[RFC PATCH 00/13] fs/userfaultfd: support iouring and polling

[RFC PATCH 00/13] fs/userfaultfd: support iouring and polling

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

While the overhead of userfaultfd is usually reasonable, this overhead
can still be prohibitive for low-latency backing storage, such as RDMA,
persistent memory or in-memory compression. In such cases the overhead
of scheduling and entering/exiting the kernel becomes dominant.

The natural solution for this problem is to use iouring with
userfaultfd. But besides one bug, this does not provide sufficient
performance improvement and the use of ioctls for zero/copy limits the
use of iouring for synchronous "reads" (reporting of faults/events).
This patch-set provides four solutions for this overhead:

1. Userfaultfd "polling" mode, in which the faulting thread polls after
reporting the fault instead of being de-scheduled. This fits cases in
which the handler is expected to poll for page-faults on a different
thread.

2. Asynchronous-reads, in which the faulting thread reports page-faults
(and other events) directly to the userspace handler thread. For this
matter asynchronous read completions are being introduced.

3. Write interface, which provides similar services to the zero/copy
ioctls. This allows the use of iouring for zero/copy without changing
the iouring code or making it to be userfaultfd-aware. The low bits of
the "position" are being used to encode the requested operation
(zero/cop/wp/etc).

4. Async-writes, in which the zero/copy is performed by the faulting
thread instead of the iouring thread. This reduces caching effects as
the data is likely to be used by the faulting thread and find_vma()
cannot use its cache on the iouring worker.

I will provide some benchmark results later, but some initial results
show that these patches reduce the overhead of handling a user
page-fault by over 50%.

The patches require a bit more cleanup but seem to pass the tests.

Note that the first three patches are bug fixes. I did not Cc them to
stable yet.

Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org

Nadav Amit (13):
  fs/userfaultfd: fix wrong error code on WP & !VM_MAYWRITE
  fs/userfaultfd: fix wrong file usage with iouring
  selftests/vm/userfaultfd: wake after copy failure
  fs/userfaultfd: simplify locks in userfaultfd_ctx_read
  fs/userfaultfd: introduce UFFD_FEATURE_POLL
  iov_iter: support atomic copy_page_from_iter_iovec()
  fs/userfaultfd: support read_iter to use io_uring
  fs/userfaultfd: complete reads asynchronously
  fs/userfaultfd: use iov_iter for copy/zero
  fs/userfaultfd: add write_iter() interface
  fs/userfaultfd: complete write asynchronously
  fs/userfaultfd: kmem-cache for wait-queue objects
  selftests/vm/userfaultfd: iouring and polling tests

 fs/userfaultfd.c                         | 740 ++++++++++++++++----
 include/linux/hugetlb.h                  |   4 +-
 include/linux/mm.h                       |   6 +-
 include/linux/shmem_fs.h                 |   2 +-
 include/linux/uio.h                      |   3 +
 include/linux/userfaultfd_k.h            |  10 +-
 include/uapi/linux/userfaultfd.h         |  21 +-
 lib/iov_iter.c                           |  23 +-
 mm/hugetlb.c                             |  12 +-
 mm/memory.c                              |  36 +-
 mm/shmem.c                               |  17 +-
 mm/userfaultfd.c                         |  96 ++-
 tools/testing/selftests/vm/Makefile      |   2 +-
 tools/testing/selftests/vm/userfaultfd.c | 835 +++++++++++++++++++++--
 14 files changed, 1506 insertions(+), 301 deletions(-)

-- 
2.25.1

[RFC PATCH 01/13] fs/userfaultfd: fix wrong error code on WP & !VM_MAYWRITE

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

It is possible to get an EINVAL error instead of EPERM if the following
test vm_flags have VM_UFFD_WP but do not have VM_MAYWRITE, as "ret" is
overwritten since commit cab350afcbc9 ("userfaultfd: hugetlbfs: allow
registration of ranges containing huge pages").

Fix it.

Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Fixes: cab350afcbc9 ("userfaultfd: hugetlbfs: allow registration of ranges containing huge pages")
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 000b457ad087..c8ed4320370e 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1364,6 +1364,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
 			if (end & (vma_hpagesize - 1))
 				goto out_unlock;
 		}
+		ret = -EPERM;
 		if ((vm_flags & VM_UFFD_WP) && !(cur->vm_flags & VM_MAYWRITE))
 			goto out_unlock;
 
-- 
2.25.1

[RFC PATCH 02/13] fs/userfaultfd: fix wrong file usage with iouring

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

Using io-uring with userfaultfd for reads can lead upon a fork event to
the installation of the userfaultfd file descriptor on the worker kernel
thread instead of the process that initiated the read. io-uring assumes
that no new file descriptors are installed during read.

As a result the controlling process would not be able to access the
new forked process userfaultfd file descriptor.

To solve this problem, Save the files_struct of the process that
initiated userfaultfd syscall in the context and reload it when needed.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Fixes: 2b188cc1bb85 ("Add io_uring IO interface")
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index c8ed4320370e..4fe07c1a44c6 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -27,6 +27,7 @@
 #include <linux/ioctl.h>
 #include <linux/security.h>
 #include <linux/hugetlb.h>
+#include <linux/fdtable.h>
 
 int sysctl_unprivileged_userfaultfd __read_mostly = 1;
 
@@ -76,6 +77,8 @@ struct userfaultfd_ctx {
 	bool mmap_changing;
 	/* mm with one ore more vmas attached to this userfaultfd_ctx */
 	struct mm_struct *mm;
+	/* controlling process files as they might be different than current */
+	struct files_struct *files;
 };
 
 struct userfaultfd_fork_ctx {
@@ -173,6 +176,7 @@ static void userfaultfd_ctx_put(struct userfaultfd_ctx *ctx)
 		VM_BUG_ON(spin_is_locked(&ctx->fd_wqh.lock));
 		VM_BUG_ON(waitqueue_active(&ctx->fd_wqh));
 		mmdrop(ctx->mm);
+		put_files_struct(ctx->files);
 		kmem_cache_free(userfaultfd_ctx_cachep, ctx);
 	}
 }
@@ -666,6 +670,8 @@ int dup_userfaultfd(struct vm_area_struct *vma, struct list_head *fcs)
 		ctx->mm = vma->vm_mm;
 		mmgrab(ctx->mm);
 
+		ctx->files = octx->files;
+		atomic_inc(&ctx->files->count);
 		userfaultfd_ctx_get(octx);
 		WRITE_ONCE(octx->mmap_changing, true);
 		fctx->orig = octx;
@@ -976,10 +982,32 @@ static int resolve_userfault_fork(struct userfaultfd_ctx *ctx,
 				  struct userfaultfd_ctx *new,
 				  struct uffd_msg *msg)
 {
+	struct files_struct *files = NULL;
 	int fd;
 
+	BUG_ON(new->files == NULL);
+
+	/*
+	 * This function can be called from another context than the controlling
+	 * process, for instance, for an io-uring submission kernel thread. If
+	 * that is the case we must ensure the correct files are being used.
+	 */
+	if (current->files != new->files) {
+		task_lock(current);
+		files = current->files;
+		current->files = new->files;
+		task_unlock(current);
+	}
+
 	fd = anon_inode_getfd("[userfaultfd]", &userfaultfd_fops, new,
 			      O_RDWR | (new->flags & UFFD_SHARED_FCNTL_FLAGS));
+
+	if (files != NULL) {
+		task_lock(current);
+		current->files = files;
+		task_unlock(current);
+	}
+
 	if (fd < 0)
 		return fd;
 
@@ -1986,6 +2014,8 @@ SYSCALL_DEFINE1(userfaultfd, int, flags)
 	/* prevent the mm struct to be freed */
 	mmgrab(ctx->mm);
 
+	ctx->files = get_files_struct(current);
+
 	fd = anon_inode_getfd("[userfaultfd]", &userfaultfd_fops, ctx,
 			      O_RDWR | (flags & UFFD_SHARED_FCNTL_FLAGS));
 	if (fd < 0) {
-- 
2.25.1

[RFC PATCH 03/13] selftests/vm/userfaultfd: wake after copy failure

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

When userfaultfd copy-ioctl fails since the PTE already exists, an
-EEXIST error is returned and the faulting thread is not woken. The
current userfaultfd test does not wake the faulting thread in such case.
The assumption is presumably that another thread set the PTE through
copy/wp ioctl and would wake the faulting thread or that alternatively
the fault handler would realize there is no need to "must_wait" and
continue. This is not necessarily true.

There is an assumption that the "must_wait" tests in handle_userfault()
are sufficient to provide definitive answer whether the offending PTE is
populated or not. However, userfaultfd_must_wait() test is lockless.
Consequently, concurrent calls to ptep_modify_prot_start(), for
instance, can clear the PTE and can cause userfaultfd_must_wait()
to wrongly assume it is not populated and a wait is needed.

There are therefore 3 options:
(1) Change the tests to wake on copy failure.
(2) Wake faulting thread unconditionally on zero/copy ioctls before
    returning -EEXIST.
(3) Change the userfaultfd_must_wait() to hold locks.

This patch took the first approach, but the others are valid solutions
with different tradeoffs.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 tools/testing/selftests/vm/userfaultfd.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index 9b0912a01777..f7e6cf43db71 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -484,6 +484,18 @@ static void retry_copy_page(int ufd, struct uffdio_copy *uffdio_copy,
 	}
 }
 
+static void wake_range(int ufd, unsigned long addr, unsigned long len)
+{
+	struct uffdio_range uffdio_wake;
+
+	uffdio_wake.start = addr;
+	uffdio_wake.len = len;
+
+	if (ioctl(ufd, UFFDIO_WAKE, &uffdio_wake))
+		fprintf(stderr, "error waking %lu\n",
+			addr), exit(1);
+}
+
 static int __copy_page(int ufd, unsigned long offset, bool retry)
 {
 	struct uffdio_copy uffdio_copy;
@@ -507,6 +519,7 @@ static int __copy_page(int ufd, unsigned long offset, bool retry)
 				uffdio_copy.copy);
 			exit(1);
 		}
+		wake_range(ufd, uffdio_copy.dst, page_size);
 	} else if (uffdio_copy.copy != page_size) {
 		fprintf(stderr, "UFFDIO_COPY unexpected copy %Ld\n",
 			uffdio_copy.copy); exit(1);
-- 
2.25.1

[RFC PATCH 04/13] fs/userfaultfd: simplify locks in userfaultfd_ctx_read

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

Small refactoring to reduce the number of locations in which locks are
released in userfaultfd_ctx_read(), as this makes the understanding of
the code and its changes harder.

No functional change intended.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 4fe07c1a44c6..fedf7c1615d5 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1039,6 +1039,7 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 		set_current_state(TASK_INTERRUPTIBLE);
 		spin_lock(&ctx->fault_pending_wqh.lock);
 		uwq = find_userfault(ctx);
+		ret = -EAGAIN;
 		if (uwq) {
 			/*
 			 * Use a seqcount to repeat the lockless check
@@ -1077,11 +1078,11 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 
 			/* careful to always initialize msg if ret == 0 */
 			*msg = uwq->msg;
-			spin_unlock(&ctx->fault_pending_wqh.lock);
 			ret = 0;
-			break;
 		}
 		spin_unlock(&ctx->fault_pending_wqh.lock);
+		if (!ret)
+			break;
 
 		spin_lock(&ctx->event_wqh.lock);
 		uwq = find_userfault_evt(ctx);
@@ -1099,17 +1100,14 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 				 * reference on it.
 				 */
 				userfaultfd_ctx_get(fork_nctx);
-				spin_unlock(&ctx->event_wqh.lock);
-				ret = 0;
-				break;
+			} else {
+				userfaultfd_event_complete(ctx, uwq);
 			}
-
-			userfaultfd_event_complete(ctx, uwq);
-			spin_unlock(&ctx->event_wqh.lock);
 			ret = 0;
-			break;
 		}
 		spin_unlock(&ctx->event_wqh.lock);
+		if (!ret)
+			break;
 
 		if (signal_pending(current)) {
 			ret = -ERESTARTSYS;
-- 
2.25.1

[RFC PATCH 05/13] fs/userfaultfd: introduce UFFD_FEATURE_POLL

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

Add a feature UFFD_FEATURE_POLL that makes the faulting thread spin
while waiting for the page-fault to be handled.

Users of this feature should be wise by setting the page-fault handling
thread on another physical CPU and to potentially ensure that there are
available cores to run the handler, as otherwise they will see
performance degradation.

We can later enhance it by setting one or two timeouts: one timeout
until the page-fault is handled and another until the handler was
woken.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c                 | 24 ++++++++++++++++++++----
 include/uapi/linux/userfaultfd.h |  9 ++++++++-
 2 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index fedf7c1615d5..b6a04e526025 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -122,7 +122,9 @@ static int userfaultfd_wake_function(wait_queue_entry_t *wq, unsigned mode,
 	if (len && (start > uwq->msg.arg.pagefault.address ||
 		    start + len <= uwq->msg.arg.pagefault.address))
 		goto out;
-	WRITE_ONCE(uwq->waken, true);
+
+	smp_store_mb(uwq->waken, true);
+
 	/*
 	 * The Program-Order guarantees provided by the scheduler
 	 * ensure uwq->waken is visible before the task is woken.
@@ -377,6 +379,7 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	vm_fault_t ret = VM_FAULT_SIGBUS;
 	bool must_wait;
 	long blocking_state;
+	bool poll;
 
 	/*
 	 * We don't do userfault handling for the final child pid update.
@@ -410,6 +413,8 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	if (ctx->features & UFFD_FEATURE_SIGBUS)
 		goto out;
 
+	poll = ctx->features & UFFD_FEATURE_POLL;
+
 	/*
 	 * If it's already released don't get it. This avoids to loop
 	 * in __get_user_pages if userfaultfd_release waits on the
@@ -495,7 +500,10 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	 * following the spin_unlock to happen before the list_add in
 	 * __add_wait_queue.
 	 */
-	set_current_state(blocking_state);
+
+	if (!poll)
+		set_current_state(blocking_state);
+
 	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 
 	if (!is_vm_hugetlb_page(vmf->vma))
@@ -509,10 +517,18 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 
 	if (likely(must_wait && !READ_ONCE(ctx->released))) {
 		wake_up_poll(&ctx->fd_wqh, EPOLLIN);
-		schedule();
+		if (poll) {
+			while (!READ_ONCE(uwq.waken) && !READ_ONCE(ctx->released) &&
+			       !signal_pending(current)) {
+				cpu_relax();
+				cond_resched();
+			}
+		} else
+			schedule();
 	}
 
-	__set_current_state(TASK_RUNNING);
+	if (!poll)
+		__set_current_state(TASK_RUNNING);
 
 	/*
 	 * Here we race with the list_del; list_add in
diff --git a/include/uapi/linux/userfaultfd.h b/include/uapi/linux/userfaultfd.h
index e7e98bde221f..4eeba4235afe 100644
--- a/include/uapi/linux/userfaultfd.h
+++ b/include/uapi/linux/userfaultfd.h
@@ -27,7 +27,9 @@
 			   UFFD_FEATURE_MISSING_HUGETLBFS |	\
 			   UFFD_FEATURE_MISSING_SHMEM |		\
 			   UFFD_FEATURE_SIGBUS |		\
-			   UFFD_FEATURE_THREAD_ID)
+			   UFFD_FEATURE_THREAD_ID |		\
+			   UFFD_FEATURE_POLL)
+
 #define UFFD_API_IOCTLS				\
 	((__u64)1 << _UFFDIO_REGISTER |		\
 	 (__u64)1 << _UFFDIO_UNREGISTER |	\
@@ -171,6 +173,10 @@ struct uffdio_api {
 	 *
 	 * UFFD_FEATURE_THREAD_ID pid of the page faulted task_struct will
 	 * be returned, if feature is not requested 0 will be returned.
+	 *
+	 * UFFD_FEATURE_POLL polls upon page-fault if the feature is requested
+	 * instead of descheduling. This feature should only be enabled for
+	 * low-latency handlers and when CPUs are not overcomitted.
 	 */
 #define UFFD_FEATURE_PAGEFAULT_FLAG_WP		(1<<0)
 #define UFFD_FEATURE_EVENT_FORK			(1<<1)
@@ -181,6 +187,7 @@ struct uffdio_api {
 #define UFFD_FEATURE_EVENT_UNMAP		(1<<6)
 #define UFFD_FEATURE_SIGBUS			(1<<7)
 #define UFFD_FEATURE_THREAD_ID			(1<<8)
+#define UFFD_FEATURE_POLL			(1<<9)
 	__u64 features;
 
 	__u64 ioctls;
-- 
2.25.1

[RFC PATCH 06/13] iov_iter: support atomic copy_page_from_iter_iovec()

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

copy_page_from_iter_iovec() cannot be used when preemption is enabled.

Change copy_page_from_iter_iovec() into __copy_page_from_iter_iovec()
with an additional parameter that says whether the caller runs in atomic
context. When __copy_page_from_iter_iovec() is used in an atomic context
it will gracefully fail but would not lead to a deadlock. The caller
is expected to recover from such failure gracefully.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 include/linux/uio.h |  3 +++
 lib/iov_iter.c      | 23 +++++++++++++++++------
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/include/linux/uio.h b/include/linux/uio.h
index 72d88566694e..7c90f7371a6f 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -121,6 +121,9 @@ size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
 			 struct iov_iter *i);
 size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
 			 struct iov_iter *i);
+size_t __copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
+			 struct iov_iter *i, bool atomic);
+
 
 size_t _copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
 size_t _copy_from_iter(void *addr, size_t bytes, struct iov_iter *i);
diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 1635111c5bd2..e597df6a46a7 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -246,7 +246,7 @@ static size_t copy_page_to_iter_iovec(struct page *page, size_t offset, size_t b
 }
 
 static size_t copy_page_from_iter_iovec(struct page *page, size_t offset, size_t bytes,
-			 struct iov_iter *i)
+			 struct iov_iter *i, bool atomic)
 {
 	size_t skip, copy, left, wanted;
 	const struct iovec *iov;
@@ -259,14 +259,15 @@ static size_t copy_page_from_iter_iovec(struct page *page, size_t offset, size_t
 	if (unlikely(!bytes))
 		return 0;
 
-	might_fault();
+	if (!atomic)
+		might_fault();
 	wanted = bytes;
 	iov = i->iov;
 	skip = i->iov_offset;
 	buf = iov->iov_base + skip;
 	copy = min(bytes, iov->iov_len - skip);
 
-	if (IS_ENABLED(CONFIG_HIGHMEM) && !fault_in_pages_readable(buf, copy)) {
+	if (atomic || (IS_ENABLED(CONFIG_HIGHMEM) && !fault_in_pages_readable(buf, copy))) {
 		kaddr = kmap_atomic(page);
 		to = kaddr + offset;
 
@@ -295,6 +296,9 @@ static size_t copy_page_from_iter_iovec(struct page *page, size_t offset, size_t
 		buf += copy;
 		kunmap_atomic(kaddr);
 		copy = min(bytes, iov->iov_len - skip);
+		if (atomic)
+			goto done;
+
 	}
 	/* Too bad - revert to non-atomic kmap */
 
@@ -929,8 +933,8 @@ size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
 }
 EXPORT_SYMBOL(copy_page_to_iter);
 
-size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
-			 struct iov_iter *i)
+size_t __copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
+			 struct iov_iter *i, bool atomic)
 {
 	if (unlikely(!page_copy_sane(page, offset, bytes)))
 		return 0;
@@ -944,7 +948,14 @@ size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
 		kunmap_atomic(kaddr);
 		return wanted;
 	} else
-		return copy_page_from_iter_iovec(page, offset, bytes, i);
+		return copy_page_from_iter_iovec(page, offset, bytes, i, atomic);
+}
+EXPORT_SYMBOL(__copy_page_from_iter);
+
+size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
+			 struct iov_iter *i)
+{
+	return __copy_page_from_iter(page, offset, bytes, i, false);
 }
 EXPORT_SYMBOL(copy_page_from_iter);
 
-- 
2.25.1

[RFC PATCH 07/13] fs/userfaultfd: support read_iter to use io_uring

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

iouring with userfaultfd cannot currently be used fixed buffers since
userfaultfd does not provide read_iter(). This is required to allow
asynchronous (queued) reads from userfaultfd.

