = { PTR_TO_STACK } };
>  static const struct bpf_reg_types const_str_ptr_types = { .types = { PTR_TO_MAP_VALUE } };
>  static const struct bpf_reg_types timer_types = { .types = { PTR_TO_MAP_VALUE } };
> +static const struct bpf_reg_types kptr_types = { .types = { PTR_TO_MAP_VALUE } };
>  
>  static const struct bpf_reg_types *compatible_reg_types[__BPF_ARG_TYPE_MAX] = {
>  	[ARG_PTR_TO_MAP_KEY]		= &map_key_value_types,
> @@ -5427,11 +5525,13 @@ static const struct bpf_reg_types *compatible_reg_types[__BPF_ARG_TYPE_MAX] = {
>  	[ARG_PTR_TO_STACK]		= &stack_ptr_types,
>  	[ARG_PTR_TO_CONST_STR]		= &const_str_ptr_types,
>  	[ARG_PTR_TO_TIMER]		= &timer_types,
> +	[ARG_PTR_TO_KPTR]		= &kptr_types,
>  };
>  
>  static int check_reg_type(struct bpf_verifier_env *env, u32 regno,
>  			  enum bpf_arg_type arg_type,
> -			  const u32 *arg_btf_id)
> +			  const u32 *arg_btf_id,
> +			  struct bpf_call_arg_meta *meta)
>  {
>  	struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[regno];
>  	enum bpf_reg_type expected, type = reg->type;
> @@ -5484,8 +5584,15 @@ static int check_reg_type(struct bpf_verifier_env *env, u32 regno,
>  			arg_btf_id = compatible->btf_id;
>  		}
>  
> -		if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
> -					  btf_vmlinux, *arg_btf_id)) {
> +		if (meta->func_id == BPF_FUNC_kptr_xchg) {
> +			if (!meta->kptr_off_desc) {
> +				verbose(env, "verifier internal error: meta.kptr_off_desc unset\n");
> +				return -EFAULT;
> +			}

please audit all patches and remove all instances of defensive programming.

> +			if (map_kptr_match_type(env, meta->kptr_off_desc, reg, regno, true))
> +				return -EACCES;
> +		} else if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
> +						 btf_vmlinux, *arg_btf_id)) {
>  			verbose(env, "R%d is of type %s but %s is expected\n",
>  				regno, kernel_type_name(reg->btf, reg->btf_id),
>  				kernel_type_name(btf_vmlinux, *arg_btf_id));
> @@ -5595,7 +5702,7 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
>  		 */
>  		goto skip_type_check;
>  
> -	err = check_reg_type(env, regno, arg_type, fn->arg_btf_id[arg]);
> +	err = check_reg_type(env, regno, arg_type, fn->arg_btf_id[arg], meta);
>  	if (err)
>  		return err;
>  
> @@ -5760,6 +5867,14 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
>  			verbose(env, "string is not zero-terminated\n");
>  			return -EINVAL;
>  		}
> +	} else if (arg_type == ARG_PTR_TO_KPTR) {
> +		if (meta->func_id == BPF_FUNC_kptr_xchg) {
> +			if (process_kptr_func(env, regno, meta))
> +				return -EACCES;
> +		} else {
> +			verbose(env, "verifier internal error\n");
> +			return -EFAULT;

remove.

> +		}
>  	}
>  
>  	return err;
> @@ -6102,10 +6217,10 @@ static bool check_btf_id_ok(const struct bpf_func_proto *fn)
>  	int i;
>  
>  	for (i = 0; i < ARRAY_SIZE(fn->arg_type); i++) {
> -		if (fn->arg_type[i] == ARG_PTR_TO_BTF_ID && !fn->arg_btf_id[i])
> +		if (base_type(fn->arg_type[i]) == ARG_PTR_TO_BTF_ID && !fn->arg_btf_id[i])
>  			return false;
>  
> -		if (fn->arg_type[i] != ARG_PTR_TO_BTF_ID && fn->arg_btf_id[i])
> +		if (base_type(fn->arg_type[i]) != ARG_PTR_TO_BTF_ID && fn->arg_btf_id[i])
>  			return false;
>  	}
>  
> @@ -6830,7 +6945,15 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
>  	}
>  
>  	if (is_release_function(func_id)) {
> -		err = release_reference(env, meta.ref_obj_id);
> +		err = -EINVAL;
> +		if (meta.ref_obj_id)
> +			err = release_reference(env, meta.ref_obj_id);
> +		/* Only bpf_kptr_xchg is a release function that accepts a
> +		 * possibly NULL reg, hence meta.ref_obj_id can only be unset
> +		 * for it.

Could you rephrase the comment? I'm not following what it's trying to convey.

> +		 */
> +		else if (func_id == BPF_FUNC_kptr_xchg)
> +			err = 0;
>  		if (err) {
>  			verbose(env, "func %s#%d reference has not been acquired before\n",
>  				func_id_name(func_id), func_id);
> @@ -6963,21 +7086,29 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
>  			regs[BPF_REG_0].btf_id = meta.ret_btf_id;
>  		}
>  	} else if (base_type(ret_type) == RET_PTR_TO_BTF_ID) {
> +		struct btf *ret_btf;
>  		int ret_btf_id;
>  
>  		mark_reg_known_zero(env, regs, BPF_REG_0);
>  		regs[BPF_REG_0].type = PTR_TO_BTF_ID | ret_flag;
> -		ret_btf_id = *fn->ret_btf_id;
> +		if (func_id == BPF_FUNC_kptr_xchg) {
> +			if (!meta.kptr_off_desc) {
> +				verbose(env, "verifier internal error: meta.kptr_off_desc unset\n");
> +				return -EFAULT;

remove.

> +			}
> +			ret_btf = meta.kptr_off_desc->btf;
> +			ret_btf_id = meta.kptr_off_desc->btf_id;
> +		} else {
> +			ret_btf = btf_vmlinux;
> +			ret_btf_id = *fn->ret_btf_id;
> +		}
>  		if (ret_btf_id == 0) {
>  			verbose(env, "invalid return type %u of func %s#%d\n",
>  				base_type(ret_type), func_id_name(func_id),
>  				func_id);
>  			return -EINVAL;
>  		}
> -		/* current BPF helper definitions are only coming from
> -		 * built-in code with type IDs from  vmlinux BTF
> -		 */
> -		regs[BPF_REG_0].btf = btf_vmlinux;
> +		regs[BPF_REG_0].btf = ret_btf;
>  		regs[BPF_REG_0].btf_id = ret_btf_id;
>  	} else {
>  		verbose(env, "unknown return type %u of func %s#%d\n",
> diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
> index 99fab54ae9c0..d45568746e79 100644
> --- a/tools/include/uapi/linux/bpf.h
> +++ b/tools/include/uapi/linux/bpf.h
> @@ -5129,6 +5129,17 @@ union bpf_attr {
>   *		The **hash_algo** is returned on success,
>   *		**-EOPNOTSUP** if the hash calculation failed or **-EINVAL** if
>   *		invalid arguments are passed.
> + *
> + * void *bpf_kptr_xchg(void *map_value, void *ptr)
> + *	Description
> + *		Exchange kptr at pointer *map_value* with *ptr*, and return the
> + *		old value. *ptr* can be NULL, otherwise it must be a referenced
> + *		pointer which will be released when this helper is called.
> + *	Return
> + *		The old value of kptr (which can be NULL). The returned pointer
> + *		if not NULL, is a reference which must be released using its
> + *		corresponding release function, or moved into a BPF map before
> + *		program exit.
>   */
>  #define __BPF_FUNC_MAPPER(FN)		\
>  	FN(unspec),			\
> @@ -5325,6 +5336,7 @@ union bpf_attr {
>  	FN(copy_from_user_task),	\
>  	FN(skb_set_tstamp),		\
>  	FN(ima_file_hash),		\
> +	FN(kptr_xchg),			\
>  	/* */
>  
>  /* integer value in 'imm' field of BPF_CALL instruction selects which helper
> -- 
> 2.35.1
> 

-- 

Re: [PATCH bpf-next v2 04/15] bpf: Allow storing referenced kptr in map

[Kumar Kartikeya Dwivedi]

On Sat, Mar 19, 2022 at 11:54:07PM IST, Alexei Starovoitov wrote:
> On Thu, Mar 17, 2022 at 05:29:46PM +0530, Kumar Kartikeya Dwivedi wrote:
> > Extending the code in previous commit, introduce referenced kptr
> > support, which needs to be tagged using 'kptr_ref' tag instead. Unlike
> > unreferenced kptr, referenced kptr have a lot more restrictions. In
> > addition to the type matching, only a newly introduced bpf_kptr_xchg
> > helper is allowed to modify the map value at that offset. This transfers
> > the referenced pointer being stored into the map, releasing the
> > references state for the program, and returning the old value and
> > creating new reference state for the returned pointer.
> >
> > Similar to unreferenced pointer case, return value for this case will
> > also be PTR_TO_BTF_ID_OR_NULL. The reference for the returned pointer
> > must either be eventually released by calling the corresponding release
> > function, otherwise it must be transferred into another map.
> >
> > It is also allowed to call bpf_kptr_xchg with a NULL pointer, to clear
> > the value, and obtain the old value if any.
> >
> > BPF_LDX, BPF_STX, and BPF_ST cannot access referenced kptr. A future
> > commit will permit using BPF_LDX for such pointers, but attempt at
> > making it safe, since the lifetime of object won't be guaranteed.
> >
> > There are valid reasons to enforce the restriction of permitting only
> > bpf_kptr_xchg to operate on referenced kptr. The pointer value must be
> > consistent in face of concurrent modification, and any prior values
> > contained in the map must also be released before a new one is moved
> > into the map. To ensure proper transfer of this ownership, bpf_kptr_xchg
> > returns the old value, which the verifier would require the user to
> > either free or move into another map, and releases the reference held
> > for the pointer being moved in.
> >
> > In the future, direct BPF_XCHG instruction may also be permitted to work
> > like bpf_kptr_xchg helper.
> >
> > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > ---
> >  include/linux/bpf.h            |   7 ++
> >  include/uapi/linux/bpf.h       |  12 +++
> >  kernel/bpf/btf.c               |  20 +++-
> >  kernel/bpf/helpers.c           |  21 +++++
> >  kernel/bpf/verifier.c          | 167 +++++++++++++++++++++++++++++----
> >  tools/include/uapi/linux/bpf.h |  12 +++
> >  6 files changed, 219 insertions(+), 20 deletions(-)
> >
> > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > index f35920d279dd..702aa882e4a3 100644
> > --- a/include/linux/bpf.h
> > +++ b/include/linux/bpf.h
> > @@ -160,10 +160,15 @@ enum {
> >  	BPF_MAP_VALUE_OFF_MAX = 8,
> >  };
> >
> > +enum {
> > +	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
> > +};
> > +
> >  struct bpf_map_value_off_desc {
> >  	u32 offset;
> >  	u32 btf_id;
> >  	struct btf *btf;
> > +	int flags;
> >  };
> >
> >  struct bpf_map_value_off {
> > @@ -413,6 +418,7 @@ enum bpf_arg_type {
> >  	ARG_PTR_TO_STACK,	/* pointer to stack */
> >  	ARG_PTR_TO_CONST_STR,	/* pointer to a null terminated read-only string */
> >  	ARG_PTR_TO_TIMER,	/* pointer to bpf_timer */
> > +	ARG_PTR_TO_KPTR,	/* pointer to kptr */
> >  	__BPF_ARG_TYPE_MAX,
> >
> >  	/* Extended arg_types. */
> > @@ -422,6 +428,7 @@ enum bpf_arg_type {
> >  	ARG_PTR_TO_SOCKET_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_SOCKET,
> >  	ARG_PTR_TO_ALLOC_MEM_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_ALLOC_MEM,
> >  	ARG_PTR_TO_STACK_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_STACK,
> > +	ARG_PTR_TO_BTF_ID_OR_NULL	= PTR_MAYBE_NULL | ARG_PTR_TO_BTF_ID,
> >
> >  	/* This must be the last entry. Its purpose is to ensure the enum is
> >  	 * wide enough to hold the higher bits reserved for bpf_type_flag.
> > diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> > index 99fab54ae9c0..d45568746e79 100644
> > --- a/include/uapi/linux/bpf.h
> > +++ b/include/uapi/linux/bpf.h
> > @@ -5129,6 +5129,17 @@ union bpf_attr {
> >   *		The **hash_algo** is returned on success,
> >   *		**-EOPNOTSUP** if the hash calculation failed or **-EINVAL** if
> >   *		invalid arguments are passed.
> > + *
> > + * void *bpf_kptr_xchg(void *map_value, void *ptr)
> > + *	Description
> > + *		Exchange kptr at pointer *map_value* with *ptr*, and return the
> > + *		old value. *ptr* can be NULL, otherwise it must be a referenced
> > + *		pointer which will be released when this helper is called.
> > + *	Return
> > + *		The old value of kptr (which can be NULL). The returned pointer
> > + *		if not NULL, is a reference which must be released using its
> > + *		corresponding release function, or moved into a BPF map before
> > + *		program exit.
> >   */
> >  #define __BPF_FUNC_MAPPER(FN)		\
> >  	FN(unspec),			\
> > @@ -5325,6 +5336,7 @@ union bpf_attr {
> >  	FN(copy_from_user_task),	\
> >  	FN(skb_set_tstamp),		\
> >  	FN(ima_file_hash),		\
> > +	FN(kptr_xchg),			\
> >  	/* */
> >
> >  /* integer value in 'imm' field of BPF_CALL instruction selects which helper
> > diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> > index 9ac9364ef533..7b4179667bf1 100644
> > --- a/kernel/bpf/btf.c
> > +++ b/kernel/bpf/btf.c
> > @@ -3175,6 +3175,7 @@ enum {
> >  struct btf_field_info {
> >  	const struct btf_type *type;
> >  	u32 off;
> > +	int flags;
> >  };
> >
> >  static int btf_find_field_struct(const struct btf *btf, const struct btf_type *t,
> > @@ -3196,7 +3197,8 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
> >  			       u32 off, int sz, struct btf_field_info *info,
> >  			       int info_cnt, int idx)
> >  {
> > -	bool kptr_tag = false;
> > +	bool kptr_tag = false, kptr_ref_tag = false;
> > +	int tags;
> >
> >  	/* For PTR, sz is always == 8 */
> >  	if (!btf_type_is_ptr(t))
> > @@ -3209,12 +3211,21 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
> >  			if (kptr_tag)
> >  				return -EEXIST;
> >  			kptr_tag = true;
> > +		} else if (!strcmp("kptr_ref", __btf_name_by_offset(btf, t->name_off))) {
> > +			/* repeated tag */
> > +			if (kptr_ref_tag)
> > +				return -EEXIST;
> > +			kptr_ref_tag = true;
> >  		}
> >  		/* Look for next tag */
> >  		t = btf_type_by_id(btf, t->type);
> >  	}
> > -	if (!kptr_tag)
> > +
> > +	tags = kptr_tag + kptr_ref_tag;
> > +	if (!tags)
> >  		return BTF_FIELD_IGNORE;
> > +	else if (tags > 1)
> > +		return -EINVAL;
> >
> >  	/* Get the base type */
> >  	if (btf_type_is_modifier(t))
> > @@ -3225,6 +3236,10 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
> >
> >  	if (idx >= info_cnt)
> >  		return -E2BIG;
> > +	if (kptr_ref_tag)
> > +		info[idx].flags = BPF_MAP_VALUE_OFF_F_REF;
> > +	else
> > +		info[idx].flags = 0;
> >  	info[idx].type = t;
> >  	info[idx].off = off;
> >  	return BTF_FIELD_FOUND;
> > @@ -3402,6 +3417,7 @@ struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
> >  		tab->off[i].offset = info_arr[i].off;
> >  		tab->off[i].btf_id = id;
> >  		tab->off[i].btf = off_btf;
> > +		tab->off[i].flags = info_arr[i].flags;
> >  		tab->nr_off = i + 1;
> >  	}
> >  	return tab;
> > diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
> > index 315053ef6a75..cb717bfbda19 100644
> > --- a/kernel/bpf/helpers.c
> > +++ b/kernel/bpf/helpers.c
> > @@ -1374,6 +1374,25 @@ void bpf_timer_cancel_and_free(void *val)
> >  	kfree(t);
> >  }
> >
> > +BPF_CALL_2(bpf_kptr_xchg, void *, map_value, void *, ptr)
> > +{
> > +	unsigned long *kptr = map_value;
> > +
> > +	return xchg(kptr, (unsigned long)ptr);
> > +}
> > +
> > +static u32 bpf_kptr_xchg_btf_id;
> > +
> > +const struct bpf_func_proto bpf_kptr_xchg_proto = {
> > +	.func        = bpf_kptr_xchg,
> > +	.gpl_only    = false,
> > +	.ret_type    = RET_PTR_TO_BTF_ID_OR_NULL,
> > +	.ret_btf_id  = &bpf_kptr_xchg_btf_id,
> > +	.arg1_type   = ARG_PTR_TO_KPTR,
> > +	.arg2_type   = ARG_PTR_TO_BTF_ID_OR_NULL,
> > +	.arg2_btf_id = &bpf_kptr_xchg_btf_id,
> > +};
> > +
> >  const struct bpf_func_proto bpf_get_current_task_proto __weak;
> >  const struct bpf_func_proto bpf_get_current_task_btf_proto __weak;
> >  const struct bpf_func_proto bpf_probe_read_user_proto __weak;
> > @@ -1452,6 +1471,8 @@ bpf_base_func_proto(enum bpf_func_id func_id)
> >  		return &bpf_timer_start_proto;
> >  	case BPF_FUNC_timer_cancel:
> >  		return &bpf_timer_cancel_proto;
> > +	case BPF_FUNC_kptr_xchg:
> > +		return &bpf_kptr_xchg_proto;
> >  	default:
> >  		break;
> >  	}
> > diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> > index 881d1381757b..f8738054aa52 100644
> > --- a/kernel/bpf/verifier.c
> > +++ b/kernel/bpf/verifier.c
> > @@ -257,6 +257,7 @@ struct bpf_call_arg_meta {
> >  	struct btf *ret_btf;
> >  	u32 ret_btf_id;
> >  	u32 subprogno;
> > +	struct bpf_map_value_off_desc *kptr_off_desc;
> >  };
> >
> >  struct btf *btf_vmlinux;
> > @@ -479,7 +480,8 @@ static bool is_release_function(enum bpf_func_id func_id)
> >  {
> >  	return func_id == BPF_FUNC_sk_release ||
> >  	       func_id == BPF_FUNC_ringbuf_submit ||
> > -	       func_id == BPF_FUNC_ringbuf_discard;
> > +	       func_id == BPF_FUNC_ringbuf_discard ||
> > +	       func_id == BPF_FUNC_kptr_xchg;
> >  }
> >
> >  static bool may_be_acquire_function(enum bpf_func_id func_id)
> > @@ -488,7 +490,8 @@ static bool may_be_acquire_function(enum bpf_func_id func_id)
> >  		func_id == BPF_FUNC_sk_lookup_udp ||
> >  		func_id == BPF_FUNC_skc_lookup_tcp ||
> >  		func_id == BPF_FUNC_map_lookup_elem ||
> > -	        func_id == BPF_FUNC_ringbuf_reserve;
> > +		func_id == BPF_FUNC_ringbuf_reserve ||
> > +		func_id == BPF_FUNC_kptr_xchg;
> >  }
> >
> >  static bool is_acquire_function(enum bpf_func_id func_id,
> > @@ -499,7 +502,8 @@ static bool is_acquire_function(enum bpf_func_id func_id,
> >  	if (func_id == BPF_FUNC_sk_lookup_tcp ||
> >  	    func_id == BPF_FUNC_sk_lookup_udp ||
> >  	    func_id == BPF_FUNC_skc_lookup_tcp ||
> > -	    func_id == BPF_FUNC_ringbuf_reserve)
> > +	    func_id == BPF_FUNC_ringbuf_reserve ||
> > +	    func_id == BPF_FUNC_kptr_xchg)
> >  		return true;
> >
> >  	if (func_id == BPF_FUNC_map_lookup_elem &&
> > @@ -3509,10 +3513,12 @@ int check_ptr_off_reg(struct bpf_verifier_env *env,
> >
> >  static int map_kptr_match_type(struct bpf_verifier_env *env,
> >  			       struct bpf_map_value_off_desc *off_desc,
> > -			       struct bpf_reg_state *reg, u32 regno)
> > +			       struct bpf_reg_state *reg, u32 regno,
> > +			       bool ref_ptr)
> >  {
> >  	const char *targ_name = kernel_type_name(off_desc->btf, off_desc->btf_id);
> >  	const char *reg_name = "";
> > +	bool fixed_off_ok = true;
> >
> >  	if (reg->type != PTR_TO_BTF_ID && reg->type != PTR_TO_BTF_ID_OR_NULL)
> >  		goto bad_type;
> > @@ -3524,7 +3530,26 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
> >  	/* We need to verify reg->type and reg->btf, before accessing reg->btf */
> >  	reg_name = kernel_type_name(reg->btf, reg->btf_id);
> >
> > -	if (__check_ptr_off_reg(env, reg, regno, true))
> > +	if (ref_ptr) {
> > +		if (!reg->ref_obj_id) {
> > +			verbose(env, "R%d must be referenced %s%s\n", regno,
> > +				reg_type_str(env, PTR_TO_BTF_ID), targ_name);
> > +			return -EACCES;
> > +		}
> > +		/* reg->off can be used to store pointer to a certain type formed by
> > +		 * incrementing pointer of a parent structure the object is embedded in,
> > +		 * e.g. map may expect unreferenced struct path *, and user should be
> > +		 * allowed a store using &file->f_path. However, in the case of
> > +		 * referenced pointer, we cannot do this, because the reference is only
> > +		 * for the parent structure, not its embedded object(s), and because
> > +		 * the transfer of ownership happens for the original pointer to and
> > +		 * from the map (before its eventual release).
> > +		 */
> > +		if (reg->off)
> > +			fixed_off_ok = false;
> > +	}
> > +	/* var_off is rejected by __check_ptr_off_reg for PTR_TO_BTF_ID */
> > +	if (__check_ptr_off_reg(env, reg, regno, fixed_off_ok))
> >  		return -EACCES;
> >
> >  	if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
> > @@ -3550,6 +3575,7 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
> >  	struct bpf_map_value_off_desc *off_desc;
> >  	int insn_class = BPF_CLASS(insn->code);
> >  	struct bpf_map *map = reg->map_ptr;
> > +	bool ref_ptr = false;
> >
> >  	/* Things we already checked for in check_map_access:
> >  	 *  - Reject cases where variable offset may touch BTF ID pointer
> > @@ -3574,9 +3600,15 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
> >  		return -EPERM;
> >  	}
> >
> > +	ref_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_REF;
> > +
> >  	if (insn_class == BPF_LDX) {
> >  		if (WARN_ON_ONCE(value_regno < 0))
> >  			return -EFAULT;
> > +		if (ref_ptr) {
> > +			verbose(env, "accessing referenced kptr disallowed\n");
> > +			return -EACCES;
> > +		}
>
> Please do this warn once instead of copy paste 3 times.
>

Ok.

> >  		val_reg = reg_state(env, value_regno);
> >  		/* We can simply mark the value_regno receiving the pointer
> >  		 * value from map as PTR_TO_BTF_ID, with the correct type.
> > @@ -3587,11 +3619,19 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
> >  	} else if (insn_class == BPF_STX) {
> >  		if (WARN_ON_ONCE(value_regno < 0))
> >  			return -EFAULT;
> > +		if (ref_ptr) {
> > +			verbose(env, "accessing referenced kptr disallowed\n");
> > +			return -EACCES;
> > +		}
> >  		val_reg = reg_state(env, value_regno);
> >  		if (!register_is_null(val_reg) &&
> > -		    map_kptr_match_type(env, off_desc, val_reg, value_regno))
> > +		    map_kptr_match_type(env, off_desc, val_reg, value_regno, false))
> >  			return -EACCES;
> >  	} else if (insn_class == BPF_ST) {
> > +		if (ref_ptr) {
> > +			verbose(env, "accessing referenced kptr disallowed\n");
> > +			return -EACCES;
> > +		}
> >  		if (insn->imm) {
> >  			verbose(env, "BPF_ST imm must be 0 when storing to kptr at off=%u\n",
> >  				off_desc->offset);
> > @@ -5265,6 +5305,63 @@ static int process_timer_func(struct bpf_verifier_env *env, int regno,
> >  	return 0;
> >  }
> >
> > +static int process_kptr_func(struct bpf_verifier_env *env, int regno,
> > +			     struct bpf_call_arg_meta *meta)
> > +{
> > +	struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[regno];
> > +	struct bpf_map_value_off_desc *off_desc;
> > +	struct bpf_map *map_ptr = reg->map_ptr;
> > +	u32 kptr_off;
> > +	int ret;
> > +
> > +	if (!env->bpf_capable) {
> > +		verbose(env, "kptr access only allowed for CAP_BPF and CAP_SYS_ADMIN\n");
> > +		return -EPERM;
> > +	}
>
> another check? pls drop.
>

That check would never be hit for bpf_kptr_xchg, if I followed the code
correctly, but you already said to move into map_check_btf.

> > +	if (!tnum_is_const(reg->var_off)) {
> > +		verbose(env,
> > +			"R%d doesn't have constant offset. kptr has to be at the constant offset\n",
> > +			regno);
> > +		return -EINVAL;
> > +	}
> > +	if (!map_ptr->btf) {
> > +		verbose(env, "map '%s' has to have BTF in order to use bpf_kptr_xchg\n",
> > +			map_ptr->name);
> > +		return -EINVAL;
> > +	}
> > +	if (!map_value_has_kptr(map_ptr)) {
> > +		ret = PTR_ERR(map_ptr->kptr_off_tab);
> > +		if (ret == -E2BIG)
> > +			verbose(env, "map '%s' has more than %d kptr\n", map_ptr->name,
> > +				BPF_MAP_VALUE_OFF_MAX);
> > +		else if (ret == -EEXIST)
> > +			verbose(env, "map '%s' has repeating kptr BTF tags\n", map_ptr->name);
> > +		else
> > +			verbose(env, "map '%s' has no valid kptr\n", map_ptr->name);
> > +		return -EINVAL;
> > +	}
> > +
> > +	meta->map_ptr = map_ptr;
> > +	/* Check access for BPF_WRITE */
> > +	meta->raw_mode = true;
> > +	ret = check_helper_mem_access(env, regno, sizeof(u64), false, meta);
> > +	if (ret < 0)
> > +		return ret;
> > +
> > +	kptr_off = reg->off + reg->var_off.value;
> > +	off_desc = bpf_map_kptr_off_contains(map_ptr, kptr_off);
> > +	if (!off_desc) {
> > +		verbose(env, "off=%d doesn't point to kptr\n", kptr_off);
> > +		return -EACCES;
> > +	}
> > +	if (!(off_desc->flags & BPF_MAP_VALUE_OFF_F_REF)) {
> > +		verbose(env, "off=%d kptr isn't referenced kptr\n", kptr_off);
> > +		return -EACCES;
> > +	}
> > +	meta->kptr_off_desc = off_desc;
> > +	return 0;
> > +}
> > +
> >  static bool arg_type_is_mem_ptr(enum bpf_arg_type type)
> >  {
> >  	return base_type(type) == ARG_PTR_TO_MEM ||
> > @@ -5400,6 +5497,7 @@ static const struct bpf_reg_types func_ptr_types = { .types = { PTR_TO_FUNC } };
> >  static const struct bpf_reg_types stack_ptr_types = { .types = { PTR_TO_STACK } };
> >  static const struct bpf_reg_types const_str_ptr_types = { .types = { PTR_TO_MAP_VALUE } };
> >  static const struct bpf_reg_types timer_types = { .types = { PTR_TO_MAP_VALUE } };
> > +static const struct bpf_reg_types kptr_types = { .types = { PTR_TO_MAP_VALUE } };
> >
> >  static const struct bpf_reg_types *compatible_reg_types[__BPF_ARG_TYPE_MAX] = {
> >  	[ARG_PTR_TO_MAP_KEY]		= &map_key_value_types,
> > @@ -5427,11 +5525,13 @@ static const struct bpf_reg_types *compatible_reg_types[__BPF_ARG_TYPE_MAX] = {
> >  	[ARG_PTR_TO_STACK]		= &stack_ptr_types,
> >  	[ARG_PTR_TO_CONST_STR]		= &const_str_ptr_types,
> >  	[ARG_PTR_TO_TIMER]		= &timer_types,
> > +	[ARG_PTR_TO_KPTR]		= &kptr_types,
> >  };
> >
> >  static int check_reg_type(struct bpf_verifier_env *env, u32 regno,
> >  			  enum bpf_arg_type arg_type,
> > -			  const u32 *arg_btf_id)
> > +			  const u32 *arg_btf_id,
> > +			  struct bpf_call_arg_meta *meta)
> >  {
> >  	struct bpf_reg_state *regs = cur_regs(env), *reg = &regs[regno];
> >  	enum bpf_reg_type expected, type = reg->type;
> > @@ -5484,8 +5584,15 @@ static int check_reg_type(struct bpf_verifier_env *env, u32 regno,
> >  			arg_btf_id = compatible->btf_id;
> >  		}
> >
> > -		if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
> > -					  btf_vmlinux, *arg_btf_id)) {
> > +		if (meta->func_id == BPF_FUNC_kptr_xchg) {
> > +			if (!meta->kptr_off_desc) {
> > +				verbose(env, "verifier internal error: meta.kptr_off_desc unset\n");
> > +				return -EFAULT;
> > +			}
>
> please audit all patches and remove all instances of defensive programming.
>

I was just keeping it the same as meta->map_ptr checks in different places, but
no problem with removing them.

> > +			if (map_kptr_match_type(env, meta->kptr_off_desc, reg, regno, true))
> > +				return -EACCES;
> > +		} else if (!btf_struct_ids_match(&env->log, reg->btf, reg->btf_id, reg->off,
> > +						 btf_vmlinux, *arg_btf_id)) {
> >  			verbose(env, "R%d is of type %s but %s is expected\n",
> >  				regno, kernel_type_name(reg->btf, reg->btf_id),
> >  				kernel_type_name(btf_vmlinux, *arg_btf_id));
> > @@ -5595,7 +5702,7 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
> >  		 */
> >  		goto skip_type_check;
> >
> > -	err = check_reg_type(env, regno, arg_type, fn->arg_btf_id[arg]);
> > +	err = check_reg_type(env, regno, arg_type, fn->arg_btf_id[arg], meta);
> >  	if (err)
> >  		return err;
> >
> > @@ -5760,6 +5867,14 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
> >  			verbose(env, "string is not zero-terminated\n");
> >  			return -EINVAL;
> >  		}
> > +	} else if (arg_type == ARG_PTR_TO_KPTR) {
> > +		if (meta->func_id == BPF_FUNC_kptr_xchg) {
> > +			if (process_kptr_func(env, regno, meta))
> > +				return -EACCES;
> > +		} else {
> > +			verbose(env, "verifier internal error\n");
> > +			return -EFAULT;
>
> remove.
>
> > +		}
> >  	}
> >
> >  	return err;
> > @@ -6102,10 +6217,10 @@ static bool check_btf_id_ok(const struct bpf_func_proto *fn)
> >  	int i;
> >
> >  	for (i = 0; i < ARRAY_SIZE(fn->arg_type); i++) {
> > -		if (fn->arg_type[i] == ARG_PTR_TO_BTF_ID && !fn->arg_btf_id[i])
> > +		if (base_type(fn->arg_type[i]) == ARG_PTR_TO_BTF_ID && !fn->arg_btf_id[i])
> >  			return false;
> >
> > -		if (fn->arg_type[i] != ARG_PTR_TO_BTF_ID && fn->arg_btf_id[i])
> > +		if (base_type(fn->arg_type[i]) != ARG_PTR_TO_BTF_ID && fn->arg_btf_id[i])
> >  			return false;
> >  	}
> >
> > @@ -6830,7 +6945,15 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
> >  	}
> >
> >  	if (is_release_function(func_id)) {
> > -		err = release_reference(env, meta.ref_obj_id);
> > +		err = -EINVAL;
> > +		if (meta.ref_obj_id)
> > +			err = release_reference(env, meta.ref_obj_id);
> > +		/* Only bpf_kptr_xchg is a release function that accepts a
> > +		 * possibly NULL reg, hence meta.ref_obj_id can only be unset
> > +		 * for it.
>
> Could you rephrase the comment? I'm not following what it's trying to convey.
>

All existing release helpers never take a NULL register, so their
meta.ref_obj_id will never be unset, but bpf_kptr_xchg can, so it needs some
special handling. In check_func_arg, when it jumps to skip_type_check label,
reg->ref_obj_id won't be set for NULL value.

> > +		 */
> > +		else if (func_id == BPF_FUNC_kptr_xchg)
> > +			err = 0;
> >  		if (err) {
> >  			verbose(env, "func %s#%d reference has not been acquired before\n",
> >  				func_id_name(func_id), func_id);
> > @@ -6963,21 +7086,29 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
> >  			regs[BPF_REG_0].btf_id = meta.ret_btf_id;
> >  		}
> >  	} else if (base_type(ret_type) == RET_PTR_TO_BTF_ID) {
> > +		struct btf *ret_btf;
> >  		int ret_btf_id;
> >
> >  		mark_reg_known_zero(env, regs, BPF_REG_0);
> >  		regs[BPF_REG_0].type = PTR_TO_BTF_ID | ret_flag;
> > -		ret_btf_id = *fn->ret_btf_id;
> > +		if (func_id == BPF_FUNC_kptr_xchg) {
> > +			if (!meta.kptr_off_desc) {
> > +				verbose(env, "verifier internal error: meta.kptr_off_desc unset\n");
> > +				return -EFAULT;
>
> remove.
>
> > +			}
> > +			ret_btf = meta.kptr_off_desc->btf;
> > +			ret_btf_id = meta.kptr_off_desc->btf_id;
> > +		} else {
> > +			ret_btf = btf_vmlinux;
> > +			ret_btf_id = *fn->ret_btf_id;
> > +		}
> >  		if (ret_btf_id == 0) {
> >  			verbose(env, "invalid return type %u of func %s#%d\n",
> >  				base_type(ret_type), func_id_name(func_id),
> >  				func_id);
> >  			return -EINVAL;
> >  		}
> > -		/* current BPF helper definitions are only coming from
> > -		 * built-in code with type IDs from  vmlinux BTF
> > -		 */
> > -		regs[BPF_REG_0].btf = btf_vmlinux;
> > +		regs[BPF_REG_0].btf = ret_btf;
> >  		regs[BPF_REG_0].btf_id = ret_btf_id;
> >  	} else {
> >  		verbose(env, "unknown return type %u of func %s#%d\n",
> > diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
> > index 99fab54ae9c0..d45568746e79 100644
> > --- a/tools/include/uapi/linux/bpf.h
> > +++ b/tools/include/uapi/linux/bpf.h
> > @@ -5129,6 +5129,17 @@ union bpf_attr {
> >   *		The **hash_algo** is returned on success,
> >   *		**-EOPNOTSUP** if the hash calculation failed or **-EINVAL** if
> >   *		invalid arguments are passed.
> > + *
> > + * void *bpf_kptr_xchg(void *map_value, void *ptr)
> > + *	Description
> > + *		Exchange kptr at pointer *map_value* with *ptr*, and return the
> > + *		old value. *ptr* can be NULL, otherwise it must be a referenced
> > + *		pointer which will be released when this helper is called.
> > + *	Return
> > + *		The old value of kptr (which can be NULL). The returned pointer
> > + *		if not NULL, is a reference which must be released using its
> > + *		corresponding release function, or moved into a BPF map before
> > + *		program exit.
> >   */
> >  #define __BPF_FUNC_MAPPER(FN)		\
> >  	FN(unspec),			\
> > @@ -5325,6 +5336,7 @@ union bpf_attr {
> >  	FN(copy_from_user_task),	\
> >  	FN(skb_set_tstamp),		\
> >  	FN(ima_file_hash),		\
> > +	FN(kptr_xchg),			\
> >  	/* */
> >
> >  /* integer value in 'imm' field of BPF_CALL instruction selects which helper
> > --
> > 2.35.1
> >
>
> --

--
Kartikeya

Re: [PATCH bpf-next v2 04/15] bpf: Allow storing referenced kptr in map

[Alexei Starovoitov]

On Sun, Mar 20, 2022 at 12:29:04AM +0530, Kumar Kartikeya Dwivedi wrote:
> > >
> > >  	if (is_release_function(func_id)) {
> > > -		err = release_reference(env, meta.ref_obj_id);
> > > +		err = -EINVAL;
> > > +		if (meta.ref_obj_id)
> > > +			err = release_reference(env, meta.ref_obj_id);
> > > +		/* Only bpf_kptr_xchg is a release function that accepts a
> > > +		 * possibly NULL reg, hence meta.ref_obj_id can only be unset
> > > +		 * for it.
> >
> > Could you rephrase the comment? I'm not following what it's trying to convey.
> >
> 
> All existing release helpers never take a NULL register, so their
> meta.ref_obj_id will never be unset, but bpf_kptr_xchg can, so it needs some
> special handling. In check_func_arg, when it jumps to skip_type_check label,
> reg->ref_obj_id won't be set for NULL value.

I still don't follow.
What do you mean 'unset meta.ref_obj_id' ?
It's either set or not.
meta->ref_obj_id will stay zero when arg == NULL.
Above 'if (meta.ref_obj_id)' makes sense.
But the code below with extra func_id check looks like defensive programming again.

> > > +		 */
> > > +		else if (func_id == BPF_FUNC_kptr_xchg)
> > > +			err = 0;

Re: [PATCH bpf-next v2 04/15] bpf: Allow storing referenced kptr in map

[Kumar Kartikeya Dwivedi]

On Sun, Mar 20, 2022 at 02:53:20AM IST, Alexei Starovoitov wrote:
> On Sun, Mar 20, 2022 at 12:29:04AM +0530, Kumar Kartikeya Dwivedi wrote:
> > > >
> > > >  	if (is_release_function(func_id)) {
> > > > -		err = release_reference(env, meta.ref_obj_id);
> > > > +		err = -EINVAL;
> > > > +		if (meta.ref_obj_id)
> > > > +			err = release_reference(env, meta.ref_obj_id);
> > > > +		/* Only bpf_kptr_xchg is a release function that accepts a
> > > > +		 * possibly NULL reg, hence meta.ref_obj_id can only be unset
> > > > +		 * for it.
> > >
> > > Could you rephrase the comment? I'm not following what it's trying to convey.
> > >
> >
> > All existing release helpers never take a NULL register, so their
> > meta.ref_obj_id will never be unset, but bpf_kptr_xchg can, so it needs some
> > special handling. In check_func_arg, when it jumps to skip_type_check label,
> > reg->ref_obj_id won't be set for NULL value.
>
> I still don't follow.
> What do you mean 'unset meta.ref_obj_id' ?
> It's either set or not.

By unset I meant it is the default (0).

> meta->ref_obj_id will stay zero when arg == NULL.
> Above 'if (meta.ref_obj_id)' makes sense.
> But the code below with extra func_id check looks like defensive programming again.
>

Ok, so I'll just write it like:

if (is_release_function(...) && meta.ref_obj_id) {
	err = release_reference(...);
	if (err)
		...
}

> > > > +		 */
> > > > +		else if (func_id == BPF_FUNC_kptr_xchg)
> > > > +			err = 0;

--
Kartikeya

Re: [PATCH bpf-next v2 04/15] bpf: Allow storing referenced kptr in map

[Kumar Kartikeya Dwivedi]

On Sun, Mar 20, 2022 at 03:13:03AM IST, Kumar Kartikeya Dwivedi wrote:
> On Sun, Mar 20, 2022 at 02:53:20AM IST, Alexei Starovoitov wrote:
> > On Sun, Mar 20, 2022 at 12:29:04AM +0530, Kumar Kartikeya Dwivedi wrote:
> > > > >
> > > > >  	if (is_release_function(func_id)) {
> > > > > -		err = release_reference(env, meta.ref_obj_id);
> > > > > +		err = -EINVAL;
> > > > > +		if (meta.ref_obj_id)
> > > > > +			err = release_reference(env, meta.ref_obj_id);
> > > > > +		/* Only bpf_kptr_xchg is a release function that accepts a
> > > > > +		 * possibly NULL reg, hence meta.ref_obj_id can only be unset
> > > > > +		 * for it.
> > > >
> > > > Could you rephrase the comment? I'm not following what it's trying to convey.
> > > >
> > >
> > > All existing release helpers never take a NULL register, so their
> > > meta.ref_obj_id will never be unset, but bpf_kptr_xchg can, so it needs some
> > > special handling. In check_func_arg, when it jumps to skip_type_check label,
> > > reg->ref_obj_id won't be set for NULL value.
> >
> > I still don't follow.
> > What do you mean 'unset meta.ref_obj_id' ?
> > It's either set or not.
>
> By unset I meant it is the default (0).
>
> > meta->ref_obj_id will stay zero when arg == NULL.
> > Above 'if (meta.ref_obj_id)' makes sense.
> > But the code below with extra func_id check looks like defensive programming again.
> >
>
> Ok, so I'll just write it like:
>
> if (is_release_function(...) && meta.ref_obj_id) {
> 	err = release_reference(...);
> 	if (err)
> 		...
> }
>

Ah, after reworking, bpf_sk_release(listen_sk) in verifier/ref_tracking.c is
failing, now I remember why I did it this way.

So meta.ref_obj_id may be 0 in many other cases, where reg->ref_obj_id is 0, not
just for the NULL register, so we need to special case the bpf_kptr_xchg. User
cannot pass any other reg with ref_obj_id == 0 to it because verifier will check
type to be PTR_TO_BTF_ID_OR_NULL, if register is not NULL.


> > > > > +		 */
> > > > > +		else if (func_id == BPF_FUNC_kptr_xchg)
> > > > > +			err = 0;
>
> --
> Kartikeya

--
Kartikeya

[PATCH bpf-next v2 05/15] bpf: Allow storing percpu kptr in map

[Kumar Kartikeya Dwivedi]

Make adjustments to the code to allow storing percpu PTR_TO_BTF_ID in a
map. Similar to 'kptr_ref' tag, a new 'kptr_percpu' allows tagging types
of pointers accepting stores of such register types. On load, verifier
marks destination register as having type PTR_TO_BTF_ID | MEM_PERCPU |
PTR_MAYBE_NULL.