To support async-reads of userfaultfd provide read_iter() instead of
read().

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index b6a04e526025..6333b4632742 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1195,9 +1195,9 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 	return ret;
 }
 
-static ssize_t userfaultfd_read(struct file *file, char __user *buf,
-				size_t count, loff_t *ppos)
+static ssize_t userfaultfd_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
+	struct file *file = iocb->ki_filp;
 	struct userfaultfd_ctx *ctx = file->private_data;
 	ssize_t _ret, ret = 0;
 	struct uffd_msg msg;
@@ -1207,16 +1207,18 @@ static ssize_t userfaultfd_read(struct file *file, char __user *buf,
 		return -EINVAL;
 
 	for (;;) {
-		if (count < sizeof(msg))
+		if (iov_iter_count(to) < sizeof(msg))
 			return ret ? ret : -EINVAL;
 		_ret = userfaultfd_ctx_read(ctx, no_wait, &msg);
 		if (_ret < 0)
 			return ret ? ret : _ret;
-		if (copy_to_user((__u64 __user *) buf, &msg, sizeof(msg)))
-			return ret ? ret : -EFAULT;
+
+		_ret = copy_to_iter(&msg, sizeof(msg), to);
+		if (_ret != sizeof(msg))
+			return ret ? ret : -EINVAL;
+
 		ret += sizeof(msg);
-		buf += sizeof(msg);
-		count -= sizeof(msg);
+
 		/*
 		 * Allow to read more than one fault at time but only
 		 * block if waiting for the very first one.
@@ -1980,7 +1982,7 @@ static const struct file_operations userfaultfd_fops = {
 #endif
 	.release	= userfaultfd_release,
 	.poll		= userfaultfd_poll,
-	.read		= userfaultfd_read,
+	.read_iter	= userfaultfd_read_iter,
 	.unlocked_ioctl = userfaultfd_ioctl,
 	.compat_ioctl	= compat_ptr_ioctl,
 	.llseek		= noop_llseek,
-- 
2.25.1

[RFC PATCH 08/13] fs/userfaultfd: complete reads asynchronously

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

Complete reads asynchronously to allow io_uring to complete reads
asynchronously.

Reads, which report page-faults and events, can only be performed
asynchronously if the read is performed into a kernel buffer, and
therefore guarantee that no page-fault would occur during the completion
of the read. Otherwise, we would have needed to handle nested
page-faults or do expensive pinning/unpinning of the pages into which
the read is performed.

Userfaultfd holds in its context the kiocb and iov_iter that would be
used for the next asynchronous read (can be extended later into a list
to hold more than a single enqueued read).  If such a buffer is
available and a fault occurs, the fault is reported to the user and the
fault is added to the fault workqueue instead of the pending-fault
workqueue.

There is a need to prevent a race between synchronous and asynchronous
reads, so reads will first use buffers that were previous enqueued and
only later pending-faults and events. For this matter a new
"notification" lock is introduced that is held while enqueuing new
events and pending faults and during event reads. It may be possible to
use the fd_wqh.lock instead, but having a separate lock for the matter
seems cleaner.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c | 265 +++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 235 insertions(+), 30 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 6333b4632742..db1a963f6ae2 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -44,9 +44,10 @@ enum userfaultfd_state {
  *
  * Locking order:
  *	fd_wqh.lock
- *		fault_pending_wqh.lock
- *			fault_wqh.lock
- *		event_wqh.lock
+ *		notification_lock
+ *			fault_pending_wqh.lock
+ *				fault_wqh.lock
+ *			event_wqh.lock
  *
  * To avoid deadlocks, IRQs must be disabled when taking any of the above locks,
  * since fd_wqh.lock is taken by aio_poll() while it's holding a lock that's
@@ -79,6 +80,16 @@ struct userfaultfd_ctx {
 	struct mm_struct *mm;
 	/* controlling process files as they might be different than current */
 	struct files_struct *files;
+	/*
+	 * lock for sync and async userfaultfd reads, which must be held when
+	 * enqueueing into fault_pending_wqh or event_wqh, upon userfaultfd
+	 * reads and on accesses of iocb_callback and to.
+	 */
+	spinlock_t notification_lock;
+	/* kiocb struct that is used for the next asynchronous read */
+	struct kiocb *iocb_callback;
+	/* the iterator that is used for the next asynchronous read */
+	struct iov_iter to;
 };
 
 struct userfaultfd_fork_ctx {
@@ -356,6 +367,53 @@ static inline long userfaultfd_get_blocking_state(unsigned int flags)
 	return TASK_UNINTERRUPTIBLE;
 }
 
+static bool userfaultfd_get_async_complete_locked(struct userfaultfd_ctx *ctx,
+				struct kiocb **iocb, struct iov_iter *iter)
+{
+	if (!ctx->released)
+		lockdep_assert_held(&ctx->notification_lock);
+
+	if (ctx->iocb_callback == NULL)
+		return false;
+
+	*iocb = ctx->iocb_callback;
+	*iter = ctx->to;
+
+	ctx->iocb_callback = NULL;
+	ctx->to.kvec = NULL;
+	return true;
+}
+
+static bool userfaultfd_get_async_complete(struct userfaultfd_ctx *ctx,
+				struct kiocb **iocb, struct iov_iter *iter)
+{
+	bool r;
+
+	spin_lock_irq(&ctx->notification_lock);
+	r = userfaultfd_get_async_complete_locked(ctx, iocb, iter);
+	spin_unlock_irq(&ctx->notification_lock);
+	return r;
+}
+
+static void userfaultfd_copy_async_msg(struct kiocb *iocb,
+				       struct iov_iter *iter,
+				       struct uffd_msg *msg,
+				       int ret)
+{
+
+	const struct kvec *kvec = iter->kvec;
+
+	if (ret == 0)
+		ret = copy_to_iter(msg, sizeof(*msg), iter);
+
+	/* Should never fail as we guarantee that we use a kernel buffer */
+	WARN_ON_ONCE(ret != sizeof(*msg));
+	iocb->ki_complete(iocb, ret, 0);
+
+	kfree(kvec);
+	iter->kvec = NULL;
+}
+
 /*
  * The locking rules involved in returning VM_FAULT_RETRY depending on
  * FAULT_FLAG_ALLOW_RETRY, FAULT_FLAG_RETRY_NOWAIT and
@@ -380,6 +438,10 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	bool must_wait;
 	long blocking_state;
 	bool poll;
+	bool async = false;
+	struct kiocb *iocb;
+	struct iov_iter iter;
+	wait_queue_head_t *wqh;
 
 	/*
 	 * We don't do userfault handling for the final child pid update.
@@ -489,12 +551,29 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 
 	blocking_state = userfaultfd_get_blocking_state(vmf->flags);
 
-	spin_lock_irq(&ctx->fault_pending_wqh.lock);
+	/*
+	 * Abuse fd_wqh.lock to protect against concurrent reads to avoid a
+	 * scenario in which a fault/event is queued, and read returns
+	 * -EIOCBQUEUED.
+	 */
+	spin_lock_irq(&ctx->notification_lock);
+	async = userfaultfd_get_async_complete_locked(ctx, &iocb, &iter);
+	wqh = &ctx->fault_pending_wqh;
+
+	if (async)
+		wqh = &ctx->fault_wqh;
+
 	/*
 	 * After the __add_wait_queue the uwq is visible to userland
 	 * through poll/read().
 	 */
-	__add_wait_queue(&ctx->fault_pending_wqh, &uwq.wq);
+	spin_lock(&wqh->lock);
+
+	__add_wait_queue(wqh, &uwq.wq);
+
+	/* Ensure it is queued before userspace is informed. */
+	smp_wmb();
+
 	/*
 	 * The smp_mb() after __set_current_state prevents the reads
 	 * following the spin_unlock to happen before the list_add in
@@ -504,7 +583,15 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	if (!poll)
 		set_current_state(blocking_state);
 
-	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
+	spin_unlock(&wqh->lock);
+	spin_unlock_irq(&ctx->notification_lock);
+
+	/*
+	 * Do the copy after the lock is relinquished to avoid circular lock
+	 * dependencies.
+	 */
+	if (async)
+		userfaultfd_copy_async_msg(iocb, &iter, &uwq.msg, 0);
 
 	if (!is_vm_hugetlb_page(vmf->vma))
 		must_wait = userfaultfd_must_wait(ctx, vmf->address, vmf->flags,
@@ -516,7 +603,9 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	mmap_read_unlock(mm);
 
 	if (likely(must_wait && !READ_ONCE(ctx->released))) {
-		wake_up_poll(&ctx->fd_wqh, EPOLLIN);
+		if (!async)
+			wake_up_poll(&ctx->fd_wqh, EPOLLIN);
+
 		if (poll) {
 			while (!READ_ONCE(uwq.waken) && !READ_ONCE(ctx->released) &&
 			       !signal_pending(current)) {
@@ -544,13 +633,21 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	 * kernel stack can be released after the list_del_init.
 	 */
 	if (!list_empty_careful(&uwq.wq.entry)) {
-		spin_lock_irq(&ctx->fault_pending_wqh.lock);
+		local_irq_disable();
+		if (!async)
+			spin_lock(&ctx->fault_pending_wqh.lock);
+		spin_lock(&ctx->fault_wqh.lock);
+
 		/*
 		 * No need of list_del_init(), the uwq on the stack
 		 * will be freed shortly anyway.
 		 */
 		list_del(&uwq.wq.entry);
-		spin_unlock_irq(&ctx->fault_pending_wqh.lock);
+
+		spin_unlock(&ctx->fault_wqh.lock);
+		if (!async)
+			spin_unlock(&ctx->fault_pending_wqh.lock);
+		local_irq_enable();
 	}
 
 	/*
@@ -563,10 +660,17 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	return ret;
 }
 
+
+static int resolve_userfault_fork(struct userfaultfd_ctx *ctx,
+				  struct userfaultfd_ctx *new,
+				  struct uffd_msg *msg);
+
 static void userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx,
 					      struct userfaultfd_wait_queue *ewq)
 {
 	struct userfaultfd_ctx *release_new_ctx;
+	struct iov_iter iter;
+	struct kiocb *iocb;
 
 	if (WARN_ON_ONCE(current->flags & PF_EXITING))
 		goto out;
@@ -575,12 +679,42 @@ static void userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx,
 	init_waitqueue_entry(&ewq->wq, current);
 	release_new_ctx = NULL;
 
-	spin_lock_irq(&ctx->event_wqh.lock);
+retry:
+	spin_lock_irq(&ctx->notification_lock);
+
 	/*
-	 * After the __add_wait_queue the uwq is visible to userland
-	 * through poll/read().
+	 * Submit asynchronously when needed, and release the notification lock
+	 * as soon as the event is either queued on the work queue or an entry
+	 * is taken.
+	 */
+	if (userfaultfd_get_async_complete_locked(ctx, &iocb, &iter)) {
+		int r = 0;
+
+		spin_unlock_irq(&ctx->notification_lock);
+		if (ewq->msg.event == UFFD_EVENT_FORK) {
+			struct userfaultfd_ctx *new =
+				(struct userfaultfd_ctx *)(unsigned long)
+					ewq->msg.arg.reserved.reserved1;
+
+			r = resolve_userfault_fork(ctx, new, &ewq->msg);
+		}
+		userfaultfd_copy_async_msg(iocb, &iter, &ewq->msg, r);
+
+		if (r != 0)
+			goto retry;
+
+		goto out;
+	}
+
+	spin_lock(&ctx->event_wqh.lock);
+	/*
+	 * After the __add_wait_queue or the call to ki_complete the uwq is
+	 * visible to userland through poll/read().
 	 */
 	__add_wait_queue(&ctx->event_wqh, &ewq->wq);
+
+	spin_unlock(&ctx->notification_lock);
+
 	for (;;) {
 		set_current_state(TASK_KILLABLE);
 		if (ewq->msg.event == 0)
@@ -683,6 +817,7 @@ int dup_userfaultfd(struct vm_area_struct *vma, struct list_head *fcs)
 		ctx->features = octx->features;
 		ctx->released = false;
 		ctx->mmap_changing = false;
+		ctx->iocb_callback = NULL;
 		ctx->mm = vma->vm_mm;
 		mmgrab(ctx->mm);
 
@@ -854,6 +989,15 @@ void userfaultfd_unmap_complete(struct mm_struct *mm, struct list_head *uf)
 	}
 }
 
+static void userfaultfd_cancel_async_reads(struct userfaultfd_ctx *ctx)
+{
+	struct iov_iter iter;
+	struct kiocb *iocb;
+
+	while (userfaultfd_get_async_complete(ctx, &iocb, &iter))
+		userfaultfd_copy_async_msg(iocb, &iter, NULL, -EBADF);
+}
+
 static int userfaultfd_release(struct inode *inode, struct file *file)
 {
 	struct userfaultfd_ctx *ctx = file->private_data;
@@ -912,6 +1056,8 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
 	__wake_up(&ctx->fault_wqh, TASK_NORMAL, 1, &range);
 	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 
+	userfaultfd_cancel_async_reads(ctx);
+
 	/* Flush pending events that may still wait on event_wqh */
 	wake_up_all(&ctx->event_wqh);
 
@@ -1032,8 +1178,39 @@ static int resolve_userfault_fork(struct userfaultfd_ctx *ctx,
 	return 0;
 }
 
-static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
-				    struct uffd_msg *msg)
+static ssize_t userfaultfd_enqueue(struct kiocb *iocb,
+				   struct userfaultfd_ctx *ctx,
+				   struct iov_iter *to)
+{
+	lockdep_assert_irqs_disabled();
+
+	if (!to)
+		return -EAGAIN;
+
+	if (is_sync_kiocb(iocb) ||
+	    (!iov_iter_is_bvec(to) && !iov_iter_is_kvec(to)))
+		return -EAGAIN;
+
+	/* Check again if there are pending events */
+	if (waitqueue_active(&ctx->fault_pending_wqh) ||
+	    waitqueue_active(&ctx->event_wqh))
+		return -EAGAIN;
+
+	/*
+	 * Check that there is no other callback already registered, as
+	 * we only support one at the moment.
+	 */
+	if (ctx->iocb_callback)
+		return -EAGAIN;
+
+	ctx->iocb_callback = iocb;
+	ctx->to = *to;
+	return -EIOCBQUEUED;
+}
+
+static ssize_t userfaultfd_ctx_read(struct kiocb *iocb,
+				    struct userfaultfd_ctx *ctx, int no_wait,
+				    struct uffd_msg *msg, struct iov_iter *to)
 {
 	ssize_t ret;
 	DECLARE_WAITQUEUE(wait, current);
@@ -1051,6 +1228,7 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 	/* always take the fd_wqh lock before the fault_pending_wqh lock */
 	spin_lock_irq(&ctx->fd_wqh.lock);
 	__add_wait_queue(&ctx->fd_wqh, &wait);
+	spin_lock(&ctx->notification_lock);
 	for (;;) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		spin_lock(&ctx->fault_pending_wqh.lock);
@@ -1122,21 +1300,23 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 			ret = 0;
 		}
 		spin_unlock(&ctx->event_wqh.lock);
-		if (!ret)
-			break;
 
-		if (signal_pending(current)) {
+		if (ret == -EAGAIN && signal_pending(current))
 			ret = -ERESTARTSYS;
+
+		if (ret == -EAGAIN && no_wait)
+			ret = userfaultfd_enqueue(iocb, ctx, to);
+
+		if (no_wait || ret != -EAGAIN)
 			break;
-		}
-		if (no_wait) {
-			ret = -EAGAIN;
-			break;
-		}
+
+		spin_unlock(&ctx->notification_lock);
 		spin_unlock_irq(&ctx->fd_wqh.lock);
 		schedule();
 		spin_lock_irq(&ctx->fd_wqh.lock);
+		spin_lock(&ctx->notification_lock);
 	}
+	spin_unlock(&ctx->notification_lock);
 	__remove_wait_queue(&ctx->fd_wqh, &wait);
 	__set_current_state(TASK_RUNNING);
 	spin_unlock_irq(&ctx->fd_wqh.lock);
@@ -1202,20 +1382,38 @@ static ssize_t userfaultfd_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	ssize_t _ret, ret = 0;
 	struct uffd_msg msg;
 	int no_wait = file->f_flags & O_NONBLOCK;
+	struct iov_iter _to, *async_to = NULL;
 
-	if (ctx->state == UFFD_STATE_WAIT_API)
+	if (ctx->state == UFFD_STATE_WAIT_API || READ_ONCE(ctx->released))
 		return -EINVAL;
 
+	/* Duplicate before taking the lock */
+	if (no_wait && !is_sync_kiocb(iocb) &&
+	    (iov_iter_is_bvec(to) || iov_iter_is_kvec(to))) {
+		async_to = &_to;
+		dup_iter(async_to, to, GFP_KERNEL);
+	}
+
 	for (;;) {
-		if (iov_iter_count(to) < sizeof(msg))
-			return ret ? ret : -EINVAL;
-		_ret = userfaultfd_ctx_read(ctx, no_wait, &msg);
-		if (_ret < 0)
-			return ret ? ret : _ret;
+		if (iov_iter_count(to) < sizeof(msg)) {
+			if (!ret)
+				ret = -EINVAL;
+			break;
+		}
+		_ret = userfaultfd_ctx_read(iocb, ctx, no_wait, &msg, async_to);
+		if (_ret < 0) {
+			if (ret == 0)
+				ret = _ret;
+			break;
+		}
+		async_to = NULL;
 
 		_ret = copy_to_iter(&msg, sizeof(msg), to);
-		if (_ret != sizeof(msg))
-			return ret ? ret : -EINVAL;
+		if (_ret != sizeof(msg)) {
+			if (ret == 0)
+				ret = -EINVAL;
+			break;
+		}
 
 		ret += sizeof(msg);
 
@@ -1225,6 +1423,11 @@ static ssize_t userfaultfd_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		 */
 		no_wait = O_NONBLOCK;
 	}
+
+	if (ret != -EIOCBQUEUED && async_to != NULL)
+		kfree(async_to->kvec);
+
+	return ret;
 }
 
 static void __wake_userfault(struct userfaultfd_ctx *ctx,
@@ -1997,6 +2200,7 @@ static void init_once_userfaultfd_ctx(void *mem)
 	init_waitqueue_head(&ctx->event_wqh);
 	init_waitqueue_head(&ctx->fd_wqh);
 	seqcount_spinlock_init(&ctx->refile_seq, &ctx->fault_pending_wqh.lock);
+	spin_lock_init(&ctx->notification_lock);
 }
 
 SYSCALL_DEFINE1(userfaultfd, int, flags)
@@ -2027,6 +2231,7 @@ SYSCALL_DEFINE1(userfaultfd, int, flags)
 	ctx->released = false;
 	ctx->mmap_changing = false;
 	ctx->mm = current->mm;
+	ctx->iocb_callback = NULL;
 	/* prevent the mm struct to be freed */
 	mmgrab(ctx->mm);
 
-- 
2.25.1

[RFC PATCH 09/13] fs/userfaultfd: use iov_iter for copy/zero

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

Use iov_iter for copy and zero ioctls. This is done in preparation to
support a write_iter() interface that would provide similar services as
UFFDIO_COPY/ZERO.

In the case of UFFDIO_ZERO, the iov_iter is not really used for any
purpose other than providing the length of the range that is zeroed.

Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c              | 21 ++++++--
 include/linux/hugetlb.h       |  4 +-
 include/linux/mm.h            |  6 +--
 include/linux/shmem_fs.h      |  2 +-
 include/linux/userfaultfd_k.h | 10 ++--
 mm/hugetlb.c                  | 12 +++--
 mm/memory.c                   | 36 ++++++-------
 mm/shmem.c                    | 17 +++----
 mm/userfaultfd.c              | 96 +++++++++++++++++------------------
 9 files changed, 102 insertions(+), 102 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index db1a963f6ae2..7bbee2a00d37 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1914,6 +1914,8 @@ static int userfaultfd_copy(struct userfaultfd_ctx *ctx,
 	struct uffdio_copy uffdio_copy;
 	struct uffdio_copy __user *user_uffdio_copy;
 	struct userfaultfd_wake_range range;
+	struct iov_iter iter;
+	struct iovec iov;
 
 	user_uffdio_copy = (struct uffdio_copy __user *) arg;
 
@@ -1940,10 +1942,15 @@ static int userfaultfd_copy(struct userfaultfd_ctx *ctx,
 		goto out;
 	if (uffdio_copy.mode & ~(UFFDIO_COPY_MODE_DONTWAKE|UFFDIO_COPY_MODE_WP))
 		goto out;
+
+	ret = import_single_range(READ, (__force void __user *)uffdio_copy.src,
+				  uffdio_copy.len, &iov, &iter);
+	if (unlikely(ret))
+		return ret;
+
 	if (mmget_not_zero(ctx->mm)) {
-		ret = mcopy_atomic(ctx->mm, uffdio_copy.dst, uffdio_copy.src,
-				   uffdio_copy.len, &ctx->mmap_changing,
-				   uffdio_copy.mode);
+		ret = mcopy_atomic(ctx->mm, uffdio_copy.dst, &iter,
+				   &ctx->mmap_changing, uffdio_copy.mode);
 		mmput(ctx->mm);
 	} else {
 		return -ESRCH;
@@ -1971,6 +1978,8 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx,
 	struct uffdio_zeropage uffdio_zeropage;
 	struct uffdio_zeropage __user *user_uffdio_zeropage;
 	struct userfaultfd_wake_range range;
+	struct iov_iter iter;
+	struct iovec iov;
 
 	user_uffdio_zeropage = (struct uffdio_zeropage __user *) arg;
 
@@ -1992,10 +2001,12 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx,
 	if (uffdio_zeropage.mode & ~UFFDIO_ZEROPAGE_MODE_DONTWAKE)
 		goto out;
 
+	ret = import_single_range(READ, (__force void __user *)0,
+				  uffdio_zeropage.range.len, &iov, &iter);
+
 	if (mmget_not_zero(ctx->mm)) {
 		ret = mfill_zeropage(ctx->mm, uffdio_zeropage.range.start,
-				     uffdio_zeropage.range.len,
-				     &ctx->mmap_changing);
+				     &iter, &ctx->mmap_changing);
 		mmput(ctx->mm);
 	} else {
 		return -ESRCH;
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index ebca2ef02212..2f3452e0bb84 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -137,7 +137,7 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, pte_t *dst_pte,
 				struct vm_area_struct *dst_vma,
 				unsigned long dst_addr,
-				unsigned long src_addr,
+				struct iov_iter *iter,
 				struct page **pagep);
 int hugetlb_reserve_pages(struct inode *inode, long from, long to,
 						struct vm_area_struct *vma,
@@ -312,7 +312,7 @@ static inline int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
 						pte_t *dst_pte,
 						struct vm_area_struct *dst_vma,
 						unsigned long dst_addr,
-						unsigned long src_addr,
+						struct iov_iter *iter,
 						struct page **pagep)
 {
 	BUG();
diff --git a/include/linux/mm.h b/include/linux/mm.h
index db6ae4d3fb4e..1f183c441d89 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3085,10 +3085,10 @@ extern void copy_user_huge_page(struct page *dst, struct page *src,
 				unsigned long addr_hint,
 				struct vm_area_struct *vma,
 				unsigned int pages_per_huge_page);
-extern long copy_huge_page_from_user(struct page *dst_page,
-				const void __user *usr_src,
+extern long copy_huge_page_from_iter(struct page *dst_page,
+				size_t offset, struct iov_iter *iter,
 				unsigned int pages_per_huge_page,
-				bool allow_pagefault);
+				bool atomic);
 
 /**
  * vma_is_special_huge - Are transhuge page-table entries considered special?
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
index a5a5d1d4d7b1..1973bb1c6a10 100644
--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -122,7 +122,7 @@ extern void shmem_uncharge(struct inode *inode, long pages);
 extern int shmem_mcopy_atomic_pte(struct mm_struct *dst_mm, pmd_t *dst_pmd,
 				  struct vm_area_struct *dst_vma,
 				  unsigned long dst_addr,
-				  unsigned long src_addr,
+				  struct iov_iter *iter,
 				  struct page **pagep);
 extern int shmem_mfill_zeropage_pte(struct mm_struct *dst_mm,
 				    pmd_t *dst_pmd,
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h
index a8e5f3ea9bb2..b5c1be67b0d7 100644
--- a/include/linux/userfaultfd_k.h
+++ b/include/linux/userfaultfd_k.h
@@ -35,12 +35,10 @@ extern int sysctl_unprivileged_userfaultfd;
 extern vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason);
 
 extern ssize_t mcopy_atomic(struct mm_struct *dst_mm, unsigned long dst_start,
-			    unsigned long src_start, unsigned long len,
-			    bool *mmap_changing, __u64 mode);
-extern ssize_t mfill_zeropage(struct mm_struct *dst_mm,
-			      unsigned long dst_start,
-			      unsigned long len,
-			      bool *mmap_changing);
+			    struct iov_iter *iter, bool *mmap_changing,
+			    __u64 mode);
+extern ssize_t mfill_zeropage(struct mm_struct *dst_mm, unsigned long dst_start,
+			      struct iov_iter *iter, bool *mmap_changing);
 extern int mwriteprotect_range(struct mm_struct *dst_mm,
 			       unsigned long start, unsigned long len,
 			       bool enable_wp, bool *mmap_changing);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 37f15c3c24dc..3aa779123dfe 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4603,7 +4603,7 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
 			    pte_t *dst_pte,
 			    struct vm_area_struct *dst_vma,
 			    unsigned long dst_addr,
-			    unsigned long src_addr,
+			    struct iov_iter *iter,
 			    struct page **pagep)
 {
 	struct address_space *mapping;
@@ -4622,13 +4622,15 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
 		if (IS_ERR(page))
 			goto out;
 
-		ret = copy_huge_page_from_user(page,
-						(const void __user *) src_addr,
-						pages_per_huge_page(h), false);
+		pagefault_disable();
+
+		ret = copy_huge_page_from_iter(page, 0, iter,
+						pages_per_huge_page(h), true);
+
+		pagefault_enable();
 
 		/* fallback to copy_from_user outside mmap_lock */
 		if (unlikely(ret)) {
-			ret = -ENOENT;
 			*pagep = page;
 			/* don't free the page */
 			goto out;
diff --git a/mm/memory.c b/mm/memory.c
index c48f8df6e502..650f1ba19812 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -5178,33 +5178,29 @@ void copy_user_huge_page(struct page *dst, struct page *src,
 	process_huge_page(addr_hint, pages_per_huge_page, copy_subpage, &arg);
 }
 
-long copy_huge_page_from_user(struct page *dst_page,
-				const void __user *usr_src,
-				unsigned int pages_per_huge_page,
-				bool allow_pagefault)
+long copy_huge_page_from_iter(struct page *dst_page,
+			      size_t offset,
+			      struct iov_iter *iter,
+			      unsigned int pages_per_huge_page,
+			      bool atomic)
 {
-	void *src = (void *)usr_src;
-	void *page_kaddr;
 	unsigned long i, rc = 0;
 	unsigned long ret_val = pages_per_huge_page * PAGE_SIZE;
+	unsigned long of_in_page = offset_in_page(offset);
 
-	for (i = 0; i < pages_per_huge_page; i++) {
-		if (allow_pagefault)
-			page_kaddr = kmap(dst_page + i);
-		else
-			page_kaddr = kmap_atomic(dst_page + i);
-		rc = copy_from_user(page_kaddr,
-				(const void __user *)(src + i * PAGE_SIZE),
-				PAGE_SIZE);
-		if (allow_pagefault)
-			kunmap(dst_page + i);
-		else
-			kunmap_atomic(page_kaddr);
+	for (i = offset / PAGE_SIZE; i < pages_per_huge_page; i++) {
+		size_t bytes = PAGE_SIZE - of_in_page;
+
+		rc = __copy_page_from_iter(dst_page + i, of_in_page,
+					   bytes, iter, atomic);
 
-		ret_val -= (PAGE_SIZE - rc);
-		if (rc)
+		ret_val -= rc;
+
+		if (rc != bytes)
 			break;
 
+		of_in_page = 0;
+
 		cond_resched();
 	}
 	return ret_val;
diff --git a/mm/shmem.c b/mm/shmem.c
index 537c137698f8..77232cf8bd49 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2361,7 +2361,7 @@ static int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
 				  pmd_t *dst_pmd,
 				  struct vm_area_struct *dst_vma,
 				  unsigned long dst_addr,
-				  unsigned long src_addr,
+				  struct iov_iter *iter,
 				  bool zeropage,
 				  struct page **pagep)
 {
@@ -2371,7 +2371,6 @@ static int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
 	gfp_t gfp = mapping_gfp_mask(mapping);
 	pgoff_t pgoff = linear_page_index(dst_vma, dst_addr);
 	spinlock_t *ptl;
-	void *page_kaddr;
 	struct page *page;
 	pte_t _dst_pte, *dst_pte;
 	int ret;
@@ -2387,18 +2386,14 @@ static int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
 			goto out_unacct_blocks;
 
 		if (!zeropage) {	/* mcopy_atomic */
-			page_kaddr = kmap_atomic(page);
-			ret = copy_from_user(page_kaddr,
-					     (const void __user *)src_addr,
-					     PAGE_SIZE);
-			kunmap_atomic(page_kaddr);
+			ret = __copy_page_from_iter(page, 0, PAGE_SIZE, iter, true);
 
 			/* fallback to copy_from_user outside mmap_lock */
 			if (unlikely(ret)) {
 				*pagep = page;
 				shmem_inode_unacct_blocks(inode, 1);
 				/* don't free the page */
-				return -ENOENT;
+				return ret;
 			}
 		} else {		/* mfill_zeropage_atomic */
 			clear_highpage(page);
@@ -2484,11 +2479,11 @@ int shmem_mcopy_atomic_pte(struct mm_struct *dst_mm,
 			   pmd_t *dst_pmd,
 			   struct vm_area_struct *dst_vma,
 			   unsigned long dst_addr,
-			   unsigned long src_addr,
+			   struct iov_iter *iter,
 			   struct page **pagep)
 {
 	return shmem_mfill_atomic_pte(dst_mm, dst_pmd, dst_vma,
-				      dst_addr, src_addr, false, pagep);
+				      dst_addr, iter, false, pagep);
 }
 
 int shmem_mfill_zeropage_pte(struct mm_struct *dst_mm,
@@ -2499,7 +2494,7 @@ int shmem_mfill_zeropage_pte(struct mm_struct *dst_mm,
 	struct page *page = NULL;
 
 	return shmem_mfill_atomic_pte(dst_mm, dst_pmd, dst_vma,
-				      dst_addr, 0, true, &page);
+				      dst_addr, NULL, true, &page);
 }
 
 #ifdef CONFIG_TMPFS
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 9a3d451402d7..ee77fb229185 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -15,6 +15,7 @@
 #include <linux/mmu_notifier.h>
 #include <linux/hugetlb.h>
 #include <linux/shmem_fs.h>
+#include <linux/uio.h>
 #include <asm/tlbflush.h>
 #include "internal.h"
 
@@ -48,17 +49,20 @@ struct vm_area_struct *find_dst_vma(struct mm_struct *dst_mm,
 	return dst_vma;
 }
 
+/*
+ * mcopy_atomic_pte() -Returns error of the number of bytes that were not
+ * copied.
+ */
 static int mcopy_atomic_pte(struct mm_struct *dst_mm,
 			    pmd_t *dst_pmd,
 			    struct vm_area_struct *dst_vma,
 			    unsigned long dst_addr,
-			    unsigned long src_addr,
+			    struct iov_iter *iter,
 			    struct page **pagep,
 			    bool wp_copy)
 {
 	pte_t _dst_pte, *dst_pte;
 	spinlock_t *ptl;
-	void *page_kaddr;
 	int ret;
 	struct page *page;
 	pgoff_t offset, max_off;
@@ -70,17 +74,13 @@ static int mcopy_atomic_pte(struct mm_struct *dst_mm,
 		if (!page)
 			goto out;
 
-		page_kaddr = kmap_atomic(page);
-		ret = copy_from_user(page_kaddr,
-				     (const void __user *) src_addr,
-				     PAGE_SIZE);
-		kunmap_atomic(page_kaddr);
+		ret = __copy_page_from_iter(page, 0, PAGE_SIZE, iter, true);
 
 		/* fallback to copy_from_user outside mmap_lock */
-		if (unlikely(ret)) {
-			ret = -ENOENT;
+		if (unlikely(ret != PAGE_SIZE)) {
 			*pagep = page;
 			/* don't free the page */
+			ret = PAGE_SIZE - ret;
 			goto out;
 		}
 	} else {
@@ -205,7 +205,7 @@ static pmd_t *mm_alloc_pmd(struct mm_struct *mm, unsigned long address)
 static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
 					      struct vm_area_struct *dst_vma,
 					      unsigned long dst_start,
-					      unsigned long src_start,
+					      struct iov_iter *iter,
 					      unsigned long len,
 					      bool zeropage)
 {
@@ -213,7 +213,7 @@ static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
 	int vm_shared = dst_vma->vm_flags & VM_SHARED;
 	ssize_t err;
 	pte_t *dst_pte;
-	unsigned long src_addr, dst_addr;
+	unsigned long dst_addr;
 	long copied;
 	struct page *page;
 	unsigned long vma_hpagesize;
@@ -232,7 +232,6 @@ static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
 		return -EINVAL;
 	}
 
-	src_addr = src_start;
 	dst_addr = dst_start;
 	copied = 0;
 	page = NULL;
@@ -272,7 +271,7 @@ static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
 			goto out_unlock;
 	}
 
-	while (src_addr < src_start + len) {
+	while (iov_iter_count(iter) > 0) {
 		pte_t dst_pteval;
 
 		BUG_ON(dst_addr >= dst_start + len);
@@ -306,7 +305,7 @@ static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
 		}
 
 		err = hugetlb_mcopy_atomic_pte(dst_mm, dst_pte, dst_vma,
-						dst_addr, src_addr, &page);
+						dst_addr, iter, &page);
 
 		mutex_unlock(&hugetlb_fault_mutex_table[hash]);
 		i_mmap_unlock_read(mapping);
@@ -314,14 +313,14 @@ static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
 
 		cond_resched();
 
-		if (unlikely(err == -ENOENT)) {
+		if (unlikely(err > 0)) {
+			size_t offset = vma_hpagesize - err;
+
 			mmap_read_unlock(dst_mm);
 			BUG_ON(!page);
 
-			err = copy_huge_page_from_user(page,
-						(const void __user *)src_addr,
-						vma_hpagesize / PAGE_SIZE,
-						true);
+			err = copy_huge_page_from_iter(page, offset, iter,
+						vma_hpagesize / PAGE_SIZE, false);
 			if (unlikely(err)) {
 				err = -EFAULT;
 				goto out;
@@ -330,12 +329,12 @@ static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
 
 			dst_vma = NULL;
 			goto retry;
-		} else
-			BUG_ON(page);
+		} else {
+			BUG_ON(err != 0 && page);
+		}
 
 		if (!err) {
 			dst_addr += vma_hpagesize;
-			src_addr += vma_hpagesize;
 			copied += vma_hpagesize;
 
 			if (fatal_signal_pending(current))
@@ -415,7 +414,7 @@ static __always_inline ssize_t mfill_atomic_pte(struct mm_struct *dst_mm,
 						pmd_t *dst_pmd,
 						struct vm_area_struct *dst_vma,
 						unsigned long dst_addr,
-						unsigned long src_addr,
+						struct iov_iter *iter,
 						struct page **page,
 						bool zeropage,
 						bool wp_copy)
@@ -435,7 +434,7 @@ static __always_inline ssize_t mfill_atomic_pte(struct mm_struct *dst_mm,
 	if (!(dst_vma->vm_flags & VM_SHARED)) {
 		if (!zeropage)
 			err = mcopy_atomic_pte(dst_mm, dst_pmd, dst_vma,
-					       dst_addr, src_addr, page,
+					       dst_addr, iter, page,
 					       wp_copy);
 		else
 			err = mfill_zeropage_pte(dst_mm, dst_pmd,
@@ -445,30 +444,34 @@ static __always_inline ssize_t mfill_atomic_pte(struct mm_struct *dst_mm,
 		if (!zeropage)
 			err = shmem_mcopy_atomic_pte(dst_mm, dst_pmd,
 						     dst_vma, dst_addr,
-						     src_addr, page);
+						     iter, page);
 		else
 			err = shmem_mfill_zeropage_pte(dst_mm, dst_pmd,
 						       dst_vma, dst_addr);
 	}
 
+	if (zeropage && err >= 0)
+		iov_iter_advance(iter, PAGE_SIZE - err);
+
 	return err;
 }
 
 static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 					      unsigned long dst_start,
-					      unsigned long src_start,
-					      unsigned long len,
+					      struct iov_iter *iter,
 					      bool zeropage,
 					      bool *mmap_changing,
 					      __u64 mode)
 {
+	unsigned long len = iov_iter_count(iter);
 	struct vm_area_struct *dst_vma;
 	ssize_t err;
 	pmd_t *dst_pmd;
-	unsigned long src_addr, dst_addr;
+	unsigned long dst_addr;
 	long copied;
 	struct page *page;
 	bool wp_copy;
+	unsigned long remaining = iov_iter_count(iter);
 
 	/*
 	 * Sanitize the command parameters:
@@ -477,10 +480,8 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 	BUG_ON(len & ~PAGE_MASK);
 
 	/* Does the address range wrap, or is the span zero-sized? */
-	BUG_ON(src_start + len <= src_start);
 	BUG_ON(dst_start + len <= dst_start);
 
-	src_addr = src_start;
 	dst_addr = dst_start;
 	copied = 0;
 	page = NULL;
@@ -527,7 +528,7 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 	 */
 	if (is_vm_hugetlb_page(dst_vma))
 		return  __mcopy_atomic_hugetlb(dst_mm, dst_vma, dst_start,
-						src_start, len, zeropage);
+						iter, len, zeropage);
 
 	if (!vma_is_anonymous(dst_vma) && !vma_is_shmem(dst_vma))
 		goto out_unlock;
@@ -542,10 +543,10 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 	    unlikely(anon_vma_prepare(dst_vma)))
 		goto out_unlock;
 
-	while (src_addr < src_start + len) {
+	while (remaining > 0) {
 		pmd_t dst_pmdval;
 
-		BUG_ON(dst_addr >= dst_start + len);
+		BUG_ON(dst_addr >= dst_start + remaining);
 
 		dst_pmd = mm_alloc_pmd(dst_mm, dst_addr);
 		if (unlikely(!dst_pmd)) {
@@ -577,31 +578,29 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 		BUG_ON(pmd_trans_huge(*dst_pmd));
 
 		err = mfill_atomic_pte(dst_mm, dst_pmd, dst_vma, dst_addr,
-				       src_addr, &page, zeropage, wp_copy);
+				       iter, &page, zeropage, wp_copy);
 		cond_resched();
 
-		if (unlikely(err == -ENOENT)) {
-			void *page_kaddr;
+		if (unlikely(err > 0)) {
+			size_t bytes = err;
+			size_t offset = PAGE_SIZE - bytes;
 
 			mmap_read_unlock(dst_mm);
 			BUG_ON(!page);
 
-			page_kaddr = kmap(page);
-			err = copy_from_user(page_kaddr,
-					     (const void __user *) src_addr,
-					     PAGE_SIZE);
-			kunmap(page);
+			err = copy_page_from_iter(page, offset, bytes, iter);
 			if (unlikely(err)) {
 				err = -EFAULT;
 				goto out;
 			}
 			goto retry;
 		} else
-			BUG_ON(page);
+			BUG_ON(err != 0 && page);
+
+		remaining = iov_iter_count(iter);
 
 		if (!err) {
 			dst_addr += PAGE_SIZE;
-			src_addr += PAGE_SIZE;
 			copied += PAGE_SIZE;
 
 			if (fatal_signal_pending(current))
@@ -623,17 +622,16 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
 }
 
 ssize_t mcopy_atomic(struct mm_struct *dst_mm, unsigned long dst_start,
-		     unsigned long src_start, unsigned long len,
-		     bool *mmap_changing, __u64 mode)
+		     struct iov_iter *iter, bool *mmap_changing, __u64 mode)
 {
-	return __mcopy_atomic(dst_mm, dst_start, src_start, len, false,
-			      mmap_changing, mode);
+	return __mcopy_atomic(dst_mm, dst_start, iter, false, mmap_changing,
+			      mode);
 }
 
 ssize_t mfill_zeropage(struct mm_struct *dst_mm, unsigned long start,
-		       unsigned long len, bool *mmap_changing)
+		       struct iov_iter *iter, bool *mmap_changing)
 {
-	return __mcopy_atomic(dst_mm, start, 0, len, true, mmap_changing, 0);
+	return __mcopy_atomic(dst_mm, start, iter, true, mmap_changing, 0);
 }
 
 int mwriteprotect_range(struct mm_struct *dst_mm, unsigned long start,
-- 
2.25.1

[RFC PATCH 10/13] fs/userfaultfd: add write_iter() interface

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

In order to use userfaultfd with io-uring, there are two options for
extensions: support userfaultfd ioctls or provide similar functionality
through the "write" interface. The latter approach seems more compelling
as it does not require io-uring changes, and keeps all the logic of
userfaultfd where it should be. In addition it allows to provide
asynchronous completions by performing the copying/zeroing in the
faulting thread (which will be done in a later patch).