Cc: Hao Luo <haoluo@google.com>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h   |  3 ++-
 kernel/bpf/btf.c      | 13 ++++++++++---
 kernel/bpf/verifier.c | 26 +++++++++++++++++++++-----
 3 files changed, 33 insertions(+), 9 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 702aa882e4a3..433f5cb161cf 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -161,7 +161,8 @@ enum {
 };
 
 enum {
-	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
+	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
+	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),
 };
 
 struct bpf_map_value_off_desc {
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 7b4179667bf1..04d604931f59 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3197,7 +3197,7 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 			       u32 off, int sz, struct btf_field_info *info,
 			       int info_cnt, int idx)
 {
-	bool kptr_tag = false, kptr_ref_tag = false;
+	bool kptr_tag = false, kptr_ref_tag = false, kptr_percpu_tag = false;
 	int tags;
 
 	/* For PTR, sz is always == 8 */
@@ -3216,12 +3216,17 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 			if (kptr_ref_tag)
 				return -EEXIST;
 			kptr_ref_tag = true;
+		} else if (!strcmp("kptr_percpu", __btf_name_by_offset(btf, t->name_off))) {
+			/* repeated tag */
+			if (kptr_percpu_tag)
+				return -EEXIST;
+			kptr_percpu_tag = true;
 		}
 		/* Look for next tag */
 		t = btf_type_by_id(btf, t->type);
 	}
 
-	tags = kptr_tag + kptr_ref_tag;
+	tags = kptr_tag + kptr_ref_tag + kptr_percpu_tag;
 	if (!tags)
 		return BTF_FIELD_IGNORE;
 	else if (tags > 1)
@@ -3236,7 +3241,9 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 
 	if (idx >= info_cnt)
 		return -E2BIG;
-	if (kptr_ref_tag)
+	if (kptr_percpu_tag)
+		info[idx].flags = BPF_MAP_VALUE_OFF_F_PERCPU;
+	else if (kptr_ref_tag)
 		info[idx].flags = BPF_MAP_VALUE_OFF_F_REF;
 	else
 		info[idx].flags = 0;
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index f8738054aa52..cc8f7250e43e 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -3517,11 +3517,19 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
 			       bool ref_ptr)
 {
 	const char *targ_name = kernel_type_name(off_desc->btf, off_desc->btf_id);
+	enum bpf_reg_type reg_type;
 	const char *reg_name = "";
 	bool fixed_off_ok = true;
 
-	if (reg->type != PTR_TO_BTF_ID && reg->type != PTR_TO_BTF_ID_OR_NULL)
-		goto bad_type;
+	if (off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU) {
+		if (reg->type != (PTR_TO_BTF_ID | MEM_PERCPU) &&
+		    reg->type != (PTR_TO_BTF_ID | PTR_MAYBE_NULL | MEM_PERCPU))
+			goto bad_type;
+	} else { /* referenced and unreferenced case */
+		if (reg->type != PTR_TO_BTF_ID &&
+		    reg->type != (PTR_TO_BTF_ID | PTR_MAYBE_NULL))
+			goto bad_type;
+	}
 
 	if (!btf_is_kernel(reg->btf)) {
 		verbose(env, "R%d must point to kernel BTF\n", regno);
@@ -3557,9 +3565,13 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
 		goto bad_type;
 	return 0;
 bad_type:
+	if (off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU)
+		reg_type = PTR_TO_BTF_ID | PTR_MAYBE_NULL | MEM_PERCPU;
+	else
+		reg_type = PTR_TO_BTF_ID | PTR_MAYBE_NULL;
 	verbose(env, "invalid kptr access, R%d type=%s%s ", regno,
 		reg_type_str(env, reg->type), reg_name);
-	verbose(env, "expected=%s%s\n", reg_type_str(env, PTR_TO_BTF_ID), targ_name);
+	verbose(env, "expected=%s%s\n", reg_type_str(env, reg_type), targ_name);
 	return -EINVAL;
 }
 
@@ -3572,10 +3584,11 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 {
 	struct bpf_reg_state *reg = reg_state(env, regno), *val_reg;
 	struct bpf_insn *insn = &env->prog->insnsi[insn_idx];
+	enum bpf_type_flag reg_flags = PTR_MAYBE_NULL;
+	bool ref_ptr = false, percpu_ptr = false;
 	struct bpf_map_value_off_desc *off_desc;
 	int insn_class = BPF_CLASS(insn->code);
 	struct bpf_map *map = reg->map_ptr;
-	bool ref_ptr = false;
 
 	/* Things we already checked for in check_map_access:
 	 *  - Reject cases where variable offset may touch BTF ID pointer
@@ -3601,6 +3614,9 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 	}
 
 	ref_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_REF;
+	percpu_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU;
+	if (percpu_ptr)
+		reg_flags |= MEM_PERCPU;
 
 	if (insn_class == BPF_LDX) {
 		if (WARN_ON_ONCE(value_regno < 0))
@@ -3614,7 +3630,7 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 		 * value from map as PTR_TO_BTF_ID, with the correct type.
 		 */
 		mark_btf_ld_reg(env, cur_regs(env), value_regno, PTR_TO_BTF_ID, off_desc->btf,
-				off_desc->btf_id, PTR_MAYBE_NULL);
+				off_desc->btf_id, reg_flags);
 		val_reg->id = ++env->id_gen;
 	} else if (insn_class == BPF_STX) {
 		if (WARN_ON_ONCE(value_regno < 0))
-- 
2.35.1

Re: [PATCH bpf-next v2 05/15] bpf: Allow storing percpu kptr in map

[Alexei Starovoitov]

On Thu, Mar 17, 2022 at 05:29:47PM +0530, Kumar Kartikeya Dwivedi wrote:
> Make adjustments to the code to allow storing percpu PTR_TO_BTF_ID in a
> map. Similar to 'kptr_ref' tag, a new 'kptr_percpu' allows tagging types
> of pointers accepting stores of such register types. On load, verifier
> marks destination register as having type PTR_TO_BTF_ID | MEM_PERCPU |
> PTR_MAYBE_NULL.
> 
> Cc: Hao Luo <haoluo@google.com>
> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> ---
>  include/linux/bpf.h   |  3 ++-
>  kernel/bpf/btf.c      | 13 ++++++++++---
>  kernel/bpf/verifier.c | 26 +++++++++++++++++++++-----
>  3 files changed, 33 insertions(+), 9 deletions(-)
> 
> diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> index 702aa882e4a3..433f5cb161cf 100644
> --- a/include/linux/bpf.h
> +++ b/include/linux/bpf.h
> @@ -161,7 +161,8 @@ enum {
>  };
>  
>  enum {
> -	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
> +	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
> +	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),

What is the use case for storing __percpu pointer into a map?

Re: [PATCH bpf-next v2 05/15] bpf: Allow storing percpu kptr in map

[Kumar Kartikeya Dwivedi]

On Sun, Mar 20, 2022 at 12:00:28AM IST, Alexei Starovoitov wrote:
> On Thu, Mar 17, 2022 at 05:29:47PM +0530, Kumar Kartikeya Dwivedi wrote:
> > Make adjustments to the code to allow storing percpu PTR_TO_BTF_ID in a
> > map. Similar to 'kptr_ref' tag, a new 'kptr_percpu' allows tagging types
> > of pointers accepting stores of such register types. On load, verifier
> > marks destination register as having type PTR_TO_BTF_ID | MEM_PERCPU |
> > PTR_MAYBE_NULL.
> >
> > Cc: Hao Luo <haoluo@google.com>
> > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > ---
> >  include/linux/bpf.h   |  3 ++-
> >  kernel/bpf/btf.c      | 13 ++++++++++---
> >  kernel/bpf/verifier.c | 26 +++++++++++++++++++++-----
> >  3 files changed, 33 insertions(+), 9 deletions(-)
> >
> > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > index 702aa882e4a3..433f5cb161cf 100644
> > --- a/include/linux/bpf.h
> > +++ b/include/linux/bpf.h
> > @@ -161,7 +161,8 @@ enum {
> >  };
> >
> >  enum {
> > -	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
> > +	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
> > +	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),
>
> What is the use case for storing __percpu pointer into a map?

No specific use case for me, just thought it would be useful, especially now
that __percpu tag is understood by verifier for kernel BTF, so it may also refer
to dynamically allocated per-CPU memory, not just global percpu variables. But
fine with dropping both this and user kptr if you don't feel like keeping them.

--
Kartikeya

Re: [PATCH bpf-next v2 05/15] bpf: Allow storing percpu kptr in map

[Alexei Starovoitov]

On Sun, Mar 20, 2022 at 12:34:09AM +0530, Kumar Kartikeya Dwivedi wrote:
> On Sun, Mar 20, 2022 at 12:00:28AM IST, Alexei Starovoitov wrote:
> > On Thu, Mar 17, 2022 at 05:29:47PM +0530, Kumar Kartikeya Dwivedi wrote:
> > > Make adjustments to the code to allow storing percpu PTR_TO_BTF_ID in a
> > > map. Similar to 'kptr_ref' tag, a new 'kptr_percpu' allows tagging types
> > > of pointers accepting stores of such register types. On load, verifier
> > > marks destination register as having type PTR_TO_BTF_ID | MEM_PERCPU |
> > > PTR_MAYBE_NULL.
> > >
> > > Cc: Hao Luo <haoluo@google.com>
> > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > > ---
> > >  include/linux/bpf.h   |  3 ++-
> > >  kernel/bpf/btf.c      | 13 ++++++++++---
> > >  kernel/bpf/verifier.c | 26 +++++++++++++++++++++-----
> > >  3 files changed, 33 insertions(+), 9 deletions(-)
> > >
> > > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > > index 702aa882e4a3..433f5cb161cf 100644
> > > --- a/include/linux/bpf.h
> > > +++ b/include/linux/bpf.h
> > > @@ -161,7 +161,8 @@ enum {
> > >  };
> > >
> > >  enum {
> > > -	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
> > > +	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
> > > +	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),
> >
> > What is the use case for storing __percpu pointer into a map?
> 
> No specific use case for me, just thought it would be useful, especially now
> that __percpu tag is understood by verifier for kernel BTF, so it may also refer
> to dynamically allocated per-CPU memory, not just global percpu variables. But
> fine with dropping both this and user kptr if you don't feel like keeping them.

I prefer to drop it for now.
The patch is trivial but kptr_percpu tag would stay forever.
Maybe we can allow storing percpu pointers in a map with just kptr tag.
The verifier should be able to understand from btf whether that pointer
is percpu or not.

Re: [PATCH bpf-next v2 05/15] bpf: Allow storing percpu kptr in map

[Kumar Kartikeya Dwivedi]

On Sun, Mar 20, 2022 at 02:56:20AM IST, Alexei Starovoitov wrote:
> On Sun, Mar 20, 2022 at 12:34:09AM +0530, Kumar Kartikeya Dwivedi wrote:
> > On Sun, Mar 20, 2022 at 12:00:28AM IST, Alexei Starovoitov wrote:
> > > On Thu, Mar 17, 2022 at 05:29:47PM +0530, Kumar Kartikeya Dwivedi wrote:
> > > > Make adjustments to the code to allow storing percpu PTR_TO_BTF_ID in a
> > > > map. Similar to 'kptr_ref' tag, a new 'kptr_percpu' allows tagging types
> > > > of pointers accepting stores of such register types. On load, verifier
> > > > marks destination register as having type PTR_TO_BTF_ID | MEM_PERCPU |
> > > > PTR_MAYBE_NULL.
> > > >
> > > > Cc: Hao Luo <haoluo@google.com>
> > > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > > > ---
> > > >  include/linux/bpf.h   |  3 ++-
> > > >  kernel/bpf/btf.c      | 13 ++++++++++---
> > > >  kernel/bpf/verifier.c | 26 +++++++++++++++++++++-----
> > > >  3 files changed, 33 insertions(+), 9 deletions(-)
> > > >
> > > > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > > > index 702aa882e4a3..433f5cb161cf 100644
> > > > --- a/include/linux/bpf.h
> > > > +++ b/include/linux/bpf.h
> > > > @@ -161,7 +161,8 @@ enum {
> > > >  };
> > > >
> > > >  enum {
> > > > -	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
> > > > +	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
> > > > +	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),
> > >
> > > What is the use case for storing __percpu pointer into a map?
> >
> > No specific use case for me, just thought it would be useful, especially now
> > that __percpu tag is understood by verifier for kernel BTF, so it may also refer
> > to dynamically allocated per-CPU memory, not just global percpu variables. But
> > fine with dropping both this and user kptr if you don't feel like keeping them.
>
> I prefer to drop it for now.
> The patch is trivial but kptr_percpu tag would stay forever.

Ok, I'll drop both this and user kptr for now.

> Maybe we can allow storing percpu pointers in a map with just kptr tag.
> The verifier should be able to understand from btf whether that pointer
> is percpu or not.

This won't work (unless I missed something), it is possible to see the type when
a store is being done, but we cannot know whether the pointer was percpu or not
when doing a load (which is needed to decide whether it will be marked with
MEM_PERCPU, so that user has to call bpf_this_cpu_ptr or bpf_per_cpu_ptr to
obtain actual pointer). So some extra tagging is needed.

--
Kartikeya

Re: [PATCH bpf-next v2 05/15] bpf: Allow storing percpu kptr in map

[Alexei Starovoitov]

On Sun, Mar 20, 2022 at 03:15:05AM +0530, Kumar Kartikeya Dwivedi wrote:
> On Sun, Mar 20, 2022 at 02:56:20AM IST, Alexei Starovoitov wrote:
> > On Sun, Mar 20, 2022 at 12:34:09AM +0530, Kumar Kartikeya Dwivedi wrote:
> > > On Sun, Mar 20, 2022 at 12:00:28AM IST, Alexei Starovoitov wrote:
> > > > On Thu, Mar 17, 2022 at 05:29:47PM +0530, Kumar Kartikeya Dwivedi wrote:
> > > > > Make adjustments to the code to allow storing percpu PTR_TO_BTF_ID in a
> > > > > map. Similar to 'kptr_ref' tag, a new 'kptr_percpu' allows tagging types
> > > > > of pointers accepting stores of such register types. On load, verifier
> > > > > marks destination register as having type PTR_TO_BTF_ID | MEM_PERCPU |
> > > > > PTR_MAYBE_NULL.
> > > > >
> > > > > Cc: Hao Luo <haoluo@google.com>
> > > > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > > > > ---
> > > > >  include/linux/bpf.h   |  3 ++-
> > > > >  kernel/bpf/btf.c      | 13 ++++++++++---
> > > > >  kernel/bpf/verifier.c | 26 +++++++++++++++++++++-----
> > > > >  3 files changed, 33 insertions(+), 9 deletions(-)
> > > > >
> > > > > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > > > > index 702aa882e4a3..433f5cb161cf 100644
> > > > > --- a/include/linux/bpf.h
> > > > > +++ b/include/linux/bpf.h
> > > > > @@ -161,7 +161,8 @@ enum {
> > > > >  };
> > > > >
> > > > >  enum {
> > > > > -	BPF_MAP_VALUE_OFF_F_REF = (1U << 0),
> > > > > +	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
> > > > > +	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),
> > > >
> > > > What is the use case for storing __percpu pointer into a map?
> > >
> > > No specific use case for me, just thought it would be useful, especially now
> > > that __percpu tag is understood by verifier for kernel BTF, so it may also refer
> > > to dynamically allocated per-CPU memory, not just global percpu variables. But
> > > fine with dropping both this and user kptr if you don't feel like keeping them.
> >
> > I prefer to drop it for now.
> > The patch is trivial but kptr_percpu tag would stay forever.
> 
> Ok, I'll drop both this and user kptr for now.
> 
> > Maybe we can allow storing percpu pointers in a map with just kptr tag.
> > The verifier should be able to understand from btf whether that pointer
> > is percpu or not.
> 
> This won't work (unless I missed something), it is possible to see the type when
> a store is being done, but we cannot know whether the pointer was percpu or not
> when doing a load (which is needed to decide whether it will be marked with
> MEM_PERCPU, so that user has to call bpf_this_cpu_ptr or bpf_per_cpu_ptr to
> obtain actual pointer). So some extra tagging is needed.

The pointer in bpf program should probably be marked as normal __percpu then.
So that types match during both store and load.
It will be a combination of btf_tags __kptr and __percpu.
Anyway let's table this discussion until main feature lands.

[PATCH bpf-next v2 06/15] bpf: Allow storing user kptr in map

[Kumar Kartikeya Dwivedi]

Recently, verifier gained __user annotation support [0] where it
prevents BPF program from normally derefering user memory pointer in the
kernel, and instead requires use of bpf_probe_read_user. We can allow
the user to also store these pointers in BPF maps, with the logic that
whenever user loads it from the BPF map, it gets marked as MEM_USER. The
tag 'kptr_user' is used to tag such pointers.

  [0]: https://lore.kernel.org/bpf/20220127154555.650886-1-yhs@fb.com

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h   |  1 +
 kernel/bpf/btf.c      | 13 ++++++++++---
 kernel/bpf/verifier.c | 15 ++++++++++++---
 3 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 433f5cb161cf..989f47334215 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -163,6 +163,7 @@ enum {
 enum {
 	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
 	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),
+	BPF_MAP_VALUE_OFF_F_USER   = (1U << 2),
 };
 
 struct bpf_map_value_off_desc {
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 04d604931f59..12a89e55e77b 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3197,7 +3197,7 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 			       u32 off, int sz, struct btf_field_info *info,
 			       int info_cnt, int idx)
 {
-	bool kptr_tag = false, kptr_ref_tag = false, kptr_percpu_tag = false;
+	bool kptr_tag = false, kptr_ref_tag = false, kptr_percpu_tag = false, kptr_user_tag = false;
 	int tags;
 
 	/* For PTR, sz is always == 8 */
@@ -3221,12 +3221,17 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 			if (kptr_percpu_tag)
 				return -EEXIST;
 			kptr_percpu_tag = true;
+		} else if (!strcmp("kptr_user", __btf_name_by_offset(btf, t->name_off))) {
+			/* repeated tag */
+			if (kptr_user_tag)
+				return -EEXIST;
+			kptr_user_tag = true;
 		}
 		/* Look for next tag */
 		t = btf_type_by_id(btf, t->type);
 	}
 
-	tags = kptr_tag + kptr_ref_tag + kptr_percpu_tag;
+	tags = kptr_tag + kptr_ref_tag + kptr_percpu_tag + kptr_user_tag;
 	if (!tags)
 		return BTF_FIELD_IGNORE;
 	else if (tags > 1)
@@ -3241,7 +3246,9 @@ static int btf_find_field_kptr(const struct btf *btf, const struct btf_type *t,
 
 	if (idx >= info_cnt)
 		return -E2BIG;
-	if (kptr_percpu_tag)
+	if (kptr_user_tag)
+		info[idx].flags = BPF_MAP_VALUE_OFF_F_USER;
+	else if (kptr_percpu_tag)
 		info[idx].flags = BPF_MAP_VALUE_OFF_F_PERCPU;
 	else if (kptr_ref_tag)
 		info[idx].flags = BPF_MAP_VALUE_OFF_F_REF;
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index cc8f7250e43e..5325cc37797a 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -3521,7 +3521,11 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
 	const char *reg_name = "";
 	bool fixed_off_ok = true;
 
-	if (off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU) {
+	if (off_desc->flags & BPF_MAP_VALUE_OFF_F_USER) {
+		if (reg->type != (PTR_TO_BTF_ID | MEM_USER) &&
+		    reg->type != (PTR_TO_BTF_ID | PTR_MAYBE_NULL | MEM_USER))
+			goto bad_type;
+	} else if (off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU) {
 		if (reg->type != (PTR_TO_BTF_ID | MEM_PERCPU) &&
 		    reg->type != (PTR_TO_BTF_ID | PTR_MAYBE_NULL | MEM_PERCPU))
 			goto bad_type;
@@ -3565,7 +3569,9 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
 		goto bad_type;
 	return 0;
 bad_type:
-	if (off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU)
+	if (off_desc->flags & BPF_MAP_VALUE_OFF_F_USER)
+		reg_type = PTR_TO_BTF_ID | PTR_MAYBE_NULL | MEM_USER;
+	else if (off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU)
 		reg_type = PTR_TO_BTF_ID | PTR_MAYBE_NULL | MEM_PERCPU;
 	else
 		reg_type = PTR_TO_BTF_ID | PTR_MAYBE_NULL;
@@ -3583,9 +3589,9 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 				 enum bpf_access_type t, int insn_idx)
 {
 	struct bpf_reg_state *reg = reg_state(env, regno), *val_reg;
+	bool ref_ptr = false, percpu_ptr = false, user_ptr = false;
 	struct bpf_insn *insn = &env->prog->insnsi[insn_idx];
 	enum bpf_type_flag reg_flags = PTR_MAYBE_NULL;
-	bool ref_ptr = false, percpu_ptr = false;
 	struct bpf_map_value_off_desc *off_desc;
 	int insn_class = BPF_CLASS(insn->code);
 	struct bpf_map *map = reg->map_ptr;
@@ -3615,8 +3621,11 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 
 	ref_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_REF;
 	percpu_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU;
+	user_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_USER;
 	if (percpu_ptr)
 		reg_flags |= MEM_PERCPU;
+	else if (user_ptr)
+		reg_flags |= MEM_USER;
 
 	if (insn_class == BPF_LDX) {
 		if (WARN_ON_ONCE(value_regno < 0))
-- 
2.35.1

Re: [PATCH bpf-next v2 06/15] bpf: Allow storing user kptr in map

[Alexei Starovoitov]

On Thu, Mar 17, 2022 at 05:29:48PM +0530, Kumar Kartikeya Dwivedi wrote:
> Recently, verifier gained __user annotation support [0] where it
> prevents BPF program from normally derefering user memory pointer in the
> kernel, and instead requires use of bpf_probe_read_user. We can allow
> the user to also store these pointers in BPF maps, with the logic that
> whenever user loads it from the BPF map, it gets marked as MEM_USER. The
> tag 'kptr_user' is used to tag such pointers.
> 
>   [0]: https://lore.kernel.org/bpf/20220127154555.650886-1-yhs@fb.com
> 
> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> ---
>  include/linux/bpf.h   |  1 +
>  kernel/bpf/btf.c      | 13 ++++++++++---
>  kernel/bpf/verifier.c | 15 ++++++++++++---
>  3 files changed, 23 insertions(+), 6 deletions(-)
> 
> diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> index 433f5cb161cf..989f47334215 100644
> --- a/include/linux/bpf.h
> +++ b/include/linux/bpf.h
> @@ -163,6 +163,7 @@ enum {
>  enum {
>  	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
>  	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),
> +	BPF_MAP_VALUE_OFF_F_USER   = (1U << 2),
...
> +		} else if (!strcmp("kptr_user", __btf_name_by_offset(btf, t->name_off))) {

I don't see a use case where __user pointer would need to be stored into a map.
That pointer is valid in the user task context.
When bpf prog has such pointer it can read user mem through it,
but storing it for later makes little sense. The user context will certainly change.
Reading it later from the map is more or less reading random number.
Lets drop this patch until real use case arises.

Re: [PATCH bpf-next v2 06/15] bpf: Allow storing user kptr in map

[Kumar Kartikeya Dwivedi]

On Sat, Mar 19, 2022 at 11:58:13PM IST, Alexei Starovoitov wrote:
> On Thu, Mar 17, 2022 at 05:29:48PM +0530, Kumar Kartikeya Dwivedi wrote:
> > Recently, verifier gained __user annotation support [0] where it
> > prevents BPF program from normally derefering user memory pointer in the
> > kernel, and instead requires use of bpf_probe_read_user. We can allow
> > the user to also store these pointers in BPF maps, with the logic that
> > whenever user loads it from the BPF map, it gets marked as MEM_USER. The
> > tag 'kptr_user' is used to tag such pointers.
> >
> >   [0]: https://lore.kernel.org/bpf/20220127154555.650886-1-yhs@fb.com
> >
> > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > ---
> >  include/linux/bpf.h   |  1 +
> >  kernel/bpf/btf.c      | 13 ++++++++++---
> >  kernel/bpf/verifier.c | 15 ++++++++++++---
> >  3 files changed, 23 insertions(+), 6 deletions(-)
> >
> > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > index 433f5cb161cf..989f47334215 100644
> > --- a/include/linux/bpf.h
> > +++ b/include/linux/bpf.h
> > @@ -163,6 +163,7 @@ enum {
> >  enum {
> >  	BPF_MAP_VALUE_OFF_F_REF    = (1U << 0),
> >  	BPF_MAP_VALUE_OFF_F_PERCPU = (1U << 1),
> > +	BPF_MAP_VALUE_OFF_F_USER   = (1U << 2),
> ...
> > +		} else if (!strcmp("kptr_user", __btf_name_by_offset(btf, t->name_off))) {
>
> I don't see a use case where __user pointer would need to be stored into a map.
> That pointer is valid in the user task context.
> When bpf prog has such pointer it can read user mem through it,
> but storing it for later makes little sense. The user context will certainly change.
> Reading it later from the map is more or less reading random number.
> Lets drop this patch until real use case arises.

In some cases the address may be fixed (e.g. user area registration similar to
rseq, that can be done between task and BPF program), as long as the task is
alive.

But the patch itself is trivial, so fine with dropping for now.

--
Kartikeya

[PATCH bpf-next v2 07/15] bpf: Prevent escaping of kptr loaded from maps

[Kumar Kartikeya Dwivedi]

While we can guarantee that even for unreferenced kptr, the object
pointer points to being freed etc. can be handled by the verifier's
exception handling (normal load patching to PROBE_MEM loads), we still
cannot allow the user to pass these pointers to BPF helpers and kfunc,
because the same exception handling won't be done for accesses inside
the kernel. The same is true if a referenced pointer is loaded using
normal load instruction. Since the reference is not guaranteed to be
held while the pointer is used, it must be marked as untrusted.

Hence introduce a new type flag, PTR_UNTRUSTED, which is used to mark
all registers loading unreferenced and referenced kptr from BPF maps,
and ensure they can never escape the BPF program and into the kernel by
way of calling stable/unstable helpers.

In check_ptr_to_btf_access, the !type_may_be_null check to reject type
flags is still correct, as apart from PTR_MAYBE_NULL, only MEM_USER,
MEM_PERCPU, and PTR_UNTRUSTED may be set for PTR_TO_BTF_ID. The first
two are checked inside the function and rejected using a proper error
message, but we still want to allow dereference of untrusted case.

Also, we make sure to inherit PTR_UNTRUSTED when chain of pointers are
walked, so that this flag is never dropped once it has been set on a
PTR_TO_BTF_ID (i.e. trusted to untrusted transition can only be in one
direction).

In convert_ctx_accesses, extend the switch case to consider untrusted
PTR_TO_BTF_ID in addition to normal PTR_TO_BTF_ID for PROBE_MEM
conversion for BPF_LDX.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h   | 10 +++++++++-
 kernel/bpf/verifier.c | 29 +++++++++++++++++++++++------
 2 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 989f47334215..8ac3070aa5e6 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -371,7 +371,15 @@ enum bpf_type_flag {
 	 */
 	MEM_PERCPU		= BIT(4 + BPF_BASE_TYPE_BITS),
 
-	__BPF_TYPE_LAST_FLAG	= MEM_PERCPU,
+	/* PTR is not trusted. This is only used with PTR_TO_BTF_ID, to mark
+	 * unreferenced and referenced kptr loaded from map value using a load
+	 * instruction, so that they can only be dereferenced but not escape the
+	 * BPF program into the kernel (i.e. cannot be passed as arguments to
+	 * kfunc or bpf helpers).
+	 */
+	PTR_UNTRUSTED		= BIT(5 + BPF_BASE_TYPE_BITS),
+
+	__BPF_TYPE_LAST_FLAG	= PTR_UNTRUSTED,
 };
 
 /* Max number of base types. */
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 5325cc37797a..1130a74ad864 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -579,6 +579,8 @@ static const char *reg_type_str(struct bpf_verifier_env *env,
 		strncpy(prefix, "user_", 32);
 	if (type & MEM_PERCPU)
 		strncpy(prefix, "percpu_", 32);
+	if (type & PTR_UNTRUSTED)
+		strncpy(prefix, "untrusted_", 32);
 
 	snprintf(env->type_str_buf, TYPE_STR_BUF_LEN, "%s%s%s",
 		 prefix, str[base_type(type)], postfix);
@@ -3529,10 +3531,16 @@ static int map_kptr_match_type(struct bpf_verifier_env *env,
 		if (reg->type != (PTR_TO_BTF_ID | MEM_PERCPU) &&
 		    reg->type != (PTR_TO_BTF_ID | PTR_MAYBE_NULL | MEM_PERCPU))
 			goto bad_type;
-	} else { /* referenced and unreferenced case */
+	} else if (off_desc->flags & BPF_MAP_VALUE_OFF_F_REF) {
 		if (reg->type != PTR_TO_BTF_ID &&
 		    reg->type != (PTR_TO_BTF_ID | PTR_MAYBE_NULL))
 			goto bad_type;
+	} else { /* only unreferenced case accepts untrusted pointers */
+		if (reg->type != PTR_TO_BTF_ID &&
+		    reg->type != (PTR_TO_BTF_ID | PTR_MAYBE_NULL) &&
+		    reg->type != (PTR_TO_BTF_ID | PTR_UNTRUSTED) &&
+		    reg->type != (PTR_TO_BTF_ID | PTR_MAYBE_NULL | PTR_UNTRUSTED))
+			goto bad_type;
 	}
 
 	if (!btf_is_kernel(reg->btf)) {
@@ -3622,18 +3630,20 @@ static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
 	ref_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_REF;
 	percpu_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_PERCPU;
 	user_ptr = off_desc->flags & BPF_MAP_VALUE_OFF_F_USER;
+
 	if (percpu_ptr)
 		reg_flags |= MEM_PERCPU;
 	else if (user_ptr)
 		reg_flags |= MEM_USER;
+	else
+		reg_flags |= PTR_UNTRUSTED;
 
 	if (insn_class == BPF_LDX) {
 		if (WARN_ON_ONCE(value_regno < 0))
 			return -EFAULT;
-		if (ref_ptr) {
-			verbose(env, "accessing referenced kptr disallowed\n");
-			return -EACCES;
-		}
+		/* We allow loading referenced kptr, since it will be marked as
+		 * untrusted, similar to unreferenced kptr.
+		 */
 		val_reg = reg_state(env, value_regno);
 		/* We can simply mark the value_regno receiving the pointer
 		 * value from map as PTR_TO_BTF_ID, with the correct type.
@@ -4414,6 +4424,12 @@ static int check_ptr_to_btf_access(struct bpf_verifier_env *env,
 	if (ret < 0)
 		return ret;
 
+	/* If this is an untrusted pointer, all pointers formed by walking it
+	 * also inherit the untrusted flag.
+	 */
+	if (type_flag(reg->type) & PTR_UNTRUSTED)
+		flag |= PTR_UNTRUSTED;
+
 	if (atype == BPF_READ && value_regno >= 0)
 		mark_btf_ld_reg(env, regs, value_regno, ret, reg->btf, btf_id, flag);
 
@@ -13109,7 +13125,7 @@ static int convert_ctx_accesses(struct bpf_verifier_env *env)
 		if (!ctx_access)
 			continue;
 
-		switch (env->insn_aux_data[i + delta].ptr_type) {
+		switch ((int)env->insn_aux_data[i + delta].ptr_type) {
 		case PTR_TO_CTX:
 			if (!ops->convert_ctx_access)
 				continue;
@@ -13126,6 +13142,7 @@ static int convert_ctx_accesses(struct bpf_verifier_env *env)
 			convert_ctx_access = bpf_xdp_sock_convert_ctx_access;
 			break;
 		case PTR_TO_BTF_ID:
+		case PTR_TO_BTF_ID | PTR_UNTRUSTED:
 			if (type == BPF_READ) {
 				insn->code = BPF_LDX | BPF_PROBE_MEM |
 					BPF_SIZE((insn)->code);
-- 
2.35.1

[PATCH bpf-next v2 08/15] bpf: Adapt copy_map_value for multiple offset case

[Kumar Kartikeya Dwivedi]

Since now there might be at most 10 offsets that need handling in
copy_map_value, the manual shuffling and special case is no longer going
to work. Hence, let's generalise the copy_map_value function by using
a sorted array of offsets to skip regions that must be avoided while
copying into and out of a map value.

When the map is created, we populate the offset array in struct map,
with one extra element for map->value_size, which is used as the final
offset to subtract previous offset from. Since there can only be three
sizes, we can avoid recording the size in the struct map, and only store
sorted offsets. Later we can determine the size for each offset by
comparing it to timer_off and spin_lock_off, otherwise it must be
sizeof(u64) for kptr.

Then, copy_map_value uses this sorted offset array is used to memcpy
while skipping timer, spin lock, and kptr.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h  | 59 +++++++++++++++++++++++++-------------------
 kernel/bpf/syscall.c | 47 +++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+), 26 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 8ac3070aa5e6..f0f1e0d3bb2e 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -158,6 +158,10 @@ struct bpf_map_ops {
 enum {
 	/* Support at most 8 pointers in a BPF map value */
 	BPF_MAP_VALUE_OFF_MAX = 8,
+	BPF_MAP_OFF_ARR_MAX   = BPF_MAP_VALUE_OFF_MAX +
+				1 + /* for bpf_spin_lock */
+				1 + /* for bpf_timer */
+				1,  /* for map->value_size sentinel */
 };
 
 enum {
@@ -208,7 +212,12 @@ struct bpf_map {
 	char name[BPF_OBJ_NAME_LEN];
 	bool bypass_spec_v1;
 	bool frozen; /* write-once; write-protected by freeze_mutex */
-	/* 6 bytes hole */
+	/* 2 bytes hole */
+	struct {
+		u32 off[BPF_MAP_OFF_ARR_MAX];
+		u32 cnt;
+	} off_arr;
+	/* 20 bytes hole */
 
 	/* The 3rd and 4th cacheline with misc members to avoid false sharing
 	 * particularly with refcounting.
@@ -252,36 +261,34 @@ static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
 		memset(dst + map->spin_lock_off, 0, sizeof(struct bpf_spin_lock));
 	if (unlikely(map_value_has_timer(map)))
 		memset(dst + map->timer_off, 0, sizeof(struct bpf_timer));
+	if (unlikely(map_value_has_kptr(map))) {
+		struct bpf_map_value_off *tab = map->kptr_off_tab;
+		int i;
+
+		for (i = 0; i < tab->nr_off; i++)
+			*(u64 *)(dst + tab->off[i].offset) = 0;
+	}
 }
 
 /* copy everything but bpf_spin_lock and bpf_timer. There could be one of each. */
 static inline void copy_map_value(struct bpf_map *map, void *dst, void *src)
 {
-	u32 s_off = 0, s_sz = 0, t_off = 0, t_sz = 0;
-
-	if (unlikely(map_value_has_spin_lock(map))) {
-		s_off = map->spin_lock_off;
-		s_sz = sizeof(struct bpf_spin_lock);
-	}
-	if (unlikely(map_value_has_timer(map))) {
-		t_off = map->timer_off;
-		t_sz = sizeof(struct bpf_timer);
-	}
-
-	if (unlikely(s_sz || t_sz)) {
-		if (s_off < t_off || !s_sz) {
-			swap(s_off, t_off);
-			swap(s_sz, t_sz);
-		}
-		memcpy(dst, src, t_off);
-		memcpy(dst + t_off + t_sz,
-		       src + t_off + t_sz,
-		       s_off - t_off - t_sz);
-		memcpy(dst + s_off + s_sz,
-		       src + s_off + s_sz,
-		       map->value_size - s_off - s_sz);
-	} else {
-		memcpy(dst, src, map->value_size);
+	int i;
+
+	memcpy(dst, src, map->off_arr.off[0]);
+	for (i = 1; i < map->off_arr.cnt; i++) {
+		u32 curr_off = map->off_arr.off[i - 1];
+		u32 next_off = map->off_arr.off[i];
+		u32 curr_sz;
+
+		if (map_value_has_spin_lock(map) && map->spin_lock_off == curr_off)
+			curr_sz = sizeof(struct bpf_spin_lock);
+		else if (map_value_has_timer(map) && map->timer_off == curr_off)
+			curr_sz = sizeof(struct bpf_timer);
+		else
+			curr_sz = sizeof(u64);
+		curr_off += curr_sz;
+		memcpy(dst + curr_off, src + curr_off, next_off - curr_off);
 	}
 }
 void copy_map_value_locked(struct bpf_map *map, void *dst, void *src,
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 87263b07f40b..69e8ea1be432 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -30,6 +30,7 @@
 #include <linux/pgtable.h>
 #include <linux/bpf_lsm.h>
 #include <linux/poll.h>
+#include <linux/sort.h>
 #include <linux/bpf-netns.h>
 #include <linux/rcupdate_trace.h>
 #include <linux/memcontrol.h>
@@ -850,6 +851,50 @@ int map_check_no_btf(const struct bpf_map *map,
 	return -ENOTSUPP;
 }
 
+static int map_off_arr_cmp(const void *_a, const void *_b)
+{
+	const u32 a = *(const u32 *)_a;
+	const u32 b = *(const u32 *)_b;
+
+	if (a < b)
+		return -1;
+	else if (a > b)
+		return 1;
+	return 0;
+}
+
+static void map_populate_off_arr(struct bpf_map *map)
+{
+	u32 i;
+
+	map->off_arr.cnt = 0;
+	if (map_value_has_spin_lock(map)) {
+		i = map->off_arr.cnt;
+
+		map->off_arr.off[i] = map->spin_lock_off;
+		map->off_arr.cnt++;
+	}
+	if (map_value_has_timer(map)) {
+		i = map->off_arr.cnt;
+
+		map->off_arr.off[i] = map->timer_off;
+		map->off_arr.cnt++;
+	}
+	if (map_value_has_kptr(map)) {
+		struct bpf_map_value_off *tab = map->kptr_off_tab;
+		u32 j = map->off_arr.cnt;
+
+		for (i = 0; i < tab->nr_off; i++)
+			map->off_arr.off[j + i] = tab->off[i].offset;
+		map->off_arr.cnt += tab->nr_off;
+	}
+
+	map->off_arr.off[map->off_arr.cnt++] = map->value_size;
+	if (map->off_arr.cnt == 1)
+		return;
+	sort(map->off_arr.off, map->off_arr.cnt, sizeof(map->off_arr.off[0]), map_off_arr_cmp, NULL);
+}
+
 static int map_check_btf(struct bpf_map *map, const struct btf *btf,
 			 u32 btf_key_id, u32 btf_value_id)
 {
@@ -1015,6 +1060,8 @@ static int map_create(union bpf_attr *attr)
 			attr->btf_vmlinux_value_type_id;
 	}
 
+	map_populate_off_arr(map);
+
 	err = security_bpf_map_alloc(map);
 	if (err)
 		goto free_map;
-- 
2.35.1

Re: [PATCH bpf-next v2 08/15] bpf: Adapt copy_map_value for multiple offset case

[Alexei Starovoitov]

On Thu, Mar 17, 2022 at 05:29:50PM +0530, Kumar Kartikeya Dwivedi wrote:
> Since now there might be at most 10 offsets that need handling in
> copy_map_value, the manual shuffling and special case is no longer going
> to work. Hence, let's generalise the copy_map_value function by using
> a sorted array of offsets to skip regions that must be avoided while
> copying into and out of a map value.
> 
> When the map is created, we populate the offset array in struct map,
> with one extra element for map->value_size, which is used as the final
> offset to subtract previous offset from. Since there can only be three
> sizes, we can avoid recording the size in the struct map, and only store
> sorted offsets. Later we can determine the size for each offset by
> comparing it to timer_off and spin_lock_off, otherwise it must be
> sizeof(u64) for kptr.
> 
> Then, copy_map_value uses this sorted offset array is used to memcpy
> while skipping timer, spin lock, and kptr.
> 
> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> ---
>  include/linux/bpf.h  | 59 +++++++++++++++++++++++++-------------------
>  kernel/bpf/syscall.c | 47 +++++++++++++++++++++++++++++++++++
>  2 files changed, 80 insertions(+), 26 deletions(-)
> 
> diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> index 8ac3070aa5e6..f0f1e0d3bb2e 100644
> --- a/include/linux/bpf.h
> +++ b/include/linux/bpf.h
> @@ -158,6 +158,10 @@ struct bpf_map_ops {
>  enum {
>  	/* Support at most 8 pointers in a BPF map value */
>  	BPF_MAP_VALUE_OFF_MAX = 8,
> +	BPF_MAP_OFF_ARR_MAX   = BPF_MAP_VALUE_OFF_MAX +
> +				1 + /* for bpf_spin_lock */
> +				1 + /* for bpf_timer */
> +				1,  /* for map->value_size sentinel */
>  };
>  
>  enum {
> @@ -208,7 +212,12 @@ struct bpf_map {
>  	char name[BPF_OBJ_NAME_LEN];
>  	bool bypass_spec_v1;
>  	bool frozen; /* write-once; write-protected by freeze_mutex */
> -	/* 6 bytes hole */
> +	/* 2 bytes hole */
> +	struct {
> +		u32 off[BPF_MAP_OFF_ARR_MAX];
> +		u32 cnt;
> +	} off_arr;
> +	/* 20 bytes hole */
>  
>  	/* The 3rd and 4th cacheline with misc members to avoid false sharing
>  	 * particularly with refcounting.
> @@ -252,36 +261,34 @@ static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
>  		memset(dst + map->spin_lock_off, 0, sizeof(struct bpf_spin_lock));
>  	if (unlikely(map_value_has_timer(map)))
>  		memset(dst + map->timer_off, 0, sizeof(struct bpf_timer));
> +	if (unlikely(map_value_has_kptr(map))) {
> +		struct bpf_map_value_off *tab = map->kptr_off_tab;
> +		int i;
> +
> +		for (i = 0; i < tab->nr_off; i++)
> +			*(u64 *)(dst + tab->off[i].offset) = 0;
> +	}
>  }
>  
>  /* copy everything but bpf_spin_lock and bpf_timer. There could be one of each. */
>  static inline void copy_map_value(struct bpf_map *map, void *dst, void *src)
>  {
> -	u32 s_off = 0, s_sz = 0, t_off = 0, t_sz = 0;
> -
> -	if (unlikely(map_value_has_spin_lock(map))) {
> -		s_off = map->spin_lock_off;
> -		s_sz = sizeof(struct bpf_spin_lock);
> -	}
> -	if (unlikely(map_value_has_timer(map))) {
> -		t_off = map->timer_off;
> -		t_sz = sizeof(struct bpf_timer);
> -	}
> -
> -	if (unlikely(s_sz || t_sz)) {
> -		if (s_off < t_off || !s_sz) {
> -			swap(s_off, t_off);
> -			swap(s_sz, t_sz);
> -		}
> -		memcpy(dst, src, t_off);
> -		memcpy(dst + t_off + t_sz,
> -		       src + t_off + t_sz,
> -		       s_off - t_off - t_sz);
> -		memcpy(dst + s_off + s_sz,
> -		       src + s_off + s_sz,
> -		       map->value_size - s_off - s_sz);
> -	} else {
> -		memcpy(dst, src, map->value_size);
> +	int i;
> +
> +	memcpy(dst, src, map->off_arr.off[0]);
> +	for (i = 1; i < map->off_arr.cnt; i++) {
> +		u32 curr_off = map->off_arr.off[i - 1];
> +		u32 next_off = map->off_arr.off[i];
> +		u32 curr_sz;
> +
> +		if (map_value_has_spin_lock(map) && map->spin_lock_off == curr_off)
> +			curr_sz = sizeof(struct bpf_spin_lock);
> +		else if (map_value_has_timer(map) && map->timer_off == curr_off)
> +			curr_sz = sizeof(struct bpf_timer);
> +		else
> +			curr_sz = sizeof(u64);

Lets store size in off_arr as well.
Memory consumption of few u8-s are worth it.
Single load is faster than two if-s and a bunch of load.

> +		curr_off += curr_sz;
> +		memcpy(dst + curr_off, src + curr_off, next_off - curr_off);
>  	}
>  }
>  void copy_map_value_locked(struct bpf_map *map, void *dst, void *src,
> diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
> index 87263b07f40b..69e8ea1be432 100644
> --- a/kernel/bpf/syscall.c
> +++ b/kernel/bpf/syscall.c
> @@ -30,6 +30,7 @@
>  #include <linux/pgtable.h>
>  #include <linux/bpf_lsm.h>
>  #include <linux/poll.h>
> +#include <linux/sort.h>
>  #include <linux/bpf-netns.h>
>  #include <linux/rcupdate_trace.h>
>  #include <linux/memcontrol.h>
> @@ -850,6 +851,50 @@ int map_check_no_btf(const struct bpf_map *map,
>  	return -ENOTSUPP;
>  }
>  
> +static int map_off_arr_cmp(const void *_a, const void *_b)
> +{
> +	const u32 a = *(const u32 *)_a;
> +	const u32 b = *(const u32 *)_b;
> +
> +	if (a < b)
> +		return -1;
> +	else if (a > b)
> +		return 1;
> +	return 0;
> +}
> +
> +static void map_populate_off_arr(struct bpf_map *map)
> +{
> +	u32 i;
> +
> +	map->off_arr.cnt = 0;
> +	if (map_value_has_spin_lock(map)) {
> +		i = map->off_arr.cnt;
> +
> +		map->off_arr.off[i] = map->spin_lock_off;
> +		map->off_arr.cnt++;
> +	}
> +	if (map_value_has_timer(map)) {
> +		i = map->off_arr.cnt;
> +
> +		map->off_arr.off[i] = map->timer_off;
> +		map->off_arr.cnt++;
> +	}
> +	if (map_value_has_kptr(map)) {
> +		struct bpf_map_value_off *tab = map->kptr_off_tab;
> +		u32 j = map->off_arr.cnt;
> +
> +		for (i = 0; i < tab->nr_off; i++)
> +			map->off_arr.off[j + i] = tab->off[i].offset;
> +		map->off_arr.cnt += tab->nr_off;
> +	}
> +
> +	map->off_arr.off[map->off_arr.cnt++] = map->value_size;
> +	if (map->off_arr.cnt == 1)
> +		return;
> +	sort(map->off_arr.off, map->off_arr.cnt, sizeof(map->off_arr.off[0]), map_off_arr_cmp, NULL);
> +}
> +
>  static int map_check_btf(struct bpf_map *map, const struct btf *btf,
>  			 u32 btf_key_id, u32 btf_value_id)
>  {
> @@ -1015,6 +1060,8 @@ static int map_create(union bpf_attr *attr)
>  			attr->btf_vmlinux_value_type_id;
>  	}
>  
> +	map_populate_off_arr(map);
> +
>  	err = security_bpf_map_alloc(map);
>  	if (err)
>  		goto free_map;
> -- 
> 2.35.1
> 

-- 

Re: [PATCH bpf-next v2 08/15] bpf: Adapt copy_map_value for multiple offset case

[Kumar Kartikeya Dwivedi]

On Sun, Mar 20, 2022 at 12:04:40AM IST, Alexei Starovoitov wrote:
> On Thu, Mar 17, 2022 at 05:29:50PM +0530, Kumar Kartikeya Dwivedi wrote:
> > Since now there might be at most 10 offsets that need handling in
> > copy_map_value, the manual shuffling and special case is no longer going
> > to work. Hence, let's generalise the copy_map_value function by using
> > a sorted array of offsets to skip regions that must be avoided while
> > copying into and out of a map value.
> >
> > When the map is created, we populate the offset array in struct map,
> > with one extra element for map->value_size, which is used as the final
> > offset to subtract previous offset from. Since there can only be three
> > sizes, we can avoid recording the size in the struct map, and only store
> > sorted offsets. Later we can determine the size for each offset by
> > comparing it to timer_off and spin_lock_off, otherwise it must be
> > sizeof(u64) for kptr.
> >
> > Then, copy_map_value uses this sorted offset array is used to memcpy
> > while skipping timer, spin lock, and kptr.
> >
> > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> > ---
> >  include/linux/bpf.h  | 59 +++++++++++++++++++++++++-------------------
> >  kernel/bpf/syscall.c | 47 +++++++++++++++++++++++++++++++++++
> >  2 files changed, 80 insertions(+), 26 deletions(-)
> >
> > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > index 8ac3070aa5e6..f0f1e0d3bb2e 100644
> > --- a/include/linux/bpf.h
> > +++ b/include/linux/bpf.h
> > @@ -158,6 +158,10 @@ struct bpf_map_ops {
> >  enum {
> >  	/* Support at most 8 pointers in a BPF map value */
> >  	BPF_MAP_VALUE_OFF_MAX = 8,
> > +	BPF_MAP_OFF_ARR_MAX   = BPF_MAP_VALUE_OFF_MAX +
> > +				1 + /* for bpf_spin_lock */
> > +				1 + /* for bpf_timer */
> > +				1,  /* for map->value_size sentinel */
> >  };
> >
> >  enum {
> > @@ -208,7 +212,12 @@ struct bpf_map {
> >  	char name[BPF_OBJ_NAME_LEN];
> >  	bool bypass_spec_v1;
> >  	bool frozen; /* write-once; write-protected by freeze_mutex */
> > -	/* 6 bytes hole */
> > +	/* 2 bytes hole */
> > +	struct {
> > +		u32 off[BPF_MAP_OFF_ARR_MAX];
> > +		u32 cnt;
> > +	} off_arr;
> > +	/* 20 bytes hole */
> >
> >  	/* The 3rd and 4th cacheline with misc members to avoid false sharing
> >  	 * particularly with refcounting.
> > @@ -252,36 +261,34 @@ static inline void check_and_init_map_value(struct bpf_map *map, void *dst)
> >  		memset(dst + map->spin_lock_off, 0, sizeof(struct bpf_spin_lock));
> >  	if (unlikely(map_value_has_timer(map)))
> >  		memset(dst + map->timer_off, 0, sizeof(struct bpf_timer));
> > +	if (unlikely(map_value_has_kptr(map))) {
> > +		struct bpf_map_value_off *tab = map->kptr_off_tab;
> > +		int i;
> > +
> > +		for (i = 0; i < tab->nr_off; i++)
> > +			*(u64 *)(dst + tab->off[i].offset) = 0;
> > +	}
> >  }
> >
> >  /* copy everything but bpf_spin_lock and bpf_timer. There could be one of each. */
> >  static inline void copy_map_value(struct bpf_map *map, void *dst, void *src)
> >  {
> > -	u32 s_off = 0, s_sz = 0, t_off = 0, t_sz = 0;
> > -
> > -	if (unlikely(map_value_has_spin_lock(map))) {
> > -		s_off = map->spin_lock_off;
> > -		s_sz = sizeof(struct bpf_spin_lock);
> > -	}
> > -	if (unlikely(map_value_has_timer(map))) {
> > -		t_off = map->timer_off;
> > -		t_sz = sizeof(struct bpf_timer);
> > -	}
> > -
> > -	if (unlikely(s_sz || t_sz)) {
> > -		if (s_off < t_off || !s_sz) {
> > -			swap(s_off, t_off);
> > -			swap(s_sz, t_sz);
> > -		}
> > -		memcpy(dst, src, t_off);
> > -		memcpy(dst + t_off + t_sz,
> > -		       src + t_off + t_sz,
> > -		       s_off - t_off - t_sz);
> > -		memcpy(dst + s_off + s_sz,
> > -		       src + s_off + s_sz,
> > -		       map->value_size - s_off - s_sz);
> > -	} else {
> > -		memcpy(dst, src, map->value_size);
> > +	int i;
> > +
> > +	memcpy(dst, src, map->off_arr.off[0]);
> > +	for (i = 1; i < map->off_arr.cnt; i++) {
> > +		u32 curr_off = map->off_arr.off[i - 1];
> > +		u32 next_off = map->off_arr.off[i];
> > +		u32 curr_sz;
> > +
> > +		if (map_value_has_spin_lock(map) && map->spin_lock_off == curr_off)
> > +			curr_sz = sizeof(struct bpf_spin_lock);
> > +		else if (map_value_has_timer(map) && map->timer_off == curr_off)
> > +			curr_sz = sizeof(struct bpf_timer);
> > +		else
> > +			curr_sz = sizeof(u64);
>
> Lets store size in off_arr as well.
> Memory consumption of few u8-s are worth it.
> Single load is faster than two if-s and a bunch of load.
>

Ok, will include the size in v3.