This patch enhances the userfaultfd API to provide write interface to
perform similar operations for copy/zero. The lower bits of the position
(smaller than PAGE_SHIFT) are being used to encode the required
operation: zero/copy/wake/write-protect. In the case of zeroing, the
source data is ignored and only the length is being used to determine
the size of the data that needs to be zeroed.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c                 | 96 +++++++++++++++++++++++++++++++-
 include/uapi/linux/userfaultfd.h | 14 ++++-
 2 files changed, 107 insertions(+), 3 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 7bbee2a00d37..eae6ac303951 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1140,6 +1140,34 @@ static __poll_t userfaultfd_poll(struct file *file, poll_table *wait)
 
 static const struct file_operations userfaultfd_fops;
 
+/* Open-coded version of anon_inode_getfd() to setup FMODE_PWRITE */
+static int userfaultfd_getfd(const char *name, const struct file_operations *fops,
+		     void *priv, int flags)
+{
+	int error, fd;
+	struct file *file;
+
+	error = get_unused_fd_flags(flags);
+	if (error < 0)
+		return error;
+	fd = error;
+
+	file = anon_inode_getfile(name, fops, priv, flags);
+
+	if (IS_ERR(file)) {
+		error = PTR_ERR(file);
+		goto err_put_unused_fd;
+	}
+	file->f_mode |= FMODE_PWRITE;
+	fd_install(fd, file);
+
+	return fd;
+
+err_put_unused_fd:
+	put_unused_fd(fd);
+	return error;
+}
+
 static int resolve_userfault_fork(struct userfaultfd_ctx *ctx,
 				  struct userfaultfd_ctx *new,
 				  struct uffd_msg *msg)
@@ -1161,7 +1189,7 @@ static int resolve_userfault_fork(struct userfaultfd_ctx *ctx,
 		task_unlock(current);
 	}
 
-	fd = anon_inode_getfd("[userfaultfd]", &userfaultfd_fops, new,
+	fd = userfaultfd_getfd("[userfaultfd]", &userfaultfd_fops, new,
 			      O_RDWR | (new->flags & UFFD_SHARED_FCNTL_FLAGS));
 
 	if (files != NULL) {
@@ -1496,6 +1524,69 @@ static __always_inline int validate_range(struct mm_struct *mm,
 	return 0;
 }
 
+ssize_t userfaultfd_write_iter(struct kiocb *iocb, struct iov_iter *from)
+{
+	struct file *file = iocb->ki_filp;
+	struct userfaultfd_wake_range range;
+	struct userfaultfd_ctx *ctx = file->private_data;
+	size_t len = iov_iter_count(from);
+	__u64 dst = iocb->ki_pos & PAGE_MASK;
+	unsigned long mode = iocb->ki_pos & ~PAGE_MASK;
+	bool zeropage;
+	__s64 ret;
+
+	BUG_ON(len == 0);
+
+	zeropage = mode & UFFDIO_WRITE_MODE_ZEROPAGE;
+
+	ret = -EINVAL;
+	if (mode & ~(UFFDIO_WRITE_MODE_DONTWAKE | UFFDIO_WRITE_MODE_WP |
+		     UFFDIO_WRITE_MODE_ZEROPAGE))
+		goto out;
+
+	mode = mode & (UFFDIO_WRITE_MODE_DONTWAKE | UFFDIO_WRITE_MODE_WP);
+
+	/*
+	 * Keep compatibility with zeropage ioctl, which does not allow
+	 * write-protect and dontwake.
+	 */
+	if (zeropage &&
+	    (mode & (UFFDIO_WRITE_MODE_DONTWAKE | UFFDIO_WRITE_MODE_WP)) ==
+	     (UFFDIO_WRITE_MODE_DONTWAKE | UFFDIO_WRITE_MODE_WP))
+		goto out;
+
+	ret = -EAGAIN;
+	if (READ_ONCE(ctx->mmap_changing))
+		goto out;
+
+	ret = validate_range(ctx->mm, &dst, len);
+	if (ret)
+		goto out;
+
+	if (mmget_not_zero(ctx->mm)) {
+		if (zeropage)
+			ret = mfill_zeropage(ctx->mm, dst, from,
+					     &ctx->mmap_changing);
+		else
+			ret = mcopy_atomic(ctx->mm, dst, from,
+					   &ctx->mmap_changing, mode);
+		mmput(ctx->mm);
+	} else {
+		return -ESRCH;
+	}
+	if (ret < 0)
+		goto out;
+
+	/* len == 0 would wake all */
+	range.len = ret;
+	if (!(mode & UFFDIO_COPY_MODE_DONTWAKE)) {
+		range.start = dst;
+		wake_userfault(ctx, &range);
+	}
+out:
+	return ret;
+}
+
 static inline bool vma_can_userfault(struct vm_area_struct *vma,
 				     unsigned long vm_flags)
 {
@@ -2197,6 +2288,7 @@ static const struct file_operations userfaultfd_fops = {
 	.release	= userfaultfd_release,
 	.poll		= userfaultfd_poll,
 	.read_iter	= userfaultfd_read_iter,
+	.write_iter	= userfaultfd_write_iter,
 	.unlocked_ioctl = userfaultfd_ioctl,
 	.compat_ioctl	= compat_ptr_ioctl,
 	.llseek		= noop_llseek,
@@ -2248,7 +2340,7 @@ SYSCALL_DEFINE1(userfaultfd, int, flags)
 
 	ctx->files = get_files_struct(current);
 
-	fd = anon_inode_getfd("[userfaultfd]", &userfaultfd_fops, ctx,
+	fd = userfaultfd_getfd("[userfaultfd]", &userfaultfd_fops, ctx,
 			      O_RDWR | (flags & UFFD_SHARED_FCNTL_FLAGS));
 	if (fd < 0) {
 		mmdrop(ctx->mm);
diff --git a/include/uapi/linux/userfaultfd.h b/include/uapi/linux/userfaultfd.h
index 4eeba4235afe..943e50b41742 100644
--- a/include/uapi/linux/userfaultfd.h
+++ b/include/uapi/linux/userfaultfd.h
@@ -28,7 +28,8 @@
 			   UFFD_FEATURE_MISSING_SHMEM |		\
 			   UFFD_FEATURE_SIGBUS |		\
 			   UFFD_FEATURE_THREAD_ID |		\
-			   UFFD_FEATURE_POLL)
+			   UFFD_FEATURE_POLL |			\
+			   UFFD_FEATURE_WRITE)
 
 #define UFFD_API_IOCTLS				\
 	((__u64)1 << _UFFDIO_REGISTER |		\
@@ -177,6 +178,9 @@ struct uffdio_api {
 	 * UFFD_FEATURE_POLL polls upon page-fault if the feature is requested
 	 * instead of descheduling. This feature should only be enabled for
 	 * low-latency handlers and when CPUs are not overcomitted.
+	 *
+	 * UFFD_FEATURE_WRITE allows to use the write interface for copy and
+	 * zeroing of pages in addition to the ioctl interface.
 	 */
 #define UFFD_FEATURE_PAGEFAULT_FLAG_WP		(1<<0)
 #define UFFD_FEATURE_EVENT_FORK			(1<<1)
@@ -188,6 +192,7 @@ struct uffdio_api {
 #define UFFD_FEATURE_SIGBUS			(1<<7)
 #define UFFD_FEATURE_THREAD_ID			(1<<8)
 #define UFFD_FEATURE_POLL			(1<<9)
+#define UFFD_FEATURE_WRITE			(1<<10)
 	__u64 features;
 
 	__u64 ioctls;
@@ -264,4 +269,11 @@ struct uffdio_writeprotect {
 	__u64 mode;
 };
 
+/*
+ * Write modes to be use with UFFDIO_SET_WRITE_MODE ioctl.
+ */
+#define UFFDIO_WRITE_MODE_DONTWAKE		UFFDIO_COPY_MODE_DONTWAKE
+#define UFFDIO_WRITE_MODE_WP			UFFDIO_COPY_MODE_WP
+#define UFFDIO_WRITE_MODE_ZEROPAGE		((__u64)1<<2)
+
 #endif /* _LINUX_USERFAULTFD_H */
-- 
2.25.1

[RFC PATCH 11/13] fs/userfaultfd: complete write asynchronously

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

Userfaultfd writes can now be used for copy/zeroing. When using iouring
with userfaultfd, performing the copying/zeroing on the faulting thread
instead of the handler/iouring thread has several advantages:

(1) The data of the faulting thread will be available on the local
caches, which would make subsequent memory accesses faster.

(2) find_vma() would be able to use the vma-cache, which cannot be done
from a different process or io-uring kernel thread.

(3) The page is more likely to be allocated on the correct NUMA node.

To do so, userfaultfd work queue structs are extended to hold the
information that is required for the faulting thread to copy/zero. The
handler wakes one of the faulting threads to perform the copy/zero and
that thread wakes the other threads after the zero/copy is done.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c | 241 ++++++++++++++++++++++++++++++++++-------------
 1 file changed, 178 insertions(+), 63 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index eae6ac303951..5c22170544e3 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -105,58 +105,71 @@ struct userfaultfd_unmap_ctx {
 	struct list_head list;
 };
 
+struct userfaultfd_wake_info {
+	__u64 mode;
+	struct kiocb *iocb_callback;
+	struct iov_iter from;
+	unsigned long start;
+	unsigned long len;
+	bool copied;
+};
+
 struct userfaultfd_wait_queue {
 	struct uffd_msg msg;
 	wait_queue_entry_t wq;
 	struct userfaultfd_ctx *ctx;
+	struct userfaultfd_wake_info wake_info;
 	bool waken;
 };
 
-struct userfaultfd_wake_range {
-	unsigned long start;
-	unsigned long len;
-};
+
 
 static int userfaultfd_wake_function(wait_queue_entry_t *wq, unsigned mode,
 				     int wake_flags, void *key)
 {
-	struct userfaultfd_wake_range *range = key;
-	int ret;
+	struct userfaultfd_wake_info *wake_info = key;
 	struct userfaultfd_wait_queue *uwq;
 	unsigned long start, len;
+	int ret = 0;
 
 	uwq = container_of(wq, struct userfaultfd_wait_queue, wq);
-	ret = 0;
 	/* len == 0 means wake all */
-	start = range->start;
-	len = range->len;
+	start = wake_info->start;
+	len = wake_info->len;
 	if (len && (start > uwq->msg.arg.pagefault.address ||
 		    start + len <= uwq->msg.arg.pagefault.address))
 		goto out;
 
-	smp_store_mb(uwq->waken, true);
+	uwq->wake_info = *wake_info;
+
+	if (wake_info->iocb_callback)
+		wake_info->copied = true;
+
+	/* Ensure uwq->wake_info is visible to handle_userfault() before waken */
+	smp_wmb();
+
+	WRITE_ONCE(uwq->waken, true);
 
 	/*
 	 * The Program-Order guarantees provided by the scheduler
 	 * ensure uwq->waken is visible before the task is woken.
 	 */
 	ret = wake_up_state(wq->private, mode);
-	if (ret) {
-		/*
-		 * Wake only once, autoremove behavior.
-		 *
-		 * After the effect of list_del_init is visible to the other
-		 * CPUs, the waitqueue may disappear from under us, see the
-		 * !list_empty_careful() in handle_userfault().
-		 *
-		 * try_to_wake_up() has an implicit smp_mb(), and the
-		 * wq->private is read before calling the extern function
-		 * "wake_up_state" (which in turns calls try_to_wake_up).
-		 */
-		list_del_init(&wq->entry);
-	}
+
+	/*
+	 * Wake only once, autoremove behavior.
+	 *
+	 * After the effect of list_del_init is visible to the other
+	 * CPUs, the waitqueue may disappear from under us, see the
+	 * !list_empty_careful() in handle_userfault().
+	 *
+	 * try_to_wake_up() has an implicit smp_mb(), and the
+	 * wq->private is read before calling the extern function
+	 * "wake_up_state" (which in turns calls try_to_wake_up).
+	 */
+	list_del_init(&wq->entry);
 out:
-	return ret;
+	return ret || wake_info->copied;
 }
 
 /**
@@ -384,6 +397,9 @@ static bool userfaultfd_get_async_complete_locked(struct userfaultfd_ctx *ctx,
 	return true;
 }
 
+static __always_inline void wake_userfault(struct userfaultfd_ctx *ctx,
+					   struct userfaultfd_wake_info *wake_info);
+
 static bool userfaultfd_get_async_complete(struct userfaultfd_ctx *ctx,
 				struct kiocb **iocb, struct iov_iter *iter)
 {
@@ -414,6 +430,43 @@ static void userfaultfd_copy_async_msg(struct kiocb *iocb,
 	iter->kvec = NULL;
 }
 
+static void userfaultfd_complete_write(struct userfaultfd_ctx *ctx,
+					       struct userfaultfd_wait_queue *uwq)
+{
+	struct kiocb *iocb = uwq->wake_info.iocb_callback;
+	const struct kvec *kvec = uwq->wake_info.from.kvec;
+	bool zeropage = uwq->wake_info.mode & UFFDIO_WRITE_MODE_ZEROPAGE;
+	u64 mode = uwq->wake_info.mode &
+		(UFFDIO_WRITE_MODE_DONTWAKE | UFFDIO_WRITE_MODE_WP);
+	int r;
+
+	if (zeropage)
+		r = mfill_zeropage(ctx->mm, uwq->wake_info.start,
+			&uwq->wake_info.from, &ctx->mmap_changing);
+	else
+		r = mcopy_atomic(ctx->mm, uwq->wake_info.start,
+			&uwq->wake_info.from, &ctx->mmap_changing, mode);
+
+	/*
+	 * If we failed, do not wake the others, but if there was a partial
+	 * write, still wake others.
+	 */
+	if (r < 0)
+		goto out;
+
+	/* The callees should not do any copying */
+	uwq->wake_info.iocb_callback = NULL;
+	uwq->wake_info.from.kvec = NULL;
+	wake_userfault(ctx, &uwq->wake_info);
+out:
+	/*
+	 * Complete the operation only after waking the other threads as done
+	 * in the synchronous case.
+	 */
+	iocb->ki_complete(iocb, r, 0);
+	kfree(kvec);
+}
+
 /*
  * The locking rules involved in returning VM_FAULT_RETRY depending on
  * FAULT_FLAG_ALLOW_RETRY, FAULT_FLAG_RETRY_NOWAIT and
@@ -548,6 +601,7 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 			ctx->features);
 	uwq.ctx = ctx;
 	uwq.waken = false;
+	uwq.wake_info.iocb_callback = NULL;
 
 	blocking_state = userfaultfd_get_blocking_state(vmf->flags);
 
@@ -569,7 +623,11 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	 */
 	spin_lock(&wqh->lock);
 
-	__add_wait_queue(wqh, &uwq.wq);
+	/* Exclusive on the fault_wqh, not on the fault_pending_wqh */
+	if (async)
+		__add_wait_queue_exclusive(wqh, &uwq.wq);
+	else
+		__add_wait_queue(wqh, &uwq.wq);
 
 	/* Ensure it is queued before userspace is informed. */
 	smp_wmb();
@@ -612,6 +670,11 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 				cpu_relax();
 				cond_resched();
 			}
+			/*
+			 * Ensure writes from userfaultfd_wake_function into uwq
+			 * are visible.
+			 */
+			smp_rmb();
 		} else
 			schedule();
 	}
@@ -650,6 +713,10 @@ vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason)
 		local_irq_enable();
 	}
 
+	/* Complete copy/zero after the entry is no longer on the queue. */
+	if (uwq.wake_info.iocb_callback)
+		userfaultfd_complete_write(ctx, &uwq);
+
 	/*
 	 * ctx may go away after this if the userfault pseudo fd is
 	 * already released.
@@ -1004,7 +1071,7 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
 	struct mm_struct *mm = ctx->mm;
 	struct vm_area_struct *vma, *prev;
 	/* len == 0 means wake all */
-	struct userfaultfd_wake_range range = { .len = 0, };
+	struct userfaultfd_wake_info wake_info = { 0 };
 	unsigned long new_flags;
 
 	WRITE_ONCE(ctx->released, true);
@@ -1052,8 +1119,8 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
 	 * the fault_*wqh.
 	 */
 	spin_lock_irq(&ctx->fault_pending_wqh.lock);
-	__wake_up_locked_key(&ctx->fault_pending_wqh, TASK_NORMAL, &range);
-	__wake_up(&ctx->fault_wqh, TASK_NORMAL, 1, &range);
+	__wake_up_locked_key(&ctx->fault_pending_wqh, TASK_NORMAL, &wake_info);
+	__wake_up(&ctx->fault_wqh, TASK_NORMAL, 0, &wake_info);
 	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 
 	userfaultfd_cancel_async_reads(ctx);
@@ -1294,7 +1361,7 @@ static ssize_t userfaultfd_ctx_read(struct kiocb *iocb,
 			 * anyway.
 			 */
 			list_del(&uwq->wq.entry);
-			add_wait_queue(&ctx->fault_wqh, &uwq->wq);
+			add_wait_queue_exclusive(&ctx->fault_wqh, &uwq->wq);
 
 			write_seqcount_end(&ctx->refile_seq);
 
@@ -1459,20 +1526,20 @@ static ssize_t userfaultfd_read_iter(struct kiocb *iocb, struct iov_iter *to)
 }
 
 static void __wake_userfault(struct userfaultfd_ctx *ctx,
-			     struct userfaultfd_wake_range *range)
+			     struct userfaultfd_wake_info *wake_info)
 {
 	spin_lock_irq(&ctx->fault_pending_wqh.lock);
 	/* wake all in the range and autoremove */
 	if (waitqueue_active(&ctx->fault_pending_wqh))
 		__wake_up_locked_key(&ctx->fault_pending_wqh, TASK_NORMAL,
-				     range);
+				     wake_info);
 	if (waitqueue_active(&ctx->fault_wqh))
-		__wake_up(&ctx->fault_wqh, TASK_NORMAL, 1, range);
+		__wake_up(&ctx->fault_wqh, TASK_NORMAL, 0, wake_info);
 	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 }
 
 static __always_inline void wake_userfault(struct userfaultfd_ctx *ctx,
-					   struct userfaultfd_wake_range *range)
+					   struct userfaultfd_wake_info *wake_info)
 {
 	unsigned seq;
 	bool need_wakeup;
@@ -1499,7 +1566,7 @@ static __always_inline void wake_userfault(struct userfaultfd_ctx *ctx,
 		cond_resched();
 	} while (read_seqcount_retry(&ctx->refile_seq, seq));
 	if (need_wakeup)
-		__wake_userfault(ctx, range);
+		__wake_userfault(ctx, wake_info);
 }
 
 static __always_inline int validate_range(struct mm_struct *mm,
@@ -1524,14 +1591,57 @@ static __always_inline int validate_range(struct mm_struct *mm,
 	return 0;
 }
 
+static int userfaultfd_remote_mcopy(struct kiocb *iocb, __u64 dst,
+				    struct iov_iter *from, __u64 mode)
+{
+	struct file *file = iocb->ki_filp;
+	struct userfaultfd_ctx *ctx = file->private_data;
+	struct userfaultfd_wake_info wake_info = {
+		.iocb_callback = iocb,
+		.mode = mode,
+		.start = dst,
+		.len = iov_iter_count(from),
+		.copied = false,
+	};
+	int ret = -EAGAIN;
+
+	if (mode & UFFDIO_COPY_MODE_DONTWAKE)
+		goto out;
+
+	if (!iov_iter_is_bvec(from) && !iov_iter_is_kvec(from))
+		goto out;
+
+	/*
+	 * Check without a lock. If we are mistaken, the mcopy would be
+	 * performed locally.
+	 */
+	if (!waitqueue_active(&ctx->fault_wqh))
+		goto out;
+
+	dup_iter(&wake_info.from, from, GFP_KERNEL);
+
+	/* wake one in the range and autoremove */
+	__wake_up(&ctx->fault_wqh, TASK_NORMAL, 1, &wake_info);
+
+	if (!wake_info.copied) {
+		kfree(wake_info.from.kvec);
+		goto out;
+	}
+
+	ret = -EIOCBQUEUED;
+out:
+	return ret;
+}
+
 ssize_t userfaultfd_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
 	struct file *file = iocb->ki_filp;
-	struct userfaultfd_wake_range range;
+	struct userfaultfd_wake_info wake_info = { 0 };
 	struct userfaultfd_ctx *ctx = file->private_data;
 	size_t len = iov_iter_count(from);
 	__u64 dst = iocb->ki_pos & PAGE_MASK;
 	unsigned long mode = iocb->ki_pos & ~PAGE_MASK;
+	int no_wait = file->f_flags & O_NONBLOCK;
 	bool zeropage;
 	__s64 ret;
 
@@ -1563,25 +1673,30 @@ ssize_t userfaultfd_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	if (ret)
 		goto out;
 
-	if (mmget_not_zero(ctx->mm)) {
+	if (!mmget_not_zero(ctx->mm))
+		return -ESRCH;
+
+	ret = -EAGAIN;
+	if (no_wait && !is_sync_kiocb(iocb))
+		ret = userfaultfd_remote_mcopy(iocb, dst, from, mode);
+	if (ret == -EAGAIN) {
 		if (zeropage)
 			ret = mfill_zeropage(ctx->mm, dst, from,
 					     &ctx->mmap_changing);
 		else
 			ret = mcopy_atomic(ctx->mm, dst, from,
 					   &ctx->mmap_changing, mode);
-		mmput(ctx->mm);
-	} else {
-		return -ESRCH;
 	}
+	mmput(ctx->mm);
+
 	if (ret < 0)
 		goto out;
 
 	/* len == 0 would wake all */
-	range.len = ret;
+	wake_info.len = ret;
 	if (!(mode & UFFDIO_COPY_MODE_DONTWAKE)) {
-		range.start = dst;
-		wake_userfault(ctx, &range);
+		wake_info.start = dst;
+		wake_userfault(ctx, &wake_info);
 	}
 out:
 	return ret;
@@ -1916,7 +2031,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
 			 * permanently and it avoids userland to call
 			 * UFFDIO_WAKE explicitly.
 			 */
-			struct userfaultfd_wake_range range;
+			struct userfaultfd_wake_info range;
 			range.start = start;
 			range.len = vma_end - start;
 			wake_userfault(vma->vm_userfaultfd_ctx.ctx, &range);
@@ -1971,7 +2086,7 @@ static int userfaultfd_wake(struct userfaultfd_ctx *ctx,
 {
 	int ret;
 	struct uffdio_range uffdio_wake;
-	struct userfaultfd_wake_range range;
+	struct userfaultfd_wake_info wake_info = { 0 };
 	const void __user *buf = (void __user *)arg;
 
 	ret = -EFAULT;
@@ -1982,16 +2097,16 @@ static int userfaultfd_wake(struct userfaultfd_ctx *ctx,
 	if (ret)
 		goto out;
 
-	range.start = uffdio_wake.start;
-	range.len = uffdio_wake.len;
+	wake_info.start = uffdio_wake.start;
+	wake_info.len = uffdio_wake.len;
 
 	/*
 	 * len == 0 means wake all and we don't want to wake all here,
 	 * so check it again to be sure.
 	 */
-	VM_BUG_ON(!range.len);
+	VM_BUG_ON(!wake_info.len);
 
-	wake_userfault(ctx, &range);
+	wake_userfault(ctx, &wake_info);
 	ret = 0;
 
 out:
@@ -2004,7 +2119,7 @@ static int userfaultfd_copy(struct userfaultfd_ctx *ctx,
 	__s64 ret;
 	struct uffdio_copy uffdio_copy;
 	struct uffdio_copy __user *user_uffdio_copy;
-	struct userfaultfd_wake_range range;
+	struct userfaultfd_wake_info wake_info = { 0 };
 	struct iov_iter iter;
 	struct iovec iov;
 
@@ -2052,12 +2167,12 @@ static int userfaultfd_copy(struct userfaultfd_ctx *ctx,
 		goto out;
 	BUG_ON(!ret);
 	/* len == 0 would wake all */
-	range.len = ret;
+	wake_info.len = ret;
 	if (!(uffdio_copy.mode & UFFDIO_COPY_MODE_DONTWAKE)) {
-		range.start = uffdio_copy.dst;
-		wake_userfault(ctx, &range);
+		wake_info.start = uffdio_copy.dst;
+		wake_userfault(ctx, &wake_info);
 	}
-	ret = range.len == uffdio_copy.len ? 0 : -EAGAIN;
+	ret = wake_info.len == uffdio_copy.len ? 0 : -EAGAIN;
 out:
 	return ret;
 }
@@ -2068,7 +2183,7 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx,
 	__s64 ret;
 	struct uffdio_zeropage uffdio_zeropage;
 	struct uffdio_zeropage __user *user_uffdio_zeropage;
-	struct userfaultfd_wake_range range;
+	struct userfaultfd_wake_info wake_info = { 0 };
 	struct iov_iter iter;
 	struct iovec iov;
 
@@ -2108,12 +2223,12 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx,
 		goto out;
 	/* len == 0 would wake all */
 	BUG_ON(!ret);
-	range.len = ret;
+	wake_info.len = ret;
 	if (!(uffdio_zeropage.mode & UFFDIO_ZEROPAGE_MODE_DONTWAKE)) {
-		range.start = uffdio_zeropage.range.start;
-		wake_userfault(ctx, &range);
+		wake_info.start = uffdio_zeropage.range.start;
+		wake_userfault(ctx, &wake_info);
 	}
-	ret = range.len == uffdio_zeropage.range.len ? 0 : -EAGAIN;
+	ret = wake_info.len == uffdio_zeropage.range.len ? 0 : -EAGAIN;
 out:
 	return ret;
 }
@@ -2124,7 +2239,7 @@ static int userfaultfd_writeprotect(struct userfaultfd_ctx *ctx,
 	int ret;
 	struct uffdio_writeprotect uffdio_wp;
 	struct uffdio_writeprotect __user *user_uffdio_wp;
-	struct userfaultfd_wake_range range;
+	struct userfaultfd_wake_info wake_info = { 0 };
 	bool mode_wp, mode_dontwake;
 
 	if (READ_ONCE(ctx->mmap_changing))
@@ -2158,9 +2273,9 @@ static int userfaultfd_writeprotect(struct userfaultfd_ctx *ctx,
 		return ret;
 
 	if (!mode_wp && !mode_dontwake) {
-		range.start = uffdio_wp.range.start;
-		range.len = uffdio_wp.range.len;
-		wake_userfault(ctx, &range);
+		wake_info.start = uffdio_wp.range.start;
+		wake_info.len = uffdio_wp.range.len;
+		wake_userfault(ctx, &wake_info);
 	}
 	return ret;
 }
-- 
2.25.1

[RFC PATCH 12/13] fs/userfaultfd: kmem-cache for wait-queue objects

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

Allocating work-queue objects on the stack has usually negative
performance side-effects. First, it is hard to ensure alignment to
cache-lines without increasing the stack size. Second, it might cause
false sharing. Third, it is more likely to encounter TLB misses as
objects are more likely reside on different pages.

Allocate userfaultfd wait-queue objects on the heap using kmem-cache for
better performance.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 fs/userfaultfd.c | 60 +++++++++++++++++++++++++++++-------------------
 1 file changed, 36 insertions(+), 24 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 5c22170544e3..224b595ec758 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -32,6 +32,7 @@
 int sysctl_unprivileged_userfaultfd __read_mostly = 1;
 
 static struct kmem_cache *userfaultfd_ctx_cachep __read_mostly;
+static struct kmem_cache *userfaultfd_wait_queue_cachep __read_mostly;
 
 enum userfaultfd_state {
 	UFFD_STATE_WAIT_API,
@@ -904,14 +905,15 @@ int dup_userfaultfd(struct vm_area_struct *vma, struct list_head *fcs)
 static void dup_fctx(struct userfaultfd_fork_ctx *fctx)
 {
 	struct userfaultfd_ctx *ctx = fctx->orig;
-	struct userfaultfd_wait_queue ewq;
+	struct userfaultfd_wait_queue *ewq = kmem_cache_zalloc(userfaultfd_wait_queue_cachep, GFP_KERNEL);
 
-	msg_init(&ewq.msg);
+	msg_init(&ewq->msg);
 
-	ewq.msg.event = UFFD_EVENT_FORK;
-	ewq.msg.arg.reserved.reserved1 = (unsigned long)fctx->new;
+	ewq->msg.event = UFFD_EVENT_FORK;
+	ewq->msg.arg.reserved.reserved1 = (unsigned long)fctx->new;
 
-	userfaultfd_event_wait_completion(ctx, &ewq);
+	userfaultfd_event_wait_completion(ctx, ewq);
+	kmem_cache_free(userfaultfd_wait_queue_cachep, ewq);
 }
 
 void dup_userfaultfd_complete(struct list_head *fcs)
@@ -951,7 +953,7 @@ void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx *vm_ctx,
 				 unsigned long len)
 {
 	struct userfaultfd_ctx *ctx = vm_ctx->ctx;
-	struct userfaultfd_wait_queue ewq;
+	struct userfaultfd_wait_queue *ewq = kmem_cache_zalloc(userfaultfd_wait_queue_cachep, GFP_KERNEL);
 
 	if (!ctx)
 		return;
@@ -961,14 +963,15 @@ void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx *vm_ctx,
 		return;
 	}
 
-	msg_init(&ewq.msg);
+	msg_init(&ewq->msg);
 
-	ewq.msg.event = UFFD_EVENT_REMAP;
-	ewq.msg.arg.remap.from = from;
-	ewq.msg.arg.remap.to = to;
-	ewq.msg.arg.remap.len = len;
+	ewq->msg.event = UFFD_EVENT_REMAP;
+	ewq->msg.arg.remap.from = from;
+	ewq->msg.arg.remap.to = to;
+	ewq->msg.arg.remap.len = len;
 
-	userfaultfd_event_wait_completion(ctx, &ewq);
+	userfaultfd_event_wait_completion(ctx, ewq);
+	kmem_cache_free(userfaultfd_wait_queue_cachep, ewq);
 }
 
 bool userfaultfd_remove(struct vm_area_struct *vma,
@@ -976,23 +979,25 @@ bool userfaultfd_remove(struct vm_area_struct *vma,
 {
 	struct mm_struct *mm = vma->vm_mm;
 	struct userfaultfd_ctx *ctx;
-	struct userfaultfd_wait_queue ewq;
+	struct userfaultfd_wait_queue *ewq;
 
 	ctx = vma->vm_userfaultfd_ctx.ctx;
 	if (!ctx || !(ctx->features & UFFD_FEATURE_EVENT_REMOVE))
 		return true;
 
+	ewq = kmem_cache_zalloc(userfaultfd_wait_queue_cachep, GFP_KERNEL);
 	userfaultfd_ctx_get(ctx);
 	WRITE_ONCE(ctx->mmap_changing, true);
 	mmap_read_unlock(mm);
 
-	msg_init(&ewq.msg);
+	msg_init(&ewq->msg);
 
-	ewq.msg.event = UFFD_EVENT_REMOVE;
-	ewq.msg.arg.remove.start = start;
-	ewq.msg.arg.remove.end = end;
+	ewq->msg.event = UFFD_EVENT_REMOVE;
+	ewq->msg.arg.remove.start = start;
+	ewq->msg.arg.remove.end = end;
 
-	userfaultfd_event_wait_completion(ctx, &ewq);
+	userfaultfd_event_wait_completion(ctx, ewq);
+	kmem_cache_free(userfaultfd_wait_queue_cachep, ewq);
 
 	return false;
 }
@@ -1040,20 +1045,21 @@ int userfaultfd_unmap_prep(struct vm_area_struct *vma,
 void userfaultfd_unmap_complete(struct mm_struct *mm, struct list_head *uf)
 {
 	struct userfaultfd_unmap_ctx *ctx, *n;
-	struct userfaultfd_wait_queue ewq;
+	struct userfaultfd_wait_queue *ewq = kmem_cache_zalloc(userfaultfd_wait_queue_cachep, GFP_KERNEL);
 
 	list_for_each_entry_safe(ctx, n, uf, list) {
-		msg_init(&ewq.msg);
+		msg_init(&ewq->msg);
 
-		ewq.msg.event = UFFD_EVENT_UNMAP;
-		ewq.msg.arg.remove.start = ctx->start;
-		ewq.msg.arg.remove.end = ctx->end;
+		ewq->msg.event = UFFD_EVENT_UNMAP;
+		ewq->msg.arg.remove.start = ctx->start;
+		ewq->msg.arg.remove.end = ctx->end;
 
-		userfaultfd_event_wait_completion(ctx->ctx, &ewq);
+		userfaultfd_event_wait_completion(ctx->ctx, ewq);
 
 		list_del(&ctx->list);
 		kfree(ctx);
 	}
+	kmem_cache_free(userfaultfd_wait_queue_cachep, ewq);
 }
 
 static void userfaultfd_cancel_async_reads(struct userfaultfd_ctx *ctx)
@@ -2471,6 +2477,12 @@ static int __init userfaultfd_init(void)
 						0,
 						SLAB_HWCACHE_ALIGN|SLAB_PANIC,
 						init_once_userfaultfd_ctx);
+
+	userfaultfd_wait_queue_cachep = kmem_cache_create("userfaultfd_wait_queue_cache",
+						sizeof(struct userfaultfd_wait_queue),
+						0,
+						SLAB_HWCACHE_ALIGN|SLAB_PANIC,
+						NULL);
 	return 0;
 }
 __initcall(userfaultfd_init);
-- 
2.25.1

[RFC PATCH 13/13] selftests/vm/userfaultfd: iouring and polling tests

[Nadav Amit]

From: Nadav Amit <namit@vmware.com>

Add tests to check the use of userfaultfd with iouring, "write"
interface of userfaultfd and with the "poll" feature of userfaultfd.

Enabling the tests is done through new test "modifiers": "poll", "write"
"iouring" that are added to the test name after colon. The "shmem" test
does not work with "iouring" test. The signal test does not appear to be
suitable for iouring as it might leave the ring in dubious state.

Introduce a uffd_base_ops struct that holds functions for
read/copy/zero/etc operations using ioctls or alternatively writes or
iouring. Adapting the tests for iouring is slightly complicated, as
operations on iouring must be synchronized. Access to the iouring is
therefore protected by a mutex. Reads are performed to several
preallocated buffers and are protected by another mutex. Whenever the
iouring completion queue is polled, the caller must take care of any
read or write that were initiated, even if it waits for another event.

Each thread holds a local request ID which it uses to issue its own
non-read requests, under the assumption that only one request will be on
the fly at any given moment and that the issuing thread will wait for
its completion.