> > +		curr_off += curr_sz;
> > +		memcpy(dst + curr_off, src + curr_off, next_off - curr_off);
> >  	}
> >  }
> >  void copy_map_value_locked(struct bpf_map *map, void *dst, void *src,
> > diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
> > index 87263b07f40b..69e8ea1be432 100644
> > --- a/kernel/bpf/syscall.c
> > +++ b/kernel/bpf/syscall.c
> > @@ -30,6 +30,7 @@
> >  #include <linux/pgtable.h>
> >  #include <linux/bpf_lsm.h>
> >  #include <linux/poll.h>
> > +#include <linux/sort.h>
> >  #include <linux/bpf-netns.h>
> >  #include <linux/rcupdate_trace.h>
> >  #include <linux/memcontrol.h>
> > @@ -850,6 +851,50 @@ int map_check_no_btf(const struct bpf_map *map,
> >  	return -ENOTSUPP;
> >  }
> >
> > +static int map_off_arr_cmp(const void *_a, const void *_b)
> > +{
> > +	const u32 a = *(const u32 *)_a;
> > +	const u32 b = *(const u32 *)_b;
> > +
> > +	if (a < b)
> > +		return -1;
> > +	else if (a > b)
> > +		return 1;
> > +	return 0;
> > +}
> > +
> > +static void map_populate_off_arr(struct bpf_map *map)
> > +{
> > +	u32 i;
> > +
> > +	map->off_arr.cnt = 0;
> > +	if (map_value_has_spin_lock(map)) {
> > +		i = map->off_arr.cnt;
> > +
> > +		map->off_arr.off[i] = map->spin_lock_off;
> > +		map->off_arr.cnt++;
> > +	}
> > +	if (map_value_has_timer(map)) {
> > +		i = map->off_arr.cnt;
> > +
> > +		map->off_arr.off[i] = map->timer_off;
> > +		map->off_arr.cnt++;
> > +	}
> > +	if (map_value_has_kptr(map)) {
> > +		struct bpf_map_value_off *tab = map->kptr_off_tab;
> > +		u32 j = map->off_arr.cnt;
> > +
> > +		for (i = 0; i < tab->nr_off; i++)
> > +			map->off_arr.off[j + i] = tab->off[i].offset;
> > +		map->off_arr.cnt += tab->nr_off;
> > +	}
> > +
> > +	map->off_arr.off[map->off_arr.cnt++] = map->value_size;
> > +	if (map->off_arr.cnt == 1)
> > +		return;
> > +	sort(map->off_arr.off, map->off_arr.cnt, sizeof(map->off_arr.off[0]), map_off_arr_cmp, NULL);
> > +}
> > +
> >  static int map_check_btf(struct bpf_map *map, const struct btf *btf,
> >  			 u32 btf_key_id, u32 btf_value_id)
> >  {
> > @@ -1015,6 +1060,8 @@ static int map_create(union bpf_attr *attr)
> >  			attr->btf_vmlinux_value_type_id;
> >  	}
> >
> > +	map_populate_off_arr(map);
> > +
> >  	err = security_bpf_map_alloc(map);
> >  	if (err)
> >  		goto free_map;
> > --
> > 2.35.1
> >
>
> --

--
Kartikeya

[PATCH bpf-next v2 09/15] bpf: Always raise reference in btf_get_module_btf

[Kumar Kartikeya Dwivedi]

Align it with helpers like bpf_find_btf_id, so all functions returning
BTF in out parameter follow the same rule of raising reference
consistently, regardless of module or vmlinux BTF.

Adjust existing callers to handle the change accordinly.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/btf.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 12a89e55e77b..2e51b391b684 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -6767,20 +6767,23 @@ struct module *btf_try_get_module(const struct btf *btf)
 	return res;
 }
 
-/* Returns struct btf corresponding to the struct module
- *
- * This function can return NULL or ERR_PTR. Note that caller must
- * release reference for struct btf iff btf_is_module is true.
+/* Returns struct btf corresponding to the struct module.
+ * This function can return NULL or ERR_PTR.
  */
 static struct btf *btf_get_module_btf(const struct module *module)
 {
-	struct btf *btf = NULL;
 #ifdef CONFIG_DEBUG_INFO_BTF_MODULES
 	struct btf_module *btf_mod, *tmp;
 #endif
+	struct btf *btf = NULL;
+
+	if (!module) {
+		btf = bpf_get_btf_vmlinux();
+		if (!IS_ERR(btf))
+			btf_get(btf);
+		return btf;
+	}
 
-	if (!module)
-		return bpf_get_btf_vmlinux();
 #ifdef CONFIG_DEBUG_INFO_BTF_MODULES
 	mutex_lock(&btf_module_mutex);
 	list_for_each_entry_safe(btf_mod, tmp, &btf_modules, list) {
@@ -7018,9 +7021,7 @@ int register_btf_kfunc_id_set(enum bpf_prog_type prog_type,
 
 	hook = bpf_prog_type_to_kfunc_hook(prog_type);
 	ret = btf_populate_kfunc_set(btf, hook, kset);
-	/* reference is only taken for module BTF */
-	if (btf_is_module(btf))
-		btf_put(btf);
+	btf_put(btf);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(register_btf_kfunc_id_set);
-- 
2.35.1

Re: [PATCH bpf-next v2 09/15] bpf: Always raise reference in btf_get_module_btf

[Alexei Starovoitov]

On Thu, Mar 17, 2022 at 05:29:51PM +0530, Kumar Kartikeya Dwivedi wrote:
> Align it with helpers like bpf_find_btf_id, so all functions returning
> BTF in out parameter follow the same rule of raising reference
> consistently, regardless of module or vmlinux BTF.
> 
> Adjust existing callers to handle the change accordinly.
> 
> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>

Applied this and 1st patches.

[bpf] 9a707eb02e: BUG:kernel_NULL_pointer_dereference,address

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 7577 bytes --]



Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 9a707eb02e50d3c736837128261bcba9c96a400d ("[PATCH bpf-next v2 09/15] bpf: Always raise reference in btf_get_module_btf")
url: https://github.com/0day-ci/linux/commits/Kumar-Kartikeya-Dwivedi/Introduce-typed-pointer-support-in-BPF-maps/20220317-200307
base: https://git.kernel.org/cgit/linux/kernel/git/bpf/bpf-next.git master
patch link: https://lore.kernel.org/bpf/20220317115957.3193097-10-memxor@gmail.com

in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu Icelake-Server -smp 4 -m 16G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+---------------------------------------------+------------+------------+
|                                             | 96cb297d08 | 9a707eb02e |
+---------------------------------------------+------------+------------+
| boot_successes                              | 36         | 0          |
| boot_failures                               | 0          | 36         |
| BUG:kernel_NULL_pointer_dereference,address | 0          | 36         |
| Oops:#[##]                                  | 0          | 36         |
| RIP:register_btf_kfunc_id_set               | 0          | 36         |
| Kernel_panic-not_syncing:Fatal_exception    | 0          | 36         |
+---------------------------------------------+------------+------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@intel.com>


[    4.499143][    T1] BUG: kernel NULL pointer dereference, address: 0000000000000054
[    4.500062][    T1] #PF: supervisor write access in kernel mode
[    4.500062][    T1] #PF: error_code(0x0002) - not-present page
[    4.500062][    T1] PGD 0 P4D 0
[    4.500062][    T1] Oops: 0002 [#1] SMP PTI
[    4.500062][    T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.17.0-rc6-02001-g9a707eb02e50 #1
[    4.500062][    T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 4.500062][ T1] RIP: 0010:register_btf_kfunc_id_set (arch/x86/include/asm/atomic.h:184 include/linux/atomic/atomic-instrumented.h:117 include/linux/refcount.h:193 include/linux/refcount.h:250 include/linux/refcount.h:267 kernel/bpf/btf.c:1636 kernel/bpf/btf.c:6783 kernel/bpf/btf.c:7007) 
[ 4.500062][ T1] Code: 5c 41 5d 41 5e 41 5f c3 89 fb 49 89 f4 e8 08 27 fe ff 48 89 c5 48 3d 00 f0 ff ff 0f 87 40 02 00 00 48 8d 78 54 b8 01 00 00 00 <f0> 0f c1 45 54 85 c0 0f 84 55 02 00 00 0f 88 40 02 00 00 83 c0 01
All code
========
   0:	5c                   	pop    %rsp
   1:	41 5d                	pop    %r13
   3:	41 5e                	pop    %r14
   5:	41 5f                	pop    %r15
   7:	c3                   	retq   
   8:	89 fb                	mov    %edi,%ebx
   a:	49 89 f4             	mov    %rsi,%r12
   d:	e8 08 27 fe ff       	callq  0xfffffffffffe271a
  12:	48 89 c5             	mov    %rax,%rbp
  15:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
  1b:	0f 87 40 02 00 00    	ja     0x261
  21:	48 8d 78 54          	lea    0x54(%rax),%rdi
  25:	b8 01 00 00 00       	mov    $0x1,%eax
  2a:*	f0 0f c1 45 54       	lock xadd %eax,0x54(%rbp)		<-- trapping instruction
  2f:	85 c0                	test   %eax,%eax
  31:	0f 84 55 02 00 00    	je     0x28c
  37:	0f 88 40 02 00 00    	js     0x27d
  3d:	83 c0 01             	add    $0x1,%eax

Code starting with the faulting instruction
===========================================
   0:	f0 0f c1 45 54       	lock xadd %eax,0x54(%rbp)
   5:	85 c0                	test   %eax,%eax
   7:	0f 84 55 02 00 00    	je     0x262
   d:	0f 88 40 02 00 00    	js     0x253
  13:	83 c0 01             	add    $0x1,%eax
[    4.500062][    T1] RSP: 0000:ffffa6e9c0013dd8 EFLAGS: 00010207
[    4.500062][    T1] RAX: 0000000000000001 RBX: 000000000000001b RCX: 000000000000019a
[    4.500062][    T1] RDX: 00000000000000ce RSI: ffffffffb79054c0 RDI: 0000000000000054
[    4.500062][    T1] RBP: 0000000000000000 R08: ffffa6e9c0013dd8 R09: ffffa6e9c0013dd8
[    4.500062][    T1] R10: 0000000000030400 R11: 0000000000000000 R12: ffffffffb79054c0
[    4.500062][    T1] R13: ffff989c4004f800 R14: 0000000000000000 R15: 0000000000000000
[    4.500062][    T1] FS:  0000000000000000(0000) GS:ffff989f6fc80000(0000) knlGS:0000000000000000
[    4.500062][    T1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.500062][    T1] CR2: 0000000000000054 CR3: 0000000198a0a001 CR4: 0000000000060ee0
[    4.500062][    T1] Call Trace:
[    4.500062][    T1]  <TASK>
[ 4.500062][ T1] ? ip_auto_config (net/ipv4/tcp_cubic.c:507) 
[ 4.500062][ T1] cubictcp_register (net/ipv4/tcp_cubic.c:541) 
[ 4.500062][ T1] do_one_initcall (init/main.c:1302) 
[ 4.500062][ T1] kernel_init_freeable (init/main.c:1374 init/main.c:1391 init/main.c:1410 init/main.c:1615) 
[ 4.500062][ T1] ? rest_init (init/main.c:1496) 
[ 4.500062][ T1] kernel_init (init/main.c:1506) 
[ 4.500062][ T1] ret_from_fork (arch/x86/entry/entry_64.S:301) 
[    4.500062][    T1]  </TASK>
[    4.500062][    T1] Modules linked in:
[    4.500062][    T1] CR2: 0000000000000054
[    4.500062][    T1] ---[ end trace 0000000000000000 ]---
[ 4.500062][ T1] RIP: 0010:register_btf_kfunc_id_set (arch/x86/include/asm/atomic.h:184 include/linux/atomic/atomic-instrumented.h:117 include/linux/refcount.h:193 include/linux/refcount.h:250 include/linux/refcount.h:267 kernel/bpf/btf.c:1636 kernel/bpf/btf.c:6783 kernel/bpf/btf.c:7007) 
[ 4.500062][ T1] Code: 5c 41 5d 41 5e 41 5f c3 89 fb 49 89 f4 e8 08 27 fe ff 48 89 c5 48 3d 00 f0 ff ff 0f 87 40 02 00 00 48 8d 78 54 b8 01 00 00 00 <f0> 0f c1 45 54 85 c0 0f 84 55 02 00 00 0f 88 40 02 00 00 83 c0 01
All code
========
   0:	5c                   	pop    %rsp
   1:	41 5d                	pop    %r13
   3:	41 5e                	pop    %r14
   5:	41 5f                	pop    %r15
   7:	c3                   	retq   
   8:	89 fb                	mov    %edi,%ebx
   a:	49 89 f4             	mov    %rsi,%r12
   d:	e8 08 27 fe ff       	callq  0xfffffffffffe271a
  12:	48 89 c5             	mov    %rax,%rbp
  15:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
  1b:	0f 87 40 02 00 00    	ja     0x261
  21:	48 8d 78 54          	lea    0x54(%rax),%rdi
  25:	b8 01 00 00 00       	mov    $0x1,%eax
  2a:*	f0 0f c1 45 54       	lock xadd %eax,0x54(%rbp)		<-- trapping instruction
  2f:	85 c0                	test   %eax,%eax
  31:	0f 84 55 02 00 00    	je     0x28c
  37:	0f 88 40 02 00 00    	js     0x27d
  3d:	83 c0 01             	add    $0x1,%eax

Code starting with the faulting instruction
===========================================
   0:	f0 0f c1 45 54       	lock xadd %eax,0x54(%rbp)
   5:	85 c0                	test   %eax,%eax
   7:	0f 84 55 02 00 00    	je     0x262
   d:	0f 88 40 02 00 00    	js     0x253
  13:	83 c0 01             	add    $0x1,%eax


To reproduce:

        # build kernel
	cd linux
	cp config-5.17.0-rc6-02001-g9a707eb02e50 .config
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



[-- Attachment #2: config-5.17.0-rc6-02001-g9a707eb02e50 --]
[-- Type: text/plain, Size: 162364 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 5.17.0-rc6 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=90400
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23502
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23502
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_GENERIC_IRQ_INJECTION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_TIME_KUNIT_TEST=m

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
# CONFIG_NO_HZ_IDLE is not set
CONFIG_NO_HZ_FULL=y
CONFIG_CONTEXT_TRACKING=y
# CONFIG_CONTEXT_TRACKING_FORCE is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# CONFIG_BPF_PRELOAD is not set
# CONFIG_BPF_LSM is not set
# end of BPF subsystem

CONFIG_PREEMPT_VOLUNTARY_BUILD=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_PREEMPT_DYNAMIC is not set
# CONFIG_SCHED_CORE is not set

#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_SCHED_AVG_IRQ=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_TASKS_RUDE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_NOCB_CPU=y
# end of RCU Subsystem

CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
# CONFIG_PRINTK_INDEX is not set
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
# CONFIG_UCLAMP_TASK is not set
# end of Scheduler features

CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_NUMA_BALANCING=y
CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_MEMCG_KMEM=y
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_BPF=y
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_HAVE_ARCH_USERFAULTFD_WP=y
CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_USERFAULTFD=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_KCMP=y
CONFIG_RSEQ=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_GUEST_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters

CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
CONFIG_SLAB_FREELIST_RANDOM=y
# CONFIG_SLAB_FREELIST_HARDENED is not set
CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
CONFIG_SLUB_CPU_PARTIAL=y
CONFIG_SYSTEM_DATA_VERIFICATION=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# end of General setup

CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_FILTER_PGPROT=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_NR_GPIO=1024
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_AUDIT_ARCH=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=5
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_X2APIC=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
CONFIG_RETPOLINE=y
# CONFIG_X86_CPU_RESCTRL is not set
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_NUMACHIP is not set
# CONFIG_X86_VSMP is not set
CONFIG_X86_UV=y
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_MID is not set
CONFIG_X86_INTEL_LPSS=y
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_X86_HV_CALLBACK_VECTOR=y
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
CONFIG_PARAVIRT_TIME_ACCOUNTING=y
CONFIG_PARAVIRT_CLOCK=y
# CONFIG_JAILHOUSE_GUEST is not set
# CONFIG_ACRN_GUEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
CONFIG_MAXSMP=y
CONFIG_NR_CPUS_RANGE_BEGIN=8192
CONFIG_NR_CPUS_RANGE_END=8192
CONFIG_NR_CPUS_DEFAULT=8192
CONFIG_NR_CPUS=8192
CONFIG_SCHED_CLUSTER=y
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_SCHED_MC_PRIO=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCELOG_LEGACY=y
CONFIG_X86_MCE_INTEL=y
# CONFIG_X86_MCE_AMD is not set
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=m
CONFIG_PERF_EVENTS_INTEL_RAPL=m
CONFIG_PERF_EVENTS_INTEL_CSTATE=m
# CONFIG_PERF_EVENTS_AMD_POWER is not set
CONFIG_PERF_EVENTS_AMD_UNCORE=y
# end of Performance monitoring

CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
CONFIG_X86_IOPL_IOPERM=y
CONFIG_I8K=m
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_X86_5LEVEL=y
CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_X86_CPA_STATISTICS is not set
# CONFIG_AMD_MEM_ENCRYPT is not set
CONFIG_NUMA=y
# CONFIG_AMD_NUMA is not set
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NUMA_EMU=y
CONFIG_NODES_SHIFT=10
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
# CONFIG_ARCH_MEMORY_PROBE is not set
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_X86_PMEM_LEGACY_DEVICE=y
CONFIG_X86_PMEM_LEGACY=m
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_X86_UMIP=y
CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=y
CONFIG_X86_INTEL_TSX_MODE_OFF=y
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
# CONFIG_X86_SGX is not set
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EFI_MIXED=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_KEXEC_FILE=y
CONFIG_ARCH_HAS_KEXEC_PURGATORY=y
# CONFIG_KEXEC_SIG is not set
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_RANDOMIZE_BASE=y
CONFIG_X86_NEED_RELOCS=y
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_DYNAMIC_MEMORY_LAYOUT=y
CONFIG_RANDOMIZE_MEMORY=y
CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0xa
CONFIG_HOTPLUG_CPU=y
CONFIG_BOOTPARAM_HOTPLUG_CPU0=y
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
CONFIG_LEGACY_VSYSCALL_EMULATE=y
# CONFIG_LEGACY_VSYSCALL_XONLY is not set
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
CONFIG_HAVE_LIVEPATCH=y
CONFIG_LIVEPATCH=y
# end of Processor type and features

CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_HIBERNATION_SNAPSHOT_DEV=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
# CONFIG_PM_ADVANCED_DEBUG is not set
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_PM_TRACE_RTC is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
# CONFIG_ACPI_FPDT is not set
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
CONFIG_ACPI_EC_DEBUGFS=m
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
CONFIG_ACPI_TAD=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_CPPC_LIB=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_PLATFORM_PROFILE=m
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_BGRT=y
CONFIG_ACPI_NFIT=m
# CONFIG_NFIT_SECURITY_DEBUG is not set
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_HMAT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_ACPI_APEI_MEMORY_FAILURE=y
CONFIG_ACPI_APEI_EINJ=m
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_ACPI_DPTF is not set
CONFIG_ACPI_WATCHDOG=y
CONFIG_ACPI_EXTLOG=m
CONFIG_ACPI_ADXL=y
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_ACPI_PFRUT is not set
CONFIG_ACPI_PCC=y
CONFIG_PMIC_OPREGION=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_PRMT=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
CONFIG_X86_INTEL_PSTATE=y
# CONFIG_X86_PCC_CPUFREQ is not set
# CONFIG_X86_AMD_PSTATE is not set
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_X86_POWERNOW_K8=m
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=m

#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
# end of CPU Frequency scaling

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_CPU_IDLE_GOV_TEO is not set
# CONFIG_CPU_IDLE_GOV_HALTPOLL is not set
CONFIG_HALTPOLL_CPUIDLE=y
# end of CPU Idle

CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_MMCONF_FAM10H=y
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# end of Bus options (PCI etc.)

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
# CONFIG_X86_X32 is not set
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
# end of Binary Emulations

CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_PFNCACHE=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_DIRTY_RING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_HAVE_KVM_PM_NOTIFIER=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
# CONFIG_KVM_AMD is not set
# CONFIG_KVM_XEN is not set
CONFIG_KVM_MMU_AUDIT=y
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_HOTPLUG_SMT=y
CONFIG_GENERIC_ENTRY=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_LTO_NONE=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_HUGE_VMALLOC=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_ARCH_USE_MEMREMAP_PROT=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_STATIC_CALL_INLINE=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y
CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_ICQ=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_INTEGRITY_T10=m
# CONFIG_BLK_DEV_ZONED is not set
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_DEV_THROTTLING_LOW is not set
CONFIG_BLK_WBT=y
CONFIG_BLK_WBT_MQ=y
# CONFIG_BLK_CGROUP_IOLATENCY is not set
# CONFIG_BLK_CGROUP_FC_APPID is not set
# CONFIG_BLK_CGROUP_IOCOST is not set
# CONFIG_BLK_CGROUP_IOPRIO is not set
CONFIG_BLK_DEBUG_FS=y
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
# CONFIG_BFQ_CGROUP_DEBUG is not set
# end of IO Schedulers

CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_FAST_GUP=y
CONFIG_NUMA_KEEP_MEMINFO=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_HAVE_BOOTMEM_INFO_NODE=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG=y
# CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_MHP_MEMMAP_ON_MEMORY=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_HWPOISON_INJECT=m
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_ARCH_WANTS_THP_SWAP=y
CONFIG_THP_SWAP=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_FRONTSWAP=y
# CONFIG_CMA is not set
CONFIG_ZSWAP=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT="lzo"
CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
# CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD is not set
# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC is not set
CONFIG_ZSWAP_ZPOOL_DEFAULT="zbud"
# CONFIG_ZSWAP_DEFAULT_ON is not set
CONFIG_ZPOOL=y
CONFIG_ZBUD=y
# CONFIG_Z3FOLD is not set
CONFIG_ZSMALLOC=y
CONFIG_ZSMALLOC_STAT=y
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
CONFIG_PAGE_IDLE_FLAG=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_PTE_DEVMAP=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
CONFIG_ZONE_DEVICE=y
CONFIG_DEV_PAGEMAP_OPS=y
CONFIG_HMM_MIRROR=y
CONFIG_DEVICE_PRIVATE=y
CONFIG_VMAP_PFN=y
CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
CONFIG_ARCH_HAS_PKEYS=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
# CONFIG_READ_ONLY_THP_FOR_FS is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_SECRETMEM=y
# CONFIG_ANON_VMA_NAME is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=m
CONFIG_TLS=m
CONFIG_TLS_DEVICE=y
# CONFIG_TLS_TOE is not set
CONFIG_XFRM=y
CONFIG_XFRM_OFFLOAD=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_USER_COMPAT is not set
# CONFIG_XFRM_INTERFACE is not set
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_AH=m
CONFIG_XFRM_ESP=m
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_XDP_SOCKETS=y
# CONFIG_XDP_SOCKETS_DIAG is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
CONFIG_NET_IPVTI=m
CONFIG_NET_UDP_TUNNEL=m
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_ESP_OFFLOAD=m
# CONFIG_INET_ESPINTCP is not set
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_INET_UDP_DIAG=m
CONFIG_INET_RAW_DIAG=m
# CONFIG_INET_DIAG_DESTROY is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_NV=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_TCP_CONG_DCTCP=m
# CONFIG_TCP_CONG_CDG is not set
CONFIG_TCP_CONG_BBR=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_ESP_OFFLOAD=m
# CONFIG_INET6_ESPINTCP is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
# CONFIG_IPV6_ILA is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_IPV6_VTI=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_GRE=m
CONFIG_IPV6_MULTIPLE_TABLES=y
# CONFIG_IPV6_SUBTREES is not set
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
CONFIG_NETLABEL=y
# CONFIG_MPTCP is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=m

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_EGRESS=y
CONFIG_NETFILTER_SKIP_EGRESS=y
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_FAMILY_BRIDGE=y
CONFIG_NETFILTER_FAMILY_ARP=y
# CONFIG_NETFILTER_NETLINK_HOOK is not set
# CONFIG_NETFILTER_NETLINK_ACCT is not set
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NETFILTER_NETLINK_OSF=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_LOG_SYSLOG=m
CONFIG_NETFILTER_CONNCOUNT=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_ZONES=y
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
CONFIG_NF_CONNTRACK_LABELS=y
CONFIG_NF_CT_PROTO_DCCP=y
CONFIG_NF_CT_PROTO_GRE=y
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CT_PROTO_UDPLITE=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NF_CT_NETLINK_TIMEOUT=m
CONFIG_NF_CT_NETLINK_HELPER=m
CONFIG_NETFILTER_NETLINK_GLUE_CT=y
CONFIG_NF_NAT=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_SIP=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_REDIRECT=y
CONFIG_NF_NAT_MASQUERADE=y
CONFIG_NETFILTER_SYNPROXY=m
CONFIG_NF_TABLES=m
CONFIG_NF_TABLES_INET=y
CONFIG_NF_TABLES_NETDEV=y
CONFIG_NFT_NUMGEN=m
CONFIG_NFT_CT=m
CONFIG_NFT_CONNLIMIT=m
CONFIG_NFT_LOG=m
CONFIG_NFT_LIMIT=m
CONFIG_NFT_MASQ=m
CONFIG_NFT_REDIR=m
CONFIG_NFT_NAT=m
# CONFIG_NFT_TUNNEL is not set
CONFIG_NFT_OBJREF=m
CONFIG_NFT_QUEUE=m
CONFIG_NFT_QUOTA=m
CONFIG_NFT_REJECT=m
CONFIG_NFT_REJECT_INET=m
CONFIG_NFT_COMPAT=m
CONFIG_NFT_HASH=m
CONFIG_NFT_FIB=m
CONFIG_NFT_FIB_INET=m
# CONFIG_NFT_XFRM is not set
CONFIG_NFT_SOCKET=m
# CONFIG_NFT_OSF is not set
# CONFIG_NFT_TPROXY is not set
# CONFIG_NFT_SYNPROXY is not set
CONFIG_NF_DUP_NETDEV=m
CONFIG_NFT_DUP_NETDEV=m
CONFIG_NFT_FWD_NETDEV=m
CONFIG_NFT_FIB_NETDEV=m
# CONFIG_NFT_REJECT_NETDEV is not set
# CONFIG_NF_FLOW_TABLE is not set
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XTABLES_COMPAT=y

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m
CONFIG_NETFILTER_XT_SET=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_HMARK=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
# CONFIG_NETFILTER_XT_TARGET_LED is not set
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_NAT=m
CONFIG_NETFILTER_XT_TARGET_NETMAP=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
CONFIG_NETFILTER_XT_TARGET_MASQUERADE=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_BPF=m
CONFIG_NETFILTER_XT_MATCH_CGROUP=m
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# end of Core Netfilter Configuration

CONFIG_IP_SET=m
CONFIG_IP_SET_MAX=256
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPMARK=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
CONFIG_IP_SET_HASH_IPMAC=m
CONFIG_IP_SET_HASH_MAC=m
CONFIG_IP_SET_HASH_NETPORTNET=m
CONFIG_IP_SET_HASH_NET=m
CONFIG_IP_SET_HASH_NETNET=m
CONFIG_IP_SET_HASH_NETPORT=m
CONFIG_IP_SET_HASH_NETIFACE=m
CONFIG_IP_SET_LIST_SET=m
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_FO=m
CONFIG_IP_VS_OVF=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
# CONFIG_IP_VS_MH is not set
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
# CONFIG_IP_VS_TWOS is not set

#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8

#
# IPVS MH scheduler
#
CONFIG_IP_VS_MH_TAB_INDEX=12

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_NFCT=y
CONFIG_IP_VS_PE_SIP=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_SOCKET_IPV4=m
CONFIG_NF_TPROXY_IPV4=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_REJECT_IPV4=m
CONFIG_NFT_DUP_IPV4=m
CONFIG_NFT_FIB_IPV4=m
CONFIG_NF_TABLES_ARP=y
CONFIG_NF_DUP_IPV4=m
CONFIG_NF_LOG_ARP=m
CONFIG_NF_LOG_IPV4=m
CONFIG_NF_REJECT_IPV4=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_RPFILTER=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_SYNPROXY=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
# end of IP: Netfilter Configuration

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_SOCKET_IPV6=m
CONFIG_NF_TPROXY_IPV6=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_REJECT_IPV6=m
CONFIG_NFT_DUP_IPV6=m
CONFIG_NFT_FIB_IPV6=m
CONFIG_NF_DUP_IPV6=m
CONFIG_NF_REJECT_IPV6=m
CONFIG_NF_LOG_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RPFILTER=m
CONFIG_IP6_NF_MATCH_RT=m
# CONFIG_IP6_NF_MATCH_SRH is not set
# CONFIG_IP6_NF_TARGET_HL is not set
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_TARGET_SYNPROXY=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
CONFIG_IP6_NF_NAT=m
CONFIG_IP6_NF_TARGET_MASQUERADE=m
CONFIG_IP6_NF_TARGET_NPT=m
# end of IPv6: Netfilter Configuration

CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_TABLES_BRIDGE=m
# CONFIG_NFT_BRIDGE_META is not set
CONFIG_NFT_BRIDGE_REJECT=m
# CONFIG_NF_CONNTRACK_BRIDGE is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5 is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
CONFIG_SCTP_COOKIE_HMAC_SHA1=y
CONFIG_INET_SCTP_DIAG=m
# CONFIG_RDS is not set
CONFIG_TIPC=m
CONFIG_TIPC_MEDIA_UDP=y
CONFIG_TIPC_CRYPTO=y
CONFIG_TIPC_DIAG=m
CONFIG_ATM=m
CONFIG_ATM_CLIP=m
# CONFIG_ATM_CLIP_NO_ICMP is not set
CONFIG_ATM_LANE=m
# CONFIG_ATM_MPOA is not set
CONFIG_ATM_BR2684=m
# CONFIG_ATM_BR2684_IPFILTER is not set
CONFIG_L2TP=m
CONFIG_L2TP_DEBUGFS=m
CONFIG_L2TP_V3=y
CONFIG_L2TP_IP=m
CONFIG_L2TP_ETH=m
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_MRP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_BRIDGE_VLAN_FILTERING=y
# CONFIG_BRIDGE_MRP is not set
# CONFIG_BRIDGE_CFM is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
CONFIG_6LOWPAN=m
# CONFIG_6LOWPAN_DEBUGFS is not set
# CONFIG_6LOWPAN_NHC is not set
CONFIG_IEEE802154=m
# CONFIG_IEEE802154_NL802154_EXPERIMENTAL is not set
CONFIG_IEEE802154_SOCKET=m
CONFIG_IEEE802154_6LOWPAN=m
CONFIG_MAC802154=m
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_ATM=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
# CONFIG_NET_SCH_CBS is not set
# CONFIG_NET_SCH_ETF is not set
# CONFIG_NET_SCH_TAPRIO is not set
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
# CONFIG_NET_SCH_SKBPRIO is not set
CONFIG_NET_SCH_CHOKE=m
CONFIG_NET_SCH_QFQ=m
CONFIG_NET_SCH_CODEL=m
CONFIG_NET_SCH_FQ_CODEL=y
# CONFIG_NET_SCH_CAKE is not set
CONFIG_NET_SCH_FQ=m
CONFIG_NET_SCH_HHF=m
CONFIG_NET_SCH_PIE=m
# CONFIG_NET_SCH_FQ_PIE is not set
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_SCH_PLUG=m
# CONFIG_NET_SCH_ETS is not set
CONFIG_NET_SCH_DEFAULT=y
# CONFIG_DEFAULT_FQ is not set
# CONFIG_DEFAULT_CODEL is not set
CONFIG_DEFAULT_FQ_CODEL=y
# CONFIG_DEFAULT_SFQ is not set
# CONFIG_DEFAULT_PFIFO_FAST is not set
CONFIG_DEFAULT_NET_SCH="fq_codel"

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_CLS_BPF=m
CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_CLS_MATCHALL=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
# CONFIG_NET_EMATCH_CANID is not set
CONFIG_NET_EMATCH_IPSET=m
# CONFIG_NET_EMATCH_IPT is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_SAMPLE=m
# CONFIG_NET_ACT_IPT is not set
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
# CONFIG_NET_ACT_MPLS is not set
CONFIG_NET_ACT_VLAN=m
CONFIG_NET_ACT_BPF=m
# CONFIG_NET_ACT_CONNMARK is not set
# CONFIG_NET_ACT_CTINFO is not set
CONFIG_NET_ACT_SKBMOD=m
# CONFIG_NET_ACT_IFE is not set
CONFIG_NET_ACT_TUNNEL_KEY=m
# CONFIG_NET_ACT_GATE is not set
# CONFIG_NET_TC_SKB_EXT is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=m
# CONFIG_BATMAN_ADV is not set
CONFIG_OPENVSWITCH=m
CONFIG_OPENVSWITCH_GRE=m
CONFIG_VSOCKETS=m
CONFIG_VSOCKETS_DIAG=m
CONFIG_VSOCKETS_LOOPBACK=m
CONFIG_VMWARE_VMCI_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS_COMMON=m
CONFIG_NETLINK_DIAG=m
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=y
CONFIG_MPLS_ROUTING=m
CONFIG_MPLS_IPTUNNEL=m
CONFIG_NET_NSH=y
# CONFIG_HSR is not set
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_L3_MASTER_DEV=y
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_STREAM_PARSER=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
CONFIG_NET_DROP_MONITOR=y
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_GW=m
# CONFIG_CAN_J1939 is not set
# CONFIG_CAN_ISOTP is not set

#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=m
# CONFIG_CAN_VXCAN is not set
CONFIG_CAN_SLCAN=m
CONFIG_CAN_DEV=m
CONFIG_CAN_CALC_BITTIMING=y
# CONFIG_CAN_KVASER_PCIEFD is not set
CONFIG_CAN_C_CAN=m
CONFIG_CAN_C_CAN_PLATFORM=m
CONFIG_CAN_C_CAN_PCI=m
CONFIG_CAN_CC770=m
# CONFIG_CAN_CC770_ISA is not set
CONFIG_CAN_CC770_PLATFORM=m
# CONFIG_CAN_IFI_CANFD is not set
# CONFIG_CAN_M_CAN is not set
# CONFIG_CAN_PEAK_PCIEFD is not set
CONFIG_CAN_SJA1000=m
CONFIG_CAN_EMS_PCI=m
# CONFIG_CAN_F81601 is not set
CONFIG_CAN_KVASER_PCI=m
CONFIG_CAN_PEAK_PCI=m
CONFIG_CAN_PEAK_PCIEC=y
CONFIG_CAN_PLX_PCI=m
# CONFIG_CAN_SJA1000_ISA is not set
CONFIG_CAN_SJA1000_PLATFORM=m
CONFIG_CAN_SOFTING=m

#
# CAN SPI interfaces
#
# CONFIG_CAN_HI311X is not set
# CONFIG_CAN_MCP251X is not set
# CONFIG_CAN_MCP251XFD is not set
# end of CAN SPI interfaces

#
# CAN USB interfaces
#
# CONFIG_CAN_8DEV_USB is not set
# CONFIG_CAN_EMS_USB is not set
# CONFIG_CAN_ESD_USB2 is not set
# CONFIG_CAN_ETAS_ES58X is not set
# CONFIG_CAN_GS_USB is not set
# CONFIG_CAN_KVASER_USB is not set
# CONFIG_CAN_MCBA_USB is not set
# CONFIG_CAN_PEAK_USB is not set
# CONFIG_CAN_UCAN is not set
# end of CAN USB interfaces

# CONFIG_CAN_DEBUG_DEVICES is not set
# end of CAN Device Drivers

# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_STREAM_PARSER=y
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
# CONFIG_CFG80211_WEXT is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_FD=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
CONFIG_CEPH_LIB_USE_DNS_RESOLVER=y
# CONFIG_NFC is not set
CONFIG_PSAMPLE=m
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_SOCK_VALIDATE_XMIT=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
CONFIG_FAILOVER=m
CONFIG_ETHTOOL_NETLINK=y
CONFIG_NETDEV_ADDR_LIST_TEST=m

#
# Device Drivers
#
CONFIG_HAVE_EISA=y
# CONFIG_EISA is not set
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIEAER_INJECT=m
CONFIG_PCIE_ECRC=y
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCIE_DPC=y
# CONFIG_PCIE_PTM is not set
# CONFIG_PCIE_EDR is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_PCI_PF_STUB=m
CONFIG_PCI_ATS=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
# CONFIG_PCI_P2PDMA is not set
CONFIG_PCI_LABEL=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=y

#
# PCI controller drivers
#
CONFIG_VMD=y

#
# DesignWare PCI Core Support
#
# CONFIG_PCIE_DW_PLAT_HOST is not set
# CONFIG_PCI_MESON is not set
# end of DesignWare PCI Core Support

#
# Mobiveil PCIe Core Support
#
# end of Mobiveil PCIe Core Support

#
# Cadence PCIe controllers support
#
# end of Cadence PCIe controllers support
# end of PCI controller drivers

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# end of PCI switch controller drivers

# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
# CONFIG_FW_LOADER_COMPRESS is not set
CONFIG_FW_CACHE=y
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
CONFIG_PM_QOS_KUNIT_TEST=y
CONFIG_TEST_ASYNC_DRIVER_PROBE=m
CONFIG_DRIVER_PE_KUNIT_TEST=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_SPI=m
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# end of Bus devices

CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol

CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=y
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT is not set
CONFIG_FW_CFG_SYSFS=y
# CONFIG_FW_CFG_SYSFS_CMDLINE is not set
CONFIG_SYSFB=y
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_ESRT=y
CONFIG_EFI_VARS_PSTORE=y
CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE=y
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_EFI_FAKE_MEMMAP is not set
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
# CONFIG_EFI_BOOTLOADER_CONTROL is not set
# CONFIG_EFI_CAPSULE_LOADER is not set
# CONFIG_EFI_TEST is not set
# CONFIG_APPLE_PROPERTIES is not set
# CONFIG_RESET_ATTACK_MITIGATION is not set
# CONFIG_EFI_RCI2_TABLE is not set
# CONFIG_EFI_DISABLE_PCI_DMA is not set
# end of EFI (Extensible Firmware Interface) Support

CONFIG_UEFI_CPER=y
CONFIG_UEFI_CPER_X86=y
CONFIG_EFI_EARLYCON=y
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS=y

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_NULL_BLK=m
# CONFIG_BLK_DEV_FD is not set
CONFIG_CDROM=m
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_ZRAM is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=0
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_VIRTIO_BLK=m
CONFIG_BLK_DEV_RBD=m

#
# NVME Support
#
CONFIG_NVME_CORE=m
CONFIG_BLK_DEV_NVME=m
CONFIG_NVME_MULTIPATH=y
# CONFIG_NVME_HWMON is not set
CONFIG_NVME_FABRICS=m
CONFIG_NVME_FC=m
# CONFIG_NVME_TCP is not set
CONFIG_NVME_TARGET=m
# CONFIG_NVME_TARGET_PASSTHRU is not set
CONFIG_NVME_TARGET_LOOP=m
CONFIG_NVME_TARGET_FC=m
CONFIG_NVME_TARGET_FCLOOP=m
# CONFIG_NVME_TARGET_TCP is not set
# end of NVME Support

#
# Misc devices
#
CONFIG_SENSORS_LIS3LV02D=m
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ICS932S401 is not set
CONFIG_ENCLOSURE_SERVICES=m
CONFIG_SGI_XP=m
CONFIG_HP_ILO=m
CONFIG_SGI_GRU=m
# CONFIG_SGI_GRU_DEBUG is not set
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
CONFIG_VMWARE_BALLOON=m
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
CONFIG_MISC_RTSX=m
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support

CONFIG_CB710_CORE=m
# CONFIG_CB710_DEBUG is not set
CONFIG_CB710_DEBUG_ASSUMPTIONS=y

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline

CONFIG_SENSORS_LIS3_I2C=m
CONFIG_ALTERA_STAPL=m
CONFIG_INTEL_MEI=m
CONFIG_INTEL_MEI_ME=m
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_INTEL_MEI_HDCP is not set
# CONFIG_INTEL_MEI_PXP is not set
CONFIG_VMWARE_VMCI=m
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_BCM_VK is not set
# CONFIG_MISC_ALCOR_PCI is not set
CONFIG_MISC_RTSX_PCI=m
# CONFIG_MISC_RTSX_USB is not set
# CONFIG_HABANA_AI is not set
# CONFIG_UACCE is not set
CONFIG_PVPANIC=y
# CONFIG_PVPANIC_MMIO is not set
# CONFIG_PVPANIC_PCI is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_BLK_DEV_BSG=y
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
CONFIG_SCSI_MPT3SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
CONFIG_SCSI_MPT3SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPI3MR is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_MYRB is not set
# CONFIG_SCSI_MYRS is not set
# CONFIG_VMWARE_PVSCSI is not set
# CONFIG_LIBFC is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FDOMAIN_PCI is not set
CONFIG_SCSI_ISCI=m
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_EFCT is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_VIRTIO is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
CONFIG_SCSI_DH=y
CONFIG_SCSI_DH_RDAC=y
CONFIG_SCSI_DH_HP_SW=y
CONFIG_SCSI_DH_EMC=y
CONFIG_SCSI_DH_ALUA=y
# end of SCSI device support

CONFIG_ATA=m
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_MOBILE_LPM_POLICY=0
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
# CONFIG_SATA_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
# CONFIG_MD_MULTIPATH is not set
CONFIG_MD_FAULTY=m
CONFIG_MD_CLUSTER=m
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=m
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=m
# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
CONFIG_DM_BIO_PRISON=m
CONFIG_DM_PERSISTENT_DATA=m
# CONFIG_DM_UNSTRIPED is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_THIN_PROVISIONING=m
CONFIG_DM_CACHE=m
CONFIG_DM_CACHE_SMQ=m
CONFIG_DM_WRITECACHE=m
# CONFIG_DM_EBS is not set
CONFIG_DM_ERA=m
# CONFIG_DM_CLONE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
# CONFIG_DM_MULTIPATH_HST is not set
# CONFIG_DM_MULTIPATH_IOA is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_DUST is not set
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=m
CONFIG_DM_VERITY=m
# CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG is not set
# CONFIG_DM_VERITY_FEC is not set
CONFIG_DM_SWITCH=m
CONFIG_DM_LOG_WRITES=m
CONFIG_DM_INTEGRITY=m
CONFIG_DM_AUDIT=y
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_TCM_USER2=m
CONFIG_LOOPBACK_TARGET=m
CONFIG_ISCSI_TARGET=m
# CONFIG_SBP_TARGET is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support

CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_AMT is not set
# CONFIG_MACSEC is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
CONFIG_VIRTIO_NET=m
# CONFIG_NLMON is not set
# CONFIG_NET_VRF is not set
# CONFIG_VSOCKMON is not set
# CONFIG_ARCNET is not set
CONFIG_ATM_DRIVERS=y
# CONFIG_ATM_DUMMY is not set
# CONFIG_ATM_TCP is not set
# CONFIG_ATM_LANAI is not set
# CONFIG_ATM_ENI is not set
# CONFIG_ATM_FIRESTREAM is not set
# CONFIG_ATM_ZATM is not set
# CONFIG_ATM_NICSTAR is not set
# CONFIG_ATM_IDT77252 is not set
# CONFIG_ATM_AMBASSADOR is not set
# CONFIG_ATM_HORIZON is not set
# CONFIG_ATM_IA is not set
# CONFIG_ATM_FORE200E is not set
# CONFIG_ATM_HE is not set
# CONFIG_ATM_SOLOS is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALACRITECH=y
# CONFIG_SLICOSS is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
# CONFIG_ENA_ETHERNET is not set
# CONFIG_NET_VENDOR_AMD is not set
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_AQTION is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ASIX=y
# CONFIG_SPI_AX88796C is not set
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_THUNDER_NIC_RGX is not set
CONFIG_CAVIUM_PTP=y
# CONFIG_LIQUIDIO is not set
# CONFIG_LIQUIDIO_VF is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
CONFIG_NET_VENDOR_CORTINA=y
# CONFIG_CX_ECAT is not set
CONFIG_NET_VENDOR_DAVICOM=y
# CONFIG_DM9051 is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
# CONFIG_NET_TULIP is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_ENGLEDER=y
# CONFIG_TSNEP is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_FUNGIBLE=y
# CONFIG_FUN_ETH is not set
CONFIG_NET_VENDOR_GOOGLE=y
# CONFIG_GVE is not set
CONFIG_NET_VENDOR_HUAWEI=y
# CONFIG_HINIC is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=y
CONFIG_E1000E=y
CONFIG_E1000E_HWTS=y
CONFIG_IGB=y
CONFIG_IGB_HWMON=y
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
CONFIG_IXGBE=y
CONFIG_IXGBE_HWMON=y
# CONFIG_IXGBE_DCB is not set
CONFIG_IXGBE_IPSEC=y
# CONFIG_IXGBEVF is not set
CONFIG_I40E=y
# CONFIG_I40E_DCB is not set
# CONFIG_I40EVF is not set
# CONFIG_ICE is not set
# CONFIG_FM10K is not set
CONFIG_IGC=y
CONFIG_NET_VENDOR_MICROSOFT=y
# CONFIG_JME is not set
CONFIG_NET_VENDOR_LITEX=y
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_PRESTERA is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROCHIP=y
# CONFIG_ENC28J60 is not set
# CONFIG_ENCX24J600 is not set
# CONFIG_LAN743X is not set
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETERION=y
# CONFIG_S2IO is not set
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP is not set
CONFIG_NET_VENDOR_NI=y
# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PACKET_ENGINES=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_PENSANDO=y
# CONFIG_IONIC is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCOM_EMAC is not set
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
CONFIG_R8169=y
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
# CONFIG_ROCKER is not set
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_PHY_SEL is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
# CONFIG_MSE102X is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_XILINX_EMACLITE is not set
# CONFIG_XILINX_AXI_EMAC is not set
# CONFIG_XILINX_LL_TEMAC is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set
CONFIG_FIXED_PHY=y

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
CONFIG_AX88796B_PHY=y
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=y
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_MICREL_KS8995MA is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_ACPI_MDIO=y
CONFIG_MDIO_DEVRES=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_THUNDER is not set

#
# MDIO Multiplexers
#

#
# PCS device drivers
#
# CONFIG_PCS_XPCS is not set
# end of PCS device drivers

# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
CONFIG_USB_RTL8152=y
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=y
CONFIG_USB_NET_AX8817X=y
CONFIG_USB_NET_AX88179_178A=y
# CONFIG_USB_NET_CDCETHER is not set
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
# CONFIG_USB_NET_RNDIS_HOST is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_USB_NET_AQC111 is not set
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K is not set
# CONFIG_ATH5K_PCI is not set
# CONFIG_ATH9K is not set
# CONFIG_ATH9K_HTC is not set
# CONFIG_CARL9170 is not set
# CONFIG_ATH6KL is not set
# CONFIG_AR5523 is not set
# CONFIG_WIL6210 is not set
# CONFIG_ATH10K is not set
# CONFIG_WCN36XX is not set
# CONFIG_ATH11K is not set
CONFIG_WLAN_VENDOR_ATMEL=y
# CONFIG_ATMEL is not set
# CONFIG_AT76C50X_USB is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_WLAN_VENDOR_CISCO=y
# CONFIG_AIRO is not set
CONFIG_WLAN_VENDOR_INTEL=y
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_IWL4965 is not set
# CONFIG_IWL3945 is not set
# CONFIG_IWLWIFI is not set
# CONFIG_IWLMEI is not set
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
CONFIG_WLAN_VENDOR_MARVELL=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MWIFIEX is not set
# CONFIG_MWL8K is not set
# CONFIG_WLAN_VENDOR_MEDIATEK is not set
CONFIG_WLAN_VENDOR_MICROCHIP=y
# CONFIG_WILC1000_SDIO is not set
# CONFIG_WILC1000_SPI is not set
CONFIG_WLAN_VENDOR_RALINK=y
# CONFIG_RT2X00 is not set
CONFIG_WLAN_VENDOR_REALTEK=y
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
# CONFIG_RTL8192SE is not set
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8723BE is not set
# CONFIG_RTL8188EE is not set
# CONFIG_RTL8192EE is not set
# CONFIG_RTL8821AE is not set
# CONFIG_RTL8192CU is not set
# CONFIG_RTL8XXXU is not set
# CONFIG_RTW88 is not set
# CONFIG_RTW89 is not set
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_RSI_91X is not set
CONFIG_WLAN_VENDOR_ST=y
# CONFIG_CW1200 is not set
CONFIG_WLAN_VENDOR_TI=y
# CONFIG_WL1251 is not set
# CONFIG_WL12XX is not set
# CONFIG_WL18XX is not set
# CONFIG_WLCORE is not set
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_ZD1211RW is not set
CONFIG_WLAN_VENDOR_QUANTENNA=y
# CONFIG_QTNFMAC_PCIE is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_VIRT_WIFI is not set
# CONFIG_WAN is not set
CONFIG_IEEE802154_DRIVERS=m
# CONFIG_IEEE802154_FAKELB is not set
# CONFIG_IEEE802154_AT86RF230 is not set
# CONFIG_IEEE802154_MRF24J40 is not set
# CONFIG_IEEE802154_CC2520 is not set
# CONFIG_IEEE802154_ATUSB is not set
# CONFIG_IEEE802154_ADF7242 is not set
# CONFIG_IEEE802154_CA8210 is not set
# CONFIG_IEEE802154_MCR20A is not set
# CONFIG_IEEE802154_HWSIM is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN

# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_SPARSEKMAP=m
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_APPLESPI is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y
CONFIG_MOUSE_PS2_SENTELIC=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
CONFIG_MOUSE_PS2_VMMOUSE=y
CONFIG_MOUSE_PS2_SMBUS=y
CONFIG_MOUSE_SERIAL=m
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
CONFIG_MOUSE_CYAPA=m
CONFIG_MOUSE_ELAN_I2C=m
CONFIG_MOUSE_ELAN_I2C_I2C=y
CONFIG_MOUSE_ELAN_I2C_SMBUS=y
CONFIG_MOUSE_VSXXXAA=m
# CONFIG_MOUSE_GPIO is not set
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
CONFIG_RMI4_CORE=m
CONFIG_RMI4_I2C=m
CONFIG_RMI4_SPI=m
CONFIG_RMI4_SMB=m
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=m
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
CONFIG_RMI4_F30=y
CONFIG_RMI4_F34=y
# CONFIG_RMI4_F3A is not set
CONFIG_RMI4_F55=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
CONFIG_SERIO_ALTERA_PS2=m
# CONFIG_SERIO_PS2MULT is not set
CONFIG_SERIO_ARC_PS2=m
# CONFIG_SERIO_GPIO_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=64
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_PERICOM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_BCM63XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
CONFIG_SERIAL_ARC=m
CONFIG_SERIAL_ARC_NR_PORTS=1
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_SYNCLINK_GT=m
CONFIG_N_HDLC=m
CONFIG_N_GSM=m
CONFIG_NOZOMI=m
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
# CONFIG_SERIAL_DEV_BUS is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_DMI_DECODE=y
CONFIG_IPMI_PLAT_DATA=y
CONFIG_IPMI_PANIC_EVENT=y
CONFIG_IPMI_PANIC_STRING=y
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_SSIF=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_INTEL=m
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_BA431 is not set
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=y
# CONFIG_HW_RANDOM_XIPHERA is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
CONFIG_DEVMEM=y
CONFIG_NVRAM=y
CONFIG_DEVPORT=y
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
# CONFIG_HPET_MMAP_DEFAULT is not set
CONFIG_HANGCHECK_TIMER=m
CONFIG_UV_MMTIMER=m
CONFIG_TCG_TPM=y
CONFIG_HW_RANDOM_TPM=y
CONFIG_TCG_TIS_CORE=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_SPI is not set
# CONFIG_TCG_TIS_I2C_CR50 is not set
CONFIG_TCG_TIS_I2C_ATMEL=m
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
CONFIG_TCG_CRB=y
# CONFIG_TCG_VTPM_PROXY is not set
CONFIG_TCG_TIS_ST33ZP24=m
CONFIG_TCG_TIS_ST33ZP24_I2C=m
# CONFIG_TCG_TIS_ST33ZP24_SPI is not set
CONFIG_TELCLOCK=m
# CONFIG_XILLYBUS is not set
# CONFIG_XILLYUSB is not set
# CONFIG_RANDOM_TRUST_CPU is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=m

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_REG is not set
CONFIG_I2C_MUX_MLXCPLD=m
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=y
CONFIG_I2C_ISCH=m
CONFIG_I2C_ISMT=m
CONFIG_I2C_PIIX4=m
CONFIG_I2C_NFORCE2=m
CONFIG_I2C_NFORCE2_S4985=m
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=m
CONFIG_I2C_VIA=m
CONFIG_I2C_VIAPRO=m

#
# ACPI drivers
#
CONFIG_I2C_SCMI=m

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=m
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=m
CONFIG_I2C_DESIGNWARE_BAYTRAIL=y
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=m
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_CP2615 is not set
CONFIG_I2C_PARPORT=m
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_MLXCPLD=m
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

CONFIG_I2C_STUB=m
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
# CONFIG_SPI_MEM is not set

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_BUTTERFLY is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_NXP_FLEXSPI is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_LM70_LLP is not set
# CONFIG_SPI_LANTIQ_SSC is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
CONFIG_SPI_LOOPBACK_TEST=m
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
CONFIG_SPI_DYNAMIC=y
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
CONFIG_PPS_CLIENT_LDISC=m
CONFIG_PPS_CLIENT_PARPORT=m
CONFIG_PPS_CLIENT_GPIO=m

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
# CONFIG_DP83640_PHY is not set
# CONFIG_PTP_1588_CLOCK_INES is not set
CONFIG_PTP_1588_CLOCK_KVM=m
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set
# end of PTP clock support

CONFIG_PINCTRL=y
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_SX150X is not set

#
# Intel pinctrl drivers
#
CONFIG_PINCTRL_BAYTRAIL=y
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_LYNXPOINT is not set
CONFIG_PINCTRL_INTEL=y
# CONFIG_PINCTRL_ALDERLAKE is not set
CONFIG_PINCTRL_BROXTON=m
CONFIG_PINCTRL_CANNONLAKE=m
CONFIG_PINCTRL_CEDARFORK=m
CONFIG_PINCTRL_DENVERTON=m
# CONFIG_PINCTRL_ELKHARTLAKE is not set
# CONFIG_PINCTRL_EMMITSBURG is not set
CONFIG_PINCTRL_GEMINILAKE=m
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_JASPERLAKE is not set
# CONFIG_PINCTRL_LAKEFIELD is not set
CONFIG_PINCTRL_LEWISBURG=m
CONFIG_PINCTRL_SUNRISEPOINT=m
# CONFIG_PINCTRL_TIGERLAKE is not set
# end of Intel pinctrl drivers

#
# Renesas pinctrl drivers
#
# end of Renesas pinctrl drivers

CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_EXAR is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
CONFIG_GPIO_ICH=m
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
# CONFIG_GPIO_WS16C48 is not set
# end of Port-mapped I/O GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# end of MFD GPIO expanders

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set
# end of PCI GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders

#
# USB GPIO expanders
#
# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

# CONFIG_W1 is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_RESTART is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_BD99954 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_ABITUGURU3=m
# CONFIG_SENSORS_AD7314 is not set
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
# CONFIG_SENSORS_ADM1177 is not set
CONFIG_SENSORS_ADM9240=m
CONFIG_SENSORS_ADT7X10=m
# CONFIG_SENSORS_ADT7310 is not set
CONFIG_SENSORS_ADT7410=m
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AQUACOMPUTER_D5NEXT is not set
# CONFIG_SENSORS_AS370 is not set
CONFIG_SENSORS_ASC7621=m
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
CONFIG_SENSORS_FAM15H_POWER=m
CONFIG_SENSORS_APPLESMC=m
CONFIG_SENSORS_ASB100=m
# CONFIG_SENSORS_ASPEED is not set
CONFIG_SENSORS_ATXP1=m
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DRIVETEMP is not set
CONFIG_SENSORS_DS620=m
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_DELL_SMM=m
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
# CONFIG_SENSORS_FTSTEUTATES is not set
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
CONFIG_SENSORS_I5500=m
CONFIG_SENSORS_CORETEMP=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_POWR1220 is not set
CONFIG_SENSORS_LINEAGE=m
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2992 is not set
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
# CONFIG_SENSORS_LTC4222 is not set
CONFIG_SENSORS_LTC4245=m
# CONFIG_SENSORS_LTC4260 is not set
CONFIG_SENSORS_LTC4261=m
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX127 is not set
CONFIG_SENSORS_MAX16065=m
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6642=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_MAX6697=m
# CONFIG_SENSORS_MAX31790 is not set
CONFIG_SENSORS_MCP3021=m
# CONFIG_SENSORS_MLXREG_FAN is not set
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
# CONFIG_SENSORS_ADCXX is not set
CONFIG_SENSORS_LM63=m
# CONFIG_SENSORS_LM70 is not set
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LM95234=m
CONFIG_SENSORS_LM95241=m
CONFIG_SENSORS_LM95245=m
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_NCT6683 is not set
CONFIG_SENSORS_NCT6775=m
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_NZXT_KRAKEN2 is not set
# CONFIG_SENSORS_NZXT_SMART2 is not set
CONFIG_SENSORS_PCF8591=m
CONFIG_PMBUS=m
CONFIG_SENSORS_PMBUS=m
# CONFIG_SENSORS_ADM1266 is not set
CONFIG_SENSORS_ADM1275=m
# CONFIG_SENSORS_BEL_PFE is not set
# CONFIG_SENSORS_BPA_RS600 is not set
# CONFIG_SENSORS_DELTA_AHE50DC_FAN is not set
# CONFIG_SENSORS_FSP_3Y is not set
# CONFIG_SENSORS_IBM_CFFPS is not set
# CONFIG_SENSORS_DPS920AB is not set
# CONFIG_SENSORS_INSPUR_IPSPS is not set
# CONFIG_SENSORS_IR35221 is not set
# CONFIG_SENSORS_IR36021 is not set
# CONFIG_SENSORS_IR38064 is not set
# CONFIG_SENSORS_IRPS5401 is not set
# CONFIG_SENSORS_ISL68137 is not set
CONFIG_SENSORS_LM25066=m
CONFIG_SENSORS_LTC2978=m
# CONFIG_SENSORS_LTC3815 is not set
# CONFIG_SENSORS_MAX15301 is not set
CONFIG_SENSORS_MAX16064=m
# CONFIG_SENSORS_MAX16601 is not set
# CONFIG_SENSORS_MAX20730 is not set
# CONFIG_SENSORS_MAX20751 is not set
# CONFIG_SENSORS_MAX31785 is not set
CONFIG_SENSORS_MAX34440=m
CONFIG_SENSORS_MAX8688=m
# CONFIG_SENSORS_MP2888 is not set
# CONFIG_SENSORS_MP2975 is not set
# CONFIG_SENSORS_MP5023 is not set
# CONFIG_SENSORS_PIM4328 is not set
# CONFIG_SENSORS_PM6764TR is not set
# CONFIG_SENSORS_PXE1610 is not set
# CONFIG_SENSORS_Q54SJ108A2 is not set
# CONFIG_SENSORS_STPDDC60 is not set
# CONFIG_SENSORS_TPS40422 is not set
# CONFIG_SENSORS_TPS53679 is not set
CONFIG_SENSORS_UCD9000=m
CONFIG_SENSORS_UCD9200=m
# CONFIG_SENSORS_XDPE122 is not set
CONFIG_SENSORS_ZL6100=m
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
# CONFIG_SENSORS_EMC2103 is not set
CONFIG_SENSORS_EMC6W201=m
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
CONFIG_SENSORS_SCH5636=m
# CONFIG_SENSORS_STTS751 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
CONFIG_SENSORS_ADS7828=m
# CONFIG_SENSORS_ADS7871 is not set
CONFIG_SENSORS_AMC6821=m
CONFIG_SENSORS_INA209=m
CONFIG_SENSORS_INA2XX=m
# CONFIG_SENSORS_INA238 is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_TMP513 is not set
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
# CONFIG_SENSORS_W83773G is not set
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
# CONFIG_SENSORS_W83795_FANCTRL is not set
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
# CONFIG_SENSORS_XGENE is not set

#
# ACPI drivers
#
CONFIG_SENSORS_ACPI_POWER=m
CONFIG_SENSORS_ATK0110=m
# CONFIG_SENSORS_ASUS_WMI is not set
# CONFIG_SENSORS_ASUS_WMI_EC is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_BANG_BANG=y
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set

#
# Intel thermal drivers
#
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# end of ACPI INT340X thermal drivers

CONFIG_INTEL_PCH_THERMAL=m
# CONFIG_INTEL_TCC_COOLING is not set
# CONFIG_INTEL_MENLOW is not set
# end of Intel thermal drivers

CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
CONFIG_WATCHDOG_SYSFS=y
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
CONFIG_WDAT_WDT=m
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_MLX_WDT is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
CONFIG_ALIM1535_WDT=m
CONFIG_ALIM7101_WDT=m
# CONFIG_EBC_C384_WDT is not set
CONFIG_F71808E_WDT=m
# CONFIG_SP5100_TCO is not set
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=m
CONFIG_IBMASR=m
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=y
CONFIG_IE6XX_WDT=m
CONFIG_ITCO_WDT=y
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
CONFIG_HP_WATCHDOG=m
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
CONFIG_NV_TCO=m
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
CONFIG_SMSC_SCH311X_WDT=m
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_TQMX86_WDT is not set
CONFIG_VIA_WDT=m
CONFIG_W83627HF_WDT=m
CONFIG_W83877F_WDT=m
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=m
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
CONFIG_INTEL_MEI_WDT=m
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
# CONFIG_MEN_A21_WDT is not set

#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
CONFIG_WDTPCI=m

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
CONFIG_BCMA=m
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_PCI=y
# CONFIG_BCMA_HOST_SOC is not set
CONFIG_BCMA_DRIVER_PCI=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
CONFIG_BCMA_DRIVER_GPIO=y
# CONFIG_BCMA_DEBUG is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
CONFIG_LPC_ICH=y
CONFIG_LPC_SCH=m
CONFIG_MFD_INTEL_LPSS=y
CONFIG_MFD_INTEL_LPSS_ACPI=y
CONFIG_MFD_INTEL_LPSS_PCI=y
# CONFIG_MFD_INTEL_PMC_BXT is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=m
CONFIG_MFD_SM501_GPIO=y
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TQMX86 is not set
CONFIG_MFD_VX855=m
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_INTEL_M10_BMC is not set
# end of Multifunction device drivers

# CONFIG_REGULATOR is not set
CONFIG_RC_CORE=m
CONFIG_RC_MAP=m
CONFIG_LIRC=y
CONFIG_RC_DECODERS=y
CONFIG_IR_NEC_DECODER=m
CONFIG_IR_RC5_DECODER=m
CONFIG_IR_RC6_DECODER=m
CONFIG_IR_JVC_DECODER=m
CONFIG_IR_SONY_DECODER=m
CONFIG_IR_SANYO_DECODER=m
# CONFIG_IR_SHARP_DECODER is not set
CONFIG_IR_MCE_KBD_DECODER=m
# CONFIG_IR_XMP_DECODER is not set
CONFIG_IR_IMON_DECODER=m
# CONFIG_IR_RCMM_DECODER is not set
CONFIG_RC_DEVICES=y
# CONFIG_RC_ATI_REMOTE is not set
CONFIG_IR_ENE=m
# CONFIG_IR_IMON is not set
# CONFIG_IR_IMON_RAW is not set
# CONFIG_IR_MCEUSB is not set
CONFIG_IR_ITE_CIR=m
CONFIG_IR_FINTEK=m
CONFIG_IR_NUVOTON=m
# CONFIG_IR_REDRAT3 is not set
# CONFIG_IR_STREAMZAP is not set
CONFIG_IR_WINBOND_CIR=m
# CONFIG_IR_IGORPLUGUSB is not set
# CONFIG_IR_IGUANA is not set
# CONFIG_IR_TTUSBIR is not set
# CONFIG_RC_LOOPBACK is not set
CONFIG_IR_SERIAL=m
CONFIG_IR_SERIAL_TRANSMITTER=y
# CONFIG_RC_XBOX_DVD is not set
# CONFIG_IR_TOY is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

CONFIG_MEDIA_SUPPORT=m
CONFIG_MEDIA_SUPPORT_FILTER=y
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y

#
# Media device types
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_SDR_SUPPORT is not set
# CONFIG_MEDIA_PLATFORM_SUPPORT is not set
# CONFIG_MEDIA_TEST_SUPPORT is not set
# end of Media device types

#
# Media drivers
#

#
# Drivers filtered as selected at 'Filter media drivers'
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
# end of Media drivers

CONFIG_MEDIA_HIDE_ANCILLARY_SUBDRV=y

#
# Media ancillary drivers
#

#
# Media SPI Adapters
#
# end of Media SPI Adapters
# end of Media ancillary drivers

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_INTEL_GTT=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=64
CONFIG_VGA_SWITCHEROO=y
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_DP_AUX_CHARDEV=y
CONFIG_DRM_DEBUG_SELFTEST=m
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
# CONFIG_DRM_DP_CEC is not set
CONFIG_DRM_TTM=m
CONFIG_DRM_VRAM_HELPER=m
CONFIG_DRM_TTM_HELPER=m
CONFIG_DRM_GEM_SHMEM_HELPER=m

#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
CONFIG_DRM_I2C_SIL164=m
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_I2C_NXP_TDA9950 is not set
# end of I2C encoder or helper chips

#
# ARM devices
#
# end of ARM devices

# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_FORCE_PROBE=""
CONFIG_DRM_I915_CAPTURE_ERROR=y
CONFIG_DRM_I915_COMPRESS_ERROR=y
CONFIG_DRM_I915_USERPTR=y
CONFIG_DRM_I915_GVT=y
# CONFIG_DRM_I915_GVT_KVMGT is not set
CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VKMS is not set
# CONFIG_DRM_VMWGFX is not set
CONFIG_DRM_GMA500=m
# CONFIG_DRM_UDL is not set
CONFIG_DRM_AST=m
CONFIG_DRM_MGAG200=m
CONFIG_DRM_QXL=m
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN is not set
# CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set
# end of Display Panels

CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# end of Display Interface Bridges

# CONFIG_DRM_ETNAVIV is not set
CONFIG_DRM_BOCHS=m
CONFIG_DRM_CIRRUS_QEMU=m
# CONFIG_DRM_GM12U320 is not set
# CONFIG_DRM_SIMPLEDRM is not set
# CONFIG_TINYDRM_HX8357D is not set
# CONFIG_TINYDRM_ILI9163 is not set
# CONFIG_TINYDRM_ILI9225 is not set
# CONFIG_TINYDRM_ILI9341 is not set
# CONFIG_TINYDRM_ILI9486 is not set
# CONFIG_TINYDRM_MI0283QT is not set
# CONFIG_TINYDRM_REPAPER is not set
# CONFIG_TINYDRM_ST7586 is not set
# CONFIG_TINYDRM_ST7735R is not set
# CONFIG_DRM_VBOXVIDEO is not set
# CONFIG_DRM_GUD is not set
# CONFIG_DRM_LEGACY is not set
CONFIG_DRM_EXPORT_FOR_TESTS=y
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
CONFIG_DRM_NOMODESET=y
CONFIG_DRM_LIB_RANDOM=y
CONFIG_DRM_PRIVACY_SCREEN=y

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_MODE_HELPERS is not set
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SM501 is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SSD1307 is not set
# CONFIG_FB_SM712 is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_L4F00242T03 is not set
# CONFIG_LCD_LMS283GF05 is not set
# CONFIG_LCD_LTV350QV is not set
# CONFIG_LCD_ILI922X is not set
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
CONFIG_LCD_PLATFORM=m
# CONFIG_LCD_AMS369FG06 is not set
# CONFIG_LCD_LMS501KF03 is not set
# CONFIG_LCD_HX8357 is not set
# CONFIG_LCD_OTM3225A is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
# CONFIG_BACKLIGHT_PWM is not set
CONFIG_BACKLIGHT_APPLE=m
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
CONFIG_BACKLIGHT_LP855X=m
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# end of Backlight & LCD device support

CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
# end of Console display driver support

CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
# end of Graphics support

# CONFIG_SOUND is not set

#
# HID support
#
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
CONFIG_UHID=m
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACCUTOUCH is not set
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=m
# CONFIG_HID_APPLEIR is not set
CONFIG_HID_ASUS=m
CONFIG_HID_AUREAL=m
CONFIG_HID_BELKIN=m
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_BIGBEN_FF is not set
CONFIG_HID_CHERRY=m
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
CONFIG_HID_CMEDIA=m
# CONFIG_HID_CP2112 is not set
# CONFIG_HID_CREATIVE_SB0540 is not set
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
# CONFIG_DRAGONRISE_FF is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELAN is not set
CONFIG_HID_ELECOM=m
# CONFIG_HID_ELO is not set
CONFIG_HID_EZKEY=m
# CONFIG_HID_FT260 is not set
CONFIG_HID_GEMBIRD=m
CONFIG_HID_GFRM=m
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_GT683R is not set
CONFIG_HID_KEYTOUCH=m
CONFIG_HID_KYE=m
# CONFIG_HID_UCLOGIC is not set
CONFIG_HID_WALTOP=m
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_XIAOMI is not set
CONFIG_HID_GYRATION=m
CONFIG_HID_ICADE=m
CONFIG_HID_ITE=m
CONFIG_HID_JABRA=m
CONFIG_HID_TWINHAN=m
CONFIG_HID_KENSINGTON=m
CONFIG_HID_LCPOWER=m
CONFIG_HID_LED=m
CONFIG_HID_LENOVO=m
# CONFIG_HID_LETSKETCH is not set
CONFIG_HID_LOGITECH=m
CONFIG_HID_LOGITECH_DJ=m
CONFIG_HID_LOGITECH_HIDPP=m
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
CONFIG_HID_MAGICMOUSE=y
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_REDRAGON is not set
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MONTEREY=m
CONFIG_HID_MULTITOUCH=m
# CONFIG_HID_NINTENDO is not set
CONFIG_HID_NTI=m
# CONFIG_HID_NTRIG is not set
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
# CONFIG_PANTHERLORD_FF is not set
# CONFIG_HID_PENMOUNT is not set
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
CONFIG_HID_PICOLCD_CIR=y
CONFIG_HID_PLANTRONICS=m
CONFIG_HID_PRIMAX=m
# CONFIG_HID_RETRODE is not set
# CONFIG_HID_ROCCAT is not set
CONFIG_HID_SAITEK=m
CONFIG_HID_SAMSUNG=m
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SONY is not set
CONFIG_HID_SPEEDLINK=m
# CONFIG_HID_STEAM is not set
CONFIG_HID_STEELSERIES=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_RMI=m
CONFIG_HID_GREENASIA=m
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=m
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TIVO=m
CONFIG_HID_TOPSEED=m
CONFIG_HID_THINGM=m
CONFIG_HID_THRUSTMASTER=m
# CONFIG_THRUSTMASTER_FF is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_U2FZERO is not set
# CONFIG_HID_WACOM is not set
CONFIG_HID_WIIMOTE=m
CONFIG_HID_XINMO=m
CONFIG_HID_ZEROPLUS=m
# CONFIG_ZEROPLUS_FF is not set
CONFIG_HID_ZYDACRON=m
CONFIG_HID_SENSOR_HUB=y
CONFIG_HID_SENSOR_CUSTOM_SENSOR=m
CONFIG_HID_ALPS=m
# CONFIG_HID_MCP2221 is not set
# end of Special HID drivers

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
# end of USB HID support

#
# I2C HID support
#
# CONFIG_I2C_HID_ACPI is not set
# end of I2C HID support

#
# Intel ISH HID support
#
CONFIG_INTEL_ISH_HID=m
# CONFIG_INTEL_ISH_FIRMWARE_DOWNLOADER is not set
# end of Intel ISH HID support

#
# AMD SFH HID Support
#
# CONFIG_AMD_SFH_HID is not set
# end of AMD SFH HID Support
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_FEW_INIT_RETRIES is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_PRODUCTLIST is not set
CONFIG_USB_LEDS_TRIGGER_USBPORT=y
CONFIG_USB_AUTOSUSPEND_DELAY=2
CONFIG_USB_MON=y

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=y
# CONFIG_USB_XHCI_DBGCAP is not set
CONFIG_USB_XHCI_PCI=y
# CONFIG_USB_XHCI_PCI_RENESAS is not set
# CONFIG_USB_XHCI_PLATFORM is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_FSL is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_BCMA is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_CDNS_SUPPORT is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
# CONFIG_USB_SERIAL_SIMPLE is not set
# CONFIG_USB_SERIAL_AIRCABLE is not set
# CONFIG_USB_SERIAL_ARK3116 is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_CH341 is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_CP210X is not set
# CONFIG_USB_SERIAL_CYPRESS_M8 is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
# CONFIG_USB_SERIAL_F81232 is not set
# CONFIG_USB_SERIAL_F8153X is not set
# CONFIG_USB_SERIAL_GARMIN is not set
# CONFIG_USB_SERIAL_IPW is not set
# CONFIG_USB_SERIAL_IUU is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_KOBIL_SCT is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_METRO is not set
# CONFIG_USB_SERIAL_MOS7720 is not set
# CONFIG_USB_SERIAL_MOS7840 is not set
# CONFIG_USB_SERIAL_MXUPORT is not set
# CONFIG_USB_SERIAL_NAVMAN is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_OTI6858 is not set
# CONFIG_USB_SERIAL_QCAUX is not set
# CONFIG_USB_SERIAL_QUALCOMM is not set
# CONFIG_USB_SERIAL_SPCP8X5 is not set
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set
# CONFIG_USB_SERIAL_SYMBOL is not set
# CONFIG_USB_SERIAL_TI is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_OPTION is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_SERIAL_OPTICON is not set
# CONFIG_USB_SERIAL_XSENS_MT is not set
# CONFIG_USB_SERIAL_WISHBONE is not set
# CONFIG_USB_SERIAL_SSU100 is not set
# CONFIG_USB_SERIAL_QT2 is not set
# CONFIG_USB_SERIAL_UPD78F0730 is not set
# CONFIG_USB_SERIAL_XR is not set
CONFIG_USB_SERIAL_DEBUG=m

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_APPLE_MFI_FASTCHARGE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set
# CONFIG_USB_ATM is not set

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# end of USB Physical Layer drivers

# CONFIG_USB_GADGET is not set
CONFIG_TYPEC=y
# CONFIG_TYPEC_TCPM is not set
CONFIG_TYPEC_UCSI=y
# CONFIG_UCSI_CCG is not set
CONFIG_UCSI_ACPI=y
# CONFIG_TYPEC_TPS6598X is not set
# CONFIG_TYPEC_STUSB160X is not set

#
# USB Type-C Multiplexer/DeMultiplexer Switch support
#
# CONFIG_TYPEC_MUX_PI3USB30532 is not set
# end of USB Type-C Multiplexer/DeMultiplexer Switch support

#
# USB Type-C Alternate Mode drivers
#
# CONFIG_TYPEC_DP_ALTMODE is not set
# end of USB Type-C Alternate Mode drivers

# CONFIG_USB_ROLE_SWITCH is not set
CONFIG_MMC=m
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
CONFIG_MMC_SDHCI_PCI=m
CONFIG_MMC_RICOH_MMC=y
CONFIG_MMC_SDHCI_ACPI=m
CONFIG_MMC_SDHCI_PLTFM=m
# CONFIG_MMC_SDHCI_F_SDH30 is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
# CONFIG_MMC_REALTEK_PCI is not set
CONFIG_MMC_CQHCI=m
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MMC_SDHCI_XENON is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
# CONFIG_LEDS_APU is not set
CONFIG_LEDS_LM3530=m
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=m
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
CONFIG_LEDS_CLEVO_MAIL=m
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_BD2802 is not set
CONFIG_LEDS_INTEL_SS4200=m
CONFIG_LEDS_LT3593=m
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
CONFIG_LEDS_MLXCPLD=m
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set

#
# Flash and Torch LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_ONESHOT=m
# CONFIG_LEDS_TRIGGER_DISK is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
CONFIG_LEDS_TRIGGER_GPIO=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=m
CONFIG_LEDS_TRIGGER_CAMERA=m
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
CONFIG_LEDS_TRIGGER_AUDIO=m
# CONFIG_LEDS_TRIGGER_TTY is not set

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_GHES=y
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_IE31200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I5000=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
CONFIG_EDAC_SBRIDGE=m
CONFIG_EDAC_SKX=m
# CONFIG_EDAC_I10NM is not set
CONFIG_EDAC_PND2=m
# CONFIG_EDAC_IGEN6 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_SYSTOHC is not set
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_LIB_KUNIT_TEST=m
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
CONFIG_RTC_DRV_DS1307=m
# CONFIG_RTC_DRV_DS1307_CENTURY is not set
CONFIG_RTC_DRV_DS1374=m
# CONFIG_RTC_DRV_DS1374_WDT is not set
CONFIG_RTC_DRV_DS1672=m
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
CONFIG_RTC_DRV_ISL12022=m
CONFIG_RTC_DRV_X1205=m
CONFIG_RTC_DRV_PCF8523=m
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_M41T80=m
CONFIG_RTC_DRV_M41T80_WDT=y
CONFIG_RTC_DRV_BQ32K=m
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=m
# CONFIG_RTC_DRV_RX8010 is not set
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
CONFIG_RTC_DRV_EM3027=m
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
CONFIG_RTC_DRV_RX4581=m
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
CONFIG_RTC_DRV_DS3232=m
CONFIG_RTC_DRV_DS3232_HWMON=y
# CONFIG_RTC_DRV_PCF2127 is not set
CONFIG_RTC_DRV_RV3029C2=m
# CONFIG_RTC_DRV_RV3029_HWMON is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_DS2404=m
CONFIG_RTC_DRV_STK17TA8=m
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
CONFIG_RTC_DRV_MSM6242=m
CONFIG_RTC_DRV_BQ4802=m
CONFIG_RTC_DRV_RP5C01=m
CONFIG_RTC_DRV_V3020=m

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
# CONFIG_ALTERA_MSGDMA is not set
CONFIG_INTEL_IDMA64=m
# CONFIG_INTEL_IDXD is not set
# CONFIG_INTEL_IDXD_COMPAT is not set
CONFIG_INTEL_IOATDMA=m
# CONFIG_PLX_DMA is not set
# CONFIG_AMD_PTDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=y
CONFIG_DW_DMAC=m
CONFIG_DW_DMAC_PCI=y
# CONFIG_DW_EDMA is not set
# CONFIG_DW_EDMA_PCIE is not set
CONFIG_HSU_DMA=y
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
CONFIG_DMATEST=m
CONFIG_DMA_ENGINE_RAID=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_UDMABUF is not set
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options

CONFIG_DCA=m
# CONFIG_AUXDISPLAY is not set
# CONFIG_PANEL is not set
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
# CONFIG_UIO_DMEM_GENIRQ is not set
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
# CONFIG_UIO_PRUSS is not set
# CONFIG_UIO_MF624 is not set
CONFIG_VFIO=m
CONFIG_VFIO_IOMMU_TYPE1=m
CONFIG_VFIO_VIRQFD=m
CONFIG_VFIO_NOIOMMU=y
CONFIG_VFIO_PCI_CORE=m
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI=m
# CONFIG_VFIO_PCI_VGA is not set
# CONFIG_VFIO_PCI_IGD is not set
CONFIG_VFIO_MDEV=m
CONFIG_IRQ_BYPASS_MANAGER=m
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
# CONFIG_VIRTIO_PMEM is not set
CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_MEM=m
CONFIG_VIRTIO_INPUT=m
# CONFIG_VIRTIO_MMIO is not set
CONFIG_VIRTIO_DMA_SHARED_BUFFER=m
# CONFIG_VDPA is not set
CONFIG_VHOST_IOTLB=m
CONFIG_VHOST=m
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=m
# CONFIG_VHOST_SCSI is not set
CONFIG_VHOST_VSOCK=m
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACPI_WMI=m
CONFIG_WMI_BMOF=m
# CONFIG_HUAWEI_WMI is not set
# CONFIG_UV_SYSFS is not set
CONFIG_MXM_WMI=m
# CONFIG_PEAQ_WMI is not set
# CONFIG_NVIDIA_WMI_EC_BACKLIGHT is not set
# CONFIG_XIAOMI_WMI is not set
# CONFIG_GIGABYTE_WMI is not set
# CONFIG_YOGABOOK_WMI is not set
CONFIG_ACERHDF=m
# CONFIG_ACER_WIRELESS is not set
CONFIG_ACER_WMI=m
# CONFIG_AMD_PMC is not set
# CONFIG_ADV_SWBUTTON is not set
CONFIG_APPLE_GMUX=m
CONFIG_ASUS_LAPTOP=m
# CONFIG_ASUS_WIRELESS is not set
CONFIG_ASUS_WMI=m
CONFIG_ASUS_NB_WMI=m
# CONFIG_ASUS_TF103C_DOCK is not set
# CONFIG_MERAKI_MX100 is not set
CONFIG_EEEPC_LAPTOP=m
CONFIG_EEEPC_WMI=m
# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
CONFIG_AMILO_RFKILL=m
CONFIG_FUJITSU_LAPTOP=m
CONFIG_FUJITSU_TABLET=m
# CONFIG_GPD_POCKET_FAN is not set
CONFIG_HP_ACCEL=m
# CONFIG_WIRELESS_HOTKEY is not set
CONFIG_HP_WMI=m
# CONFIG_IBM_RTL is not set
CONFIG_IDEAPAD_LAPTOP=m
CONFIG_SENSORS_HDAPS=m
CONFIG_THINKPAD_ACPI=m
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
# CONFIG_THINKPAD_LMI is not set
# CONFIG_INTEL_ATOMISP2_PM is not set
# CONFIG_INTEL_SAR_INT1092 is not set
CONFIG_INTEL_PMC_CORE=m

#
# Intel Speed Select Technology interface support
#
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
# end of Intel Speed Select Technology interface support

CONFIG_INTEL_WMI=y
# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
CONFIG_INTEL_WMI_THUNDERBOLT=m
CONFIG_INTEL_HID_EVENT=m
CONFIG_INTEL_VBTN=m
# CONFIG_INTEL_INT0002_VGPIO is not set
CONFIG_INTEL_OAKTRAIL=m
# CONFIG_INTEL_ISHTP_ECLITE is not set
# CONFIG_INTEL_PUNIT_IPC is not set
CONFIG_INTEL_RST=m
# CONFIG_INTEL_SMARTCONNECT is not set
CONFIG_INTEL_TURBO_MAX_3=y
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
# CONFIG_INTEL_VSEC is not set
CONFIG_MSI_LAPTOP=m
CONFIG_MSI_WMI=m
# CONFIG_PCENGINES_APU2 is not set
# CONFIG_BARCO_P50_GPIO is not set
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_SAMSUNG_Q10=m
CONFIG_TOSHIBA_BT_RFKILL=m
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
CONFIG_ACPI_CMPC=m
CONFIG_COMPAL_LAPTOP=m
# CONFIG_LG_LAPTOP is not set
CONFIG_PANASONIC_LAPTOP=m
CONFIG_SONY_LAPTOP=m
CONFIG_SONYPI_COMPAT=y
# CONFIG_SYSTEM76_ACPI is not set
CONFIG_TOPSTAR_LAPTOP=m
# CONFIG_I2C_MULTI_INSTANTIATE is not set
CONFIG_MLX_PLATFORM=m
CONFIG_INTEL_IPS=m
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_SIEMENS_SIMATIC_IPC is not set
CONFIG_PMC_ATOM=y
# CONFIG_CHROME_PLATFORMS is not set
CONFIG_MELLANOX_PLATFORM=y
CONFIG_MLXREG_HOTPLUG=m
# CONFIG_MLXREG_IO is not set
# CONFIG_MLXREG_LC is not set
CONFIG_SURFACE_PLATFORMS=y
# CONFIG_SURFACE3_WMI is not set
# CONFIG_SURFACE_3_POWER_OPREGION is not set
# CONFIG_SURFACE_GPE is not set
# CONFIG_SURFACE_HOTPLUG is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_LAN966X is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_XILINX_VCU is not set
CONFIG_HWSPINLOCK=y

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers

CONFIG_MAILBOX=y
CONFIG_PCC=y
# CONFIG_ALTERA_MBOX is not set
CONFIG_IOMMU_IOVA=y
CONFIG_IOASID=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_IOMMU_DMA=y
# CONFIG_AMD_IOMMU is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_SVM is not set
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON=y
CONFIG_IRQ_REMAP=y
# CONFIG_VIRTIO_IOMMU is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
CONFIG_NTB=m
# CONFIG_NTB_MSI is not set
# CONFIG_NTB_AMD is not set
# CONFIG_NTB_IDT is not set
# CONFIG_NTB_INTEL is not set
# CONFIG_NTB_EPF is not set
# CONFIG_NTB_SWITCHTEC is not set
# CONFIG_NTB_PINGPONG is not set
# CONFIG_NTB_TOOL is not set
# CONFIG_NTB_PERF is not set
# CONFIG_NTB_TRANSPORT is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
# CONFIG_PWM_DWC is not set
CONFIG_PWM_LPSS=m
CONFIG_PWM_LPSS_PCI=m
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_PCA9685 is not set

#
# IRQ chip support
#
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# end of PHY Subsystem

CONFIG_POWERCAP=y
CONFIG_INTEL_RAPL_CORE=m
CONFIG_INTEL_RAPL=m
# CONFIG_IDLE_INJECT is not set
# CONFIG_DTPM is not set
# CONFIG_MCB is not set

#
# Performance monitor support
#
# end of Performance monitor support

CONFIG_RAS=y
# CONFIG_RAS_CEC is not set
# CONFIG_USB4 is not set

#
# Android
#
# CONFIG_ANDROID is not set
# end of Android

CONFIG_LIBNVDIMM=m
CONFIG_BLK_DEV_PMEM=m
CONFIG_ND_BLK=m
CONFIG_ND_CLAIM=y
CONFIG_ND_BTT=m
CONFIG_BTT=y
CONFIG_ND_PFN=m
CONFIG_NVDIMM_PFN=y
CONFIG_NVDIMM_DAX=y
CONFIG_NVDIMM_KEYS=y
CONFIG_DAX=y
CONFIG_DEV_DAX=m
CONFIG_DEV_DAX_PMEM=m
CONFIG_DEV_DAX_KMEM=m
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_RMEM is not set

#
# HW tracing support
#
CONFIG_STM=m
# CONFIG_STM_PROTO_BASIC is not set
# CONFIG_STM_PROTO_SYS_T is not set
CONFIG_STM_DUMMY=m
CONFIG_STM_SOURCE_CONSOLE=m
CONFIG_STM_SOURCE_HEARTBEAT=m
CONFIG_STM_SOURCE_FTRACE=m
CONFIG_INTEL_TH=m
CONFIG_INTEL_TH_PCI=m
CONFIG_INTEL_TH_ACPI=m
CONFIG_INTEL_TH_GTH=m
CONFIG_INTEL_TH_STH=m
CONFIG_INTEL_TH_MSU=m
CONFIG_INTEL_TH_PTI=m
# CONFIG_INTEL_TH_DEBUG is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_TEE is not set
# CONFIG_UNISYS_VISORBUS is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_MOST is not set
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_EXT4_KUNIT_TESTS=m
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_SUPPORT_V4=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
CONFIG_XFS_ONLINE_SCRUB=y
# CONFIG_XFS_ONLINE_REPAIR is not set
CONFIG_XFS_DEBUG=y
CONFIG_XFS_ASSERT_FATAL=y
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_BTRFS_FS_REF_VERIFY is not set
# CONFIG_NILFS2_FS is not set
CONFIG_F2FS_FS=m
CONFIG_F2FS_STAT_FS=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_FS_POSIX_ACL=y
# CONFIG_F2FS_FS_SECURITY is not set
# CONFIG_F2FS_CHECK_FS is not set
# CONFIG_F2FS_FAULT_INJECTION is not set
# CONFIG_F2FS_FS_COMPRESSION is not set
CONFIG_F2FS_IOSTAT=y
CONFIG_FS_DAX=y
CONFIG_FS_DAX_PMD=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_ENCRYPTION_ALGS=y
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
# CONFIG_VIRTIO_FS is not set
CONFIG_OVERLAY_FS=m
# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set
# CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW is not set
# CONFIG_OVERLAY_FS_INDEX is not set
# CONFIG_OVERLAY_FS_XINO_AUTO is not set
# CONFIG_OVERLAY_FS_METACOPY is not set