This change creates a dependency of the userfaultfd tests on iouring.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: io-uring@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Nadav Amit <namit@vmware.com>
---
 tools/testing/selftests/vm/Makefile      |   2 +-
 tools/testing/selftests/vm/userfaultfd.c | 824 +++++++++++++++++++++--
 2 files changed, 757 insertions(+), 69 deletions(-)

diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index 30873b19d04b..4f88123530c5 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -127,6 +127,6 @@ warn_32bit_failure:
 endif
 endif
 
-$(OUTPUT)/userfaultfd: LDLIBS += -lpthread
+$(OUTPUT)/userfaultfd: LDLIBS += -lpthread -luring
 
 $(OUTPUT)/mlock-random-test: LDLIBS += -lcap
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index f7e6cf43db71..9077167b3e77 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -55,6 +55,7 @@
 #include <setjmp.h>
 #include <stdbool.h>
 #include <assert.h>
+#include <liburing.h>
 
 #include "../kselftest.h"
 
@@ -73,6 +74,13 @@ static int bounces;
 #define TEST_SHMEM	3
 static int test_type;
 
+#define MOD_IOURING	(0)
+#define MOD_WRITE	(1)
+#define MOD_POLL	(2)
+#define N_MODIFIERS	(MOD_POLL+1)
+static bool test_mods[N_MODIFIERS];
+const char *mod_strs[N_MODIFIERS] = {"iouring", "write", "poll"};
+
 /* exercise the test_uffdio_*_eexist every ALARM_INTERVAL_SECS */
 #define ALARM_INTERVAL_SECS 10
 static volatile bool test_uffdio_copy_eexist = true;
@@ -111,6 +119,12 @@ struct uffd_stats {
 				 ~(unsigned long)(sizeof(unsigned long long) \
 						  -  1)))
 
+/*
+ * async indication that no result was provided. Must be different than any
+ * existing error code.
+ */
+#define RES_NOT_DONE		(-5555)
+
 const char *examples =
     "# Run anonymous memory test on 100MiB region with 99999 bounces:\n"
     "./userfaultfd anon 100 99999\n\n"
@@ -122,7 +136,10 @@ const char *examples =
     "./userfaultfd hugetlb_shared 256 50 /dev/hugepages/hugefile\n\n"
     "# 10MiB-~6GiB 999 bounces anonymous test, "
     "continue forever unless an error triggers\n"
-    "while ./userfaultfd anon $[RANDOM % 6000 + 10] 999; do true; done\n\n";
+    "while ./userfaultfd anon $[RANDOM % 6000 + 10] 999; do true; done\n"
+    "# Run anonymous memory test on 100MiB region with 99 bounces, "
+    "polling on faults with iouring interface\n"
+    "./userfaultfd anon:iouring:poll 100 99\n\n";
 
 static void usage(void)
 {
@@ -288,6 +305,13 @@ struct uffd_test_ops {
 	void (*alias_mapping)(__u64 *start, size_t len, unsigned long offset);
 };
 
+struct uffd_base_ops {
+	bool (*poll_msg)(int ufd, unsigned long cpu);
+	int (*read_msg)(int ufd, struct uffd_msg *msg);
+	int (*copy)(int ufd, struct uffdio_copy *uffdio_copy);
+	int (*zero)(int ufd, struct uffdio_zeropage *zeropage);
+};
+
 #define SHMEM_EXPECTED_IOCTLS		((1 << _UFFDIO_WAKE) | \
 					 (1 << _UFFDIO_COPY) | \
 					 (1 << _UFFDIO_ZEROPAGE))
@@ -465,13 +489,417 @@ static void *locking_thread(void *arg)
 	return NULL;
 }
 
+__thread int local_req_id;
+
+#define READ_QUEUE_DEPTH	(16)
+
+struct uffd_msg *iouring_read_msgs;
+
+static struct io_uring ring;
+
+/* ring_mutex - protects the iouring */
+pthread_mutex_t ring_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+/* async_mutex - protects iouring_read_msgs */
+pthread_mutex_t async_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static volatile ssize_t *ring_results;
+
+enum {
+	BUF_IDX_MSG,
+	BUF_IDX_ZERO,
+	BUF_IDX_SRC,
+	BUF_IDX_ALIAS,
+};
+
+static void init_iouring_buffers(void)
+{
+	struct iovec iov[4] = { 0 };
+	int r;
+
+	io_uring_unregister_buffers(&ring);
+
+	iov[BUF_IDX_MSG].iov_base = iouring_read_msgs;
+	iov[BUF_IDX_MSG].iov_len = sizeof(struct uffd_msg) * READ_QUEUE_DEPTH;
+
+	iov[BUF_IDX_ZERO].iov_base = zeropage;
+	iov[BUF_IDX_ZERO].iov_len = page_size;
+
+	iov[BUF_IDX_SRC].iov_base = area_src;
+	iov[BUF_IDX_SRC].iov_len = nr_pages * page_size;
+
+	if (area_src_alias) {
+		iov[BUF_IDX_ALIAS].iov_base = area_src_alias;
+		iov[BUF_IDX_ALIAS].iov_len = nr_pages * page_size;
+	}
+
+	while ((r = io_uring_register_buffers(&ring, iov, (area_src_alias ? 4 : 3)))) {
+		if (r != -EINTR) {
+			fprintf(stderr, "Error registering buffers: %s\n", strerror(-r));
+			exit(1);
+		}
+	}
+}
+
+static bool ring_initialized;
+
+static void uffd_enqueue_async_read(int ufd, int req_id);
+
+static void init_iouring(void)
+{
+	struct io_uring_params io_uring_params = { 0 };
+	int n_msgs = nr_cpus * 3 + READ_QUEUE_DEPTH;
+	int n_private_msgs = nr_cpus * 3;
+	int fds[1] = { uffd };
+	int r, i;
+
+	if (!test_mods[MOD_IOURING])
+		return;
+
+	if (pthread_mutex_trylock(&ring_mutex)) {
+		fprintf(stderr, "ring_mutex taken during init\n");
+		exit(1);
+	}
+	if (pthread_mutex_trylock(&async_mutex)) {
+		fprintf(stderr, "ring_mutex taken during init\n");
+		exit(1);
+	}
+
+	if (ring_initialized)
+		io_uring_queue_exit(&ring);
+
+	ring_initialized = true;
+
+	io_uring_params.flags |= IORING_SETUP_SQPOLL;
+
+	/*
+	 * The ring size must allow all the possible reads to be enqueued and
+	 * at least one local request.
+	 */
+	r = io_uring_queue_init_params(n_msgs, &ring, &io_uring_params);
+	if (r) {
+		perror("io_uring_queue_init_params");
+		exit(-1);
+	}
+
+	if (!iouring_read_msgs) {
+		iouring_read_msgs = calloc(READ_QUEUE_DEPTH, sizeof(struct uffd_msg));
+		if (!iouring_read_msgs) {
+			fprintf(stderr, "malloc uffd_msg error\n");
+			exit(1);
+		}
+	}
+
+	if (!ring_results) {
+		ring_results = calloc(READ_QUEUE_DEPTH + n_private_msgs, sizeof(*ring_results));
+		if (!ring_results) {
+			fprintf(stderr, "calloc ring_results error\n");
+			exit(1);
+		}
+	}
+
+	for (i = 0; i < n_msgs; i++)
+		ring_results[i] = RES_NOT_DONE;
+
+	init_iouring_buffers();
+
+	/* Retry on EINTR */
+	do {
+		r = io_uring_register_files(&ring, fds, 1);
+	} while (r == -EINTR);
+	if (r) {
+		fprintf(stderr, "io_uring_register_files: %s\n", strerror(-r));
+		exit(-1);
+	}
+
+	pthread_mutex_unlock(&async_mutex);
+	pthread_mutex_unlock(&ring_mutex);
+
+	for (i = 0; i < READ_QUEUE_DEPTH; i++)
+		uffd_enqueue_async_read(uffd, i);
+}
+
+static int uffd_copy_ioctl(int ufd, struct uffdio_copy *uffdio_copy)
+{
+	return ioctl(ufd, UFFDIO_COPY, uffdio_copy);
+}
+
+static int uffd_copy_write(int ufd, struct uffdio_copy *uffdio_copy)
+{
+	off_t mode = uffdio_copy->mode & UFFDIO_COPY_MODE_WP;
+	int ret;
+
+	ret = pwrite(ufd, (void *)uffdio_copy->src, page_size, uffdio_copy->dst|mode);
+
+	if (ret == -1) {
+		uffdio_copy->copy = -errno;
+		return ret;
+	}
+
+	if (ret >= 0 && ret != uffdio_copy->len) {
+		fprintf(stderr, "unexpected partial write\n");
+		exit(1);
+	}
+
+	uffdio_copy->copy = uffdio_copy->len;
+	return 0;
+}
+
+static int uffd_zeropage_write(int ufd, struct uffdio_zeropage *uffdio_zeropage)
+{
+	int ret;
+
+	ret = pwrite(ufd, zeropage, uffdio_zeropage->range.len,
+			uffdio_zeropage->range.start|UFFDIO_WRITE_MODE_ZEROPAGE);
+
+	if (ret == -1) {
+		uffdio_zeropage->zeropage = -errno;
+		return ret;
+	}
+
+	if (ret >= 0 && ret != uffdio_zeropage->range.len) {
+		fprintf(stderr, "unexpected partial write\n");
+		exit(1);
+	}
+
+	uffdio_zeropage->zeropage = uffdio_zeropage->range.len;
+	return 0;
+}
+
+static int uffd_iouring_read_cqes(void)
+{
+	struct io_uring_cqe *cqe;
+	int ret;
+
+	ret = io_uring_peek_cqe(&ring, &cqe);
+
+	if (ret == -EAGAIN)
+		return ret;
+
+	if (ret != 0) {
+		fprintf(stderr, "io_uring_peek_cqe: %s\n", strerror(-ret));
+		exit(1);
+	}
+
+	ring_results[cqe->user_data] = cqe->res;
+	io_uring_cqe_seen(&ring, cqe);
+
+	return 0;
+}
+
+static int uffd_iouring_search_done(int req_num_start, int req_num_end,
+				    int *idx, ssize_t *res)
+{
+	int ret = -EAGAIN;
+	int i;
+
+	for (i = req_num_start; i < req_num_end; i++) {
+		if (ring_results[i] == RES_NOT_DONE)
+			continue;
+
+		if (idx)
+			*idx = i;
+
+		if (res)
+			*res = ring_results[i];
+
+		ring_results[i] = RES_NOT_DONE;
+		ret = 0;
+		break;
+	}
+
+	return ret;
+}
+
+/*
+ * Checks if there is any result that is ready between req_num_start and
+ * req_num_end. Returns the index and the real result.
+ */
+static int uffd_iouring_get_result(int req_num_start, int req_num_end, bool poll,
+			      int *idx, ssize_t *res, bool exclusive)
+{
+	const struct timespec zerotime = { 0 };
+	int ret = -EAGAIN;
+
+	/*
+	 * use nanosleep to create a cancellation point, which does not
+	 * exist when io-uring is used.
+	 */
+	nanosleep(&zerotime, NULL);
+
+	do {
+		if (exclusive || !pthread_mutex_trylock(&async_mutex)) {
+			ret = uffd_iouring_search_done(req_num_start,
+					req_num_end, idx, res);
+			if (!exclusive)
+				pthread_mutex_unlock(&async_mutex);
+		}
+
+		if (!pthread_mutex_trylock(&ring_mutex)) {
+			uffd_iouring_read_cqes();
+			pthread_mutex_unlock(&ring_mutex);
+		}
+	} while (poll && ret == -EAGAIN);
+
+	return ret;
+}
+
+static int uffd_iouring_get_result_single(int req_num, bool poll, int *idx,
+		ssize_t *res)
+{
+	return uffd_iouring_get_result(req_num, req_num+1, poll, idx, res, true);
+}
+
+/*
+ * uffd_iouring_submit() - submit into the io-uring while handling possible
+ * failures.
+ */
+static void uffd_iouring_submit(struct io_uring_sqe *sqe, int req_id)
+{
+	struct io_uring_sqe *ring_sqe;
+	int ret;
+
+	do {
+		ret = -EAGAIN;
+
+		pthread_mutex_lock(&ring_mutex);
+		ring_sqe = io_uring_get_sqe(&ring);
+		if (!ring_sqe)
+			goto retry;
+
+		*ring_sqe = *sqe;
+		ring_sqe->user_data = req_id;
+
+		ret = io_uring_submit(&ring);
+		if (ret < 0 && ret != -EAGAIN) {
+			fprintf(stderr, "io_uring_submit: %s\n", strerror(-ret));
+			exit(1);
+		}
+
+retry:
+		/*
+		 * We do not have to read the cqes on success, but it is
+		 * cleaner this way.
+		 */
+		uffd_iouring_read_cqes();
+		pthread_mutex_unlock(&ring_mutex);
+	} while (ret <= 0);
+}
+
+static ssize_t uffd_iouring_submit_and_wait(struct io_uring_sqe *sqe)
+{
+	do {
+		ssize_t res;
+
+		if (local_req_id < READ_QUEUE_DEPTH) {
+			fprintf(stderr, "local_req_id < READ_QUEUE_DEPTH\n");
+			exit(1);
+		}
+
+		uffd_iouring_submit(sqe, local_req_id);
+
+		if (!uffd_iouring_get_result_single(local_req_id, true, NULL, &res))
+			return res;
+
+		pthread_yield();
+	} while (true);
+}
+
+/* uffd_enqueue_async_read must be called with ring_mutex taken */
+static void uffd_enqueue_async_read(int ufd, int req_id)
+{
+	struct io_uring_sqe sqe;
+
+	io_uring_prep_read_fixed(&sqe, 0, &iouring_read_msgs[req_id],
+			sizeof(struct uffd_msg), 0, 0);
+	sqe.flags |= IOSQE_FIXED_FILE;
+
+	uffd_iouring_submit(&sqe, req_id);
+}
+
+static int iouring_copy(int ufd, struct uffdio_copy *uffdio_copy)
+{
+	off_t mode = uffdio_copy->mode & UFFDIO_COPY_MODE_WP;
+	const char *src = (const char *)uffdio_copy->src;
+	struct io_uring_sqe sqe;
+	int buf_idx;
+	ssize_t res;
+
+	/* Find the index of the area */
+	if (src >= area_src && src < area_src + nr_pages * page_size)
+		buf_idx = BUF_IDX_SRC;
+	else if (src >= area_src_alias && src < area_src_alias + nr_pages * page_size)
+		buf_idx = BUF_IDX_ALIAS;
+	else {
+		fprintf(stderr, "could not find area\n");
+		exit(1);
+	}
+
+	io_uring_prep_write_fixed(&sqe, 0, src, uffdio_copy->len,
+			uffdio_copy->dst|mode, buf_idx);
+	sqe.flags |= IOSQE_FIXED_FILE;
+
+	res = uffd_iouring_submit_and_wait(&sqe);
+
+	/* Put res as if it was returned by the ioctl */
+	uffdio_copy->copy = res;
+
+	if (res >= 0 && res != uffdio_copy->len) {
+		fprintf(stderr, "uffd_iouring_copy got wrong size: %ld instead of %lld\n",
+				res, uffdio_copy->len);
+		exit(1);
+	}
+
+	return res < 0 ? res : 0;
+}
+
+static bool uffd_poll_msg_iouring(int ufd, unsigned long cpu)
+{
+	char tmp_chr;
+	int ret = 0;
+
+	ret = read(pipefd[cpu*2], &tmp_chr, 1);
+
+	return ret != 1;
+}
+
+static int uffd_read_msg_iouring(int ufd, struct uffd_msg *msg)
+{
+	ssize_t cqe_res;
+	int ret, idx;
+
+	ret = uffd_iouring_get_result(0, READ_QUEUE_DEPTH, false, &idx, &cqe_res, false);
+	if (ret == -EAGAIN)
+		return ret;
+
+	if (cqe_res == sizeof(struct uffd_msg)) {
+		*msg = iouring_read_msgs[idx];
+		ret = 0;
+	} else if (cqe_res < 0)
+		ret = cqe_res;
+	else {
+		fprintf(stderr, "cqe->res wrong size: %ld user_data: %d\n", cqe_res, idx);
+		exit(1);
+	}
+
+	/* Initialize for easier debugging of races, not really needed */
+	memset(&iouring_read_msgs[idx], 0, sizeof(iouring_read_msgs[idx]));
+
+	/* If we failed, we still insist on queueing it for later reads */
+	uffd_enqueue_async_read(ufd, idx);
+
+	return ret;
+}
+
+static const struct uffd_base_ops *uffd_base_ops;
+
 static void retry_copy_page(int ufd, struct uffdio_copy *uffdio_copy,
 			    unsigned long offset)
 {
 	uffd_test_ops->alias_mapping(&uffdio_copy->dst,
 				     uffdio_copy->len,
 				     offset);
-	if (ioctl(ufd, UFFDIO_COPY, uffdio_copy)) {
+	if (uffd_base_ops->copy(ufd, uffdio_copy)) {
 		/* real retval in ufdio_copy.copy */
 		if (uffdio_copy->copy != -EEXIST) {
 			fprintf(stderr, "UFFDIO_COPY retry error %Ld\n",
@@ -511,15 +939,20 @@ static int __copy_page(int ufd, unsigned long offset, bool retry)
 		uffdio_copy.mode = UFFDIO_COPY_MODE_WP;
 	else
 		uffdio_copy.mode = 0;
+retry:
 	uffdio_copy.copy = 0;
-	if (ioctl(ufd, UFFDIO_COPY, &uffdio_copy)) {
+	if (uffd_base_ops->copy(ufd, &uffdio_copy)) {
 		/* real retval in ufdio_copy.copy */
-		if (uffdio_copy.copy != -EEXIST) {
+		switch (uffdio_copy.copy) {
+		case -EEXIST:
+			wake_range(ufd, uffdio_copy.dst, page_size);
+			break;
+		case -EAGAIN:
+			goto retry;
+		default:
 			fprintf(stderr, "UFFDIO_COPY error %Ld\n",
-				uffdio_copy.copy);
-			exit(1);
+				uffdio_copy.copy), exit(1);
 		}
-		wake_range(ufd, uffdio_copy.dst, page_size);
 	} else if (uffdio_copy.copy != page_size) {
 		fprintf(stderr, "UFFDIO_COPY unexpected copy %Ld\n",
 			uffdio_copy.copy); exit(1);
@@ -561,6 +994,42 @@ static int uffd_read_msg(int ufd, struct uffd_msg *msg)
 	return 0;
 }
 
+/* Returns false if a break is needed */
+static bool uffd_poll_msg(int ufd, unsigned long cpu)
+{
+	struct pollfd pollfd[2];
+	char tmp_chr;
+	int ret;
+
+	pollfd[0].fd = ufd;
+	pollfd[0].events = POLLIN;
+	pollfd[1].fd = pipefd[cpu*2];
+	pollfd[1].events = POLLIN;
+
+	ret = poll(pollfd, 2, -1);
+	if (!ret) {
+		fprintf(stderr, "poll error %d\n", ret);
+		exit(1);
+	}
+	if (ret < 0) {
+		perror("poll");
+		exit(1);
+	}
+	if (pollfd[1].revents & POLLIN) {
+		if (read(pollfd[1].fd, &tmp_chr, 1) != 1) {
+			fprintf(stderr, "read pipefd error\n");
+			exit(1);
+		}
+		return false;
+	}
+	if (!(pollfd[0].revents & POLLIN)) {
+		fprintf(stderr, "pollfd[0].revents %d\n", pollfd[0].revents);
+		exit(1);
+	}
+
+	return true;
+}
+
 static void uffd_handle_page_fault(struct uffd_msg *msg,
 				   struct uffd_stats *stats)
 {
@@ -590,44 +1059,27 @@ static void uffd_handle_page_fault(struct uffd_msg *msg,
 	}
 }
 
+struct thread_arg {
+	struct uffd_stats *stats;
+	unsigned long cpu;
+	int req_id;
+};
+
 static void *uffd_poll_thread(void *arg)
 {
-	struct uffd_stats *stats = (struct uffd_stats *)arg;
+	struct thread_arg *thread_arg = (struct thread_arg *)arg;
+	struct uffd_stats *stats = thread_arg->stats;
 	unsigned long cpu = stats->cpu;
-	struct pollfd pollfd[2];
 	struct uffd_msg msg;
 	struct uffdio_register uffd_reg;
-	int ret;
-	char tmp_chr;
 
-	pollfd[0].fd = uffd;
-	pollfd[0].events = POLLIN;
-	pollfd[1].fd = pipefd[cpu*2];
-	pollfd[1].events = POLLIN;
+	local_req_id = thread_arg->req_id;
 
 	for (;;) {
-		ret = poll(pollfd, 2, -1);
-		if (!ret) {
-			fprintf(stderr, "poll error %d\n", ret);
-			exit(1);
-		}
-		if (ret < 0) {
-			perror("poll");
-			exit(1);
-		}
-		if (pollfd[1].revents & POLLIN) {
-			if (read(pollfd[1].fd, &tmp_chr, 1) != 1) {
-				fprintf(stderr, "read pipefd error\n");
-				exit(1);
-			}
+		if (!uffd_base_ops->poll_msg(uffd, cpu))
 			break;
-		}
-		if (!(pollfd[0].revents & POLLIN)) {
-			fprintf(stderr, "pollfd[0].revents %d\n",
-				pollfd[0].revents);
-			exit(1);
-		}
-		if (uffd_read_msg(uffd, &msg))
+
+		if (uffd_base_ops->read_msg(uffd, &msg))
 			continue;
 		switch (msg.event) {
 		default:
@@ -640,7 +1092,16 @@ static void *uffd_poll_thread(void *arg)
 		case UFFD_EVENT_FORK:
 			close(uffd);
 			uffd = msg.arg.fork.ufd;
-			pollfd[0].fd = uffd;
+			if (test_mods[MOD_IOURING]) {
+				static ssize_t r;
+
+				r = io_uring_register_files_update(&ring, 0, &uffd, 1);
+				if (r < 0) {
+					fprintf(stderr, "io_uring_register_files_update: %s\n",
+							strerror(-r));
+					exit(1);
+				}
+			}
 			break;
 		case UFFD_EVENT_REMOVE:
 			uffd_reg.range.start = msg.arg.remove.start;
@@ -664,14 +1125,25 @@ pthread_mutex_t uffd_read_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 static void *uffd_read_thread(void *arg)
 {
-	struct uffd_stats *stats = (struct uffd_stats *)arg;
+	struct thread_arg *thread_arg = (struct thread_arg *)arg;
+	struct uffd_stats *stats = thread_arg->stats;
 	struct uffd_msg msg;
 
+	local_req_id = thread_arg->req_id;
+
 	pthread_mutex_unlock(&uffd_read_mutex);
 	/* from here cancellation is ok */
 
 	for (;;) {
-		if (uffd_read_msg(uffd, &msg))
+		const struct timespec zerotime = { 0 };
+
+		/*
+		 * use nanosleep to create a cancellation point, which does not
+		 * exist when io-uring is used.
+		 */
+		nanosleep(&zerotime, NULL);
+
+		if (uffd_base_ops->read_msg(uffd, &msg))
 			continue;
 		uffd_handle_page_fault(&msg, stats);
 	}
@@ -681,9 +1153,12 @@ static void *uffd_read_thread(void *arg)
 
 static void *background_thread(void *arg)
 {
-	unsigned long cpu = (unsigned long) arg;
+	struct thread_arg *thread_arg = (struct thread_arg *)arg;
+	unsigned long cpu = thread_arg->cpu;
 	unsigned long page_nr, start_nr, mid_nr, end_nr;
 
+	local_req_id = thread_arg->req_id;
+
 	start_nr = cpu * nr_pages_per_cpu;
 	end_nr = (cpu+1) * nr_pages_per_cpu;
 	mid_nr = (start_nr + end_nr) / 2;
@@ -717,6 +1192,10 @@ static int stress(struct uffd_stats *uffd_stats)
 	pthread_t locking_threads[nr_cpus];
 	pthread_t uffd_threads[nr_cpus];
 	pthread_t background_threads[nr_cpus];
+	struct thread_arg read_thread_args[nr_cpus];
+	struct thread_arg poll_thread_args[nr_cpus];
+	struct thread_arg background_thread_args[nr_cpus];
+	int req_id = READ_QUEUE_DEPTH;
 
 	finished = 0;
 	for (cpu = 0; cpu < nr_cpus; cpu++) {
@@ -724,19 +1203,28 @@ static int stress(struct uffd_stats *uffd_stats)
 				   locking_thread, (void *)cpu))
 			return 1;
 		if (bounces & BOUNCE_POLL) {
+			poll_thread_args[cpu].req_id = req_id++;
+			poll_thread_args[cpu].stats = &uffd_stats[cpu];
+			poll_thread_args[cpu].cpu = cpu;
+
 			if (pthread_create(&uffd_threads[cpu], &attr,
 					   uffd_poll_thread,
-					   (void *)&uffd_stats[cpu]))
+					   (void *)&poll_thread_args[cpu]))
 				return 1;
 		} else {
+			read_thread_args[cpu].req_id = req_id++;
+			read_thread_args[cpu].stats = &uffd_stats[cpu];
+			read_thread_args[cpu].cpu = cpu;
 			if (pthread_create(&uffd_threads[cpu], &attr,
 					   uffd_read_thread,
-					   (void *)&uffd_stats[cpu]))
+					   (void *)&read_thread_args[cpu]))
 				return 1;
 			pthread_mutex_lock(&uffd_read_mutex);
 		}
+		background_thread_args[cpu].req_id = req_id++;
+		background_thread_args[cpu].cpu = cpu;
 		if (pthread_create(&background_threads[cpu], &attr,
-				   background_thread, (void *)cpu))
+				   background_thread, (void *)&background_thread_args[cpu]))
 			return 1;
 	}
 	for (cpu = 0; cpu < nr_cpus; cpu++)
@@ -786,6 +1274,12 @@ static int userfaultfd_open(int features)
 {
 	struct uffdio_api uffdio_api;
 
+	if (test_mods[MOD_POLL])
+		features |= UFFD_FEATURE_POLL;
+
+	if (test_iouring || test_write)
+		features |= UFFD_FEATURE_WRITE;
+
 	uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
 	if (uffd < 0) {
 		fprintf(stderr,
@@ -805,6 +1299,8 @@ static int userfaultfd_open(int features)
 		return 1;
 	}
 
+	init_iouring();
+
 	return 0;
 }
 
@@ -954,6 +1450,34 @@ static int faulting_process(int signal_test)
 	return 0;
 }
 
+static int uffd_zeropage_ioctl(int ufd, struct uffdio_zeropage *uffdio_zeropage)
+{
+	return ioctl(ufd, UFFDIO_ZEROPAGE, uffdio_zeropage);
+}
+
+static int uffd_zeropage_iouring(int ufd, struct uffdio_zeropage *uffdio_zeropage)
+{
+	struct io_uring_sqe sqe;
+	ssize_t res;
+
+	io_uring_prep_write_fixed(&sqe, 0, zeropage, uffdio_zeropage->range.len,
+			uffdio_zeropage->range.start|UFFDIO_WRITE_MODE_ZEROPAGE, BUF_IDX_ZERO);
+	sqe.flags |= IOSQE_FIXED_FILE;
+
+	res = uffd_iouring_submit_and_wait(&sqe);
+
+	/* Put res as if it was returned by the ioctl */
+	uffdio_zeropage->zeropage = res;
+
+	if (res >= 0 && res != uffdio_zeropage->range.len) {
+		fprintf(stderr, "%s got wrong size: %ld instead of %lld\n", __func__,
+				res, uffdio_zeropage->range.len);
+		exit(-1);
+	}
+
+	return res < 0 ? res : 0;
+}
+
 static void retry_uffdio_zeropage(int ufd,
 				  struct uffdio_zeropage *uffdio_zeropage,
 				  unsigned long offset)
@@ -961,7 +1485,7 @@ static void retry_uffdio_zeropage(int ufd,
 	uffd_test_ops->alias_mapping(&uffdio_zeropage->range.start,
 				     uffdio_zeropage->range.len,
 				     offset);
-	if (ioctl(ufd, UFFDIO_ZEROPAGE, uffdio_zeropage)) {
+	if (uffd_base_ops->zero(ufd, uffdio_zeropage)) {
 		if (uffdio_zeropage->zeropage != -EEXIST) {
 			fprintf(stderr, "UFFDIO_ZEROPAGE retry error %Ld\n",
 				uffdio_zeropage->zeropage);
@@ -988,7 +1512,7 @@ static int __uffdio_zeropage(int ufd, unsigned long offset, bool retry)
 	uffdio_zeropage.range.start = (unsigned long) area_dst + offset;
 	uffdio_zeropage.range.len = page_size;
 	uffdio_zeropage.mode = 0;
-	ret = ioctl(ufd, UFFDIO_ZEROPAGE, &uffdio_zeropage);
+	ret = uffd_base_ops->zero(ufd, &uffdio_zeropage);
 	if (ret) {
 		/* real retval in ufdio_zeropage.zeropage */
 		if (has_zeropage) {
@@ -1034,6 +1558,49 @@ static int uffdio_zeropage(int ufd, unsigned long offset)
 	return __uffdio_zeropage(ufd, offset, false);
 }
 
+static void userfaultfd_register(int uffd, struct uffdio_register *uffdio_register)
+{
+	int n_retries = 1000000;
+	int res;
+
+	/*
+	 * When using io-uring the release of the uffd might be slightly delayed.
+	 */
+	do {
+		res = 0;
+		if (!ioctl(uffd, UFFDIO_REGISTER, uffdio_register))
+			break;
+
+		res = errno;
+		if (res != EBUSY)
+			break;
+
+		pthread_yield();
+	} while (n_retries--);
+
+	if (!res)
+		return;
+
+	fprintf(stderr, "register failure: %s\n", strerror(res));
+	exit(1);
+}
+
+static void userfaultfd_close(void)
+{
+	if (close(uffd)) {
+		perror("close");
+		exit(1);
+	}
+
+	uffd = -1;
+
+	/* Exit the io_uring in order to drop the reference to the file */
+	if (ring_initialized) {
+		io_uring_queue_exit(&ring);
+		ring_initialized = false;
+	}
+}
+
 /* exercise UFFDIO_ZEROPAGE */
 static int userfaultfd_zeropage_test(void)
 {
@@ -1048,6 +1615,9 @@ static int userfaultfd_zeropage_test(void)
 
 	if (userfaultfd_open(0) < 0)
 		return 1;
+
+	local_req_id = READ_QUEUE_DEPTH;
+
 	uffdio_register.range.start = (unsigned long) area_dst;
 	uffdio_register.range.len = nr_pages * page_size;
 	uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING;
@@ -1073,7 +1643,13 @@ static int userfaultfd_zeropage_test(void)
 		}
 	}
 
-	close(uffd);
+	/* unregister */
+	if (ioctl(uffd, UFFDIO_UNREGISTER, &uffdio_register.range)) {
+		fprintf(stderr, "unregister failure\n");
+		return 1;
+	}
+
+	userfaultfd_close();
 	printf("done.\n");
 	return 0;
 }
@@ -1087,6 +1663,12 @@ static int userfaultfd_events_test(void)
 	pid_t pid;
 	char c;
 	struct uffd_stats stats = { 0 };
+	struct thread_arg thread_arg = {
+		.stats = &stats,
+		.req_id = READ_QUEUE_DEPTH,
+	};
+
+	local_req_id = READ_QUEUE_DEPTH + 1;
 
 	printf("testing events (fork, remap, remove): ");
 	fflush(stdout);
@@ -1105,10 +1687,8 @@ static int userfaultfd_events_test(void)
 	uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING;
 	if (test_uffdio_wp)
 		uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP;
-	if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) {
-		fprintf(stderr, "register failure\n");
-		exit(1);
-	}
+
+	userfaultfd_register(uffd, &uffdio_register);
 
 	expected_ioctls = uffd_test_ops->expected_ioctls;
 	if ((uffdio_register.ioctls & expected_ioctls) != expected_ioctls) {
@@ -1116,7 +1696,7 @@ static int userfaultfd_events_test(void)
 		exit(1);
 	}
 
-	if (pthread_create(&uffd_mon, &attr, uffd_poll_thread, &stats)) {
+	if (pthread_create(&uffd_mon, &attr, uffd_poll_thread, &thread_arg)) {
 		perror("uffd_poll_thread create");
 		exit(1);
 	}
@@ -1143,7 +1723,7 @@ static int userfaultfd_events_test(void)
 	if (pthread_join(uffd_mon, NULL))
 		return 1;
 
-	close(uffd);
+	userfaultfd_close();
 
 	uffd_stats_report(&stats, 1);
 
@@ -1160,6 +1740,12 @@ static int userfaultfd_sig_test(void)
 	pid_t pid;
 	char c;
 	struct uffd_stats stats = { 0 };
+	struct thread_arg thread_arg = {
+		.stats = &stats,
+		.req_id = READ_QUEUE_DEPTH,
+	};
+
+	local_req_id = READ_QUEUE_DEPTH + 1;
 
 	printf("testing signal delivery: ");
 	fflush(stdout);
@@ -1168,7 +1754,7 @@ static int userfaultfd_sig_test(void)
 		return 1;
 
 	features = UFFD_FEATURE_EVENT_FORK|UFFD_FEATURE_SIGBUS;
-	if (userfaultfd_open(features) < 0)
+	if (userfaultfd_open(features))
 		return 1;
 	fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK);
 
@@ -1177,10 +1763,8 @@ static int userfaultfd_sig_test(void)
 	uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING;
 	if (test_uffdio_wp)
 		uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP;
-	if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) {
-		fprintf(stderr, "register failure\n");
-		exit(1);
-	}
+
+	userfaultfd_register(uffd, &uffdio_register);
 
 	expected_ioctls = uffd_test_ops->expected_ioctls;
 	if ((uffdio_register.ioctls & expected_ioctls) != expected_ioctls) {
@@ -1196,7 +1780,7 @@ static int userfaultfd_sig_test(void)
 	if (uffd_test_ops->release_pages(area_dst))
 		return 1;
 
-	if (pthread_create(&uffd_mon, &attr, uffd_poll_thread, &stats)) {
+	if (pthread_create(&uffd_mon, &attr, uffd_poll_thread, &thread_arg)) {
 		perror("uffd_poll_thread create");
 		exit(1);
 	}
@@ -1207,8 +1791,10 @@ static int userfaultfd_sig_test(void)
 		exit(1);
 	}
 
-	if (!pid)
+	if (!pid) {
+		local_req_id++;
 		exit(faulting_process(2));
+	}
 
 	waitpid(pid, &err, 0);
 	if (err) {
@@ -1223,11 +1809,14 @@ static int userfaultfd_sig_test(void)
 	if (pthread_join(uffd_mon, (void **)&userfaults))
 		return 1;
 
-	printf("done.\n");
 	if (userfaults)
 		fprintf(stderr, "Signal test failed, userfaults: %ld\n",
 			userfaults);
-	close(uffd);
+
+	if (ioctl(uffd, UFFDIO_UNREGISTER, &uffdio_register.range))
+		perror("unregister failure");
+
+	userfaultfd_close();
 	return userfaults != 0;
 }
 
@@ -1248,9 +1837,6 @@ static int userfaultfd_stress(void)
 	if (!area_dst)
 		return 1;
 
-	if (userfaultfd_open(0) < 0)
-		return 1;
-
 	count_verify = malloc(nr_pages * sizeof(unsigned long long));
 	if (!count_verify) {
 		perror("count_verify");
@@ -1290,7 +1876,9 @@ static int userfaultfd_stress(void)
 	zeropage = area;
 	bzero(zeropage, page_size);
 
-	pthread_mutex_lock(&uffd_read_mutex);
+	/* Call only once all memory allocation is done */
+	if (userfaultfd_open(0) < 0)
+		return 1;
 
 	pthread_attr_init(&attr);
 	pthread_attr_setstacksize(&attr, 16*1024*1024);
@@ -1420,13 +2008,17 @@ static int userfaultfd_stress(void)
 		area_dst_alias = tmp_area;
 
 		uffd_stats_report(uffd_stats, nr_cpus);
+
+		init_iouring();
 	}
 
 	if (err)
 		return err;
 
-	close(uffd);
-	return userfaultfd_zeropage_test() || userfaultfd_sig_test()
+	userfaultfd_close();
+
+	return userfaultfd_zeropage_test()
+		|| (!test_mods[MOD_IOURING] && userfaultfd_sig_test())
 		|| userfaultfd_events_test();
 }
 
@@ -1454,8 +2046,70 @@ unsigned long default_huge_page_size(void)
 	return hps;
 }
 
-static void set_test_type(const char *type)
+static const struct uffd_base_ops uffd_sync_ops = {
+	.read_msg = uffd_read_msg,
+	.poll_msg = uffd_poll_msg,
+	.copy = uffd_copy_ioctl,
+	.zero = uffd_zeropage_ioctl,
+};
+
+static const struct uffd_base_ops uffd_write_ops = {
+	.read_msg = uffd_read_msg,
+	.poll_msg = uffd_poll_msg,
+	.copy = uffd_copy_write,
+	.zero = uffd_zeropage_write,
+};
+
+static const struct uffd_base_ops uffd_iouring_ops = {
+	.read_msg = uffd_read_msg_iouring,
+	.poll_msg = uffd_poll_msg_iouring,
+	.copy = iouring_copy,
+	.zero = uffd_zeropage_iouring,
+};
+
+static const char **get_test_types(const char *arg)
 {
+	char *null_delimited;
+	const char **types;
+	int types_num = 1;
+	int type_idx = 0;
+	int i;
+
+	null_delimited = calloc(strlen(arg) + 1, 1);
+	if (!null_delimited) {
+		fprintf(stderr, "Error allocating null delimited arg string\n");
+		exit(1);
+	}
+
+	for (i = 0; i < strlen(arg); i++) {
+		if (arg[i] == ':')
+			types_num++;
+	}
+
+	types = calloc(types_num + 1, sizeof(*types));
+	if (!types) {
+		fprintf(stderr, "Error allocating types array\n");
+		exit(1);
+	}
+
+	types[0] = null_delimited;
+	for (i = 0; i < strlen(arg); i++) {
+		if (arg[i] == ':') {
+			types[++type_idx] = &null_delimited[i+1];
+			continue;
+		}
+		null_delimited[i] = arg[i];
+	}
+	return types;
+}
+
+static void set_test_type(const char *raw_types)
+{
+	const char **types = get_test_types(raw_types);
+	const char **modifiers = &types[1];
+	const char *type = types[0];
+	int i, j;
+
 	if (!strcmp(type, "anon")) {
 		test_type = TEST_ANON;
 		uffd_test_ops = &anon_uffd_test_ops;
@@ -1490,6 +2144,30 @@ static void set_test_type(const char *type)
 		fprintf(stderr, "Impossible to run this test\n");
 		exit(2);
 	}
+
+	/* Process test modifiers */
+	for (i = 0; modifiers[i] != NULL; i++) {
+		for (j = 0; j < N_MODIFIERS; j++) {
+			if (!strcmp(modifiers[i], mod_strs[j]))
+				break;
+		}
+		if (j == N_MODIFIERS) {
+			fprintf(stderr, "Unknown test modifier: %s\n", modifiers[i]);
+			exit(1);
+		}
+
+		test_mods[j] = true;
+	}
+
+	uffd_base_ops = &uffd_sync_ops;
+	if (test_mods[MOD_IOURING]) {
+		if (test_type == TEST_SHMEM) {
+			fprintf(stderr, "shmem test is incompatible with iouring\n");
+			exit(1);
+		}
+		uffd_base_ops = &uffd_iouring_ops;
+	} else if (test_mods[MOD_WRITE])
+		uffd_base_ops = &uffd_write_ops;
 }
 
 static void sigalrm(int sig)
@@ -1522,6 +2200,16 @@ int main(int argc, char **argv)
 		usage();
 	}
 
+	if (test_mods[MOD_IOURING]) {
+		/* Do not overload the system in the async tests */
+		nr_cpus = (nr_cpus - 1) / 3;
+
+		if (nr_cpus < 1) {
+			fprintf(stderr, "CPUs are overcommitted for async, slow test is expected\n");
+			nr_cpus = 1;
+		}
+	}
+
 	bounces = atoi(argv[3]);
 	if (bounces <= 0) {
 		fprintf(stderr, "invalid bounces\n");
-- 
2.25.1

Re: [RFC PATCH 07/13] fs/userfaultfd: support read_iter to use io_uring

[Jens Axboe]

On 11/28/20 5:45 PM, Nadav Amit wrote:
> From: Nadav Amit <namit@vmware.com>
> 
> iouring with userfaultfd cannot currently be used fixed buffers since
> userfaultfd does not provide read_iter(). This is required to allow
> asynchronous (queued) reads from userfaultfd.
> 
> To support async-reads of userfaultfd provide read_iter() instead of
> read().
> 
> Cc: Jens Axboe <axboe@kernel.dk>
> Cc: Andrea Arcangeli <aarcange@redhat.com>
> Cc: Peter Xu <peterx@redhat.com>
> Cc: Alexander Viro <viro@zeniv.linux.org.uk>
> Cc: io-uring@vger.kernel.org
> Cc: linux-fsdevel@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-mm@kvack.org
> Signed-off-by: Nadav Amit <namit@vmware.com>
> ---
>  fs/userfaultfd.c | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)
> 
> diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
> index b6a04e526025..6333b4632742 100644
> --- a/fs/userfaultfd.c
> +++ b/fs/userfaultfd.c
> @@ -1195,9 +1195,9 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
>  	return ret;
>  }
>  
> -static ssize_t userfaultfd_read(struct file *file, char __user *buf,
> -				size_t count, loff_t *ppos)
> +static ssize_t userfaultfd_read_iter(struct kiocb *iocb, struct iov_iter *to)
>  {
> +	struct file *file = iocb->ki_filp;
>  	struct userfaultfd_ctx *ctx = file->private_data;
>  	ssize_t _ret, ret = 0;
>  	struct uffd_msg msg;
> @@ -1207,16 +1207,18 @@ static ssize_t userfaultfd_read(struct file *file, char __user *buf,
>  		return -EINVAL;
>  
>  	for (;;) {
> -		if (count < sizeof(msg))
> +		if (iov_iter_count(to) < sizeof(msg))
>  			return ret ? ret : -EINVAL;
>  		_ret = userfaultfd_ctx_read(ctx, no_wait, &msg);

'no_wait' should be changed to factor in iocb->ki_flags & IOCB_NOWAIT as well,
not just f_flags & O_NONBLOCK.