#
# Caches
#
CONFIG_NETFS_SUPPORT=m
CONFIG_NETFS_STATS=y
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_DEBUG is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_ERROR_INJECTION is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
# CONFIG_FAT_DEFAULT_UTF8 is not set
CONFIG_FAT_KUNIT_TEST=m
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_VMCORE_DEVICE_DUMP=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_TMPFS_INODE64 is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_HUGETLB_PAGE_FREE_VMEMMAP=y
# CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON is not set
CONFIG_MEMFD_CREATE=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=y
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=m
CONFIG_CRAMFS_BLOCKDEV=y
CONFIG_SQUASHFS=m
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
# CONFIG_SQUASHFS_DECOMP_SINGLE is not set
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZ4 is not set
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
# CONFIG_SQUASHFS_ZSTD is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
CONFIG_PSTORE_DEFLATE_COMPRESS=y
# CONFIG_PSTORE_LZO_COMPRESS is not set
# CONFIG_PSTORE_LZ4_COMPRESS is not set
# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
# CONFIG_PSTORE_842_COMPRESS is not set
# CONFIG_PSTORE_ZSTD_COMPRESS is not set
CONFIG_PSTORE_COMPRESS=y
CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
# CONFIG_PSTORE_BLK is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EROFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
# CONFIG_NFS_V2 is not set
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DEBUG=y
CONFIG_NFS_DISABLE_UDP_SUPPORT=y
# CONFIG_NFS_V4_2_READ_PLUS is not set
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_PNFS=y
# CONFIG_NFSD_BLOCKLAYOUT is not set
CONFIG_NFSD_SCSILAYOUT=y
# CONFIG_NFSD_FLEXFILELAYOUT is not set
# CONFIG_NFSD_V4_2_INTER_SSC is not set
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_NFS_V4_2_SSC_HELPER=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES is not set
CONFIG_SUNRPC_DEBUG=y
CONFIG_CEPH_FS=m
# CONFIG_CEPH_FSCACHE is not set
CONFIG_CEPH_FS_POSIX_ACL=y
# CONFIG_CEPH_FS_SECURITY_LABEL is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS2=y
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_CIFS_SWN_UPCALL is not set
# CONFIG_CIFS_FSCACHE is not set
# CONFIG_SMB_SERVER is not set
CONFIG_SMBFS_COMMON=m
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=m
CONFIG_NLS_MAC_CELTIC=m
CONFIG_NLS_MAC_CENTEURO=m
CONFIG_NLS_MAC_CROATIAN=m
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=m
CONFIG_NLS_MAC_ICELAND=m
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
CONFIG_NLS_MAC_TURKISH=m
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
CONFIG_PERSISTENT_KEYRINGS=y
CONFIG_TRUSTED_KEYS=y
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_KEY_DH_OPERATIONS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITY_WRITABLE_HOOKS=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_PAGE_TABLE_ISOLATION=y
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
CONFIG_INTEL_TXT=y
CONFIG_LSM_MMAP_MIN_ADDR=65535
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_FORTIFY_SOURCE=y
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS=9
CONFIG_SECURITY_SELINUX_SID2STR_CACHE_SIZE=256
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_LOADPIN is not set
CONFIG_SECURITY_YAMA=y
# CONFIG_SECURITY_SAFESETID is not set
# CONFIG_SECURITY_LOCKDOWN_LSM is not set
# CONFIG_SECURITY_LANDLOCK is not set
CONFIG_INTEGRITY=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_TRUSTED_KEYRING=y
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_AUDIT=y
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_LSM_RULES=y
# CONFIG_IMA_TEMPLATE is not set
CONFIG_IMA_NG_TEMPLATE=y
# CONFIG_IMA_SIG_TEMPLATE is not set
CONFIG_IMA_DEFAULT_TEMPLATE="ima-ng"
CONFIG_IMA_DEFAULT_HASH_SHA1=y
# CONFIG_IMA_DEFAULT_HASH_SHA256 is not set
# CONFIG_IMA_DEFAULT_HASH_SHA512 is not set
CONFIG_IMA_DEFAULT_HASH="sha1"
# CONFIG_IMA_WRITE_POLICY is not set
# CONFIG_IMA_READ_POLICY is not set
CONFIG_IMA_APPRAISE=y
# CONFIG_IMA_ARCH_POLICY is not set
# CONFIG_IMA_APPRAISE_BUILD_POLICY is not set
CONFIG_IMA_APPRAISE_BOOTPARAM=y
# CONFIG_IMA_APPRAISE_MODSIG is not set
CONFIG_IMA_TRUSTED_KEYRING=y
# CONFIG_IMA_BLACKLIST_KEYRING is not set
# CONFIG_IMA_LOAD_X509 is not set
CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS=y
CONFIG_IMA_QUEUE_EARLY_BOOT_KEYS=y
# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
# CONFIG_IMA_DISABLE_HTABLE is not set
CONFIG_EVM=y
CONFIG_EVM_ATTR_FSUUID=y
# CONFIG_EVM_ADD_XATTRS is not set
# CONFIG_EVM_LOAD_X509 is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,selinux,smack,tomoyo,apparmor,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_INIT_STACK_NONE=y
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
# end of Memory initialization
# end of Kernel hardening options
# end of Security options

CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=m
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECC=m
CONFIG_CRYPTO_ECDH=m
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
# CONFIG_CRYPTO_CURVE25519_X86 is not set

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CHACHA20POLY1305=m
# CONFIG_CRYPTO_AEGIS128 is not set
# CONFIG_CRYPTO_AEGIS128_AESNI_SSE2 is not set
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_OFB is not set
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
# CONFIG_CRYPTO_KEYWRAP is not set
# CONFIG_CRYPTO_NHPOLY1305_SSE2 is not set
# CONFIG_CRYPTO_NHPOLY1305_AVX2 is not set
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_ESSIV=m

#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRC32_PCLMUL=m
CONFIG_CRYPTO_XXHASH=m
CONFIG_CRYPTO_BLAKE2B=m
# CONFIG_CRYPTO_BLAKE2S is not set
# CONFIG_CRYPTO_BLAKE2S_X86 is not set
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRCT10DIF_PCLMUL=m
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=m
CONFIG_CRYPTO_POLY1305_X86_64=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA1_SSSE3=y
CONFIG_CRYPTO_SHA256_SSSE3=y
CONFIG_CRYPTO_SHA512_SSSE3=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=m
# CONFIG_CRYPTO_SM3 is not set
# CONFIG_CRYPTO_STREEBOG is not set
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
CONFIG_CRYPTO_BLOWFISH_X86_64=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAMELLIA_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64=m
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST5_AVX_X86_64=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_CAST6_AVX_X86_64=m
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_CHACHA20=m
CONFIG_CRYPTO_CHACHA20_X86_64=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=m
# CONFIG_CRYPTO_SM4 is not set
# CONFIG_CRYPTO_SM4_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_SM4_AESNI_AVX2_X86_64 is not set
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_TWOFISH_X86_64=m
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=m
CONFIG_CRYPTO_TWOFISH_AVX_X86_64=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
# CONFIG_CRYPTO_ZSTD is not set

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
CONFIG_CRYPTO_DRBG_CTR=y
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_USER_API_RNG=y
# CONFIG_CRYPTO_USER_API_RNG_CAVP is not set
CONFIG_CRYPTO_USER_API_AEAD=y
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
# CONFIG_CRYPTO_STATS is not set
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=m
CONFIG_CRYPTO_DEV_PADLOCK_AES=m
CONFIG_CRYPTO_DEV_PADLOCK_SHA=m
# CONFIG_CRYPTO_DEV_ATMEL_ECC is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA204A is not set
CONFIG_CRYPTO_DEV_CCP=y
CONFIG_CRYPTO_DEV_CCP_DD=m
CONFIG_CRYPTO_DEV_SP_CCP=y
CONFIG_CRYPTO_DEV_CCP_CRYPTO=m
CONFIG_CRYPTO_DEV_SP_PSP=y
# CONFIG_CRYPTO_DEV_CCP_DEBUGFS is not set
CONFIG_CRYPTO_DEV_QAT=m
CONFIG_CRYPTO_DEV_QAT_DH895xCC=m
CONFIG_CRYPTO_DEV_QAT_C3XXX=m
CONFIG_CRYPTO_DEV_QAT_C62X=m
# CONFIG_CRYPTO_DEV_QAT_4XXX is not set
CONFIG_CRYPTO_DEV_QAT_DH895xCCVF=m
CONFIG_CRYPTO_DEV_QAT_C3XXXVF=m
CONFIG_CRYPTO_DEV_QAT_C62XVF=m
CONFIG_CRYPTO_DEV_NITROX=m
CONFIG_CRYPTO_DEV_NITROX_CNN55XX=m
# CONFIG_CRYPTO_DEV_VIRTIO is not set
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
# CONFIG_ASYMMETRIC_TPM_KEY_SUBTYPE is not set
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
CONFIG_PKCS7_MESSAGE_PARSER=y
# CONFIG_PKCS7_TEST_KEY is not set
CONFIG_SIGNED_PE_FILE_VERIFICATION=y

#
# Certificates for signature checking
#
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
CONFIG_MODULE_SIG_KEY_TYPE_RSA=y
# CONFIG_MODULE_SIG_KEY_TYPE_ECDSA is not set
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
# CONFIG_SECONDARY_TRUSTED_KEYRING is not set
CONFIG_SYSTEM_BLACKLIST_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
# CONFIG_SYSTEM_REVOCATION_LIST is not set
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_RAID6_PQ_BENCHMARK=y
CONFIG_LINEAR_RANGES=m
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_CORDIC=m
CONFIG_PRIME_NUMBERS=m
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_ARC4=m
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA=m
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=m
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305=m
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=m
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines

CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_CRC8=m
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMPRESS=m
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_ENC8=y
CONFIG_REED_SOLOMON_DEC8=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_SWIOTLB=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_GLOB_SELFTEST=m
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_SIGNATURE=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_MEMREGION=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_ARCH_HAS_COPY_MC=y
CONFIG_ARCH_STACKWALK=y
CONFIG_SBITMAP=y
# end of Library routines

CONFIG_ASN1_ENCODER=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
# CONFIG_DEBUG_INFO_COMPRESSED is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
CONFIG_DEBUG_INFO_DWARF4=y
# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_PAHOLE_HAS_SPLIT_BTF=y
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=8192
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_STACK_VALIDATION=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_UBSAN is not set
CONFIG_HAVE_ARCH_KCSAN=y
# end of Generic Kernel Debugging Instruments

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# end of Networking Debugging

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_PAGE_TABLE_CHECK is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
# CONFIG_DEBUG_WX is not set
CONFIG_GENERIC_PTDUMP=y
# CONFIG_PTDUMP_DEBUGFS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VM_PGTABLE is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# CONFIG_KASAN is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
# end of Memory Debugging

CONFIG_DEBUG_SHIRQ=y

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=1
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=480
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_WQ_WATCHDOG=y
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# CONFIG_CSD_LOCK_WAIT_DEBUG is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set

#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_BUG_ON_DATA_CORRUPTION=y
# end of Debug kernel data structures

# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
CONFIG_LATENCYTOP=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_OBJTOOL_MCOUNT=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_BOOTTIME_TRACING is not set
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_STACK_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_HWLAT_TRACER=y
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_MMIOTRACE is not set
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENTS=y
# CONFIG_KPROBE_EVENTS_ON_NOTRACE is not set
CONFIG_UPROBE_EVENTS=y
CONFIG_BPF_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
# CONFIG_BPF_KPROBE_OVERRIDE is not set
CONFIG_FTRACE_MCOUNT_RECORD=y
CONFIG_FTRACE_MCOUNT_USE_CC=y
CONFIG_TRACING_MAP=y
CONFIG_SYNTH_EVENTS=y
CONFIG_HIST_TRIGGERS=y
# CONFIG_TRACE_EVENT_INJECT is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_TRACE_EVAL_MAP_FILE is not set
# CONFIG_FTRACE_RECORD_RECURSION is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_FTRACE_SORT_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_SYNTH_EVENT_GEN_TEST is not set
# CONFIG_KPROBE_EVENT_GEN_TEST is not set
# CONFIG_HIST_TRIGGERS_DEBUG is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
# CONFIG_SAMPLES is not set
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
# CONFIG_IO_STRICT_DEVMEM is not set

#
# x86 Debugging
#
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_EARLY_PRINTK_USB=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_EARLY_PRINTK_USB_XDBC=y
# CONFIG_EFI_PGT_DUMP is not set
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_FPU is not set
# CONFIG_PUNIT_ATOM_DEBUG is not set
CONFIG_UNWINDER_ORC=y
# CONFIG_UNWINDER_FRAME_POINTER is not set
# end of x86 Debugging

#
# Kernel Testing and Coverage
#
CONFIG_KUNIT=y
CONFIG_KUNIT_DEBUGFS=y
# CONFIG_KUNIT_TEST is not set
# CONFIG_KUNIT_EXAMPLE_TEST is not set
CONFIG_KUNIT_ALL_TESTS=m
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
CONFIG_FUNCTION_ERROR_INJECTION=y
# CONFIG_FAULT_INJECTION is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_LKDTM is not set
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_MIN_HEAP=m
CONFIG_TEST_SORT=m
CONFIG_TEST_DIV64=m
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
CONFIG_ATOMIC64_SELFTEST=m
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
CONFIG_STRING_SELFTEST=m
CONFIG_TEST_STRING_HELPERS=m
CONFIG_TEST_STRSCPY=m
CONFIG_TEST_KSTRTOX=m
CONFIG_TEST_PRINTF=m
CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
# CONFIG_TEST_LKM is not set
CONFIG_TEST_BITOPS=m
CONFIG_TEST_VMALLOC=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
CONFIG_BITFIELD_KUNIT=m
CONFIG_HASH_KUNIT_TEST=m
CONFIG_RESOURCE_KUNIT_TEST=m
CONFIG_SYSCTL_KUNIT_TEST=m
CONFIG_LIST_KUNIT_TEST=m
CONFIG_LINEAR_RANGES_TEST=m
CONFIG_CMDLINE_KUNIT_TEST=m
CONFIG_BITS_TEST=m
CONFIG_SLUB_KUNIT_TEST=m
CONFIG_RATIONAL_KUNIT_TEST=m
CONFIG_MEMCPY_KUNIT_TEST=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
# CONFIG_TEST_KMOD is not set
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_LIVEPATCH=m
# CONFIG_TEST_STACKINIT is not set
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_HMM=m
CONFIG_TEST_FREE_PAGES=m
CONFIG_TEST_FPU=m
# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage
# end of Kernel hacking

[-- Attachment #3: job-script --]
[-- Type: text/plain, Size: 4959 bytes --]

#!/bin/sh

export_top_env()
{
	export suite='boot'
	export testcase='boot'
	export category='functional'
	export timeout='10m'
	export job_origin='boot.yaml'
	export queue_cmdline_keys='branch
commit'
	export queue='validate'
	export testbox='vm-icl-5'
	export tbox_group='vm-icl'
	export branch='linux-review/Kumar-Kartikeya-Dwivedi/Introduce-typed-pointer-support-in-BPF-maps/20220317-200307'
	export commit='9a707eb02e50d3c736837128261bcba9c96a400d'
	export kconfig='x86_64-rhel-8.3-kunit'
	export repeat_to=6
	export nr_vm=160
	export submit_id='62346cdb28b9647e8aaf0c1d'
	export job_file='/lkp/jobs/scheduled/vm-icl-5/boot-1-debian-10.4-x86_64-20200603.cgz-9a707eb02e50d3c736837128261bcba9c96a400d-20220318-32394-16y5u19-5.yaml'
	export id='718453e2136f37ef5e4f59427cd3dfcba8c20bf0'
	export queuer_version='/lkp-src'
	export model='qemu-system-x86_64 -enable-kvm -cpu Icelake-Server'
	export nr_cpu=4
	export memory='16G'
	export need_kconfig=\{\"KVM_GUEST\"\=\>\"y\"\}
	export ssh_base_port=23600
	export kernel_cmdline='vmalloc=128M initramfs_async=0 page_owner=on'
	export rootfs='debian-10.4-x86_64-20200603.cgz'
	export compiler='gcc-9'
	export enqueue_time='2022-03-18 19:28:28 +0800'
	export _id='62346cf428b9647e8aaf0c1f'
	export _rt='/result/boot/1/vm-icl/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d'
	export user='lkp'
	export LKP_SERVER='internal-lkp-server'
	export result_root='/result/boot/1/vm-icl/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/3'
	export scheduler_version='/lkp/lkp/.src-20220318-154624'
	export arch='x86_64'
	export max_uptime=600
	export initrd='/osimage/debian/debian-10.4-x86_64-20200603.cgz'
	export bootloader_append='root=/dev/ram0
RESULT_ROOT=/result/boot/1/vm-icl/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/3
BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/vmlinuz-5.17.0-rc6-02001-g9a707eb02e50
branch=linux-review/Kumar-Kartikeya-Dwivedi/Introduce-typed-pointer-support-in-BPF-maps/20220317-200307
job=/lkp/jobs/scheduled/vm-icl-5/boot-1-debian-10.4-x86_64-20200603.cgz-9a707eb02e50d3c736837128261bcba9c96a400d-20220318-32394-16y5u19-5.yaml
user=lkp
ARCH=x86_64
kconfig=x86_64-rhel-8.3-kunit
commit=9a707eb02e50d3c736837128261bcba9c96a400d
vmalloc=128M initramfs_async=0 page_owner=on
max_uptime=600
LKP_SERVER=internal-lkp-server
selinux=0
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw'
	export modules_initrd='/pkg/linux/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/modules.cgz'
	export bm_initrd='/osimage/deps/debian-10.4-x86_64-20200603.cgz/run-ipconfig_20200608.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/lkp_20220105.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/rsync-rootfs_20200608.cgz'
	export lkp_initrd='/osimage/user/lkp/lkp-x86_64.cgz'
	export site='inn'
	export LKP_CGI_PORT=80
	export LKP_CIFS_PORT=139
	export schedule_notify_address=
	export kernel='/pkg/linux/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/vmlinuz-5.17.0-rc6-02001-g9a707eb02e50'
	export dequeue_time='2022-03-18 19:29:35 +0800'
	export job_initrd='/lkp/jobs/scheduled/vm-icl-5/boot-1-debian-10.4-x86_64-20200603.cgz-9a707eb02e50d3c736837128261bcba9c96a400d-20220318-32394-16y5u19-5.cgz'

	[ -n "$LKP_SRC" ] ||
	export LKP_SRC=/lkp/${user:-lkp}/src
}

run_job()
{
	echo $$ > $TMP/run-job.pid

	. $LKP_SRC/lib/http.sh
	. $LKP_SRC/lib/job.sh
	. $LKP_SRC/lib/env.sh

	export_top_env

	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-slabinfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-meminfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper memmap
	run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time
	run_monitor $LKP_SRC/monitors/wrapper kmsg
	run_monitor $LKP_SRC/monitors/wrapper heartbeat
	run_monitor $LKP_SRC/monitors/wrapper meminfo
	run_monitor $LKP_SRC/monitors/wrapper oom-killer
	run_monitor $LKP_SRC/monitors/plain/watchdog

	run_test $LKP_SRC/tests/wrapper sleep 1
}

extract_stats()
{
	export stats_part_begin=
	export stats_part_end=

	$LKP_SRC/stats/wrapper boot-slabinfo
	$LKP_SRC/stats/wrapper boot-meminfo
	$LKP_SRC/stats/wrapper memmap
	$LKP_SRC/stats/wrapper boot-memory
	$LKP_SRC/stats/wrapper boot-time
	$LKP_SRC/stats/wrapper kernel-size
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper sleep
	$LKP_SRC/stats/wrapper meminfo

	$LKP_SRC/stats/wrapper time sleep.time
	$LKP_SRC/stats/wrapper dmesg
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper last_state
	$LKP_SRC/stats/wrapper stderr
	$LKP_SRC/stats/wrapper time
}

"$@"

[-- Attachment #4: dmesg.xz --]
[-- Type: application/x-xz, Size: 10428 bytes --]

[bpf] 9a707eb02e: BUG:kernel_NULL_pointer_dereference,address

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 7729 bytes --]



Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 9a707eb02e50d3c736837128261bcba9c96a400d ("[PATCH bpf-next v2 09/15] bpf: Always raise reference in btf_get_module_btf")
url: https://github.com/0day-ci/linux/commits/Kumar-Kartikeya-Dwivedi/Introduce-typed-pointer-support-in-BPF-maps/20220317-200307
base: https://git.kernel.org/cgit/linux/kernel/git/bpf/bpf-next.git master
patch link: https://lore.kernel.org/bpf/20220317115957.3193097-10-memxor(a)gmail.com

in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu Icelake-Server -smp 4 -m 16G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+---------------------------------------------+------------+------------+
|                                             | 96cb297d08 | 9a707eb02e |
+---------------------------------------------+------------+------------+
| boot_successes                              | 36         | 0          |
| boot_failures                               | 0          | 36         |
| BUG:kernel_NULL_pointer_dereference,address | 0          | 36         |
| Oops:#[##]                                  | 0          | 36         |
| RIP:register_btf_kfunc_id_set               | 0          | 36         |
| Kernel_panic-not_syncing:Fatal_exception    | 0          | 36         |
+---------------------------------------------+------------+------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@intel.com>


[    4.499143][    T1] BUG: kernel NULL pointer dereference, address: 0000000000000054
[    4.500062][    T1] #PF: supervisor write access in kernel mode
[    4.500062][    T1] #PF: error_code(0x0002) - not-present page
[    4.500062][    T1] PGD 0 P4D 0
[    4.500062][    T1] Oops: 0002 [#1] SMP PTI
[    4.500062][    T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.17.0-rc6-02001-g9a707eb02e50 #1
[    4.500062][    T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 4.500062][ T1] RIP: 0010:register_btf_kfunc_id_set (arch/x86/include/asm/atomic.h:184 include/linux/atomic/atomic-instrumented.h:117 include/linux/refcount.h:193 include/linux/refcount.h:250 include/linux/refcount.h:267 kernel/bpf/btf.c:1636 kernel/bpf/btf.c:6783 kernel/bpf/btf.c:7007) 
[ 4.500062][ T1] Code: 5c 41 5d 41 5e 41 5f c3 89 fb 49 89 f4 e8 08 27 fe ff 48 89 c5 48 3d 00 f0 ff ff 0f 87 40 02 00 00 48 8d 78 54 b8 01 00 00 00 <f0> 0f c1 45 54 85 c0 0f 84 55 02 00 00 0f 88 40 02 00 00 83 c0 01
All code
========
   0:	5c                   	pop    %rsp
   1:	41 5d                	pop    %r13
   3:	41 5e                	pop    %r14
   5:	41 5f                	pop    %r15
   7:	c3                   	retq   
   8:	89 fb                	mov    %edi,%ebx
   a:	49 89 f4             	mov    %rsi,%r12
   d:	e8 08 27 fe ff       	callq  0xfffffffffffe271a
  12:	48 89 c5             	mov    %rax,%rbp
  15:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
  1b:	0f 87 40 02 00 00    	ja     0x261
  21:	48 8d 78 54          	lea    0x54(%rax),%rdi
  25:	b8 01 00 00 00       	mov    $0x1,%eax
  2a:*	f0 0f c1 45 54       	lock xadd %eax,0x54(%rbp)		<-- trapping instruction
  2f:	85 c0                	test   %eax,%eax
  31:	0f 84 55 02 00 00    	je     0x28c
  37:	0f 88 40 02 00 00    	js     0x27d
  3d:	83 c0 01             	add    $0x1,%eax

Code starting with the faulting instruction
===========================================
   0:	f0 0f c1 45 54       	lock xadd %eax,0x54(%rbp)
   5:	85 c0                	test   %eax,%eax
   7:	0f 84 55 02 00 00    	je     0x262
   d:	0f 88 40 02 00 00    	js     0x253
  13:	83 c0 01             	add    $0x1,%eax
[    4.500062][    T1] RSP: 0000:ffffa6e9c0013dd8 EFLAGS: 00010207
[    4.500062][    T1] RAX: 0000000000000001 RBX: 000000000000001b RCX: 000000000000019a
[    4.500062][    T1] RDX: 00000000000000ce RSI: ffffffffb79054c0 RDI: 0000000000000054
[    4.500062][    T1] RBP: 0000000000000000 R08: ffffa6e9c0013dd8 R09: ffffa6e9c0013dd8
[    4.500062][    T1] R10: 0000000000030400 R11: 0000000000000000 R12: ffffffffb79054c0
[    4.500062][    T1] R13: ffff989c4004f800 R14: 0000000000000000 R15: 0000000000000000
[    4.500062][    T1] FS:  0000000000000000(0000) GS:ffff989f6fc80000(0000) knlGS:0000000000000000
[    4.500062][    T1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.500062][    T1] CR2: 0000000000000054 CR3: 0000000198a0a001 CR4: 0000000000060ee0
[    4.500062][    T1] Call Trace:
[    4.500062][    T1]  <TASK>
[ 4.500062][ T1] ? ip_auto_config (net/ipv4/tcp_cubic.c:507) 
[ 4.500062][ T1] cubictcp_register (net/ipv4/tcp_cubic.c:541) 
[ 4.500062][ T1] do_one_initcall (init/main.c:1302) 
[ 4.500062][ T1] kernel_init_freeable (init/main.c:1374 init/main.c:1391 init/main.c:1410 init/main.c:1615) 
[ 4.500062][ T1] ? rest_init (init/main.c:1496) 
[ 4.500062][ T1] kernel_init (init/main.c:1506) 
[ 4.500062][ T1] ret_from_fork (arch/x86/entry/entry_64.S:301) 
[    4.500062][    T1]  </TASK>
[    4.500062][    T1] Modules linked in:
[    4.500062][    T1] CR2: 0000000000000054
[    4.500062][    T1] ---[ end trace 0000000000000000 ]---
[ 4.500062][ T1] RIP: 0010:register_btf_kfunc_id_set (arch/x86/include/asm/atomic.h:184 include/linux/atomic/atomic-instrumented.h:117 include/linux/refcount.h:193 include/linux/refcount.h:250 include/linux/refcount.h:267 kernel/bpf/btf.c:1636 kernel/bpf/btf.c:6783 kernel/bpf/btf.c:7007) 
[ 4.500062][ T1] Code: 5c 41 5d 41 5e 41 5f c3 89 fb 49 89 f4 e8 08 27 fe ff 48 89 c5 48 3d 00 f0 ff ff 0f 87 40 02 00 00 48 8d 78 54 b8 01 00 00 00 <f0> 0f c1 45 54 85 c0 0f 84 55 02 00 00 0f 88 40 02 00 00 83 c0 01
All code
========
   0:	5c                   	pop    %rsp
   1:	41 5d                	pop    %r13
   3:	41 5e                	pop    %r14
   5:	41 5f                	pop    %r15
   7:	c3                   	retq   
   8:	89 fb                	mov    %edi,%ebx
   a:	49 89 f4             	mov    %rsi,%r12
   d:	e8 08 27 fe ff       	callq  0xfffffffffffe271a
  12:	48 89 c5             	mov    %rax,%rbp
  15:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
  1b:	0f 87 40 02 00 00    	ja     0x261
  21:	48 8d 78 54          	lea    0x54(%rax),%rdi
  25:	b8 01 00 00 00       	mov    $0x1,%eax
  2a:*	f0 0f c1 45 54       	lock xadd %eax,0x54(%rbp)		<-- trapping instruction
  2f:	85 c0                	test   %eax,%eax
  31:	0f 84 55 02 00 00    	je     0x28c
  37:	0f 88 40 02 00 00    	js     0x27d
  3d:	83 c0 01             	add    $0x1,%eax

Code starting with the faulting instruction
===========================================
   0:	f0 0f c1 45 54       	lock xadd %eax,0x54(%rbp)
   5:	85 c0                	test   %eax,%eax
   7:	0f 84 55 02 00 00    	je     0x262
   d:	0f 88 40 02 00 00    	js     0x253
  13:	83 c0 01             	add    $0x1,%eax


To reproduce:

        # build kernel
	cd linux
	cp config-5.17.0-rc6-02001-g9a707eb02e50 .config
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



[-- Attachment #2: config-5.17.0-rc6-02001-g9a707eb02e50 --]
[-- Type: text/plain, Size: 162364 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 5.17.0-rc6 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=90400
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23502
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23502
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_GENERIC_IRQ_INJECTION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_TIME_KUNIT_TEST=m

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
# CONFIG_NO_HZ_IDLE is not set
CONFIG_NO_HZ_FULL=y
CONFIG_CONTEXT_TRACKING=y
# CONFIG_CONTEXT_TRACKING_FORCE is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# CONFIG_BPF_PRELOAD is not set
# CONFIG_BPF_LSM is not set
# end of BPF subsystem

CONFIG_PREEMPT_VOLUNTARY_BUILD=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_PREEMPT_DYNAMIC is not set
# CONFIG_SCHED_CORE is not set

#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_SCHED_AVG_IRQ=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_TASKS_RUDE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_NOCB_CPU=y
# end of RCU Subsystem

CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
# CONFIG_PRINTK_INDEX is not set
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
# CONFIG_UCLAMP_TASK is not set
# end of Scheduler features

CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_NUMA_BALANCING=y
CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_MEMCG_KMEM=y
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_BPF=y
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_HAVE_ARCH_USERFAULTFD_WP=y
CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_USERFAULTFD=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_KCMP=y
CONFIG_RSEQ=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_GUEST_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters

CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
CONFIG_SLAB_FREELIST_RANDOM=y
# CONFIG_SLAB_FREELIST_HARDENED is not set
CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
CONFIG_SLUB_CPU_PARTIAL=y
CONFIG_SYSTEM_DATA_VERIFICATION=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# end of General setup

CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_FILTER_PGPROT=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_NR_GPIO=1024
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_AUDIT_ARCH=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=5
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_X2APIC=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
CONFIG_RETPOLINE=y
# CONFIG_X86_CPU_RESCTRL is not set
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_NUMACHIP is not set
# CONFIG_X86_VSMP is not set
CONFIG_X86_UV=y
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_MID is not set
CONFIG_X86_INTEL_LPSS=y
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_X86_HV_CALLBACK_VECTOR=y
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
CONFIG_PARAVIRT_TIME_ACCOUNTING=y
CONFIG_PARAVIRT_CLOCK=y
# CONFIG_JAILHOUSE_GUEST is not set
# CONFIG_ACRN_GUEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
CONFIG_MAXSMP=y
CONFIG_NR_CPUS_RANGE_BEGIN=8192
CONFIG_NR_CPUS_RANGE_END=8192
CONFIG_NR_CPUS_DEFAULT=8192
CONFIG_NR_CPUS=8192
CONFIG_SCHED_CLUSTER=y
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_SCHED_MC_PRIO=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCELOG_LEGACY=y
CONFIG_X86_MCE_INTEL=y
# CONFIG_X86_MCE_AMD is not set
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=m
CONFIG_PERF_EVENTS_INTEL_RAPL=m
CONFIG_PERF_EVENTS_INTEL_CSTATE=m
# CONFIG_PERF_EVENTS_AMD_POWER is not set
CONFIG_PERF_EVENTS_AMD_UNCORE=y
# end of Performance monitoring

CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
CONFIG_X86_IOPL_IOPERM=y
CONFIG_I8K=m
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_X86_5LEVEL=y
CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_X86_CPA_STATISTICS is not set
# CONFIG_AMD_MEM_ENCRYPT is not set
CONFIG_NUMA=y
# CONFIG_AMD_NUMA is not set
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NUMA_EMU=y
CONFIG_NODES_SHIFT=10
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
# CONFIG_ARCH_MEMORY_PROBE is not set
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_X86_PMEM_LEGACY_DEVICE=y
CONFIG_X86_PMEM_LEGACY=m
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_X86_UMIP=y
CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=y
CONFIG_X86_INTEL_TSX_MODE_OFF=y
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
# CONFIG_X86_SGX is not set
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EFI_MIXED=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_KEXEC_FILE=y
CONFIG_ARCH_HAS_KEXEC_PURGATORY=y
# CONFIG_KEXEC_SIG is not set
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_RANDOMIZE_BASE=y
CONFIG_X86_NEED_RELOCS=y
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_DYNAMIC_MEMORY_LAYOUT=y
CONFIG_RANDOMIZE_MEMORY=y
CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0xa
CONFIG_HOTPLUG_CPU=y
CONFIG_BOOTPARAM_HOTPLUG_CPU0=y
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
CONFIG_LEGACY_VSYSCALL_EMULATE=y
# CONFIG_LEGACY_VSYSCALL_XONLY is not set
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
CONFIG_HAVE_LIVEPATCH=y
CONFIG_LIVEPATCH=y
# end of Processor type and features

CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_HIBERNATION_SNAPSHOT_DEV=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
# CONFIG_PM_ADVANCED_DEBUG is not set
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_PM_TRACE_RTC is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
# CONFIG_ACPI_FPDT is not set
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
CONFIG_ACPI_EC_DEBUGFS=m
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
CONFIG_ACPI_TAD=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_CPPC_LIB=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_PLATFORM_PROFILE=m
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_BGRT=y
CONFIG_ACPI_NFIT=m
# CONFIG_NFIT_SECURITY_DEBUG is not set
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_HMAT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_ACPI_APEI_MEMORY_FAILURE=y
CONFIG_ACPI_APEI_EINJ=m
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_ACPI_DPTF is not set
CONFIG_ACPI_WATCHDOG=y
CONFIG_ACPI_EXTLOG=m
CONFIG_ACPI_ADXL=y
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_ACPI_PFRUT is not set
CONFIG_ACPI_PCC=y
CONFIG_PMIC_OPREGION=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_PRMT=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
CONFIG_X86_INTEL_PSTATE=y
# CONFIG_X86_PCC_CPUFREQ is not set
# CONFIG_X86_AMD_PSTATE is not set
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_X86_POWERNOW_K8=m
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=m

#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
# end of CPU Frequency scaling

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_CPU_IDLE_GOV_TEO is not set
# CONFIG_CPU_IDLE_GOV_HALTPOLL is not set
CONFIG_HALTPOLL_CPUIDLE=y
# end of CPU Idle

CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_MMCONF_FAM10H=y
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# end of Bus options (PCI etc.)

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
# CONFIG_X86_X32 is not set
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
# end of Binary Emulations

CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_PFNCACHE=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_DIRTY_RING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_HAVE_KVM_PM_NOTIFIER=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
# CONFIG_KVM_AMD is not set
# CONFIG_KVM_XEN is not set
CONFIG_KVM_MMU_AUDIT=y
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_HOTPLUG_SMT=y
CONFIG_GENERIC_ENTRY=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_LTO_NONE=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_HUGE_VMALLOC=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_ARCH_USE_MEMREMAP_PROT=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_STATIC_CALL_INLINE=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y
CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_ICQ=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_INTEGRITY_T10=m
# CONFIG_BLK_DEV_ZONED is not set
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_DEV_THROTTLING_LOW is not set
CONFIG_BLK_WBT=y
CONFIG_BLK_WBT_MQ=y
# CONFIG_BLK_CGROUP_IOLATENCY is not set
# CONFIG_BLK_CGROUP_FC_APPID is not set
# CONFIG_BLK_CGROUP_IOCOST is not set
# CONFIG_BLK_CGROUP_IOPRIO is not set
CONFIG_BLK_DEBUG_FS=y
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
# CONFIG_BFQ_CGROUP_DEBUG is not set
# end of IO Schedulers

CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_FAST_GUP=y
CONFIG_NUMA_KEEP_MEMINFO=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_HAVE_BOOTMEM_INFO_NODE=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG=y
# CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_MHP_MEMMAP_ON_MEMORY=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_HWPOISON_INJECT=m
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_ARCH_WANTS_THP_SWAP=y
CONFIG_THP_SWAP=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_FRONTSWAP=y
# CONFIG_CMA is not set
CONFIG_ZSWAP=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT="lzo"
CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
# CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD is not set
# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC is not set
CONFIG_ZSWAP_ZPOOL_DEFAULT="zbud"
# CONFIG_ZSWAP_DEFAULT_ON is not set
CONFIG_ZPOOL=y
CONFIG_ZBUD=y
# CONFIG_Z3FOLD is not set
CONFIG_ZSMALLOC=y
CONFIG_ZSMALLOC_STAT=y
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
CONFIG_PAGE_IDLE_FLAG=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_PTE_DEVMAP=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
CONFIG_ZONE_DEVICE=y
CONFIG_DEV_PAGEMAP_OPS=y
CONFIG_HMM_MIRROR=y
CONFIG_DEVICE_PRIVATE=y
CONFIG_VMAP_PFN=y
CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
CONFIG_ARCH_HAS_PKEYS=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
# CONFIG_READ_ONLY_THP_FOR_FS is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_SECRETMEM=y
# CONFIG_ANON_VMA_NAME is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=m
CONFIG_TLS=m
CONFIG_TLS_DEVICE=y
# CONFIG_TLS_TOE is not set
CONFIG_XFRM=y
CONFIG_XFRM_OFFLOAD=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_USER_COMPAT is not set
# CONFIG_XFRM_INTERFACE is not set
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_AH=m
CONFIG_XFRM_ESP=m
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_XDP_SOCKETS=y
# CONFIG_XDP_SOCKETS_DIAG is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
CONFIG_NET_IPVTI=m
CONFIG_NET_UDP_TUNNEL=m
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_ESP_OFFLOAD=m
# CONFIG_INET_ESPINTCP is not set
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_INET_UDP_DIAG=m
CONFIG_INET_RAW_DIAG=m
# CONFIG_INET_DIAG_DESTROY is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_NV=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_TCP_CONG_DCTCP=m
# CONFIG_TCP_CONG_CDG is not set
CONFIG_TCP_CONG_BBR=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_ESP_OFFLOAD=m
# CONFIG_INET6_ESPINTCP is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
# CONFIG_IPV6_ILA is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_IPV6_VTI=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_GRE=m
CONFIG_IPV6_MULTIPLE_TABLES=y
# CONFIG_IPV6_SUBTREES is not set
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
CONFIG_NETLABEL=y
# CONFIG_MPTCP is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=m

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_EGRESS=y
CONFIG_NETFILTER_SKIP_EGRESS=y
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_FAMILY_BRIDGE=y
CONFIG_NETFILTER_FAMILY_ARP=y
# CONFIG_NETFILTER_NETLINK_HOOK is not set
# CONFIG_NETFILTER_NETLINK_ACCT is not set
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NETFILTER_NETLINK_OSF=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_LOG_SYSLOG=m
CONFIG_NETFILTER_CONNCOUNT=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_ZONES=y
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
CONFIG_NF_CONNTRACK_LABELS=y
CONFIG_NF_CT_PROTO_DCCP=y
CONFIG_NF_CT_PROTO_GRE=y
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CT_PROTO_UDPLITE=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NF_CT_NETLINK_TIMEOUT=m
CONFIG_NF_CT_NETLINK_HELPER=m
CONFIG_NETFILTER_NETLINK_GLUE_CT=y
CONFIG_NF_NAT=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_SIP=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_REDIRECT=y
CONFIG_NF_NAT_MASQUERADE=y
CONFIG_NETFILTER_SYNPROXY=m
CONFIG_NF_TABLES=m
CONFIG_NF_TABLES_INET=y
CONFIG_NF_TABLES_NETDEV=y
CONFIG_NFT_NUMGEN=m
CONFIG_NFT_CT=m
CONFIG_NFT_CONNLIMIT=m
CONFIG_NFT_LOG=m
CONFIG_NFT_LIMIT=m
CONFIG_NFT_MASQ=m
CONFIG_NFT_REDIR=m
CONFIG_NFT_NAT=m
# CONFIG_NFT_TUNNEL is not set
CONFIG_NFT_OBJREF=m
CONFIG_NFT_QUEUE=m
CONFIG_NFT_QUOTA=m
CONFIG_NFT_REJECT=m
CONFIG_NFT_REJECT_INET=m
CONFIG_NFT_COMPAT=m
CONFIG_NFT_HASH=m
CONFIG_NFT_FIB=m
CONFIG_NFT_FIB_INET=m
# CONFIG_NFT_XFRM is not set
CONFIG_NFT_SOCKET=m
# CONFIG_NFT_OSF is not set
# CONFIG_NFT_TPROXY is not set
# CONFIG_NFT_SYNPROXY is not set
CONFIG_NF_DUP_NETDEV=m
CONFIG_NFT_DUP_NETDEV=m
CONFIG_NFT_FWD_NETDEV=m
CONFIG_NFT_FIB_NETDEV=m
# CONFIG_NFT_REJECT_NETDEV is not set
# CONFIG_NF_FLOW_TABLE is not set
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XTABLES_COMPAT=y

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m
CONFIG_NETFILTER_XT_SET=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_HMARK=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
# CONFIG_NETFILTER_XT_TARGET_LED is not set
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_NAT=m
CONFIG_NETFILTER_XT_TARGET_NETMAP=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
CONFIG_NETFILTER_XT_TARGET_MASQUERADE=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_BPF=m
CONFIG_NETFILTER_XT_MATCH_CGROUP=m
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# end of Core Netfilter Configuration

CONFIG_IP_SET=m
CONFIG_IP_SET_MAX=256
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPMARK=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
CONFIG_IP_SET_HASH_IPMAC=m
CONFIG_IP_SET_HASH_MAC=m
CONFIG_IP_SET_HASH_NETPORTNET=m
CONFIG_IP_SET_HASH_NET=m
CONFIG_IP_SET_HASH_NETNET=m
CONFIG_IP_SET_HASH_NETPORT=m
CONFIG_IP_SET_HASH_NETIFACE=m
CONFIG_IP_SET_LIST_SET=m
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_FO=m
CONFIG_IP_VS_OVF=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
# CONFIG_IP_VS_MH is not set
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
# CONFIG_IP_VS_TWOS is not set

#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8

#
# IPVS MH scheduler
#
CONFIG_IP_VS_MH_TAB_INDEX=12

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_NFCT=y
CONFIG_IP_VS_PE_SIP=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_SOCKET_IPV4=m
CONFIG_NF_TPROXY_IPV4=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_REJECT_IPV4=m
CONFIG_NFT_DUP_IPV4=m
CONFIG_NFT_FIB_IPV4=m
CONFIG_NF_TABLES_ARP=y
CONFIG_NF_DUP_IPV4=m
CONFIG_NF_LOG_ARP=m
CONFIG_NF_LOG_IPV4=m
CONFIG_NF_REJECT_IPV4=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_RPFILTER=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_SYNPROXY=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
# end of IP: Netfilter Configuration

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_SOCKET_IPV6=m
CONFIG_NF_TPROXY_IPV6=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_REJECT_IPV6=m
CONFIG_NFT_DUP_IPV6=m
CONFIG_NFT_FIB_IPV6=m
CONFIG_NF_DUP_IPV6=m
CONFIG_NF_REJECT_IPV6=m
CONFIG_NF_LOG_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RPFILTER=m
CONFIG_IP6_NF_MATCH_RT=m
# CONFIG_IP6_NF_MATCH_SRH is not set
# CONFIG_IP6_NF_TARGET_HL is not set
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_TARGET_SYNPROXY=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
CONFIG_IP6_NF_NAT=m
CONFIG_IP6_NF_TARGET_MASQUERADE=m
CONFIG_IP6_NF_TARGET_NPT=m
# end of IPv6: Netfilter Configuration

CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_TABLES_BRIDGE=m
# CONFIG_NFT_BRIDGE_META is not set
CONFIG_NFT_BRIDGE_REJECT=m
# CONFIG_NF_CONNTRACK_BRIDGE is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5 is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
CONFIG_SCTP_COOKIE_HMAC_SHA1=y
CONFIG_INET_SCTP_DIAG=m
# CONFIG_RDS is not set
CONFIG_TIPC=m
CONFIG_TIPC_MEDIA_UDP=y
CONFIG_TIPC_CRYPTO=y
CONFIG_TIPC_DIAG=m
CONFIG_ATM=m
CONFIG_ATM_CLIP=m
# CONFIG_ATM_CLIP_NO_ICMP is not set
CONFIG_ATM_LANE=m
# CONFIG_ATM_MPOA is not set
CONFIG_ATM_BR2684=m
# CONFIG_ATM_BR2684_IPFILTER is not set
CONFIG_L2TP=m
CONFIG_L2TP_DEBUGFS=m
CONFIG_L2TP_V3=y
CONFIG_L2TP_IP=m
CONFIG_L2TP_ETH=m
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_MRP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_BRIDGE_VLAN_FILTERING=y
# CONFIG_BRIDGE_MRP is not set
# CONFIG_BRIDGE_CFM is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
CONFIG_6LOWPAN=m
# CONFIG_6LOWPAN_DEBUGFS is not set
# CONFIG_6LOWPAN_NHC is not set
CONFIG_IEEE802154=m
# CONFIG_IEEE802154_NL802154_EXPERIMENTAL is not set
CONFIG_IEEE802154_SOCKET=m
CONFIG_IEEE802154_6LOWPAN=m
CONFIG_MAC802154=m
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_ATM=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
# CONFIG_NET_SCH_CBS is not set
# CONFIG_NET_SCH_ETF is not set
# CONFIG_NET_SCH_TAPRIO is not set
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
# CONFIG_NET_SCH_SKBPRIO is not set
CONFIG_NET_SCH_CHOKE=m
CONFIG_NET_SCH_QFQ=m
CONFIG_NET_SCH_CODEL=m
CONFIG_NET_SCH_FQ_CODEL=y
# CONFIG_NET_SCH_CAKE is not set
CONFIG_NET_SCH_FQ=m
CONFIG_NET_SCH_HHF=m
CONFIG_NET_SCH_PIE=m
# CONFIG_NET_SCH_FQ_PIE is not set
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_SCH_PLUG=m
# CONFIG_NET_SCH_ETS is not set
CONFIG_NET_SCH_DEFAULT=y
# CONFIG_DEFAULT_FQ is not set
# CONFIG_DEFAULT_CODEL is not set
CONFIG_DEFAULT_FQ_CODEL=y
# CONFIG_DEFAULT_SFQ is not set
# CONFIG_DEFAULT_PFIFO_FAST is not set
CONFIG_DEFAULT_NET_SCH="fq_codel"

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_CLS_BPF=m
CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_CLS_MATCHALL=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
# CONFIG_NET_EMATCH_CANID is not set
CONFIG_NET_EMATCH_IPSET=m
# CONFIG_NET_EMATCH_IPT is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_SAMPLE=m
# CONFIG_NET_ACT_IPT is not set
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
# CONFIG_NET_ACT_MPLS is not set
CONFIG_NET_ACT_VLAN=m
CONFIG_NET_ACT_BPF=m
# CONFIG_NET_ACT_CONNMARK is not set
# CONFIG_NET_ACT_CTINFO is not set
CONFIG_NET_ACT_SKBMOD=m
# CONFIG_NET_ACT_IFE is not set
CONFIG_NET_ACT_TUNNEL_KEY=m
# CONFIG_NET_ACT_GATE is not set
# CONFIG_NET_TC_SKB_EXT is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=m
# CONFIG_BATMAN_ADV is not set
CONFIG_OPENVSWITCH=m
CONFIG_OPENVSWITCH_GRE=m
CONFIG_VSOCKETS=m
CONFIG_VSOCKETS_DIAG=m
CONFIG_VSOCKETS_LOOPBACK=m
CONFIG_VMWARE_VMCI_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS_COMMON=m
CONFIG_NETLINK_DIAG=m
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=y
CONFIG_MPLS_ROUTING=m
CONFIG_MPLS_IPTUNNEL=m
CONFIG_NET_NSH=y
# CONFIG_HSR is not set
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_L3_MASTER_DEV=y
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_STREAM_PARSER=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
CONFIG_NET_DROP_MONITOR=y
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_GW=m
# CONFIG_CAN_J1939 is not set
# CONFIG_CAN_ISOTP is not set

#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=m
# CONFIG_CAN_VXCAN is not set
CONFIG_CAN_SLCAN=m
CONFIG_CAN_DEV=m
CONFIG_CAN_CALC_BITTIMING=y
# CONFIG_CAN_KVASER_PCIEFD is not set
CONFIG_CAN_C_CAN=m
CONFIG_CAN_C_CAN_PLATFORM=m
CONFIG_CAN_C_CAN_PCI=m
CONFIG_CAN_CC770=m
# CONFIG_CAN_CC770_ISA is not set
CONFIG_CAN_CC770_PLATFORM=m
# CONFIG_CAN_IFI_CANFD is not set
# CONFIG_CAN_M_CAN is not set
# CONFIG_CAN_PEAK_PCIEFD is not set
CONFIG_CAN_SJA1000=m
CONFIG_CAN_EMS_PCI=m
# CONFIG_CAN_F81601 is not set
CONFIG_CAN_KVASER_PCI=m
CONFIG_CAN_PEAK_PCI=m
CONFIG_CAN_PEAK_PCIEC=y
CONFIG_CAN_PLX_PCI=m
# CONFIG_CAN_SJA1000_ISA is not set
CONFIG_CAN_SJA1000_PLATFORM=m
CONFIG_CAN_SOFTING=m

#
# CAN SPI interfaces
#
# CONFIG_CAN_HI311X is not set
# CONFIG_CAN_MCP251X is not set
# CONFIG_CAN_MCP251XFD is not set
# end of CAN SPI interfaces

#
# CAN USB interfaces
#
# CONFIG_CAN_8DEV_USB is not set
# CONFIG_CAN_EMS_USB is not set
# CONFIG_CAN_ESD_USB2 is not set
# CONFIG_CAN_ETAS_ES58X is not set
# CONFIG_CAN_GS_USB is not set
# CONFIG_CAN_KVASER_USB is not set
# CONFIG_CAN_MCBA_USB is not set
# CONFIG_CAN_PEAK_USB is not set
# CONFIG_CAN_UCAN is not set
# end of CAN USB interfaces

# CONFIG_CAN_DEBUG_DEVICES is not set
# end of CAN Device Drivers

# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_STREAM_PARSER=y
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
# CONFIG_CFG80211_WEXT is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_FD=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
CONFIG_CEPH_LIB_USE_DNS_RESOLVER=y
# CONFIG_NFC is not set
CONFIG_PSAMPLE=m
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_SOCK_VALIDATE_XMIT=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
CONFIG_FAILOVER=m
CONFIG_ETHTOOL_NETLINK=y
CONFIG_NETDEV_ADDR_LIST_TEST=m

#
# Device Drivers
#
CONFIG_HAVE_EISA=y
# CONFIG_EISA is not set
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIEAER_INJECT=m
CONFIG_PCIE_ECRC=y
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCIE_DPC=y
# CONFIG_PCIE_PTM is not set
# CONFIG_PCIE_EDR is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_PCI_PF_STUB=m
CONFIG_PCI_ATS=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
# CONFIG_PCI_P2PDMA is not set
CONFIG_PCI_LABEL=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=y

#
# PCI controller drivers
#
CONFIG_VMD=y

#
# DesignWare PCI Core Support
#
# CONFIG_PCIE_DW_PLAT_HOST is not set
# CONFIG_PCI_MESON is not set
# end of DesignWare PCI Core Support

#
# Mobiveil PCIe Core Support
#
# end of Mobiveil PCIe Core Support

#
# Cadence PCIe controllers support
#
# end of Cadence PCIe controllers support
# end of PCI controller drivers

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# end of PCI switch controller drivers

# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
# CONFIG_FW_LOADER_COMPRESS is not set
CONFIG_FW_CACHE=y
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
CONFIG_PM_QOS_KUNIT_TEST=y
CONFIG_TEST_ASYNC_DRIVER_PROBE=m
CONFIG_DRIVER_PE_KUNIT_TEST=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_SPI=m
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# end of Bus devices

CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol

CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=y
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT is not set
CONFIG_FW_CFG_SYSFS=y
# CONFIG_FW_CFG_SYSFS_CMDLINE is not set
CONFIG_SYSFB=y
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_ESRT=y
CONFIG_EFI_VARS_PSTORE=y
CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE=y
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_EFI_FAKE_MEMMAP is not set
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
# CONFIG_EFI_BOOTLOADER_CONTROL is not set
# CONFIG_EFI_CAPSULE_LOADER is not set
# CONFIG_EFI_TEST is not set
# CONFIG_APPLE_PROPERTIES is not set
# CONFIG_RESET_ATTACK_MITIGATION is not set
# CONFIG_EFI_RCI2_TABLE is not set
# CONFIG_EFI_DISABLE_PCI_DMA is not set
# end of EFI (Extensible Firmware Interface) Support

CONFIG_UEFI_CPER=y
CONFIG_UEFI_CPER_X86=y
CONFIG_EFI_EARLYCON=y
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS=y

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_NULL_BLK=m
# CONFIG_BLK_DEV_FD is not set
CONFIG_CDROM=m
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_ZRAM is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=0
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_VIRTIO_BLK=m
CONFIG_BLK_DEV_RBD=m

#
# NVME Support
#
CONFIG_NVME_CORE=m
CONFIG_BLK_DEV_NVME=m
CONFIG_NVME_MULTIPATH=y
# CONFIG_NVME_HWMON is not set
CONFIG_NVME_FABRICS=m
CONFIG_NVME_FC=m
# CONFIG_NVME_TCP is not set
CONFIG_NVME_TARGET=m
# CONFIG_NVME_TARGET_PASSTHRU is not set
CONFIG_NVME_TARGET_LOOP=m
CONFIG_NVME_TARGET_FC=m
CONFIG_NVME_TARGET_FCLOOP=m
# CONFIG_NVME_TARGET_TCP is not set
# end of NVME Support

#
# Misc devices
#
CONFIG_SENSORS_LIS3LV02D=m
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ICS932S401 is not set
CONFIG_ENCLOSURE_SERVICES=m
CONFIG_SGI_XP=m
CONFIG_HP_ILO=m
CONFIG_SGI_GRU=m
# CONFIG_SGI_GRU_DEBUG is not set
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
CONFIG_VMWARE_BALLOON=m
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
CONFIG_MISC_RTSX=m
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support

CONFIG_CB710_CORE=m
# CONFIG_CB710_DEBUG is not set
CONFIG_CB710_DEBUG_ASSUMPTIONS=y

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline

CONFIG_SENSORS_LIS3_I2C=m
CONFIG_ALTERA_STAPL=m
CONFIG_INTEL_MEI=m
CONFIG_INTEL_MEI_ME=m
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_INTEL_MEI_HDCP is not set
# CONFIG_INTEL_MEI_PXP is not set
CONFIG_VMWARE_VMCI=m
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_BCM_VK is not set
# CONFIG_MISC_ALCOR_PCI is not set
CONFIG_MISC_RTSX_PCI=m
# CONFIG_MISC_RTSX_USB is not set
# CONFIG_HABANA_AI is not set
# CONFIG_UACCE is not set
CONFIG_PVPANIC=y
# CONFIG_PVPANIC_MMIO is not set
# CONFIG_PVPANIC_PCI is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_BLK_DEV_BSG=y
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
CONFIG_SCSI_MPT3SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
CONFIG_SCSI_MPT3SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPI3MR is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_MYRB is not set
# CONFIG_SCSI_MYRS is not set
# CONFIG_VMWARE_PVSCSI is not set
# CONFIG_LIBFC is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FDOMAIN_PCI is not set
CONFIG_SCSI_ISCI=m
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_EFCT is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_VIRTIO is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
CONFIG_SCSI_DH=y
CONFIG_SCSI_DH_RDAC=y
CONFIG_SCSI_DH_HP_SW=y
CONFIG_SCSI_DH_EMC=y
CONFIG_SCSI_DH_ALUA=y
# end of SCSI device support

CONFIG_ATA=m
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_MOBILE_LPM_POLICY=0
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
# CONFIG_SATA_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
# CONFIG_MD_MULTIPATH is not set
CONFIG_MD_FAULTY=m
CONFIG_MD_CLUSTER=m
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=m
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=m
# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
CONFIG_DM_BIO_PRISON=m
CONFIG_DM_PERSISTENT_DATA=m
# CONFIG_DM_UNSTRIPED is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_THIN_PROVISIONING=m
CONFIG_DM_CACHE=m
CONFIG_DM_CACHE_SMQ=m
CONFIG_DM_WRITECACHE=m
# CONFIG_DM_EBS is not set
CONFIG_DM_ERA=m
# CONFIG_DM_CLONE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
# CONFIG_DM_MULTIPATH_HST is not set
# CONFIG_DM_MULTIPATH_IOA is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_DUST is not set
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=m
CONFIG_DM_VERITY=m
# CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG is not set
# CONFIG_DM_VERITY_FEC is not set
CONFIG_DM_SWITCH=m
CONFIG_DM_LOG_WRITES=m
CONFIG_DM_INTEGRITY=m
CONFIG_DM_AUDIT=y
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
CONFIG_TCM_PSCSI=m
CONFIG_TCM_USER2=m
CONFIG_LOOPBACK_TARGET=m
CONFIG_ISCSI_TARGET=m
# CONFIG_SBP_TARGET is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support

CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_AMT is not set
# CONFIG_MACSEC is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
CONFIG_VIRTIO_NET=m
# CONFIG_NLMON is not set
# CONFIG_NET_VRF is not set
# CONFIG_VSOCKMON is not set
# CONFIG_ARCNET is not set
CONFIG_ATM_DRIVERS=y
# CONFIG_ATM_DUMMY is not set
# CONFIG_ATM_TCP is not set
# CONFIG_ATM_LANAI is not set
# CONFIG_ATM_ENI is not set
# CONFIG_ATM_FIRESTREAM is not set
# CONFIG_ATM_ZATM is not set
# CONFIG_ATM_NICSTAR is not set
# CONFIG_ATM_IDT77252 is not set
# CONFIG_ATM_AMBASSADOR is not set
# CONFIG_ATM_HORIZON is not set
# CONFIG_ATM_IA is not set
# CONFIG_ATM_FORE200E is not set
# CONFIG_ATM_HE is not set
# CONFIG_ATM_SOLOS is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALACRITECH=y
# CONFIG_SLICOSS is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
# CONFIG_ENA_ETHERNET is not set
# CONFIG_NET_VENDOR_AMD is not set
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_AQTION is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ASIX=y
# CONFIG_SPI_AX88796C is not set
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_THUNDER_NIC_RGX is not set
CONFIG_CAVIUM_PTP=y
# CONFIG_LIQUIDIO is not set
# CONFIG_LIQUIDIO_VF is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
CONFIG_NET_VENDOR_CORTINA=y
# CONFIG_CX_ECAT is not set
CONFIG_NET_VENDOR_DAVICOM=y
# CONFIG_DM9051 is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
# CONFIG_NET_TULIP is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_ENGLEDER=y
# CONFIG_TSNEP is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_FUNGIBLE=y
# CONFIG_FUN_ETH is not set
CONFIG_NET_VENDOR_GOOGLE=y
# CONFIG_GVE is not set
CONFIG_NET_VENDOR_HUAWEI=y
# CONFIG_HINIC is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=y
CONFIG_E1000E=y
CONFIG_E1000E_HWTS=y
CONFIG_IGB=y
CONFIG_IGB_HWMON=y
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
CONFIG_IXGBE=y
CONFIG_IXGBE_HWMON=y
# CONFIG_IXGBE_DCB is not set
CONFIG_IXGBE_IPSEC=y
# CONFIG_IXGBEVF is not set
CONFIG_I40E=y
# CONFIG_I40E_DCB is not set
# CONFIG_I40EVF is not set
# CONFIG_ICE is not set
# CONFIG_FM10K is not set
CONFIG_IGC=y
CONFIG_NET_VENDOR_MICROSOFT=y
# CONFIG_JME is not set
CONFIG_NET_VENDOR_LITEX=y
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_PRESTERA is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROCHIP=y
# CONFIG_ENC28J60 is not set
# CONFIG_ENCX24J600 is not set
# CONFIG_LAN743X is not set
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETERION=y
# CONFIG_S2IO is not set
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP is not set
CONFIG_NET_VENDOR_NI=y
# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PACKET_ENGINES=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_PENSANDO=y
# CONFIG_IONIC is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCOM_EMAC is not set
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
CONFIG_R8169=y
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
# CONFIG_ROCKER is not set
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_PHY_SEL is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
# CONFIG_MSE102X is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_XILINX_EMACLITE is not set
# CONFIG_XILINX_AXI_EMAC is not set
# CONFIG_XILINX_LL_TEMAC is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set
CONFIG_FIXED_PHY=y

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
CONFIG_AX88796B_PHY=y
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=y
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_MICREL_KS8995MA is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_ACPI_MDIO=y
CONFIG_MDIO_DEVRES=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_THUNDER is not set

#
# MDIO Multiplexers
#

#
# PCS device drivers
#
# CONFIG_PCS_XPCS is not set
# end of PCS device drivers

# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
CONFIG_USB_RTL8152=y
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=y
CONFIG_USB_NET_AX8817X=y
CONFIG_USB_NET_AX88179_178A=y
# CONFIG_USB_NET_CDCETHER is not set
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
# CONFIG_USB_NET_RNDIS_HOST is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_USB_NET_AQC111 is not set
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K is not set
# CONFIG_ATH5K_PCI is not set
# CONFIG_ATH9K is not set
# CONFIG_ATH9K_HTC is not set
# CONFIG_CARL9170 is not set
# CONFIG_ATH6KL is not set
# CONFIG_AR5523 is not set
# CONFIG_WIL6210 is not set
# CONFIG_ATH10K is not set
# CONFIG_WCN36XX is not set
# CONFIG_ATH11K is not set
CONFIG_WLAN_VENDOR_ATMEL=y
# CONFIG_ATMEL is not set
# CONFIG_AT76C50X_USB is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_WLAN_VENDOR_CISCO=y
# CONFIG_AIRO is not set
CONFIG_WLAN_VENDOR_INTEL=y
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_IWL4965 is not set
# CONFIG_IWL3945 is not set
# CONFIG_IWLWIFI is not set
# CONFIG_IWLMEI is not set
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
CONFIG_WLAN_VENDOR_MARVELL=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MWIFIEX is not set
# CONFIG_MWL8K is not set
# CONFIG_WLAN_VENDOR_MEDIATEK is not set
CONFIG_WLAN_VENDOR_MICROCHIP=y
# CONFIG_WILC1000_SDIO is not set
# CONFIG_WILC1000_SPI is not set
CONFIG_WLAN_VENDOR_RALINK=y
# CONFIG_RT2X00 is not set
CONFIG_WLAN_VENDOR_REALTEK=y
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
# CONFIG_RTL8192SE is not set
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8723BE is not set
# CONFIG_RTL8188EE is not set
# CONFIG_RTL8192EE is not set
# CONFIG_RTL8821AE is not set
# CONFIG_RTL8192CU is not set
# CONFIG_RTL8XXXU is not set
# CONFIG_RTW88 is not set
# CONFIG_RTW89 is not set
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_RSI_91X is not set
CONFIG_WLAN_VENDOR_ST=y
# CONFIG_CW1200 is not set
CONFIG_WLAN_VENDOR_TI=y
# CONFIG_WL1251 is not set
# CONFIG_WL12XX is not set
# CONFIG_WL18XX is not set
# CONFIG_WLCORE is not set
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_ZD1211RW is not set
CONFIG_WLAN_VENDOR_QUANTENNA=y
# CONFIG_QTNFMAC_PCIE is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_VIRT_WIFI is not set
# CONFIG_WAN is not set
CONFIG_IEEE802154_DRIVERS=m
# CONFIG_IEEE802154_FAKELB is not set
# CONFIG_IEEE802154_AT86RF230 is not set
# CONFIG_IEEE802154_MRF24J40 is not set
# CONFIG_IEEE802154_CC2520 is not set
# CONFIG_IEEE802154_ATUSB is not set
# CONFIG_IEEE802154_ADF7242 is not set
# CONFIG_IEEE802154_CA8210 is not set
# CONFIG_IEEE802154_MCR20A is not set
# CONFIG_IEEE802154_HWSIM is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN

# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_SPARSEKMAP=m
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_APPLESPI is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y
CONFIG_MOUSE_PS2_SENTELIC=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
CONFIG_MOUSE_PS2_VMMOUSE=y
CONFIG_MOUSE_PS2_SMBUS=y
CONFIG_MOUSE_SERIAL=m
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
CONFIG_MOUSE_CYAPA=m
CONFIG_MOUSE_ELAN_I2C=m
CONFIG_MOUSE_ELAN_I2C_I2C=y
CONFIG_MOUSE_ELAN_I2C_SMBUS=y
CONFIG_MOUSE_VSXXXAA=m
# CONFIG_MOUSE_GPIO is not set
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
CONFIG_RMI4_CORE=m
CONFIG_RMI4_I2C=m
CONFIG_RMI4_SPI=m
CONFIG_RMI4_SMB=m
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=m
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
CONFIG_RMI4_F30=y
CONFIG_RMI4_F34=y
# CONFIG_RMI4_F3A is not set
CONFIG_RMI4_F55=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
CONFIG_SERIO_ALTERA_PS2=m
# CONFIG_SERIO_PS2MULT is not set
CONFIG_SERIO_ARC_PS2=m
# CONFIG_SERIO_GPIO_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=64
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_PERICOM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_BCM63XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
CONFIG_SERIAL_ARC=m
CONFIG_SERIAL_ARC_NR_PORTS=1
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_SYNCLINK_GT=m
CONFIG_N_HDLC=m
CONFIG_N_GSM=m
CONFIG_NOZOMI=m
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
# CONFIG_SERIAL_DEV_BUS is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_DMI_DECODE=y
CONFIG_IPMI_PLAT_DATA=y
CONFIG_IPMI_PANIC_EVENT=y
CONFIG_IPMI_PANIC_STRING=y
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_SSIF=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_INTEL=m
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_BA431 is not set
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=y
# CONFIG_HW_RANDOM_XIPHERA is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
CONFIG_DEVMEM=y
CONFIG_NVRAM=y
CONFIG_DEVPORT=y
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
# CONFIG_HPET_MMAP_DEFAULT is not set
CONFIG_HANGCHECK_TIMER=m
CONFIG_UV_MMTIMER=m
CONFIG_TCG_TPM=y
CONFIG_HW_RANDOM_TPM=y
CONFIG_TCG_TIS_CORE=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_SPI is not set
# CONFIG_TCG_TIS_I2C_CR50 is not set
CONFIG_TCG_TIS_I2C_ATMEL=m
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
CONFIG_TCG_CRB=y
# CONFIG_TCG_VTPM_PROXY is not set
CONFIG_TCG_TIS_ST33ZP24=m
CONFIG_TCG_TIS_ST33ZP24_I2C=m
# CONFIG_TCG_TIS_ST33ZP24_SPI is not set
CONFIG_TELCLOCK=m
# CONFIG_XILLYBUS is not set
# CONFIG_XILLYUSB is not set
# CONFIG_RANDOM_TRUST_CPU is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=m

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_REG is not set
CONFIG_I2C_MUX_MLXCPLD=m
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=y
CONFIG_I2C_ISCH=m
CONFIG_I2C_ISMT=m
CONFIG_I2C_PIIX4=m
CONFIG_I2C_NFORCE2=m
CONFIG_I2C_NFORCE2_S4985=m
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=m
CONFIG_I2C_VIA=m
CONFIG_I2C_VIAPRO=m

#
# ACPI drivers
#
CONFIG_I2C_SCMI=m

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=m
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=m
CONFIG_I2C_DESIGNWARE_BAYTRAIL=y
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=m
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_CP2615 is not set
CONFIG_I2C_PARPORT=m
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_MLXCPLD=m
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

CONFIG_I2C_STUB=m
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
# CONFIG_SPI_MEM is not set

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_BUTTERFLY is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_NXP_FLEXSPI is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_LM70_LLP is not set
# CONFIG_SPI_LANTIQ_SSC is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
CONFIG_SPI_LOOPBACK_TEST=m
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
CONFIG_SPI_DYNAMIC=y
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
CONFIG_PPS_CLIENT_LDISC=m
CONFIG_PPS_CLIENT_PARPORT=m
CONFIG_PPS_CLIENT_GPIO=m

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
# CONFIG_DP83640_PHY is not set
# CONFIG_PTP_1588_CLOCK_INES is not set
CONFIG_PTP_1588_CLOCK_KVM=m
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set
# end of PTP clock support

CONFIG_PINCTRL=y
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_SX150X is not set

#
# Intel pinctrl drivers
#
CONFIG_PINCTRL_BAYTRAIL=y
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_LYNXPOINT is not set
CONFIG_PINCTRL_INTEL=y
# CONFIG_PINCTRL_ALDERLAKE is not set
CONFIG_PINCTRL_BROXTON=m
CONFIG_PINCTRL_CANNONLAKE=m
CONFIG_PINCTRL_CEDARFORK=m
CONFIG_PINCTRL_DENVERTON=m
# CONFIG_PINCTRL_ELKHARTLAKE is not set
# CONFIG_PINCTRL_EMMITSBURG is not set
CONFIG_PINCTRL_GEMINILAKE=m
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_JASPERLAKE is not set
# CONFIG_PINCTRL_LAKEFIELD is not set
CONFIG_PINCTRL_LEWISBURG=m
CONFIG_PINCTRL_SUNRISEPOINT=m
# CONFIG_PINCTRL_TIGERLAKE is not set
# end of Intel pinctrl drivers

#
# Renesas pinctrl drivers
#
# end of Renesas pinctrl drivers

CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_EXAR is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
CONFIG_GPIO_ICH=m
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
# CONFIG_GPIO_WS16C48 is not set
# end of Port-mapped I/O GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# end of MFD GPIO expanders

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set
# end of PCI GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders

#
# USB GPIO expanders
#
# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

# CONFIG_W1 is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_RESTART is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_BD99954 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_ABITUGURU3=m
# CONFIG_SENSORS_AD7314 is not set
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
# CONFIG_SENSORS_ADM1177 is not set
CONFIG_SENSORS_ADM9240=m
CONFIG_SENSORS_ADT7X10=m
# CONFIG_SENSORS_ADT7310 is not set
CONFIG_SENSORS_ADT7410=m
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AQUACOMPUTER_D5NEXT is not set
# CONFIG_SENSORS_AS370 is not set
CONFIG_SENSORS_ASC7621=m
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
CONFIG_SENSORS_FAM15H_POWER=m
CONFIG_SENSORS_APPLESMC=m
CONFIG_SENSORS_ASB100=m
# CONFIG_SENSORS_ASPEED is not set
CONFIG_SENSORS_ATXP1=m
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DRIVETEMP is not set
CONFIG_SENSORS_DS620=m
CONFIG_SENSORS_DS1621=m
CONFIG_SENSORS_DELL_SMM=m
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
# CONFIG_SENSORS_FTSTEUTATES is not set
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
CONFIG_SENSORS_I5500=m
CONFIG_SENSORS_CORETEMP=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_POWR1220 is not set
CONFIG_SENSORS_LINEAGE=m
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2992 is not set
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
# CONFIG_SENSORS_LTC4222 is not set
CONFIG_SENSORS_LTC4245=m
# CONFIG_SENSORS_LTC4260 is not set
CONFIG_SENSORS_LTC4261=m
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX127 is not set
CONFIG_SENSORS_MAX16065=m
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6642=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_MAX6697=m
# CONFIG_SENSORS_MAX31790 is not set
CONFIG_SENSORS_MCP3021=m
# CONFIG_SENSORS_MLXREG_FAN is not set
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
# CONFIG_SENSORS_ADCXX is not set
CONFIG_SENSORS_LM63=m
# CONFIG_SENSORS_LM70 is not set
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LM95234=m
CONFIG_SENSORS_LM95241=m
CONFIG_SENSORS_LM95245=m
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_NCT6683 is not set
CONFIG_SENSORS_NCT6775=m
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_NZXT_KRAKEN2 is not set
# CONFIG_SENSORS_NZXT_SMART2 is not set
CONFIG_SENSORS_PCF8591=m
CONFIG_PMBUS=m
CONFIG_SENSORS_PMBUS=m
# CONFIG_SENSORS_ADM1266 is not set
CONFIG_SENSORS_ADM1275=m
# CONFIG_SENSORS_BEL_PFE is not set
# CONFIG_SENSORS_BPA_RS600 is not set
# CONFIG_SENSORS_DELTA_AHE50DC_FAN is not set
# CONFIG_SENSORS_FSP_3Y is not set
# CONFIG_SENSORS_IBM_CFFPS is not set
# CONFIG_SENSORS_DPS920AB is not set
# CONFIG_SENSORS_INSPUR_IPSPS is not set
# CONFIG_SENSORS_IR35221 is not set
# CONFIG_SENSORS_IR36021 is not set
# CONFIG_SENSORS_IR38064 is not set
# CONFIG_SENSORS_IRPS5401 is not set
# CONFIG_SENSORS_ISL68137 is not set
CONFIG_SENSORS_LM25066=m
CONFIG_SENSORS_LTC2978=m
# CONFIG_SENSORS_LTC3815 is not set
# CONFIG_SENSORS_MAX15301 is not set
CONFIG_SENSORS_MAX16064=m
# CONFIG_SENSORS_MAX16601 is not set
# CONFIG_SENSORS_MAX20730 is not set
# CONFIG_SENSORS_MAX20751 is not set
# CONFIG_SENSORS_MAX31785 is not set
CONFIG_SENSORS_MAX34440=m
CONFIG_SENSORS_MAX8688=m
# CONFIG_SENSORS_MP2888 is not set
# CONFIG_SENSORS_MP2975 is not set
# CONFIG_SENSORS_MP5023 is not set
# CONFIG_SENSORS_PIM4328 is not set
# CONFIG_SENSORS_PM6764TR is not set
# CONFIG_SENSORS_PXE1610 is not set
# CONFIG_SENSORS_Q54SJ108A2 is not set
# CONFIG_SENSORS_STPDDC60 is not set
# CONFIG_SENSORS_TPS40422 is not set
# CONFIG_SENSORS_TPS53679 is not set
CONFIG_SENSORS_UCD9000=m
CONFIG_SENSORS_UCD9200=m
# CONFIG_SENSORS_XDPE122 is not set
CONFIG_SENSORS_ZL6100=m
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
# CONFIG_SENSORS_EMC2103 is not set
CONFIG_SENSORS_EMC6W201=m
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
CONFIG_SENSORS_SCH5636=m
# CONFIG_SENSORS_STTS751 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
CONFIG_SENSORS_ADS7828=m
# CONFIG_SENSORS_ADS7871 is not set
CONFIG_SENSORS_AMC6821=m
CONFIG_SENSORS_INA209=m
CONFIG_SENSORS_INA2XX=m
# CONFIG_SENSORS_INA238 is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_TMP513 is not set
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
# CONFIG_SENSORS_W83773G is not set
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
# CONFIG_SENSORS_W83795_FANCTRL is not set
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
# CONFIG_SENSORS_XGENE is not set

#
# ACPI drivers
#
CONFIG_SENSORS_ACPI_POWER=m
CONFIG_SENSORS_ATK0110=m
# CONFIG_SENSORS_ASUS_WMI is not set
# CONFIG_SENSORS_ASUS_WMI_EC is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_BANG_BANG=y
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set

#
# Intel thermal drivers
#
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# end of ACPI INT340X thermal drivers

CONFIG_INTEL_PCH_THERMAL=m
# CONFIG_INTEL_TCC_COOLING is not set
# CONFIG_INTEL_MENLOW is not set
# end of Intel thermal drivers

CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
CONFIG_WATCHDOG_SYSFS=y
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
CONFIG_WDAT_WDT=m
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_MLX_WDT is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
CONFIG_ALIM1535_WDT=m
CONFIG_ALIM7101_WDT=m
# CONFIG_EBC_C384_WDT is not set
CONFIG_F71808E_WDT=m
# CONFIG_SP5100_TCO is not set
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=m
CONFIG_IBMASR=m
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=y
CONFIG_IE6XX_WDT=m
CONFIG_ITCO_WDT=y
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
CONFIG_HP_WATCHDOG=m
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
CONFIG_NV_TCO=m
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
CONFIG_SMSC_SCH311X_WDT=m
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_TQMX86_WDT is not set
CONFIG_VIA_WDT=m
CONFIG_W83627HF_WDT=m
CONFIG_W83877F_WDT=m
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=m
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
CONFIG_INTEL_MEI_WDT=m
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
# CONFIG_MEN_A21_WDT is not set

#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
CONFIG_WDTPCI=m

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
CONFIG_BCMA=m
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_PCI=y
# CONFIG_BCMA_HOST_SOC is not set
CONFIG_BCMA_DRIVER_PCI=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
CONFIG_BCMA_DRIVER_GPIO=y
# CONFIG_BCMA_DEBUG is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
CONFIG_LPC_ICH=y
CONFIG_LPC_SCH=m
CONFIG_MFD_INTEL_LPSS=y
CONFIG_MFD_INTEL_LPSS_ACPI=y
CONFIG_MFD_INTEL_LPSS_PCI=y
# CONFIG_MFD_INTEL_PMC_BXT is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=m
CONFIG_MFD_SM501_GPIO=y
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TQMX86 is not set
CONFIG_MFD_VX855=m
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_INTEL_M10_BMC is not set
# end of Multifunction device drivers

# CONFIG_REGULATOR is not set
CONFIG_RC_CORE=m
CONFIG_RC_MAP=m
CONFIG_LIRC=y
CONFIG_RC_DECODERS=y
CONFIG_IR_NEC_DECODER=m
CONFIG_IR_RC5_DECODER=m
CONFIG_IR_RC6_DECODER=m
CONFIG_IR_JVC_DECODER=m
CONFIG_IR_SONY_DECODER=m
CONFIG_IR_SANYO_DECODER=m
# CONFIG_IR_SHARP_DECODER is not set
CONFIG_IR_MCE_KBD_DECODER=m
# CONFIG_IR_XMP_DECODER is not set
CONFIG_IR_IMON_DECODER=m
# CONFIG_IR_RCMM_DECODER is not set
CONFIG_RC_DEVICES=y
# CONFIG_RC_ATI_REMOTE is not set
CONFIG_IR_ENE=m
# CONFIG_IR_IMON is not set
# CONFIG_IR_IMON_RAW is not set
# CONFIG_IR_MCEUSB is not set
CONFIG_IR_ITE_CIR=m
CONFIG_IR_FINTEK=m
CONFIG_IR_NUVOTON=m
# CONFIG_IR_REDRAT3 is not set
# CONFIG_IR_STREAMZAP is not set
CONFIG_IR_WINBOND_CIR=m
# CONFIG_IR_IGORPLUGUSB is not set
# CONFIG_IR_IGUANA is not set
# CONFIG_IR_TTUSBIR is not set
# CONFIG_RC_LOOPBACK is not set
CONFIG_IR_SERIAL=m
CONFIG_IR_SERIAL_TRANSMITTER=y
# CONFIG_RC_XBOX_DVD is not set
# CONFIG_IR_TOY is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

CONFIG_MEDIA_SUPPORT=m
CONFIG_MEDIA_SUPPORT_FILTER=y
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y

#
# Media device types
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_SDR_SUPPORT is not set
# CONFIG_MEDIA_PLATFORM_SUPPORT is not set
# CONFIG_MEDIA_TEST_SUPPORT is not set
# end of Media device types

#
# Media drivers
#

#
# Drivers filtered as selected at 'Filter media drivers'
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
# end of Media drivers

CONFIG_MEDIA_HIDE_ANCILLARY_SUBDRV=y

#
# Media ancillary drivers
#

#
# Media SPI Adapters
#
# end of Media SPI Adapters
# end of Media ancillary drivers

#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_INTEL_GTT=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=64
CONFIG_VGA_SWITCHEROO=y
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_DP_AUX_CHARDEV=y
CONFIG_DRM_DEBUG_SELFTEST=m
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
# CONFIG_DRM_DP_CEC is not set
CONFIG_DRM_TTM=m
CONFIG_DRM_VRAM_HELPER=m
CONFIG_DRM_TTM_HELPER=m
CONFIG_DRM_GEM_SHMEM_HELPER=m

#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
CONFIG_DRM_I2C_SIL164=m
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_I2C_NXP_TDA9950 is not set
# end of I2C encoder or helper chips

#
# ARM devices
#
# end of ARM devices

# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_FORCE_PROBE=""
CONFIG_DRM_I915_CAPTURE_ERROR=y
CONFIG_DRM_I915_COMPRESS_ERROR=y
CONFIG_DRM_I915_USERPTR=y
CONFIG_DRM_I915_GVT=y
# CONFIG_DRM_I915_GVT_KVMGT is not set
CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VKMS is not set
# CONFIG_DRM_VMWGFX is not set
CONFIG_DRM_GMA500=m
# CONFIG_DRM_UDL is not set
CONFIG_DRM_AST=m
CONFIG_DRM_MGAG200=m
CONFIG_DRM_QXL=m
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN is not set
# CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set
# end of Display Panels

CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# end of Display Interface Bridges

# CONFIG_DRM_ETNAVIV is not set
CONFIG_DRM_BOCHS=m
CONFIG_DRM_CIRRUS_QEMU=m
# CONFIG_DRM_GM12U320 is not set
# CONFIG_DRM_SIMPLEDRM is not set
# CONFIG_TINYDRM_HX8357D is not set
# CONFIG_TINYDRM_ILI9163 is not set
# CONFIG_TINYDRM_ILI9225 is not set
# CONFIG_TINYDRM_ILI9341 is not set
# CONFIG_TINYDRM_ILI9486 is not set
# CONFIG_TINYDRM_MI0283QT is not set
# CONFIG_TINYDRM_REPAPER is not set
# CONFIG_TINYDRM_ST7586 is not set
# CONFIG_TINYDRM_ST7735R is not set
# CONFIG_DRM_VBOXVIDEO is not set
# CONFIG_DRM_GUD is not set
# CONFIG_DRM_LEGACY is not set
CONFIG_DRM_EXPORT_FOR_TESTS=y
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
CONFIG_DRM_NOMODESET=y
CONFIG_DRM_LIB_RANDOM=y
CONFIG_DRM_PRIVACY_SCREEN=y

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_MODE_HELPERS is not set
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SM501 is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SSD1307 is not set
# CONFIG_FB_SM712 is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_L4F00242T03 is not set
# CONFIG_LCD_LMS283GF05 is not set
# CONFIG_LCD_LTV350QV is not set
# CONFIG_LCD_ILI922X is not set
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
CONFIG_LCD_PLATFORM=m
# CONFIG_LCD_AMS369FG06 is not set
# CONFIG_LCD_LMS501KF03 is not set
# CONFIG_LCD_HX8357 is not set
# CONFIG_LCD_OTM3225A is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
# CONFIG_BACKLIGHT_PWM is not set
CONFIG_BACKLIGHT_APPLE=m
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
CONFIG_BACKLIGHT_LP855X=m
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# end of Backlight & LCD device support

CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
# end of Console display driver support

CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
# end of Graphics support

# CONFIG_SOUND is not set

#
# HID support
#
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
CONFIG_UHID=m
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACCUTOUCH is not set
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=m
# CONFIG_HID_APPLEIR is not set
CONFIG_HID_ASUS=m
CONFIG_HID_AUREAL=m
CONFIG_HID_BELKIN=m
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_BIGBEN_FF is not set
CONFIG_HID_CHERRY=m
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
CONFIG_HID_CMEDIA=m
# CONFIG_HID_CP2112 is not set
# CONFIG_HID_CREATIVE_SB0540 is not set
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
# CONFIG_DRAGONRISE_FF is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELAN is not set
CONFIG_HID_ELECOM=m
# CONFIG_HID_ELO is not set
CONFIG_HID_EZKEY=m
# CONFIG_HID_FT260 is not set
CONFIG_HID_GEMBIRD=m
CONFIG_HID_GFRM=m
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_GT683R is not set
CONFIG_HID_KEYTOUCH=m
CONFIG_HID_KYE=m
# CONFIG_HID_UCLOGIC is not set
CONFIG_HID_WALTOP=m
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_XIAOMI is not set
CONFIG_HID_GYRATION=m
CONFIG_HID_ICADE=m
CONFIG_HID_ITE=m
CONFIG_HID_JABRA=m
CONFIG_HID_TWINHAN=m
CONFIG_HID_KENSINGTON=m
CONFIG_HID_LCPOWER=m
CONFIG_HID_LED=m
CONFIG_HID_LENOVO=m
# CONFIG_HID_LETSKETCH is not set
CONFIG_HID_LOGITECH=m
CONFIG_HID_LOGITECH_DJ=m
CONFIG_HID_LOGITECH_HIDPP=m
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
CONFIG_HID_MAGICMOUSE=y
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_REDRAGON is not set
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MONTEREY=m
CONFIG_HID_MULTITOUCH=m
# CONFIG_HID_NINTENDO is not set
CONFIG_HID_NTI=m
# CONFIG_HID_NTRIG is not set
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
# CONFIG_PANTHERLORD_FF is not set
# CONFIG_HID_PENMOUNT is not set
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
CONFIG_HID_PICOLCD_CIR=y
CONFIG_HID_PLANTRONICS=m
CONFIG_HID_PRIMAX=m
# CONFIG_HID_RETRODE is not set
# CONFIG_HID_ROCCAT is not set
CONFIG_HID_SAITEK=m
CONFIG_HID_SAMSUNG=m
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SONY is not set
CONFIG_HID_SPEEDLINK=m
# CONFIG_HID_STEAM is not set
CONFIG_HID_STEELSERIES=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_RMI=m
CONFIG_HID_GREENASIA=m
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=m
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TIVO=m
CONFIG_HID_TOPSEED=m
CONFIG_HID_THINGM=m
CONFIG_HID_THRUSTMASTER=m
# CONFIG_THRUSTMASTER_FF is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_U2FZERO is not set
# CONFIG_HID_WACOM is not set
CONFIG_HID_WIIMOTE=m
CONFIG_HID_XINMO=m
CONFIG_HID_ZEROPLUS=m
# CONFIG_ZEROPLUS_FF is not set
CONFIG_HID_ZYDACRON=m
CONFIG_HID_SENSOR_HUB=y
CONFIG_HID_SENSOR_CUSTOM_SENSOR=m
CONFIG_HID_ALPS=m
# CONFIG_HID_MCP2221 is not set
# end of Special HID drivers

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
# end of USB HID support

#
# I2C HID support
#
# CONFIG_I2C_HID_ACPI is not set
# end of I2C HID support

#
# Intel ISH HID support
#
CONFIG_INTEL_ISH_HID=m
# CONFIG_INTEL_ISH_FIRMWARE_DOWNLOADER is not set
# end of Intel ISH HID support

#
# AMD SFH HID Support
#
# CONFIG_AMD_SFH_HID is not set
# end of AMD SFH HID Support
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_FEW_INIT_RETRIES is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_PRODUCTLIST is not set
CONFIG_USB_LEDS_TRIGGER_USBPORT=y
CONFIG_USB_AUTOSUSPEND_DELAY=2
CONFIG_USB_MON=y

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=y
# CONFIG_USB_XHCI_DBGCAP is not set
CONFIG_USB_XHCI_PCI=y
# CONFIG_USB_XHCI_PCI_RENESAS is not set
# CONFIG_USB_XHCI_PLATFORM is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_FSL is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_BCMA is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_CDNS_SUPPORT is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
# CONFIG_USB_SERIAL_SIMPLE is not set
# CONFIG_USB_SERIAL_AIRCABLE is not set
# CONFIG_USB_SERIAL_ARK3116 is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_CH341 is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_CP210X is not set
# CONFIG_USB_SERIAL_CYPRESS_M8 is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IPAQ is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
# CONFIG_USB_SERIAL_F81232 is not set
# CONFIG_USB_SERIAL_F8153X is not set
# CONFIG_USB_SERIAL_GARMIN is not set
# CONFIG_USB_SERIAL_IPW is not set
# CONFIG_USB_SERIAL_IUU is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_KOBIL_SCT is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_METRO is not set
# CONFIG_USB_SERIAL_MOS7720 is not set
# CONFIG_USB_SERIAL_MOS7840 is not set
# CONFIG_USB_SERIAL_MXUPORT is not set
# CONFIG_USB_SERIAL_NAVMAN is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_OTI6858 is not set
# CONFIG_USB_SERIAL_QCAUX is not set
# CONFIG_USB_SERIAL_QUALCOMM is not set
# CONFIG_USB_SERIAL_SPCP8X5 is not set
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set
# CONFIG_USB_SERIAL_SYMBOL is not set
# CONFIG_USB_SERIAL_TI is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_OPTION is not set
# CONFIG_USB_SERIAL_OMNINET is not set
# CONFIG_USB_SERIAL_OPTICON is not set
# CONFIG_USB_SERIAL_XSENS_MT is not set
# CONFIG_USB_SERIAL_WISHBONE is not set
# CONFIG_USB_SERIAL_SSU100 is not set
# CONFIG_USB_SERIAL_QT2 is not set
# CONFIG_USB_SERIAL_UPD78F0730 is not set
# CONFIG_USB_SERIAL_XR is not set
CONFIG_USB_SERIAL_DEBUG=m

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_APPLE_MFI_FASTCHARGE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set
# CONFIG_USB_ATM is not set

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# end of USB Physical Layer drivers

# CONFIG_USB_GADGET is not set
CONFIG_TYPEC=y
# CONFIG_TYPEC_TCPM is not set
CONFIG_TYPEC_UCSI=y
# CONFIG_UCSI_CCG is not set
CONFIG_UCSI_ACPI=y
# CONFIG_TYPEC_TPS6598X is not set
# CONFIG_TYPEC_STUSB160X is not set

#
# USB Type-C Multiplexer/DeMultiplexer Switch support
#
# CONFIG_TYPEC_MUX_PI3USB30532 is not set
# end of USB Type-C Multiplexer/DeMultiplexer Switch support

#
# USB Type-C Alternate Mode drivers
#
# CONFIG_TYPEC_DP_ALTMODE is not set
# end of USB Type-C Alternate Mode drivers

# CONFIG_USB_ROLE_SWITCH is not set
CONFIG_MMC=m
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
CONFIG_MMC_SDHCI_PCI=m
CONFIG_MMC_RICOH_MMC=y
CONFIG_MMC_SDHCI_ACPI=m
CONFIG_MMC_SDHCI_PLTFM=m
# CONFIG_MMC_SDHCI_F_SDH30 is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
# CONFIG_MMC_REALTEK_PCI is not set
CONFIG_MMC_CQHCI=m
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MMC_SDHCI_XENON is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
# CONFIG_LEDS_APU is not set
CONFIG_LEDS_LM3530=m
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=m
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
CONFIG_LEDS_CLEVO_MAIL=m
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_BD2802 is not set
CONFIG_LEDS_INTEL_SS4200=m
CONFIG_LEDS_LT3593=m
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
CONFIG_LEDS_MLXCPLD=m
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set

#
# Flash and Torch LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_ONESHOT=m
# CONFIG_LEDS_TRIGGER_DISK is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
CONFIG_LEDS_TRIGGER_GPIO=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=m
CONFIG_LEDS_TRIGGER_CAMERA=m
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
CONFIG_LEDS_TRIGGER_AUDIO=m
# CONFIG_LEDS_TRIGGER_TTY is not set

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_GHES=y
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_IE31200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I5000=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
CONFIG_EDAC_SBRIDGE=m
CONFIG_EDAC_SKX=m
# CONFIG_EDAC_I10NM is not set
CONFIG_EDAC_PND2=m
# CONFIG_EDAC_IGEN6 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_SYSTOHC is not set
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_LIB_KUNIT_TEST=m
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
CONFIG_RTC_DRV_DS1307=m
# CONFIG_RTC_DRV_DS1307_CENTURY is not set
CONFIG_RTC_DRV_DS1374=m
# CONFIG_RTC_DRV_DS1374_WDT is not set
CONFIG_RTC_DRV_DS1672=m
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
CONFIG_RTC_DRV_ISL12022=m
CONFIG_RTC_DRV_X1205=m
CONFIG_RTC_DRV_PCF8523=m
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_M41T80=m
CONFIG_RTC_DRV_M41T80_WDT=y
CONFIG_RTC_DRV_BQ32K=m
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=m
# CONFIG_RTC_DRV_RX8010 is not set
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
CONFIG_RTC_DRV_EM3027=m
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
CONFIG_RTC_DRV_RX4581=m
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
CONFIG_RTC_DRV_DS3232=m
CONFIG_RTC_DRV_DS3232_HWMON=y
# CONFIG_RTC_DRV_PCF2127 is not set
CONFIG_RTC_DRV_RV3029C2=m
# CONFIG_RTC_DRV_RV3029_HWMON is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_DS2404=m
CONFIG_RTC_DRV_STK17TA8=m
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
CONFIG_RTC_DRV_MSM6242=m
CONFIG_RTC_DRV_BQ4802=m
CONFIG_RTC_DRV_RP5C01=m
CONFIG_RTC_DRV_V3020=m

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
# CONFIG_ALTERA_MSGDMA is not set
CONFIG_INTEL_IDMA64=m
# CONFIG_INTEL_IDXD is not set
# CONFIG_INTEL_IDXD_COMPAT is not set
CONFIG_INTEL_IOATDMA=m
# CONFIG_PLX_DMA is not set
# CONFIG_AMD_PTDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=y
CONFIG_DW_DMAC=m
CONFIG_DW_DMAC_PCI=y
# CONFIG_DW_EDMA is not set
# CONFIG_DW_EDMA_PCIE is not set
CONFIG_HSU_DMA=y
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
CONFIG_DMATEST=m
CONFIG_DMA_ENGINE_RAID=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_UDMABUF is not set
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options

CONFIG_DCA=m
# CONFIG_AUXDISPLAY is not set
# CONFIG_PANEL is not set
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
# CONFIG_UIO_DMEM_GENIRQ is not set
CONFIG_UIO_AEC=m
CONFIG_UIO_SERCOS3=m
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
# CONFIG_UIO_PRUSS is not set
# CONFIG_UIO_MF624 is not set
CONFIG_VFIO=m
CONFIG_VFIO_IOMMU_TYPE1=m
CONFIG_VFIO_VIRQFD=m
CONFIG_VFIO_NOIOMMU=y
CONFIG_VFIO_PCI_CORE=m
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI=m
# CONFIG_VFIO_PCI_VGA is not set
# CONFIG_VFIO_PCI_IGD is not set
CONFIG_VFIO_MDEV=m
CONFIG_IRQ_BYPASS_MANAGER=m
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
# CONFIG_VIRTIO_PMEM is not set
CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_MEM=m
CONFIG_VIRTIO_INPUT=m
# CONFIG_VIRTIO_MMIO is not set
CONFIG_VIRTIO_DMA_SHARED_BUFFER=m
# CONFIG_VDPA is not set
CONFIG_VHOST_IOTLB=m
CONFIG_VHOST=m
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=m
# CONFIG_VHOST_SCSI is not set
CONFIG_VHOST_VSOCK=m
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACPI_WMI=m
CONFIG_WMI_BMOF=m
# CONFIG_HUAWEI_WMI is not set
# CONFIG_UV_SYSFS is not set
CONFIG_MXM_WMI=m
# CONFIG_PEAQ_WMI is not set
# CONFIG_NVIDIA_WMI_EC_BACKLIGHT is not set
# CONFIG_XIAOMI_WMI is not set
# CONFIG_GIGABYTE_WMI is not set
# CONFIG_YOGABOOK_WMI is not set
CONFIG_ACERHDF=m
# CONFIG_ACER_WIRELESS is not set
CONFIG_ACER_WMI=m
# CONFIG_AMD_PMC is not set
# CONFIG_ADV_SWBUTTON is not set
CONFIG_APPLE_GMUX=m
CONFIG_ASUS_LAPTOP=m
# CONFIG_ASUS_WIRELESS is not set
CONFIG_ASUS_WMI=m
CONFIG_ASUS_NB_WMI=m
# CONFIG_ASUS_TF103C_DOCK is not set
# CONFIG_MERAKI_MX100 is not set
CONFIG_EEEPC_LAPTOP=m
CONFIG_EEEPC_WMI=m
# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
CONFIG_AMILO_RFKILL=m
CONFIG_FUJITSU_LAPTOP=m
CONFIG_FUJITSU_TABLET=m
# CONFIG_GPD_POCKET_FAN is not set
CONFIG_HP_ACCEL=m
# CONFIG_WIRELESS_HOTKEY is not set
CONFIG_HP_WMI=m
# CONFIG_IBM_RTL is not set
CONFIG_IDEAPAD_LAPTOP=m
CONFIG_SENSORS_HDAPS=m
CONFIG_THINKPAD_ACPI=m
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
# CONFIG_THINKPAD_LMI is not set
# CONFIG_INTEL_ATOMISP2_PM is not set
# CONFIG_INTEL_SAR_INT1092 is not set
CONFIG_INTEL_PMC_CORE=m

#
# Intel Speed Select Technology interface support
#
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
# end of Intel Speed Select Technology interface support

CONFIG_INTEL_WMI=y
# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
CONFIG_INTEL_WMI_THUNDERBOLT=m
CONFIG_INTEL_HID_EVENT=m
CONFIG_INTEL_VBTN=m
# CONFIG_INTEL_INT0002_VGPIO is not set
CONFIG_INTEL_OAKTRAIL=m
# CONFIG_INTEL_ISHTP_ECLITE is not set
# CONFIG_INTEL_PUNIT_IPC is not set
CONFIG_INTEL_RST=m
# CONFIG_INTEL_SMARTCONNECT is not set
CONFIG_INTEL_TURBO_MAX_3=y
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
# CONFIG_INTEL_VSEC is not set
CONFIG_MSI_LAPTOP=m
CONFIG_MSI_WMI=m
# CONFIG_PCENGINES_APU2 is not set
# CONFIG_BARCO_P50_GPIO is not set
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_SAMSUNG_Q10=m
CONFIG_TOSHIBA_BT_RFKILL=m
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
CONFIG_ACPI_CMPC=m
CONFIG_COMPAL_LAPTOP=m
# CONFIG_LG_LAPTOP is not set
CONFIG_PANASONIC_LAPTOP=m
CONFIG_SONY_LAPTOP=m
CONFIG_SONYPI_COMPAT=y
# CONFIG_SYSTEM76_ACPI is not set
CONFIG_TOPSTAR_LAPTOP=m
# CONFIG_I2C_MULTI_INSTANTIATE is not set
CONFIG_MLX_PLATFORM=m
CONFIG_INTEL_IPS=m
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_SIEMENS_SIMATIC_IPC is not set
CONFIG_PMC_ATOM=y
# CONFIG_CHROME_PLATFORMS is not set
CONFIG_MELLANOX_PLATFORM=y
CONFIG_MLXREG_HOTPLUG=m
# CONFIG_MLXREG_IO is not set
# CONFIG_MLXREG_LC is not set
CONFIG_SURFACE_PLATFORMS=y
# CONFIG_SURFACE3_WMI is not set
# CONFIG_SURFACE_3_POWER_OPREGION is not set
# CONFIG_SURFACE_GPE is not set
# CONFIG_SURFACE_HOTPLUG is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_LAN966X is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_XILINX_VCU is not set
CONFIG_HWSPINLOCK=y

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers

CONFIG_MAILBOX=y
CONFIG_PCC=y
# CONFIG_ALTERA_MBOX is not set
CONFIG_IOMMU_IOVA=y
CONFIG_IOASID=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_IOMMU_DMA=y
# CONFIG_AMD_IOMMU is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_SVM is not set
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON=y
CONFIG_IRQ_REMAP=y
# CONFIG_VIRTIO_IOMMU is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
CONFIG_NTB=m
# CONFIG_NTB_MSI is not set
# CONFIG_NTB_AMD is not set
# CONFIG_NTB_IDT is not set
# CONFIG_NTB_INTEL is not set
# CONFIG_NTB_EPF is not set
# CONFIG_NTB_SWITCHTEC is not set
# CONFIG_NTB_PINGPONG is not set
# CONFIG_NTB_TOOL is not set
# CONFIG_NTB_PERF is not set
# CONFIG_NTB_TRANSPORT is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
# CONFIG_PWM_DWC is not set
CONFIG_PWM_LPSS=m
CONFIG_PWM_LPSS_PCI=m
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_PCA9685 is not set

#
# IRQ chip support
#
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# end of PHY Subsystem

CONFIG_POWERCAP=y
CONFIG_INTEL_RAPL_CORE=m
CONFIG_INTEL_RAPL=m
# CONFIG_IDLE_INJECT is not set
# CONFIG_DTPM is not set
# CONFIG_MCB is not set

#
# Performance monitor support
#
# end of Performance monitor support

CONFIG_RAS=y
# CONFIG_RAS_CEC is not set
# CONFIG_USB4 is not set

#
# Android
#
# CONFIG_ANDROID is not set
# end of Android

CONFIG_LIBNVDIMM=m
CONFIG_BLK_DEV_PMEM=m
CONFIG_ND_BLK=m
CONFIG_ND_CLAIM=y
CONFIG_ND_BTT=m
CONFIG_BTT=y
CONFIG_ND_PFN=m
CONFIG_NVDIMM_PFN=y
CONFIG_NVDIMM_DAX=y
CONFIG_NVDIMM_KEYS=y
CONFIG_DAX=y
CONFIG_DEV_DAX=m
CONFIG_DEV_DAX_PMEM=m
CONFIG_DEV_DAX_KMEM=m
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_RMEM is not set

#
# HW tracing support
#
CONFIG_STM=m
# CONFIG_STM_PROTO_BASIC is not set
# CONFIG_STM_PROTO_SYS_T is not set
CONFIG_STM_DUMMY=m
CONFIG_STM_SOURCE_CONSOLE=m
CONFIG_STM_SOURCE_HEARTBEAT=m
CONFIG_STM_SOURCE_FTRACE=m
CONFIG_INTEL_TH=m
CONFIG_INTEL_TH_PCI=m
CONFIG_INTEL_TH_ACPI=m
CONFIG_INTEL_TH_GTH=m
CONFIG_INTEL_TH_STH=m
CONFIG_INTEL_TH_MSU=m
CONFIG_INTEL_TH_PTI=m
# CONFIG_INTEL_TH_DEBUG is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_TEE is not set
# CONFIG_UNISYS_VISORBUS is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_MOST is not set
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_EXT4_KUNIT_TESTS=m
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_SUPPORT_V4=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
CONFIG_XFS_ONLINE_SCRUB=y
# CONFIG_XFS_ONLINE_REPAIR is not set
CONFIG_XFS_DEBUG=y
CONFIG_XFS_ASSERT_FATAL=y
CONFIG_GFS2_FS=m
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_BTRFS_FS_REF_VERIFY is not set
# CONFIG_NILFS2_FS is not set
CONFIG_F2FS_FS=m
CONFIG_F2FS_STAT_FS=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_FS_POSIX_ACL=y
# CONFIG_F2FS_FS_SECURITY is not set
# CONFIG_F2FS_CHECK_FS is not set
# CONFIG_F2FS_FAULT_INJECTION is not set
# CONFIG_F2FS_FS_COMPRESSION is not set
CONFIG_F2FS_IOSTAT=y
CONFIG_FS_DAX=y
CONFIG_FS_DAX_PMD=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_ENCRYPTION_ALGS=y
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
# CONFIG_VIRTIO_FS is not set
CONFIG_OVERLAY_FS=m
# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set
# CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW is not set
# CONFIG_OVERLAY_FS_INDEX is not set
# CONFIG_OVERLAY_FS_XINO_AUTO is not set
# CONFIG_OVERLAY_FS_METACOPY is not set

#
# Caches
#
CONFIG_NETFS_SUPPORT=m
CONFIG_NETFS_STATS=y
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_DEBUG is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_ERROR_INJECTION is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
# CONFIG_FAT_DEFAULT_UTF8 is not set
CONFIG_FAT_KUNIT_TEST=m
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_VMCORE_DEVICE_DUMP=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_TMPFS_INODE64 is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_HUGETLB_PAGE_FREE_VMEMMAP=y
# CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON is not set
CONFIG_MEMFD_CREATE=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=y
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=m
CONFIG_CRAMFS_BLOCKDEV=y
CONFIG_SQUASHFS=m
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
# CONFIG_SQUASHFS_DECOMP_SINGLE is not set
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZ4 is not set
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
# CONFIG_SQUASHFS_ZSTD is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
CONFIG_PSTORE_DEFLATE_COMPRESS=y
# CONFIG_PSTORE_LZO_COMPRESS is not set
# CONFIG_PSTORE_LZ4_COMPRESS is not set
# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
# CONFIG_PSTORE_842_COMPRESS is not set
# CONFIG_PSTORE_ZSTD_COMPRESS is not set
CONFIG_PSTORE_COMPRESS=y
CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
# CONFIG_PSTORE_BLK is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EROFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
# CONFIG_NFS_V2 is not set
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DEBUG=y
CONFIG_NFS_DISABLE_UDP_SUPPORT=y
# CONFIG_NFS_V4_2_READ_PLUS is not set
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_PNFS=y
# CONFIG_NFSD_BLOCKLAYOUT is not set
CONFIG_NFSD_SCSILAYOUT=y
# CONFIG_NFSD_FLEXFILELAYOUT is not set
# CONFIG_NFSD_V4_2_INTER_SSC is not set
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_NFS_V4_2_SSC_HELPER=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES is not set
CONFIG_SUNRPC_DEBUG=y
CONFIG_CEPH_FS=m
# CONFIG_CEPH_FSCACHE is not set
CONFIG_CEPH_FS_POSIX_ACL=y
# CONFIG_CEPH_FS_SECURITY_LABEL is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS2=y
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_CIFS_SWN_UPCALL is not set
# CONFIG_CIFS_FSCACHE is not set
# CONFIG_SMB_SERVER is not set
CONFIG_SMBFS_COMMON=m
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=m
CONFIG_NLS_MAC_CELTIC=m
CONFIG_NLS_MAC_CENTEURO=m
CONFIG_NLS_MAC_CROATIAN=m
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=m
CONFIG_NLS_MAC_ICELAND=m
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
CONFIG_NLS_MAC_TURKISH=m
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
CONFIG_PERSISTENT_KEYRINGS=y
CONFIG_TRUSTED_KEYS=y
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_KEY_DH_OPERATIONS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITY_WRITABLE_HOOKS=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_PAGE_TABLE_ISOLATION=y
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
CONFIG_INTEL_TXT=y
CONFIG_LSM_MMAP_MIN_ADDR=65535
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_FORTIFY_SOURCE=y
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS=9
CONFIG_SECURITY_SELINUX_SID2STR_CACHE_SIZE=256
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_LOADPIN is not set
CONFIG_SECURITY_YAMA=y
# CONFIG_SECURITY_SAFESETID is not set
# CONFIG_SECURITY_LOCKDOWN_LSM is not set
# CONFIG_SECURITY_LANDLOCK is not set
CONFIG_INTEGRITY=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_TRUSTED_KEYRING=y
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_AUDIT=y
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_LSM_RULES=y
# CONFIG_IMA_TEMPLATE is not set
CONFIG_IMA_NG_TEMPLATE=y
# CONFIG_IMA_SIG_TEMPLATE is not set
CONFIG_IMA_DEFAULT_TEMPLATE="ima-ng"
CONFIG_IMA_DEFAULT_HASH_SHA1=y
# CONFIG_IMA_DEFAULT_HASH_SHA256 is not set
# CONFIG_IMA_DEFAULT_HASH_SHA512 is not set
CONFIG_IMA_DEFAULT_HASH="sha1"
# CONFIG_IMA_WRITE_POLICY is not set
# CONFIG_IMA_READ_POLICY is not set
CONFIG_IMA_APPRAISE=y
# CONFIG_IMA_ARCH_POLICY is not set
# CONFIG_IMA_APPRAISE_BUILD_POLICY is not set
CONFIG_IMA_APPRAISE_BOOTPARAM=y
# CONFIG_IMA_APPRAISE_MODSIG is not set
CONFIG_IMA_TRUSTED_KEYRING=y
# CONFIG_IMA_BLACKLIST_KEYRING is not set
# CONFIG_IMA_LOAD_X509 is not set
CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS=y
CONFIG_IMA_QUEUE_EARLY_BOOT_KEYS=y
# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
# CONFIG_IMA_DISABLE_HTABLE is not set
CONFIG_EVM=y
CONFIG_EVM_ATTR_FSUUID=y
# CONFIG_EVM_ADD_XATTRS is not set
# CONFIG_EVM_LOAD_X509 is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,selinux,smack,tomoyo,apparmor,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_INIT_STACK_NONE=y
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
# end of Memory initialization
# end of Kernel hardening options
# end of Security options

CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=m
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECC=m
CONFIG_CRYPTO_ECDH=m
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
# CONFIG_CRYPTO_CURVE25519_X86 is not set

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CHACHA20POLY1305=m
# CONFIG_CRYPTO_AEGIS128 is not set
# CONFIG_CRYPTO_AEGIS128_AESNI_SSE2 is not set
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_OFB is not set
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
# CONFIG_CRYPTO_KEYWRAP is not set
# CONFIG_CRYPTO_NHPOLY1305_SSE2 is not set
# CONFIG_CRYPTO_NHPOLY1305_AVX2 is not set
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_ESSIV=m

#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRC32_PCLMUL=m
CONFIG_CRYPTO_XXHASH=m
CONFIG_CRYPTO_BLAKE2B=m
# CONFIG_CRYPTO_BLAKE2S is not set
# CONFIG_CRYPTO_BLAKE2S_X86 is not set
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRCT10DIF_PCLMUL=m
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=m
CONFIG_CRYPTO_POLY1305_X86_64=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA1_SSSE3=y
CONFIG_CRYPTO_SHA256_SSSE3=y
CONFIG_CRYPTO_SHA512_SSSE3=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=m
# CONFIG_CRYPTO_SM3 is not set
# CONFIG_CRYPTO_STREEBOG is not set
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
CONFIG_CRYPTO_BLOWFISH_X86_64=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAMELLIA_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64=m
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST5_AVX_X86_64=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_CAST6_AVX_X86_64=m
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_CHACHA20=m
CONFIG_CRYPTO_CHACHA20_X86_64=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=m
# CONFIG_CRYPTO_SM4 is not set
# CONFIG_CRYPTO_SM4_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_SM4_AESNI_AVX2_X86_64 is not set
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_TWOFISH_X86_64=m
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=m
CONFIG_CRYPTO_TWOFISH_AVX_X86_64=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
# CONFIG_CRYPTO_ZSTD is not set

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
CONFIG_CRYPTO_DRBG_CTR=y
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_USER_API_RNG=y
# CONFIG_CRYPTO_USER_API_RNG_CAVP is not set
CONFIG_CRYPTO_USER_API_AEAD=y
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
# CONFIG_CRYPTO_STATS is not set
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=m
CONFIG_CRYPTO_DEV_PADLOCK_AES=m
CONFIG_CRYPTO_DEV_PADLOCK_SHA=m
# CONFIG_CRYPTO_DEV_ATMEL_ECC is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA204A is not set
CONFIG_CRYPTO_DEV_CCP=y
CONFIG_CRYPTO_DEV_CCP_DD=m
CONFIG_CRYPTO_DEV_SP_CCP=y
CONFIG_CRYPTO_DEV_CCP_CRYPTO=m
CONFIG_CRYPTO_DEV_SP_PSP=y
# CONFIG_CRYPTO_DEV_CCP_DEBUGFS is not set
CONFIG_CRYPTO_DEV_QAT=m
CONFIG_CRYPTO_DEV_QAT_DH895xCC=m
CONFIG_CRYPTO_DEV_QAT_C3XXX=m
CONFIG_CRYPTO_DEV_QAT_C62X=m
# CONFIG_CRYPTO_DEV_QAT_4XXX is not set
CONFIG_CRYPTO_DEV_QAT_DH895xCCVF=m
CONFIG_CRYPTO_DEV_QAT_C3XXXVF=m
CONFIG_CRYPTO_DEV_QAT_C62XVF=m
CONFIG_CRYPTO_DEV_NITROX=m
CONFIG_CRYPTO_DEV_NITROX_CNN55XX=m
# CONFIG_CRYPTO_DEV_VIRTIO is not set
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
# CONFIG_ASYMMETRIC_TPM_KEY_SUBTYPE is not set
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
CONFIG_PKCS7_MESSAGE_PARSER=y
# CONFIG_PKCS7_TEST_KEY is not set
CONFIG_SIGNED_PE_FILE_VERIFICATION=y

#
# Certificates for signature checking
#
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
CONFIG_MODULE_SIG_KEY_TYPE_RSA=y
# CONFIG_MODULE_SIG_KEY_TYPE_ECDSA is not set
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
# CONFIG_SECONDARY_TRUSTED_KEYRING is not set
CONFIG_SYSTEM_BLACKLIST_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
# CONFIG_SYSTEM_REVOCATION_LIST is not set
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_RAID6_PQ_BENCHMARK=y
CONFIG_LINEAR_RANGES=m
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_CORDIC=m
CONFIG_PRIME_NUMBERS=m
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_ARC4=m
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA=m
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=m
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
CONFIG_CRYPTO_ARCH_HAVE_LIB_POLY1305=m
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=m
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines

CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_CRC8=m
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMPRESS=m
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_ENC8=y
CONFIG_REED_SOLOMON_DEC8=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_SWIOTLB=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_GLOB_SELFTEST=m
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_SIGNATURE=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_MEMREGION=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_ARCH_HAS_COPY_MC=y
CONFIG_ARCH_STACKWALK=y
CONFIG_SBITMAP=y
# end of Library routines

CONFIG_ASN1_ENCODER=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
# CONFIG_DEBUG_INFO_COMPRESSED is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
CONFIG_DEBUG_INFO_DWARF4=y
# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_PAHOLE_HAS_SPLIT_BTF=y
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=8192
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_STACK_VALIDATION=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_UBSAN is not set
CONFIG_HAVE_ARCH_KCSAN=y
# end of Generic Kernel Debugging Instruments

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# end of Networking Debugging

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_PAGE_TABLE_CHECK is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
# CONFIG_DEBUG_WX is not set
CONFIG_GENERIC_PTDUMP=y
# CONFIG_PTDUMP_DEBUGFS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VM_PGTABLE is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# CONFIG_KASAN is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
# end of Memory Debugging

CONFIG_DEBUG_SHIRQ=y

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=1
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=480
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_WQ_WATCHDOG=y
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# CONFIG_CSD_LOCK_WAIT_DEBUG is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set

#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_BUG_ON_DATA_CORRUPTION=y
# end of Debug kernel data structures

# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
CONFIG_LATENCYTOP=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_OBJTOOL_MCOUNT=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_BOOTTIME_TRACING is not set
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_STACK_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_HWLAT_TRACER=y
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_MMIOTRACE is not set
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENTS=y
# CONFIG_KPROBE_EVENTS_ON_NOTRACE is not set
CONFIG_UPROBE_EVENTS=y
CONFIG_BPF_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
# CONFIG_BPF_KPROBE_OVERRIDE is not set
CONFIG_FTRACE_MCOUNT_RECORD=y
CONFIG_FTRACE_MCOUNT_USE_CC=y
CONFIG_TRACING_MAP=y
CONFIG_SYNTH_EVENTS=y
CONFIG_HIST_TRIGGERS=y
# CONFIG_TRACE_EVENT_INJECT is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_TRACE_EVAL_MAP_FILE is not set
# CONFIG_FTRACE_RECORD_RECURSION is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_FTRACE_SORT_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_SYNTH_EVENT_GEN_TEST is not set
# CONFIG_KPROBE_EVENT_GEN_TEST is not set
# CONFIG_HIST_TRIGGERS_DEBUG is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
# CONFIG_SAMPLES is not set
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
# CONFIG_IO_STRICT_DEVMEM is not set

#
# x86 Debugging
#
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_EARLY_PRINTK_USB=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_EARLY_PRINTK_USB_XDBC=y
# CONFIG_EFI_PGT_DUMP is not set
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_FPU is not set
# CONFIG_PUNIT_ATOM_DEBUG is not set
CONFIG_UNWINDER_ORC=y
# CONFIG_UNWINDER_FRAME_POINTER is not set
# end of x86 Debugging

#
# Kernel Testing and Coverage
#
CONFIG_KUNIT=y
CONFIG_KUNIT_DEBUGFS=y
# CONFIG_KUNIT_TEST is not set
# CONFIG_KUNIT_EXAMPLE_TEST is not set
CONFIG_KUNIT_ALL_TESTS=m
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
CONFIG_FUNCTION_ERROR_INJECTION=y
# CONFIG_FAULT_INJECTION is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_LKDTM is not set
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_MIN_HEAP=m
CONFIG_TEST_SORT=m
CONFIG_TEST_DIV64=m
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
CONFIG_ATOMIC64_SELFTEST=m
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
CONFIG_STRING_SELFTEST=m
CONFIG_TEST_STRING_HELPERS=m
CONFIG_TEST_STRSCPY=m
CONFIG_TEST_KSTRTOX=m
CONFIG_TEST_PRINTF=m
CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
# CONFIG_TEST_LKM is not set
CONFIG_TEST_BITOPS=m
CONFIG_TEST_VMALLOC=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
CONFIG_BITFIELD_KUNIT=m
CONFIG_HASH_KUNIT_TEST=m
CONFIG_RESOURCE_KUNIT_TEST=m
CONFIG_SYSCTL_KUNIT_TEST=m
CONFIG_LIST_KUNIT_TEST=m
CONFIG_LINEAR_RANGES_TEST=m
CONFIG_CMDLINE_KUNIT_TEST=m
CONFIG_BITS_TEST=m
CONFIG_SLUB_KUNIT_TEST=m
CONFIG_RATIONAL_KUNIT_TEST=m
CONFIG_MEMCPY_KUNIT_TEST=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
# CONFIG_TEST_KMOD is not set
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_LIVEPATCH=m
# CONFIG_TEST_STACKINIT is not set
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_HMM=m
CONFIG_TEST_FREE_PAGES=m
CONFIG_TEST_FPU=m
# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage
# end of Kernel hacking

[-- Attachment #3: job-script.ksh --]
[-- Type: text/plain, Size: 4959 bytes --]

#!/bin/sh

export_top_env()
{
	export suite='boot'
	export testcase='boot'
	export category='functional'
	export timeout='10m'
	export job_origin='boot.yaml'
	export queue_cmdline_keys='branch
commit'
	export queue='validate'
	export testbox='vm-icl-5'
	export tbox_group='vm-icl'
	export branch='linux-review/Kumar-Kartikeya-Dwivedi/Introduce-typed-pointer-support-in-BPF-maps/20220317-200307'
	export commit='9a707eb02e50d3c736837128261bcba9c96a400d'
	export kconfig='x86_64-rhel-8.3-kunit'
	export repeat_to=6
	export nr_vm=160
	export submit_id='62346cdb28b9647e8aaf0c1d'
	export job_file='/lkp/jobs/scheduled/vm-icl-5/boot-1-debian-10.4-x86_64-20200603.cgz-9a707eb02e50d3c736837128261bcba9c96a400d-20220318-32394-16y5u19-5.yaml'
	export id='718453e2136f37ef5e4f59427cd3dfcba8c20bf0'
	export queuer_version='/lkp-src'
	export model='qemu-system-x86_64 -enable-kvm -cpu Icelake-Server'
	export nr_cpu=4
	export memory='16G'
	export need_kconfig=\{\"KVM_GUEST\"\=\>\"y\"\}
	export ssh_base_port=23600
	export kernel_cmdline='vmalloc=128M initramfs_async=0 page_owner=on'
	export rootfs='debian-10.4-x86_64-20200603.cgz'
	export compiler='gcc-9'
	export enqueue_time='2022-03-18 19:28:28 +0800'
	export _id='62346cf428b9647e8aaf0c1f'
	export _rt='/result/boot/1/vm-icl/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d'
	export user='lkp'
	export LKP_SERVER='internal-lkp-server'
	export result_root='/result/boot/1/vm-icl/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/3'
	export scheduler_version='/lkp/lkp/.src-20220318-154624'
	export arch='x86_64'
	export max_uptime=600
	export initrd='/osimage/debian/debian-10.4-x86_64-20200603.cgz'
	export bootloader_append='root=/dev/ram0
RESULT_ROOT=/result/boot/1/vm-icl/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/3
BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/vmlinuz-5.17.0-rc6-02001-g9a707eb02e50
branch=linux-review/Kumar-Kartikeya-Dwivedi/Introduce-typed-pointer-support-in-BPF-maps/20220317-200307
job=/lkp/jobs/scheduled/vm-icl-5/boot-1-debian-10.4-x86_64-20200603.cgz-9a707eb02e50d3c736837128261bcba9c96a400d-20220318-32394-16y5u19-5.yaml
user=lkp
ARCH=x86_64
kconfig=x86_64-rhel-8.3-kunit
commit=9a707eb02e50d3c736837128261bcba9c96a400d
vmalloc=128M initramfs_async=0 page_owner=on
max_uptime=600
LKP_SERVER=internal-lkp-server
selinux=0
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw'
	export modules_initrd='/pkg/linux/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/modules.cgz'
	export bm_initrd='/osimage/deps/debian-10.4-x86_64-20200603.cgz/run-ipconfig_20200608.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/lkp_20220105.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/rsync-rootfs_20200608.cgz'
	export lkp_initrd='/osimage/user/lkp/lkp-x86_64.cgz'
	export site='inn'
	export LKP_CGI_PORT=80
	export LKP_CIFS_PORT=139
	export schedule_notify_address=
	export kernel='/pkg/linux/x86_64-rhel-8.3-kunit/gcc-9/9a707eb02e50d3c736837128261bcba9c96a400d/vmlinuz-5.17.0-rc6-02001-g9a707eb02e50'
	export dequeue_time='2022-03-18 19:29:35 +0800'
	export job_initrd='/lkp/jobs/scheduled/vm-icl-5/boot-1-debian-10.4-x86_64-20200603.cgz-9a707eb02e50d3c736837128261bcba9c96a400d-20220318-32394-16y5u19-5.cgz'

	[ -n "$LKP_SRC" ] ||
	export LKP_SRC=/lkp/${user:-lkp}/src
}

run_job()
{
	echo $$ > $TMP/run-job.pid

	. $LKP_SRC/lib/http.sh
	. $LKP_SRC/lib/job.sh
	. $LKP_SRC/lib/env.sh

	export_top_env

	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-slabinfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper boot-meminfo
	run_monitor $LKP_SRC/monitors/one-shot/wrapper memmap
	run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time
	run_monitor $LKP_SRC/monitors/wrapper kmsg
	run_monitor $LKP_SRC/monitors/wrapper heartbeat
	run_monitor $LKP_SRC/monitors/wrapper meminfo
	run_monitor $LKP_SRC/monitors/wrapper oom-killer
	run_monitor $LKP_SRC/monitors/plain/watchdog

	run_test $LKP_SRC/tests/wrapper sleep 1
}

extract_stats()
{
	export stats_part_begin=
	export stats_part_end=

	$LKP_SRC/stats/wrapper boot-slabinfo
	$LKP_SRC/stats/wrapper boot-meminfo
	$LKP_SRC/stats/wrapper memmap
	$LKP_SRC/stats/wrapper boot-memory
	$LKP_SRC/stats/wrapper boot-time
	$LKP_SRC/stats/wrapper kernel-size
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper sleep
	$LKP_SRC/stats/wrapper meminfo

	$LKP_SRC/stats/wrapper time sleep.time
	$LKP_SRC/stats/wrapper dmesg
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper last_state
	$LKP_SRC/stats/wrapper stderr
	$LKP_SRC/stats/wrapper time
}

"$@"

[-- Attachment #4: dmesg.xz --]
[-- Type: application/x-xz, Size: 10428 bytes --]

[PATCH bpf-next v2 10/15] bpf: Populate pairs of btf_id and destructor kfunc in btf

[Kumar Kartikeya Dwivedi]

To support storing referenced PTR_TO_BTF_ID in maps, we require
associating a specific BTF ID with a 'destructor' kfunc. This is because
we need to release a live referenced pointer at a certain offset in map
value from the map destruction path, otherwise we end up leaking
resources.

Hence, introduce support for passing an array of btf_id, kfunc_btf_id
pairs that denote a BTF ID and its associated release function. Then,
add an accessor 'btf_find_dtor_kfunc' which can be used to look up the
destructor kfunc of a certain BTF ID. If found, we can use it to free
the object from the map free path.

The registration of these pairs also serve as a whitelist of structures
which are allowed as referenced PTR_TO_BTF_ID in a BPF map, because
without finding the destructor kfunc, we will bail and return an error.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/btf.h |  17 +++++++
 kernel/bpf/btf.c    | 108 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 125 insertions(+)

diff --git a/include/linux/btf.h b/include/linux/btf.h
index 5b578dc81c04..ff4be49b7a26 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -40,6 +40,11 @@ struct btf_kfunc_id_set {
 	};
 };
 
+struct btf_id_dtor_kfunc {
+	u32 btf_id;
+	u32 kfunc_btf_id;
+};
+
 extern const struct file_operations btf_fops;
 
 void btf_get(struct btf *btf);
@@ -346,6 +351,9 @@ bool btf_kfunc_id_set_contains(const struct btf *btf,
 			       enum btf_kfunc_type type, u32 kfunc_btf_id);
 int register_btf_kfunc_id_set(enum bpf_prog_type prog_type,
 			      const struct btf_kfunc_id_set *s);
+s32 btf_find_dtor_kfunc(struct btf *btf, u32 btf_id);
+int register_btf_id_dtor_kfuncs(const struct btf_id_dtor_kfunc *dtors, u32 add_cnt,
+				struct module *owner);
 #else
 static inline const struct btf_type *btf_type_by_id(const struct btf *btf,
 						    u32 type_id)
@@ -369,6 +377,15 @@ static inline int register_btf_kfunc_id_set(enum bpf_prog_type prog_type,
 {
 	return 0;
 }
+static inline s32 btf_find_dtor_kfunc(struct btf *btf, u32 btf_id)
+{
+	return -ENOENT;
+}
+static inline int register_btf_id_dtor_kfuncs(const struct btf_id_dtor_kfunc *dtors,
+					      u32 add_cnt, struct module *owner)
+{
+	return 0;
+}
 #endif
 
 #endif
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 2e51b391b684..275db109a470 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -207,12 +207,18 @@ enum btf_kfunc_hook {
 
 enum {
 	BTF_KFUNC_SET_MAX_CNT = 32,
+	BTF_DTOR_KFUNC_MAX_CNT = 256,
 };
 
 struct btf_kfunc_set_tab {
 	struct btf_id_set *sets[BTF_KFUNC_HOOK_MAX][BTF_KFUNC_TYPE_MAX];
 };
 
+struct btf_id_dtor_kfunc_tab {
+	u32 cnt;
+	struct btf_id_dtor_kfunc dtors[];
+};
+
 struct btf {
 	void *data;
 	struct btf_type **types;
@@ -228,6 +234,7 @@ struct btf {
 	u32 id;
 	struct rcu_head rcu;
 	struct btf_kfunc_set_tab *kfunc_set_tab;
+	struct btf_id_dtor_kfunc_tab *dtor_kfunc_tab;
 
 	/* split BTF support */
 	struct btf *base_btf;
@@ -1614,8 +1621,19 @@ static void btf_free_kfunc_set_tab(struct btf *btf)
 	btf->kfunc_set_tab = NULL;
 }
 
+static void btf_free_dtor_kfunc_tab(struct btf *btf)
+{
+	struct btf_id_dtor_kfunc_tab *tab = btf->dtor_kfunc_tab;
+
+	if (!tab)
+		return;
+	kfree(tab);
+	btf->dtor_kfunc_tab = NULL;
+}
+
 static void btf_free(struct btf *btf)
 {
+	btf_free_dtor_kfunc_tab(btf);
 	btf_free_kfunc_set_tab(btf);
 	kvfree(btf->types);
 	kvfree(btf->resolved_sizes);
@@ -7026,6 +7044,96 @@ int register_btf_kfunc_id_set(enum bpf_prog_type prog_type,
 }
 EXPORT_SYMBOL_GPL(register_btf_kfunc_id_set);
 
+s32 btf_find_dtor_kfunc(struct btf *btf, u32 btf_id)
+{
+	struct btf_id_dtor_kfunc_tab *tab = btf->dtor_kfunc_tab;
+	struct btf_id_dtor_kfunc *dtor;
+
+	if (!tab)
+		return -ENOENT;
+	/* Even though the size of tab->dtors[0] is > sizeof(u32), we only need
+	 * to compare the first u32 with btf_id, so we can reuse btf_id_cmp_func.
+	 */
+	BUILD_BUG_ON(offsetof(struct btf_id_dtor_kfunc, btf_id) != 0);
+	dtor = bsearch(&btf_id, tab->dtors, tab->cnt, sizeof(tab->dtors[0]), btf_id_cmp_func);
+	if (!dtor)
+		return -ENOENT;
+	return dtor->kfunc_btf_id;
+}
+
+/* This function must be invoked only from initcalls/module init functions */
+int register_btf_id_dtor_kfuncs(const struct btf_id_dtor_kfunc *dtors, u32 add_cnt,
+				struct module *owner)
+{
+	struct btf_id_dtor_kfunc_tab *tab;
+	struct btf *btf;
+	u32 tab_cnt;
+	int ret;
+
+	btf = btf_get_module_btf(owner);
+	if (!btf) {
+		if (!owner && IS_ENABLED(CONFIG_DEBUG_INFO_BTF)) {
+			pr_err("missing vmlinux BTF, cannot register dtor kfuncs\n");
+			return -ENOENT;
+		}
+		if (owner && IS_ENABLED(CONFIG_DEBUG_INFO_BTF_MODULES)) {
+			pr_err("missing module BTF, cannot register dtor kfuncs\n");
+			return -ENOENT;
+		}
+		return 0;
+	}
+	if (IS_ERR(btf))
+		return PTR_ERR(btf);
+
+	if (add_cnt >= BTF_DTOR_KFUNC_MAX_CNT) {
+		pr_err("cannot register more than %d kfunc destructors\n", BTF_DTOR_KFUNC_MAX_CNT);
+		ret = -E2BIG;
+		goto end;
+	}
+
+	tab = btf->dtor_kfunc_tab;
+	/* Only one call allowed for modules */
+	if (WARN_ON_ONCE(tab && btf_is_module(btf))) {
+		ret = -EINVAL;
+		goto end;
+	}
+
+	tab_cnt = tab ? tab->cnt : 0;
+	if (tab_cnt > U32_MAX - add_cnt) {
+		ret = -EOVERFLOW;
+		goto end;
+	}
+	if (tab_cnt + add_cnt >= BTF_DTOR_KFUNC_MAX_CNT) {
+		pr_err("cannot register more than %d kfunc destructors\n", BTF_DTOR_KFUNC_MAX_CNT);
+		ret = -E2BIG;
+		goto end;
+	}
+
+	tab = krealloc(btf->dtor_kfunc_tab,
+		       offsetof(struct btf_id_dtor_kfunc_tab, dtors[tab_cnt + add_cnt]),
+		       GFP_KERNEL | __GFP_NOWARN);
+	if (!tab) {
+		ret = -ENOMEM;
+		goto end;
+	}
+
+	if (!btf->dtor_kfunc_tab)
+		tab->cnt = 0;
+	btf->dtor_kfunc_tab = tab;
+
+	memcpy(tab->dtors + tab->cnt, dtors, add_cnt * sizeof(tab->dtors[0]));
+	tab->cnt += add_cnt;
+
+	sort(tab->dtors, tab->cnt, sizeof(tab->dtors[0]), btf_id_cmp_func, NULL);
+
+	return 0;
+end:
+	btf_free_dtor_kfunc_tab(btf);
+	btf_put(btf);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(register_btf_id_dtor_kfuncs);
+
 #define MAX_TYPES_ARE_COMPAT_DEPTH 2
 
 static
-- 
2.35.1

[PATCH bpf-next v2 11/15] bpf: Wire up freeing of referenced kptr

[Kumar Kartikeya Dwivedi]

A destructor kfunc can be defined as void func(type *), where type may
be void or any other pointer type as per convenience.

In this patch, we ensure that the type is sane and capture the function
pointer into off_desc of ptr_off_tab for the specific pointer offset,
with the invariant that the dtor pointer is always set when 'kptr_ref'
tag is applied to the pointer's pointee type, which is indicated by the
flag BPF_MAP_VALUE_OFF_F_REF.

Note that only BTF IDs whose destructor kfunc is registered, thus become
the allowed BTF IDs for embedding as referenced kptr. Hence it serves
the purpose of finding dtor kfunc BTF ID, as well acting as a check
against the whitelist of allowed BTF IDs for this purpose.

Finally, wire up the actual freeing of the referenced pointer if any at
all available offsets, so that no references are leaked after the BPF
map goes away and the BPF program previously moved the ownership a
referenced pointer into it.

The behavior is similar to BPF timers, where bpf_map_{update,delete}_elem
will free any existing referenced kptr. The same case is with LRU map's
bpf_lru_push_free/htab_lru_push_free functions, which are extended to
reset unreferenced and free referenced kptr.

Note that unlike BPF timers, kptr is not reset or freed when map uref
drops to zero.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/bpf.h   |  4 ++
 include/linux/btf.h   |  2 +
 kernel/bpf/arraymap.c | 14 ++++++-
 kernel/bpf/btf.c      | 86 ++++++++++++++++++++++++++++++++++++++++++-
 kernel/bpf/hashtab.c  | 28 +++++++++-----
 kernel/bpf/syscall.c  | 57 +++++++++++++++++++++++++---
 6 files changed, 172 insertions(+), 19 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index f0f1e0d3bb2e..1abb8d3aa6c5 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -23,6 +23,7 @@
 #include <linux/slab.h>
 #include <linux/percpu-refcount.h>
 #include <linux/bpfptr.h>
+#include <linux/btf.h>
 
 struct bpf_verifier_env;
 struct bpf_verifier_log;
@@ -174,6 +175,8 @@ struct bpf_map_value_off_desc {
 	u32 offset;
 	u32 btf_id;
 	struct btf *btf;
+	struct module *module;
+	btf_dtor_kfunc_t dtor;
 	int flags;
 };
 
@@ -1547,6 +1550,7 @@ struct bpf_map_value_off_desc *bpf_map_kptr_off_contains(struct bpf_map *map, u3
 void bpf_map_free_kptr_off_tab(struct bpf_map *map);
 struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map);
 bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_map *map_b);
+void bpf_map_free_kptr(struct bpf_map *map, void *map_value);
 
 struct bpf_map *bpf_map_get(u32 ufd);
 struct bpf_map *bpf_map_get_with_uref(u32 ufd);
diff --git a/include/linux/btf.h b/include/linux/btf.h
index ff4be49b7a26..8acf728c8616 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -45,6 +45,8 @@ struct btf_id_dtor_kfunc {
 	u32 kfunc_btf_id;
 };
 
+typedef void (*btf_dtor_kfunc_t)(void *);
+
 extern const struct file_operations btf_fops;
 
 void btf_get(struct btf *btf);
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 7f145aefbff8..3cc2884321e7 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -287,10 +287,12 @@ static int array_map_get_next_key(struct bpf_map *map, void *key, void *next_key
 	return 0;
 }
 
-static void check_and_free_timer_in_array(struct bpf_array *arr, void *val)
+static void check_and_free_timer_and_kptr(struct bpf_array *arr, void *val)
 {
 	if (unlikely(map_value_has_timer(&arr->map)))
 		bpf_timer_cancel_and_free(val + arr->map.timer_off);
+	if (unlikely(map_value_has_kptr(&arr->map)))
+		bpf_map_free_kptr(&arr->map, val);
 }
 
 /* Called from syscall or from eBPF program */
@@ -327,7 +329,7 @@ static int array_map_update_elem(struct bpf_map *map, void *key, void *value,
 			copy_map_value_locked(map, val, value, false);
 		else
 			copy_map_value(map, val, value);
-		check_and_free_timer_in_array(array, val);
+		check_and_free_timer_and_kptr(array, val);
 	}
 	return 0;
 }
@@ -386,6 +388,7 @@ static void array_map_free_timers(struct bpf_map *map)
 	struct bpf_array *array = container_of(map, struct bpf_array, map);
 	int i;
 
+	/* We don't reset or free kptr on uref dropping to zero. */
 	if (likely(!map_value_has_timer(map)))
 		return;
 
@@ -398,6 +401,13 @@ static void array_map_free_timers(struct bpf_map *map)
 static void array_map_free(struct bpf_map *map)
 {
 	struct bpf_array *array = container_of(map, struct bpf_array, map);
+	int i;
+
+	if (unlikely(map_value_has_kptr(map))) {
+		for (i = 0; i < array->map.max_entries; i++)
+			bpf_map_free_kptr(map, array->value + array->elem_size * i);
+		bpf_map_free_kptr_off_tab(map);
+	}
 
 	if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY)
 		bpf_array_free_percpu(array);
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 275db109a470..b561d807c9a1 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3415,6 +3415,7 @@ struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
 {
 	struct btf_field_info info_arr[BPF_MAP_VALUE_OFF_MAX];
 	struct bpf_map_value_off *tab;
+	struct module *mod = NULL;
 	int ret, i, nr_off;
 
 	/* Revisit stack usage when bumping BPF_MAP_VALUE_OFF_MAX */
@@ -3446,16 +3447,99 @@ struct bpf_map_value_off *btf_find_kptr(const struct btf *btf,
 			goto end;
 		}
 
+		/* Find and stash the function pointer for the destruction function that
+		 * needs to be eventually invoked from the map free path.
+		 */
+		if (info_arr[i].flags & BPF_MAP_VALUE_OFF_F_REF) {
+			const struct btf_type *dtor_func, *dtor_func_proto;
+			const struct btf_param *args;
+			const char *dtor_func_name;
+			unsigned long addr;
+			s32 dtor_btf_id;
+			u32 nr_args;
+
+			/* This call also serves as a whitelist of allowed objects that
+			 * can be used as a referenced pointer and be stored in a map at
+			 * the same time.
+			 */
+			dtor_btf_id = btf_find_dtor_kfunc(off_btf, id);
+			if (dtor_btf_id < 0) {
+				ret = dtor_btf_id;
+				btf_put(off_btf);
+				goto end;
+			}
+
+			dtor_func = btf_type_by_id(off_btf, dtor_btf_id);
+			if (!dtor_func || !btf_type_is_func(dtor_func)) {
+				ret = -EINVAL;
+				btf_put(off_btf);
+				goto end;
+			}
+
+			dtor_func_proto = btf_type_by_id(off_btf, dtor_func->type);
+			if (!dtor_func_proto || !btf_type_is_func_proto(dtor_func_proto)) {
+				ret = -EINVAL;
+				btf_put(off_btf);
+				goto end;
+			}
+
+			/* Make sure the prototype of the destructor kfunc is 'void func(type *)' */
+			t = btf_type_by_id(off_btf, dtor_func_proto->type);
+			if (!t || !btf_type_is_void(t)) {
+				ret = -EINVAL;
+				btf_put(off_btf);
+				goto end;
+			}
+
+			nr_args = btf_type_vlen(dtor_func_proto);
+			args = btf_params(dtor_func_proto);
+
+			t = NULL;
+			if (nr_args)
+				t = btf_type_by_id(off_btf, args[0].type);
+			/* Allow any pointer type, as width on targets Linux supports
+			 * will be same for all pointer types (i.e. sizeof(void *))
+			 */
+			if (nr_args != 1 || !t || !btf_type_is_ptr(t)) {
+				ret = -EINVAL;
+				btf_put(off_btf);
+				goto end;
+			}
+
+			if (btf_is_module(btf)) {
+				mod = btf_try_get_module(off_btf);
+				if (!mod) {
+					ret = -ENXIO;
+					btf_put(off_btf);
+					goto end;
+				}
+			}
+
+			dtor_func_name = __btf_name_by_offset(off_btf, dtor_func->name_off);
+			addr = kallsyms_lookup_name(dtor_func_name);
+			if (!addr) {
+				ret = -EINVAL;
+				module_put(mod);
+				btf_put(off_btf);
+				goto end;
+			}
+			tab->off[i].dtor = (void *)addr;
+		}
+
 		tab->off[i].offset = info_arr[i].off;
 		tab->off[i].btf_id = id;
 		tab->off[i].btf = off_btf;
+		tab->off[i].module = mod;
 		tab->off[i].flags = info_arr[i].flags;
 		tab->nr_off = i + 1;
 	}
 	return tab;
 end:
-	while (tab->nr_off--)
+	while (tab->nr_off--) {
 		btf_put(tab->off[tab->nr_off].btf);
+		if (tab->off[tab->nr_off].module)
+			module_put(tab->off[tab->nr_off].module);
+	}
 	kfree(tab);
 	return ERR_PTR(ret);
 }
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index 65877967f414..3d0698e19958 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -725,12 +725,16 @@ static int htab_lru_map_gen_lookup(struct bpf_map *map,
 	return insn - insn_buf;
 }
 
-static void check_and_free_timer(struct bpf_htab *htab, struct htab_elem *elem)
+static void check_and_free_timer_and_kptr(struct bpf_htab *htab,
+					  struct htab_elem *elem,
+					  bool free_kptr)
 {
+	void *map_value = elem->key + round_up(htab->map.key_size, 8);
+
 	if (unlikely(map_value_has_timer(&htab->map)))
-		bpf_timer_cancel_and_free(elem->key +
-					  round_up(htab->map.key_size, 8) +
-					  htab->map.timer_off);
+		bpf_timer_cancel_and_free(map_value + htab->map.timer_off);
+	if (unlikely(map_value_has_kptr(&htab->map)) && free_kptr)
+		bpf_map_free_kptr(&htab->map, map_value);
 }
 
 /* It is called from the bpf_lru_list when the LRU needs to delete
@@ -757,7 +761,7 @@ static bool htab_lru_map_delete_node(void *arg, struct bpf_lru_node *node)
 	hlist_nulls_for_each_entry_rcu(l, n, head, hash_node)
 		if (l == tgt_l) {
 			hlist_nulls_del_rcu(&l->hash_node);
-			check_and_free_timer(htab, l);
+			check_and_free_timer_and_kptr(htab, l, true);
 			break;
 		}
 
@@ -829,7 +833,7 @@ static void htab_elem_free(struct bpf_htab *htab, struct htab_elem *l)
 {
 	if (htab->map.map_type == BPF_MAP_TYPE_PERCPU_HASH)
 		free_percpu(htab_elem_get_ptr(l, htab->map.key_size));
-	check_and_free_timer(htab, l);
+	check_and_free_timer_and_kptr(htab, l, true);
 	kfree(l);
 }
 
@@ -857,7 +861,7 @@ static void free_htab_elem(struct bpf_htab *htab, struct htab_elem *l)
 	htab_put_fd_value(htab, l);
 
 	if (htab_is_prealloc(htab)) {
-		check_and_free_timer(htab, l);
+		check_and_free_timer_and_kptr(htab, l, true);
 		__pcpu_freelist_push(&htab->freelist, &l->fnode);
 	} else {
 		atomic_dec(&htab->count);
@@ -1104,7 +1108,7 @@ static int htab_map_update_elem(struct bpf_map *map, void *key, void *value,
 		if (!htab_is_prealloc(htab))
 			free_htab_elem(htab, l_old);
 		else
-			check_and_free_timer(htab, l_old);
+			check_and_free_timer_and_kptr(htab, l_old, true);
 	}
 	ret = 0;
 err:
@@ -1114,7 +1118,7 @@ static int htab_map_update_elem(struct bpf_map *map, void *key, void *value,
 
 static void htab_lru_push_free(struct bpf_htab *htab, struct htab_elem *elem)
 {
-	check_and_free_timer(htab, elem);
+	check_and_free_timer_and_kptr(htab, elem, true);
 	bpf_lru_push_free(&htab->lru, &elem->lru_node);
 }
 
@@ -1420,7 +1424,10 @@ static void htab_free_malloced_timers(struct bpf_htab *htab)
 		struct htab_elem *l;
 
 		hlist_nulls_for_each_entry(l, n, head, hash_node)
-			check_and_free_timer(htab, l);
+			/* We don't reset or free kptr on uref dropping to zero,
+			 * hence set free_kptr to false.
+			 */
+			check_and_free_timer_and_kptr(htab, l, false);
 		cond_resched_rcu();
 	}
 	rcu_read_unlock();
@@ -1458,6 +1465,7 @@ static void htab_map_free(struct bpf_map *map)
 	else
 		prealloc_destroy(htab);
 
+	bpf_map_free_kptr_off_tab(map);
 	free_percpu(htab->extra_elems);
 	bpf_map_area_free(htab->buckets);
 	for (i = 0; i < HASHTAB_MAP_LOCK_COUNT; i++)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 69e8ea1be432..e636f43cc3b9 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -507,8 +507,11 @@ void bpf_map_free_kptr_off_tab(struct bpf_map *map)
 	if (!map_value_has_kptr(map))
 		return;
 	for (i = 0; i < tab->nr_off; i++) {
+		struct module *mod = tab->off[i].module;
 		struct btf *btf = tab->off[i].btf;
 
+		if (mod)
+			module_put(mod);
 		btf_put(btf);
 	}
 	kfree(tab);
@@ -523,8 +526,16 @@ struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map)
 	if (!map_value_has_kptr(map))
 		return ERR_PTR(-ENOENT);
 	/* Do a deep copy of the kptr_off_tab */
-	for (i = 0; i < tab->nr_off; i++)
-		btf_get(tab->off[i].btf);
+	for (i = 0; i < tab->nr_off; i++) {
+		struct module *mod = tab->off[i].module;
+		struct btf *btf = tab->off[i].btf;
+
+		if (mod && !try_module_get(mod)) {
+			ret = -ENXIO;
+			goto end;
+		}
+		btf_get(btf);
+	}
 
 	size = offsetof(struct bpf_map_value_off, off[tab->nr_off]);
 	new_tab = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
@@ -535,8 +546,14 @@ struct bpf_map_value_off *bpf_map_copy_kptr_off_tab(const struct bpf_map *map)
 	memcpy(new_tab, tab, size);
 	return new_tab;
 end:
-	while (i--)
-		btf_put(tab->off[i].btf);
+	while (i--) {
+		struct module *mod = tab->off[i].module;
+		struct btf *btf = tab->off[i].btf;
+
+		if (mod)
+			module_put(mod);
+		btf_put(btf);
+	}
 	return ERR_PTR(ret);
 }
 
@@ -556,15 +573,43 @@ bool bpf_map_equal_kptr_off_tab(const struct bpf_map *map_a, const struct bpf_ma
 	return !memcmp(tab_a, tab_b, size);
 }
 
+/* Caller must ensure map_value_has_kptr is true. Note that this function can be
+ * called on a map value while the map_value is visible to BPF programs, as it
+ * ensures the correct synchronization, and we already enforce the same using
+ * the verifier on the BPF program side, esp. for referenced pointers.
+ */
+void bpf_map_free_kptr(struct bpf_map *map, void *map_value)
+{
+	struct bpf_map_value_off *tab = map->kptr_off_tab;
+	unsigned long *btf_id_ptr;
+	int i;
+
+	for (i = 0; i < tab->nr_off; i++) {
+		struct bpf_map_value_off_desc *off_desc = &tab->off[i];
+		unsigned long old_ptr;
+
+		btf_id_ptr = map_value + off_desc->offset;
+		if (!(off_desc->flags & BPF_MAP_VALUE_OFF_F_REF)) {
+			u64 *p = (u64 *)btf_id_ptr;
+
+			WRITE_ONCE(p, 0);
+			continue;
+		}
+		old_ptr = xchg(btf_id_ptr, 0);
+		off_desc->dtor((void *)old_ptr);
+	}
+}
+
 /* called from workqueue */
 static void bpf_map_free_deferred(struct work_struct *work)
 {
 	struct bpf_map *map = container_of(work, struct bpf_map, work);
 
 	security_bpf_map_free(map);
-	bpf_map_free_kptr_off_tab(map);
 	bpf_map_release_memcg(map);
-	/* implementation dependent freeing */
+	/* implementation dependent freeing, map_free callback also does
+	 * bpf_map_free_kptr_off_tab, if needed.
+	 */
 	map->ops->map_free(map);
 }
 
-- 
2.35.1

[PATCH bpf-next v2 12/15] bpf: Teach verifier about kptr_get kfunc helpers

[Kumar Kartikeya Dwivedi]

We introduce a new style of kfunc helpers, namely *_kptr_get, where they
take pointer to the map value which points to a referenced kernel
pointer contained in the map. Since this is referenced, only
bpf_kptr_xchg from BPF side and xchg from kernel side is allowed to
change the current value, and each pointer that resides in that location
would be referenced, and RCU protected (this must be kept in mind while
adding kernel types embeddable as reference kptr in BPF maps).

This means that if do the load of the pointer value in an RCU read
section, and find a live pointer, then as long as we hold RCU read lock,
it won't be freed by a parallel xchg + release operation. This allows us
to implement a safe refcount increment scheme. Hence, enforce that first
argument of all such kfunc is a proper PTR_TO_MAP_VALUE pointing at the
right offset to referenced pointer.

For the rest of the arguments, they are subjected to typical kfunc
argument checks, hence allowing some flexibility in passing more intent
into how the reference should be taken.

For instance, in case of struct nf_conn, it is not freed until RCU grace
period ends, but can still be reused for another tuple once refcount has
dropped to zero. Hence, a bpf_ct_kptr_get helper not only needs to call
refcount_inc_not_zero, but also do a tuple match after incrementing the
reference, and when it fails to match it, put the reference again and
return NULL.

This can be implemented easily if we allow passing additional parameters
to the bpf_ct_kptr_get kfunc, like a struct bpf_sock_tuple * and a
tuple__sz pair.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 include/linux/btf.h |  2 ++
 kernel/bpf/btf.c    | 57 +++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 54 insertions(+), 5 deletions(-)

diff --git a/include/linux/btf.h b/include/linux/btf.h
index 8acf728c8616..d5d37bfde8df 100644
--- a/include/linux/btf.h
+++ b/include/linux/btf.h
@@ -17,6 +17,7 @@ enum btf_kfunc_type {
 	BTF_KFUNC_TYPE_ACQUIRE,
 	BTF_KFUNC_TYPE_RELEASE,
 	BTF_KFUNC_TYPE_RET_NULL,
+	BTF_KFUNC_TYPE_KPTR_ACQUIRE,
 	BTF_KFUNC_TYPE_MAX,
 };
 
@@ -35,6 +36,7 @@ struct btf_kfunc_id_set {
 			struct btf_id_set *acquire_set;
 			struct btf_id_set *release_set;
 			struct btf_id_set *ret_null_set;
+			struct btf_id_set *kptr_acquire_set;
 		};
 		struct btf_id_set *sets[BTF_KFUNC_TYPE_MAX];
 	};
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index b561d807c9a1..34841e90a128 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -6068,11 +6068,11 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 	struct bpf_verifier_log *log = &env->log;
 	u32 i, nargs, ref_id, ref_obj_id = 0;
 	bool is_kfunc = btf_is_kernel(btf);
+	bool rel = false, kptr_get = false;
 	const char *func_name, *ref_tname;
 	const struct btf_type *t, *ref_t;
 	const struct btf_param *args;
 	int ref_regno = 0, ret;
-	bool rel = false;
 
 	t = btf_type_by_id(btf, func_id);
 	if (!t || !btf_type_is_func(t)) {
@@ -6098,10 +6098,14 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 		return -EINVAL;
 	}
 
-	/* Only kfunc can be release func */
-	if (is_kfunc)
+	if (is_kfunc) {
+		/* Only kfunc can be release func */
 		rel = btf_kfunc_id_set_contains(btf, resolve_prog_type(env->prog),
 						BTF_KFUNC_TYPE_RELEASE, func_id);
+		kptr_get = btf_kfunc_id_set_contains(btf, resolve_prog_type(env->prog),
+						     BTF_KFUNC_TYPE_KPTR_ACQUIRE, func_id);
+	}
+
 	/* check that BTF function arguments match actual types that the
 	 * verifier sees.
 	 */
@@ -6130,8 +6134,51 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
 		if (ret < 0)
 			return ret;
 
-		if (btf_get_prog_ctx_type(log, btf, t,
-					  env->prog->type, i)) {
+		/* kptr_get is only true for kfunc */
+		if (i == 0 && kptr_get) {
+			struct bpf_map_value_off_desc *off_desc;
+
+			if (reg->type != PTR_TO_MAP_VALUE) {
+				bpf_log(log, "arg#0 expected pointer to map value\n");
+				return -EINVAL;
+			}
+
+			/* check_func_arg_reg_off allows var_off for
+			 * PTR_TO_MAP_VALUE, but we need fixed offset to find
+			 * off_desc.
+			 */
+			if (!tnum_is_const(reg->var_off)) {
+				bpf_log(log, "arg#0 must have constant offset\n");
+				return -EINVAL;
+			}
+
+			off_desc = bpf_map_kptr_off_contains(reg->map_ptr, reg->off + reg->var_off.value);
+			if (!off_desc || !(off_desc->flags & BPF_MAP_VALUE_OFF_F_REF)) {
+				bpf_log(log, "arg#0 no referenced kptr at map value offset=%llu\n",
+					reg->off + reg->var_off.value);
+				return -EINVAL;
+			}
+
+			if (!btf_type_is_ptr(ref_t)) {
+				bpf_log(log, "arg#0 BTF type must be a double pointer\n");
+				return -EINVAL;
+			}
+
+			ref_t = btf_type_skip_modifiers(btf, ref_t->type, &ref_id);
+			ref_tname = btf_name_by_offset(btf, ref_t->name_off);
+
+			if (!btf_type_is_struct(ref_t)) {
+				bpf_log(log, "kernel function %s args#%d pointer type %s %s is not supported\n",
+					func_name, i, btf_type_str(ref_t), ref_tname);
+				return -EINVAL;
+			}
+			if (!btf_struct_ids_match(log, btf, ref_id, 0, off_desc->btf, off_desc->btf_id)) {
+				bpf_log(log, "kernel function %s args#%d expected pointer to %s %s\n",
+					func_name, i, btf_type_str(ref_t), ref_tname);
+				return -EINVAL;
+			}
+			/* rest of the arguments can be anything, like normal kfunc */
+		} else if (btf_get_prog_ctx_type(log, btf, t, env->prog->type, i)) {
 			/* If function expects ctx type in BTF check that caller
 			 * is passing PTR_TO_CTX.
 			 */
-- 
2.35.1

[PATCH bpf-next v2 13/15] libbpf: Add kptr type tag macros to bpf_helpers.h

[Kumar Kartikeya Dwivedi]

Include convenience definitions:
__kptr:		Unreferenced BTF ID pointer
__kptr_ref:	Referenced BTF ID pointer
__kptr_percpu:	per-CPU BTF ID pointer
__kptr_user:	Userspace BTF ID pointer

Users can use them to tag the pointer type meant to be used with the new
support directly in the map value definition. Note that these attributes
require https://reviews.llvm.org/D119799 to be emitted in BPF object
BTF correctly when applied to a non-builtin type.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 tools/lib/bpf/bpf_helpers.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/lib/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h
index 44df982d2a5c..f27690110eb5 100644
--- a/tools/lib/bpf/bpf_helpers.h
+++ b/tools/lib/bpf/bpf_helpers.h
@@ -149,6 +149,10 @@ enum libbpf_tristate {
 
 #define __kconfig __attribute__((section(".kconfig")))
 #define __ksym __attribute__((section(".ksyms")))
+#define __kptr __attribute__((btf_type_tag("kptr")))
+#define __kptr_ref __attribute__((btf_type_tag("kptr_ref")))
+#define __kptr_percpu __attribute__((btf_type_tag("kptr_percpu")))
+#define __kptr_user __attribute__((btf_type_tag("kptr_user")))
 
 #ifndef ___bpf_concat
 #define ___bpf_concat(a, b) a ## b
-- 
2.35.1

[PATCH bpf-next v2 14/15] selftests/bpf: Add C tests for kptr

[Kumar Kartikeya Dwivedi]

This uses the __kptr* macros as well, and tries to test the stuff that
is supposed to work, since we have negative tests in test_verifier
suite. Also include some code to test map-in-map support, such that the
inner_map_meta matches the map value of map added as element.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 .../selftests/bpf/prog_tests/map_kptr.c       |  20 ++
 tools/testing/selftests/bpf/progs/map_kptr.c  | 236 ++++++++++++++++++
 2 files changed, 256 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/map_kptr.c
 create mode 100644 tools/testing/selftests/bpf/progs/map_kptr.c

diff --git a/tools/testing/selftests/bpf/prog_tests/map_kptr.c b/tools/testing/selftests/bpf/prog_tests/map_kptr.c
new file mode 100644
index 000000000000..688732295ce9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_kptr.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+#include "map_kptr.skel.h"
+
+void test_map_kptr(void)
+{
+	struct map_kptr *skel;
+	char buf[24];
+	int key = 0;
+
+	skel = map_kptr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "map_kptr__open_and_load"))
+		return;
+	ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.hash_map), &key, buf, 0),
+		  "bpf_map_update_elem hash_map");
+	ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.hash_malloc_map), &key, buf, 0),
+		  "bpf_map_update_elem hash_malloc_map");
+	map_kptr__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/progs/map_kptr.c b/tools/testing/selftests/bpf/progs/map_kptr.c
new file mode 100644
index 000000000000..0b6f60423219
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/map_kptr.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+struct map_value {
+	struct prog_test_ref_kfunc __kptr *unref_ptr;
+	struct prog_test_ref_kfunc __kptr_ref *ref_ptr;
+	struct prog_test_ref_kfunc __kptr_percpu *percpu_ptr;
+	struct prog_test_ref_kfunc __kptr_user *user_ptr;
+};
+
+struct array_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} array_map SEC(".maps");
+
+struct hash_map {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} hash_map SEC(".maps");
+
+struct hash_malloc_map {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} hash_malloc_map SEC(".maps");
+
+struct lru_hash_map {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} lru_hash_map SEC(".maps");
+
+#define DEFINE_MAP_OF_MAP(map_type, inner_map_type, name)       \
+	struct {                                                \
+		__uint(type, map_type);                         \
+		__uint(max_entries, 1);                         \
+		__uint(key_size, sizeof(int));                  \
+		__uint(value_size, sizeof(int));                \
+		__array(values, struct inner_map_type);         \
+	} name SEC(".maps") = {                                 \
+		.values = { [0] = &inner_map_type },            \
+	}
+
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, array_map, array_of_array_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, hash_map, array_of_hash_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, hash_malloc_map, array_of_hash_malloc_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, lru_hash_map, array_of_lru_hash_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, array_map, hash_of_array_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, hash_map, hash_of_hash_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, hash_malloc_map, hash_of_hash_malloc_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, lru_hash_map, hash_of_lru_hash_maps);
+
+extern struct prog_test_ref_kfunc *bpf_kfunc_call_test_acquire(unsigned long *sp) __ksym;
+extern struct prog_test_ref_kfunc *
+bpf_kfunc_call_test_kptr_get(struct prog_test_ref_kfunc **p, int a, int b) __ksym;
+extern void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p) __ksym;
+
+static __always_inline
+void test_kptr_unref(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p;
+
+	p = v->unref_ptr;
+	/* store untrusted_ptr_or_null_ */
+	v->unref_ptr = p;
+	if (!p)
+		return;
+	if (p->a + p->b > 100)
+		return;
+	/* store untrusted_ptr_ */
+	v->unref_ptr = p;
+	/* store NULL */
+	v->unref_ptr = NULL;
+}
+
+static __always_inline
+void test_kptr_ref(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p;
+
+	p = v->ref_ptr;
+	/* store ptr_or_null_ */
+	v->unref_ptr = p;
+	if (!p)
+		return;
+	if (p->a + p->b > 100)
+		return;
+	/* store NULL */
+	p = bpf_kptr_xchg(&v->ref_ptr, NULL);
+	if (!p)
+		return;
+	if (p->a + p->b > 100) {
+		bpf_kfunc_call_test_release(p);
+		return;
+	}
+	/* store ptr_ */
+	v->unref_ptr = p;
+	bpf_kfunc_call_test_release(p);
+
+	p = bpf_kfunc_call_test_acquire(&(unsigned long){0});
+	if (!p)
+		return;
+	/* store ptr_ */
+	p = bpf_kptr_xchg(&v->ref_ptr, p);
+	if (!p)
+		return;
+	if (p->a + p->b > 100) {
+		bpf_kfunc_call_test_release(p);
+		return;
+	}
+	bpf_kfunc_call_test_release(p);
+}
+
+static __always_inline
+void test_kptr_percpu(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p;
+
+	p = v->percpu_ptr;
+	/* store percpu_ptr_or_null_ */
+	v->percpu_ptr = p;
+	if (!p)
+		return;
+	p = bpf_this_cpu_ptr(p);
+	if (p->a + p->b > 100)
+		return;
+	/* store percpu_ptr_ */
+	v->percpu_ptr = p;
+	/* store NULL */
+	v->percpu_ptr = NULL;
+}
+
+static __always_inline
+void test_kptr_user(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p;
+	char buf[sizeof(*p)];
+
+	p = v->user_ptr;
+	/* store user_ptr_or_null_ */
+	v->user_ptr = p;
+	if (!p)
+		return;
+	bpf_probe_read_user(buf, sizeof(buf), p);
+	/* store user_ptr_ */
+	v->user_ptr = p;
+	/* store NULL */
+	v->user_ptr = NULL;
+}
+
+static __always_inline
+void test_kptr_get(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p;
+
+	p = bpf_kfunc_call_test_kptr_get(&v->ref_ptr, 0, 0);
+	if (!p)
+		return;
+	if (p->a + p->b > 100) {
+		bpf_kfunc_call_test_release(p);
+		return;
+	}
+	bpf_kfunc_call_test_release(p);
+}
+
+static __always_inline
+void test_kptr(struct map_value *v)
+{
+	test_kptr_unref(v);
+	test_kptr_ref(v);
+	test_kptr_percpu(v);
+	test_kptr_user(v);
+	test_kptr_get(v);
+}
+
+SEC("tc")
+int test_map_kptr(struct __sk_buff *ctx)
+{
+	void *maps[] = {
+		&array_map,
+		&hash_map,
+		&hash_malloc_map,
+		&lru_hash_map,
+	};
+	struct map_value *v;
+	int i, key = 0;
+
+	for (i = 0; i < sizeof(maps) / sizeof(*maps); i++) {
+		v = bpf_map_lookup_elem(&array_map, &key);
+		if (!v)
+			return 0;
+		test_kptr(v);
+	}
+	return 0;
+}
+
+SEC("tc")
+int test_map_in_map_kptr(struct __sk_buff *ctx)
+{
+	void *map_of_maps[] = {
+		&array_of_array_maps,
+		&array_of_hash_maps,
+		&array_of_hash_malloc_maps,
+		&array_of_lru_hash_maps,
+		&hash_of_array_maps,
+		&hash_of_hash_maps,
+		&hash_of_hash_malloc_maps,
+		&hash_of_lru_hash_maps,
+	};
+	struct map_value *v;
+	int i, key = 0;
+	void *map;
+
+	for (i = 0; i < sizeof(map_of_maps) / sizeof(*map_of_maps); i++) {
+		map = bpf_map_lookup_elem(&array_of_array_maps, &key);
+		if (!map)
+			return 0;
+		v = bpf_map_lookup_elem(map, &key);
+		if (!v)
+			return 0;
+		test_kptr(v);
+	}
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
-- 
2.35.1

[PATCH bpf-next v2 15/15] selftests/bpf: Add verifier tests for kptr

[Kumar Kartikeya Dwivedi]

Reuse bpf_prog_test functions to test the support for PTR_TO_BTF_ID in
BPF map case, including some tests that verify implementation sanity and
corner cases.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 net/bpf/test_run.c                            |  39 +-
 tools/testing/selftests/bpf/test_verifier.c   |  60 +-
 .../testing/selftests/bpf/verifier/map_kptr.c | 763 ++++++++++++++++++
 3 files changed, 855 insertions(+), 7 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/verifier/map_kptr.c

diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c
index e7b9c2636d10..be1cd7498a4e 100644
--- a/net/bpf/test_run.c
+++ b/net/bpf/test_run.c
@@ -584,6 +584,12 @@ noinline void bpf_kfunc_call_memb_release(struct prog_test_member *p)
 {
 }
 
+noinline struct prog_test_ref_kfunc *
+bpf_kfunc_call_test_kptr_get(struct prog_test_ref_kfunc **p, int a, int b)
+{
+	return &prog_test_struct;
+}
+
 struct prog_test_pass1 {
 	int x0;
 	struct {
@@ -669,6 +675,7 @@ BTF_ID(func, bpf_kfunc_call_test3)
 BTF_ID(func, bpf_kfunc_call_test_acquire)
 BTF_ID(func, bpf_kfunc_call_test_release)
 BTF_ID(func, bpf_kfunc_call_memb_release)
+BTF_ID(func, bpf_kfunc_call_test_kptr_get)
 BTF_ID(func, bpf_kfunc_call_test_pass_ctx)
 BTF_ID(func, bpf_kfunc_call_test_pass1)
 BTF_ID(func, bpf_kfunc_call_test_pass2)
@@ -682,6 +689,7 @@ BTF_SET_END(test_sk_check_kfunc_ids)
 
 BTF_SET_START(test_sk_acquire_kfunc_ids)
 BTF_ID(func, bpf_kfunc_call_test_acquire)
+BTF_ID(func, bpf_kfunc_call_test_kptr_get)
 BTF_SET_END(test_sk_acquire_kfunc_ids)
 
 BTF_SET_START(test_sk_release_kfunc_ids)
@@ -691,8 +699,13 @@ BTF_SET_END(test_sk_release_kfunc_ids)
 
 BTF_SET_START(test_sk_ret_null_kfunc_ids)
 BTF_ID(func, bpf_kfunc_call_test_acquire)
+BTF_ID(func, bpf_kfunc_call_test_kptr_get)
 BTF_SET_END(test_sk_ret_null_kfunc_ids)
 
+BTF_SET_START(test_sk_kptr_acquire_kfunc_ids)
+BTF_ID(func, bpf_kfunc_call_test_kptr_get)
+BTF_SET_END(test_sk_kptr_acquire_kfunc_ids)
+
 static void *bpf_test_init(const union bpf_attr *kattr, u32 user_size,
 			   u32 size, u32 headroom, u32 tailroom)
 {
@@ -1579,14 +1592,30 @@ int bpf_prog_test_run_syscall(struct bpf_prog *prog,
 
 static const struct btf_kfunc_id_set bpf_prog_test_kfunc_set = {
 	.owner        = THIS_MODULE,
-	.check_set    = &test_sk_check_kfunc_ids,
-	.acquire_set  = &test_sk_acquire_kfunc_ids,
-	.release_set  = &test_sk_release_kfunc_ids,
-	.ret_null_set = &test_sk_ret_null_kfunc_ids,
+	.check_set        = &test_sk_check_kfunc_ids,
+	.acquire_set      = &test_sk_acquire_kfunc_ids,
+	.release_set      = &test_sk_release_kfunc_ids,
+	.ret_null_set     = &test_sk_ret_null_kfunc_ids,
+	.kptr_acquire_set = &test_sk_kptr_acquire_kfunc_ids
 };
 
+BTF_ID_LIST(bpf_prog_test_dtor_kfunc_ids)
+BTF_ID(struct, prog_test_ref_kfunc)
+BTF_ID(func, bpf_kfunc_call_test_release)
+
 static int __init bpf_prog_test_run_init(void)
 {
-	return register_btf_kfunc_id_set(BPF_PROG_TYPE_SCHED_CLS, &bpf_prog_test_kfunc_set);
+	const struct btf_id_dtor_kfunc bpf_prog_test_dtor_kfunc[] = {
+		{
+		  .btf_id       = bpf_prog_test_dtor_kfunc_ids[0],
+		  .kfunc_btf_id = bpf_prog_test_dtor_kfunc_ids[1]
+		},
+	};
+	int ret;
+
+	ret = register_btf_kfunc_id_set(BPF_PROG_TYPE_SCHED_CLS, &bpf_prog_test_kfunc_set);
+	return ret ?: register_btf_id_dtor_kfuncs(bpf_prog_test_dtor_kfunc,
+						  ARRAY_SIZE(bpf_prog_test_dtor_kfunc),
+						  THIS_MODULE);
 }
 late_initcall(bpf_prog_test_run_init);
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index a2cd236c32eb..71c986d65e39 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -53,7 +53,7 @@
 #define MAX_INSNS	BPF_MAXINSNS
 #define MAX_TEST_INSNS	1000000
 #define MAX_FIXUPS	8
-#define MAX_NR_MAPS	22
+#define MAX_NR_MAPS	23
 #define MAX_TEST_RUNS	8
 #define POINTER_VALUE	0xcafe4all
 #define TEST_DATA_LEN	64
@@ -101,6 +101,7 @@ struct bpf_test {
 	int fixup_map_reuseport_array[MAX_FIXUPS];
 	int fixup_map_ringbuf[MAX_FIXUPS];
 	int fixup_map_timer[MAX_FIXUPS];
+	int fixup_map_kptr[MAX_FIXUPS];
 	struct kfunc_btf_id_pair fixup_kfunc_btf_id[MAX_FIXUPS];
 	/* Expected verifier log output for result REJECT or VERBOSE_ACCEPT.
 	 * Can be a tab-separated sequence of expected strings. An empty string
@@ -621,8 +622,16 @@ static int create_cgroup_storage(bool percpu)
  * struct timer {
  *   struct bpf_timer t;
  * };
+ * struct btf_ptr {
+ *   struct prog_test_ref_kfunc __kptr *ptr;
+ *   struct prog_test_ref_kfunc __kptr_ref *ptr;
+ *   struct prog_test_ref_kfunc __kptr_percpu *ptr;
+ *   struct prog_test_ref_kfunc __kptr_user *ptr;
+ * }
  */
-static const char btf_str_sec[] = "\0bpf_spin_lock\0val\0cnt\0l\0bpf_timer\0timer\0t";
+static const char btf_str_sec[] = "\0bpf_spin_lock\0val\0cnt\0l\0bpf_timer\0timer\0t"
+				  "\0btf_ptr\0prog_test_ref_kfunc\0ptr\0kptr\0kptr_ref"
+				  "\0kptr_percpu\0kptr_user";
 static __u32 btf_raw_types[] = {
 	/* int */
 	BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),  /* [1] */
@@ -638,6 +647,26 @@ static __u32 btf_raw_types[] = {
 	/* struct timer */                              /* [5] */
 	BTF_TYPE_ENC(35, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16),
 	BTF_MEMBER_ENC(41, 4, 0), /* struct bpf_timer t; */
+	/* struct prog_test_ref_kfunc */		/* [6] */
+	BTF_STRUCT_ENC(51, 0, 0),
+	/* type tag "kptr" */
+	BTF_TYPE_TAG_ENC(75, 6),			/* [7] */
+	/* type tag "kptr_ref" */
+	BTF_TYPE_TAG_ENC(80, 6),			/* [8] */
+	/* type tag "kptr_percpu" */
+	BTF_TYPE_TAG_ENC(89, 6),			/* [9] */
+	/* type tag "kptr_user" */
+	BTF_TYPE_TAG_ENC(101, 6),			/* [10] */
+	BTF_PTR_ENC(7),					/* [11] */
+	BTF_PTR_ENC(8),					/* [12] */
+	BTF_PTR_ENC(9),					/* [13] */
+	BTF_PTR_ENC(10),				/* [14] */
+	/* struct btf_ptr */				/* [15] */
+	BTF_STRUCT_ENC(43, 4, 32),
+	BTF_MEMBER_ENC(71, 11, 0), /* struct prog_test_ref_kfunc __kptr *ptr; */
+	BTF_MEMBER_ENC(71, 12, 64), /* struct prog_test_ref_kfunc __kptr_ref *ptr; */
+	BTF_MEMBER_ENC(71, 13, 128), /* struct prog_test_ref_kfunc __kptr_percpu *ptr; */
+	BTF_MEMBER_ENC(71, 14, 192), /* struct prog_test_ref_kfunc __kptr_user *ptr; */
 };
 
 static int load_btf(void)
@@ -727,6 +756,25 @@ static int create_map_timer(void)
 	return fd;
 }
 
+static int create_map_kptr(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts,
+		.btf_key_type_id = 1,
+		.btf_value_type_id = 15,
+	);
+	int fd, btf_fd;
+
+	btf_fd = load_btf();
+	if (btf_fd < 0)
+		return -1;
+
+	opts.btf_fd = btf_fd;
+	fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_map", 4, 32, 1, &opts);
+	if (fd < 0)
+		printf("Failed to create map with btf_id pointer\n");
+	return fd;
+}
+
 static char bpf_vlog[UINT_MAX >> 8];
 
 static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
@@ -754,6 +802,7 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
 	int *fixup_map_reuseport_array = test->fixup_map_reuseport_array;
 	int *fixup_map_ringbuf = test->fixup_map_ringbuf;
 	int *fixup_map_timer = test->fixup_map_timer;
+	int *fixup_map_kptr = test->fixup_map_kptr;
 	struct kfunc_btf_id_pair *fixup_kfunc_btf_id = test->fixup_kfunc_btf_id;
 
 	if (test->fill_helper) {
@@ -947,6 +996,13 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
 			fixup_map_timer++;
 		} while (*fixup_map_timer);
 	}
+	if (*fixup_map_kptr) {
+		map_fds[22] = create_map_kptr();
+		do {
+			prog[*fixup_map_kptr].imm = map_fds[22];
+			fixup_map_kptr++;
+		} while (*fixup_map_kptr);
+	}
 
 	/* Patch in kfunc BTF IDs */
 	if (fixup_kfunc_btf_id->kfunc) {
diff --git a/tools/testing/selftests/bpf/verifier/map_kptr.c b/tools/testing/selftests/bpf/verifier/map_kptr.c
new file mode 100644
index 000000000000..b97b56e4a08b
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/map_kptr.c
@@ -0,0 +1,763 @@
+/* Common tests */
+{
+	"map_kptr: BPF_ST imm != 0",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "BPF_ST imm must be 0 when storing to kptr at off=0",
+},
+{
+	"map_kptr: size != bpf_size_to_bytes(BPF_DW)",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_W, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "kptr access size must be BPF_DW",
+},
+{
+	"map_kptr: map_value non-const var_off",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 0),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "kptr access cannot have variable offset",
+},
+{
+	"map_kptr: bpf_kptr_xchg non-const var_off",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 0),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_3),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 doesn't have constant offset. kptr has to be at the constant offset",
+},
+{
+	"map_kptr: unaligned boundary load/store",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 7),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "kptr access misaligned expected=0 off=7",
+},
+{
+	"map_kptr: reject var_off != 0",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "variable untrusted_ptr_ access var_off=(0x0; 0x7) disallowed",
+},
+/* Tests for unreferened PTR_TO_BTF_ID */
+{
+	"map_kptr: unref: reject btf_struct_ids_match == false",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R1 type=untrusted_ptr_prog_test_ref_kfunc expected=ptr_or_null_prog_test",
+},
+{
+	"map_kptr: unref: loaded pointer marked as untrusted",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R0 invalid mem access 'untrusted_ptr_or_null_'",
+},
+{
+	"map_kptr: unref: correct in kernel type size",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 24),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "access beyond struct prog_test_ref_kfunc at off 24 size 8",
+},
+{
+	"map_kptr: unref: inherit PTR_UNTRUSTED on struct walk",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_this_cpu_ptr),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 type=untrusted_ptr_ expected=percpu_ptr_",
+},
+{
+	"map_kptr: unref: no reference state created",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = ACCEPT,
+},
+{
+	"map_kptr: unref: bpf_kptr_xchg rejected",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "off=0 kptr isn't referenced kptr",
+},
+{
+	"map_kptr: unref: bpf_kfunc_call_test_kptr_get rejected",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "arg#0 no referenced kptr at map value offset=0",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_kptr_get", 13 },
+	}
+},
+/* Tests for referenced PTR_TO_BTF_ID */
+{
+	"map_kptr: ref: loaded pointer marked as untrusted",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_1, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_this_cpu_ptr),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 type=untrusted_ptr_or_null_ expected=percpu_ptr_",
+},
+{
+	"map_kptr: ref: reject off != 0",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "dereference of modified ptr_ ptr R2 off=4 disallowed",
+},
+{
+	"map_kptr: ref: reference state created and released on xchg",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "Unreleased reference id=5 alloc_insn=20",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 15 },
+	}
+},
+{
+	"map_kptr: ref: reject STX",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "accessing referenced kptr disallowed",
+},
+{
+	"map_kptr: ref: reject ST",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 8, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "accessing referenced kptr disallowed",
+},
+/* Tests for PTR_TO_PERCPU_BTF_ID */
+{
+	"map_kptr: percpu: loaded pointer marked as percpu",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_this_cpu_ptr),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 type=percpu_ptr_or_null_ expected=percpu_ptr_",
+},
+{
+	"map_kptr: percpu: reject store of untrusted_ptr_",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 8),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 16),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R1 type=untrusted_ptr_ expected=percpu_ptr_or_null_",
+},
+{
+	"map_kptr: percpu: reject store of ptr_",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 16),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R0 type=ptr_ expected=percpu_ptr_or_null_",
+},
+{
+	"map_kptr: percpu: reject store of user_ptr_",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 24),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 16),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R1 type=user_ptr_ expected=percpu_ptr_or_null_",
+},
+{
+	"map_kptr: percpu: bpf_kptr_xchg rejected",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 16),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "off=16 kptr isn't referenced kptr",
+},
+{
+	"map_kptr: percpu: bpf_kfunc_call_test_kptr_get rejected",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 16),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "arg#0 no referenced kptr at map value offset=16",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_kptr_get", 14 },
+	}
+},
+/* Tests for PTR_TO_BTF_ID | MEM_USER */
+{
+	"map_kptr: user: loaded pointer marked as user",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 24),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_this_cpu_ptr),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 type=user_ptr_or_null_ expected=percpu_ptr_",
+},
+{
+	"map_kptr: user: reject user pointer deref",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 24),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 8),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 is ptr_prog_test_ref_kfunc access user memory: off=8",
+},
+{
+	"map_kptr: user: reject store of untrusted_ptr_",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 8),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 24),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R1 type=untrusted_ptr_ expected=user_ptr_or_null_",
+},
+{
+	"map_kptr: user: reject store of ptr_",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 24),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R0 type=ptr_ expected=user_ptr_or_null_",
+},
+{
+	"map_kptr: user: reject store of percpu_ptr_",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 16),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 24),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R1 type=percpu_ptr_ expected=user_ptr_or_null_",
+},
+{
+	"map_kptr: user: bpf_kptr_xchg rejected",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 24),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "off=24 kptr isn't referenced kptr",
+},
+{
+	"map_kptr: user: bpf_kfunc_call_test_kptr_get rejected",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 24),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "arg#0 no referenced kptr at map value offset=24",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_kptr_get", 14 },
+	}
+},
-- 
2.35.1

Re: [PATCH bpf-next v2 00/15] Introduce typed pointer support in BPF maps

[patchwork-bot+netdevbpf]

Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:

On Thu, 17 Mar 2022 17:29:42 +0530 you wrote:
> This set enables storing pointers of a certain type in BPF map, and extends the
> verifier to enforce type safety and lifetime correctness properties.
> 
> The infrastructure being added is generic enough for allowing storing any kind
> of pointers whose type is available using BTF (user or kernel) in the future
> (e.g. strongly typed memory allocation in BPF program), which are internally
> tracked in the verifier as PTR_TO_BTF_ID, but for now the series limits them to
> four kinds of pointers obtained from the kernel.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2,01/15] bpf: Factor out fd returning from bpf_btf_find_by_name_kind
    https://git.kernel.org/bpf/bpf-next/c/edc3ec09ab70
  - [bpf-next,v2,02/15] bpf: Make btf_find_field more generic
    (no matching commit)
  - [bpf-next,v2,03/15] bpf: Allow storing unreferenced kptr in map
    (no matching commit)
  - [bpf-next,v2,04/15] bpf: Allow storing referenced kptr in map
    (no matching commit)
  - [bpf-next,v2,05/15] bpf: Allow storing percpu kptr in map
    (no matching commit)
  - [bpf-next,v2,06/15] bpf: Allow storing user kptr in map
    (no matching commit)
  - [bpf-next,v2,07/15] bpf: Prevent escaping of kptr loaded from maps
    (no matching commit)
  - [bpf-next,v2,08/15] bpf: Adapt copy_map_value for multiple offset case
    (no matching commit)
  - [bpf-next,v2,09/15] bpf: Always raise reference in btf_get_module_btf
    https://git.kernel.org/bpf/bpf-next/c/9492450fd287
  - [bpf-next,v2,10/15] bpf: Populate pairs of btf_id and destructor kfunc in btf
    (no matching commit)
  - [bpf-next,v2,11/15] bpf: Wire up freeing of referenced kptr
    (no matching commit)
  - [bpf-next,v2,12/15] bpf: Teach verifier about kptr_get kfunc helpers
    (no matching commit)
  - [bpf-next,v2,13/15] libbpf: Add kptr type tag macros to bpf_helpers.h
    (no matching commit)
  - [bpf-next,v2,14/15] selftests/bpf: Add C tests for kptr
    (no matching commit)
  - [bpf-next,v2,15/15] selftests/bpf: Add verifier tests for kptr
    (no matching commit)

You are awesome, thank you!
-- 
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