I didn't check your write_iter, but if appropriate, that should do that
too.

-- 
Jens Axboe

Re: [RFC PATCH 07/13] fs/userfaultfd: support read_iter to use io_uring

[Nadav Amit]

> On Nov 30, 2020, at 10:20 AM, Jens Axboe <axboe@kernel.dk> wrote:
> 
> On 11/28/20 5:45 PM, Nadav Amit wrote:
>> From: Nadav Amit <namit@vmware.com>
>> 
>> iouring with userfaultfd cannot currently be used fixed buffers since
>> userfaultfd does not provide read_iter(). This is required to allow
>> asynchronous (queued) reads from userfaultfd.
>> 
>> To support async-reads of userfaultfd provide read_iter() instead of
>> read().
>> 
>> Cc: Jens Axboe <axboe@kernel.dk>
>> Cc: Andrea Arcangeli <aarcange@redhat.com>
>> Cc: Peter Xu <peterx@redhat.com>
>> Cc: Alexander Viro <viro@zeniv.linux.org.uk>
>> Cc: io-uring@vger.kernel.org
>> Cc: linux-fsdevel@vger.kernel.org
>> Cc: linux-kernel@vger.kernel.org
>> Cc: linux-mm@kvack.org
>> Signed-off-by: Nadav Amit <namit@vmware.com>
>> ---
>> fs/userfaultfd.c | 18 ++++++++++--------
>> 1 file changed, 10 insertions(+), 8 deletions(-)
>> 
>> diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
>> index b6a04e526025..6333b4632742 100644
>> --- a/fs/userfaultfd.c
>> +++ b/fs/userfaultfd.c
>> @@ -1195,9 +1195,9 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
>> 	return ret;
>> }
>> 
>> -static ssize_t userfaultfd_read(struct file *file, char __user *buf,
>> -				size_t count, loff_t *ppos)
>> +static ssize_t userfaultfd_read_iter(struct kiocb *iocb, struct iov_iter *to)
>> {
>> +	struct file *file = iocb->ki_filp;
>> 	struct userfaultfd_ctx *ctx = file->private_data;
>> 	ssize_t _ret, ret = 0;
>> 	struct uffd_msg msg;
>> @@ -1207,16 +1207,18 @@ static ssize_t userfaultfd_read(struct file *file, char __user *buf,
>> 		return -EINVAL;
>> 
>> 	for (;;) {
>> -		if (count < sizeof(msg))
>> +		if (iov_iter_count(to) < sizeof(msg))
>> 			return ret ? ret : -EINVAL;
>> 		_ret = userfaultfd_ctx_read(ctx, no_wait, &msg);
> 
> 'no_wait' should be changed to factor in iocb->ki_flags & IOCB_NOWAIT as well,
> not just f_flags & O_NONBLOCK.
> 
> I didn't check your write_iter, but if appropriate, that should do that
> too.

Thanks, I completely missed this point and will fix it in v1 (if I get
a positive feedback on the rest from the userfaultfd people).

Re: [RFC PATCH 12/13] fs/userfaultfd: kmem-cache for wait-queue objects

[Nadav Amit]

> On Nov 28, 2020, at 4:45 PM, Nadav Amit <nadav.amit@gmail.com> wrote:
> 
> From: Nadav Amit <namit@vmware.com>
> 
> Allocating work-queue objects on the stack has usually negative
> performance side-effects. First, it is hard to ensure alignment to
> cache-lines without increasing the stack size. Second, it might cause
> false sharing. Third, it is more likely to encounter TLB misses as
> objects are more likely reside on different pages.
> 
> Allocate userfaultfd wait-queue objects on the heap using kmem-cache for
> better performance.

Err… The wait-queue objects are still on the stack in some cases that I
missed. Will fix.

Re: [RFC PATCH 01/13] fs/userfaultfd: fix wrong error code on WP & !VM_MAYWRITE

[Mike Kravetz]

On 11/28/20 4:45 PM, Nadav Amit wrote:
> From: Nadav Amit <namit@vmware.com>
> 
> It is possible to get an EINVAL error instead of EPERM if the following
> test vm_flags have VM_UFFD_WP but do not have VM_MAYWRITE, as "ret" is
> overwritten since commit cab350afcbc9 ("userfaultfd: hugetlbfs: allow
> registration of ranges containing huge pages").
> 
> Fix it.
> 
> Cc: Mike Kravetz <mike.kravetz@oracle.com>
> Cc: Jens Axboe <axboe@kernel.dk>
> Cc: Andrea Arcangeli <aarcange@redhat.com>
> Cc: Peter Xu <peterx@redhat.com>
> Cc: Alexander Viro <viro@zeniv.linux.org.uk>
> Cc: io-uring@vger.kernel.org
> Cc: linux-fsdevel@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-mm@kvack.org
> Fixes: cab350afcbc9 ("userfaultfd: hugetlbfs: allow registration of ranges containing huge pages")
> Signed-off-by: Nadav Amit <namit@vmware.com>
> ---
>  fs/userfaultfd.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
> index 000b457ad087..c8ed4320370e 100644
> --- a/fs/userfaultfd.c
> +++ b/fs/userfaultfd.c
> @@ -1364,6 +1364,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
>  			if (end & (vma_hpagesize - 1))
>  				goto out_unlock;
>  		}
> +		ret = -EPERM;
>  		if ((vm_flags & VM_UFFD_WP) && !(cur->vm_flags & VM_MAYWRITE))
>  			goto out_unlock;
>  

Thanks!  We should return EPERM in that case.

However, the check for VM_UFFD_WP && !VM_MAYWRITE went in after commit
cab350afcbc9.  I think it is more accurate to say that the issue was
introduced with commit 63b2d4174c4a ("Introduce the new uffd-wp APIs
for userspace.").  The convention in userfaultfd_register() is that the
return code is set before testing condition which could cause return.
Therefore, when 63b2d4174c4a added the VM_UFFD_WP && !VM_MAYWRITE check,
it should have also added the 'ret = -EPERM;' statement.

With changes to commit message and Fixes tag,

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
-- 
Mike Kravetz

Re: [RFC PATCH 11/13] fs/userfaultfd: complete write asynchronously

[Nadav Amit]

> On Nov 28, 2020, at 4:45 PM, Nadav Amit <nadav.amit@gmail.com> wrote:
> 
> From: Nadav Amit <namit@vmware.com>
> 
> Userfaultfd writes can now be used for copy/zeroing. When using iouring
> with userfaultfd, performing the copying/zeroing on the faulting thread
> instead of the handler/iouring thread has several advantages:
> 
> (1) The data of the faulting thread will be available on the local
> caches, which would make subsequent memory accesses faster.
> 
> (2) find_vma() would be able to use the vma-cache, which cannot be done
> from a different process or io-uring kernel thread.
> 
> (3) The page is more likely to be allocated on the correct NUMA node.
> 
> To do so, userfaultfd work queue structs are extended to hold the
> information that is required for the faulting thread to copy/zero. The
> handler wakes one of the faulting threads to perform the copy/zero and
> that thread wakes the other threads after the zero/copy is done.

I noticed some bugs of mine in this patch, but more importantly I realized
that the there may be a more performant solution to do the copying on the
faulting thread - without async-writes.

Please do not review this patch and the next one (12/13).

Feedback for the rest of the series is of course welcomed.

Regards,
Nadav

[fs/userfaultfd] fec9227821: will-it-scale.per_process_ops -5.5% regression

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 34423 bytes --]


Greeting,

FYI, we noticed a -5.5% regression of will-it-scale.per_process_ops due to commit:


commit: fec92278217ba01b4a3b9f9ec0f6a392069cdbd0 ("[RFC PATCH 12/13] fs/userfaultfd: kmem-cache for wait-queue objects")
url: https://github.com/0day-ci/linux/commits/Nadav-Amit/fs-userfaultfd-support-iouring-and-polling/20201129-085119
base: https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git next

in testcase: will-it-scale
on test machine: 104 threads Skylake with 192G memory
with following parameters:

	nr_task: 50%
	mode: process
	test: brk1
	cpufreq_governor: performance
	ucode: 0x2006a08

test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
test-url: https://github.com/antonblanchard/will-it-scale

In addition to that, the commit also has significant impact on the following tests:

+------------------+---------------------------------------------------------------------------+
| testcase: change | will-it-scale: will-it-scale.per_process_ops -11.0% regression            |
| test machine     | 192 threads Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz with 192G memory |
| test parameters  | cpufreq_governor=performance                                              |
|                  | mode=process                                                              |
|                  | nr_task=16                                                                |
|                  | test=brk1                                                                 |
|                  | ucode=0x5003003                                                           |
+------------------+---------------------------------------------------------------------------+


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


Details are as below:
-------------------------------------------------------------------------------------------------->


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml

=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase/ucode:
  gcc-9/performance/x86_64-rhel-8.3/process/50%/debian-10.4-x86_64-20200603.cgz/lkp-skl-fpga01/brk1/will-it-scale/0x2006a08

commit: 
  ddfa740e9c ("fs/userfaultfd: complete write asynchronously")
  fec9227821 ("fs/userfaultfd: kmem-cache for wait-queue objects")

ddfa740e9caf7642 fec92278217ba01b4a3b9f9ec0f 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
  65219467            -5.5%   61607693        will-it-scale.52.processes
   1254220            -5.5%    1184763        will-it-scale.per_process_ops
  65219467            -5.5%   61607693        will-it-scale.workload
     20.00            -5.0%      19.00        vmstat.cpu.us
     34.22            -4.0%      32.85 ±  2%  boot-time.boot
      3146            -4.3%       3010 ±  2%  boot-time.idle
    654.25 ± 20%     -39.0%     399.25 ± 25%  numa-vmstat.node0.nr_active_anon
    654.25 ± 20%     -39.0%     399.25 ± 25%  numa-vmstat.node0.nr_zone_active_anon
     10140 ±  9%     +27.1%      12889 ± 10%  numa-vmstat.node1.nr_slab_reclaimable
     21388 ±  3%     +13.2%      24204 ±  7%  numa-vmstat.node1.nr_slab_unreclaimable
      1096 ±  8%    +304.6%       4434        slabinfo.dmaengine-unmap-16.active_objs
      1096 ±  8%    +304.6%       4434        slabinfo.dmaengine-unmap-16.num_objs
      4838 ±  4%     -17.0%       4018 ±  3%  slabinfo.eventpoll_pwq.active_objs
      4838 ±  4%     -17.0%       4018 ±  3%  slabinfo.eventpoll_pwq.num_objs
      2689 ± 18%     -37.7%       1675 ± 22%  numa-meminfo.node0.Active
      2617 ± 20%     -38.9%       1599 ± 25%  numa-meminfo.node0.Active(anon)
     40564 ±  9%     +27.1%      51560 ± 10%  numa-meminfo.node1.KReclaimable
     40564 ±  9%     +27.1%      51560 ± 10%  numa-meminfo.node1.SReclaimable
     85552 ±  3%     +13.2%      96818 ±  7%  numa-meminfo.node1.SUnreclaim
    126118 ±  4%     +17.7%     148380 ±  8%  numa-meminfo.node1.Slab
      7.12 ± 17%     -87.9%       0.86 ±100%  sched_debug.cfs_rq:/.removed.load_avg.avg
     33.50 ±  8%     -74.6%       8.50 ±100%  sched_debug.cfs_rq:/.removed.load_avg.stddev
      2.76 ± 27%     -88.1%       0.33 ±102%  sched_debug.cfs_rq:/.removed.runnable_avg.avg
     80.58 ±  9%     -60.1%      32.12 ±102%  sched_debug.cfs_rq:/.removed.runnable_avg.max
     13.39 ± 18%     -75.9%       3.23 ±102%  sched_debug.cfs_rq:/.removed.runnable_avg.stddev
      2.76 ± 28%     -88.1%       0.33 ±102%  sched_debug.cfs_rq:/.removed.util_avg.avg
     80.58 ±  9%     -60.1%      32.12 ±102%  sched_debug.cfs_rq:/.removed.util_avg.max
     13.39 ± 18%     -75.9%       3.23 ±102%  sched_debug.cfs_rq:/.removed.util_avg.stddev
      1036 ±  8%     +14.0%       1181 ±  8%  sched_debug.cpu.nr_switches.min
    -22.25           -30.3%     -15.50        sched_debug.cpu.nr_uninterruptible.min
      2.50 ± 91%   +7990.0%     202.25 ±166%  interrupts.CPU1.TLB:TLB_shootdowns
    451.00           +12.8%     508.75 ±  5%  interrupts.CPU100.CAL:Function_call_interrupts
    457.50 ±  3%     +12.3%     514.00 ±  8%  interrupts.CPU103.CAL:Function_call_interrupts
     48.75 ±130%     -89.7%       5.00 ±122%  interrupts.CPU15.RES:Rescheduling_interrupts
      3195 ± 18%    +140.3%       7678        interrupts.CPU24.NMI:Non-maskable_interrupts
      3195 ± 18%    +140.3%       7678        interrupts.CPU24.PMI:Performance_monitoring_interrupts
      8.25 ± 41%   +1009.1%      91.50 ± 49%  interrupts.CPU24.RES:Rescheduling_interrupts
    694.25 ± 28%     +89.6%       1316 ± 24%  interrupts.CPU3.CAL:Function_call_interrupts
      3946 ± 46%     +86.3%       7352 ± 12%  interrupts.CPU30.NMI:Non-maskable_interrupts
      3946 ± 46%     +86.3%       7352 ± 12%  interrupts.CPU30.PMI:Performance_monitoring_interrupts
     30.00 ±115%    +200.8%      90.25 ± 51%  interrupts.CPU36.RES:Rescheduling_interrupts
      7.50 ± 14%   +1123.3%      91.75 ± 51%  interrupts.CPU40.RES:Rescheduling_interrupts
     10.50 ± 38%    +590.5%      72.50 ± 60%  interrupts.CPU42.RES:Rescheduling_interrupts
    449.00          +214.1%       1410 ±107%  interrupts.CPU76.CAL:Function_call_interrupts
    448.75           +99.8%     896.75 ± 51%  interrupts.CPU82.CAL:Function_call_interrupts
    453.25           +78.7%     809.75 ± 50%  interrupts.CPU86.CAL:Function_call_interrupts
    456.00          +145.0%       1117 ± 93%  interrupts.CPU90.CAL:Function_call_interrupts
     72.75 ± 82%     -89.7%       7.50 ± 33%  interrupts.CPU92.RES:Rescheduling_interrupts
      2.00 ± 79%   +1737.5%      36.75 ±146%  interrupts.CPU92.TLB:TLB_shootdowns
      5545 ± 32%     +32.6%       7353 ± 12%  interrupts.CPU93.NMI:Non-maskable_interrupts
      5545 ± 32%     +32.6%       7353 ± 12%  interrupts.CPU93.PMI:Performance_monitoring_interrupts
     10.50 ± 10%    +514.3%      64.50 ± 76%  interrupts.CPU93.RES:Rescheduling_interrupts
 2.683e+10            +3.7%  2.781e+10        perf-stat.i.branch-instructions
      0.68            -0.1        0.63        perf-stat.i.branch-miss-rate%
 1.811e+08            -5.2%  1.718e+08        perf-stat.i.branch-misses
      1.12            -4.6%       1.07        perf-stat.i.cpi
      0.17            -0.0        0.15        perf-stat.i.dTLB-load-miss-rate%
  64926279            -5.5%   61335249        perf-stat.i.dTLB-load-misses
 3.779e+10            +5.6%   3.99e+10        perf-stat.i.dTLB-loads
   2.1e+10            +2.7%  2.157e+10        perf-stat.i.dTLB-stores
 1.292e+11            +4.6%  1.352e+11        perf-stat.i.instructions
      1957            +3.7%       2029        perf-stat.i.instructions-per-iTLB-miss
      0.89            +4.8%       0.94        perf-stat.i.ipc
    823.71            +4.3%     858.87        perf-stat.i.metric.M/sec
      0.67            -0.1        0.62        perf-stat.overall.branch-miss-rate%
      1.12            -4.6%       1.07        perf-stat.overall.cpi
      0.17            -0.0        0.15        perf-stat.overall.dTLB-load-miss-rate%
      1933            +3.6%       2004        perf-stat.overall.instructions-per-iTLB-miss
      0.89            +4.8%       0.94        perf-stat.overall.ipc
     82.14            +1.7       83.85        perf-stat.overall.node-store-miss-rate%
    597331           +10.8%     662119        perf-stat.overall.path-length
 2.674e+10            +3.7%  2.772e+10        perf-stat.ps.branch-instructions
 1.804e+08            -5.2%   1.71e+08        perf-stat.ps.branch-misses
  64722645            -5.5%   61153001        perf-stat.ps.dTLB-load-misses
 3.766e+10            +5.6%  3.976e+10        perf-stat.ps.dTLB-loads
 2.093e+10            +2.7%   2.15e+10        perf-stat.ps.dTLB-stores
 1.288e+11            +4.6%  1.347e+11        perf-stat.ps.instructions
 3.896e+13            +4.7%  4.079e+13        perf-stat.total.instructions
     19290 ± 14%     -31.0%      13316 ±  5%  softirqs.CPU13.RCU
     22289 ± 79%     -44.0%      12473 ±110%  softirqs.CPU18.SCHED
     19387 ± 12%     -26.7%      14206 ±  6%  softirqs.CPU21.RCU
     14997 ±  5%     +51.6%      22739 ±  2%  softirqs.CPU24.RCU
     39995 ±  3%     -88.9%       4457        softirqs.CPU24.SCHED
     22221 ± 79%     -73.2%       5963 ± 42%  softirqs.CPU28.SCHED
     18559 ± 24%     -28.7%      13237 ±  7%  softirqs.CPU33.RCU
     16004 ± 19%     +31.9%      21107 ±  4%  softirqs.CPU34.RCU
     22675 ±  7%     -31.0%      15655 ± 18%  softirqs.CPU35.RCU
      4273 ± 17%    +620.7%      30798 ± 48%  softirqs.CPU35.SCHED
     20207 ± 16%     -23.6%      15448 ± 19%  softirqs.CPU37.RCU
     15311 ± 19%     +37.4%      21044 ±  7%  softirqs.CPU4.RCU
     30669 ± 48%     -68.4%       9687 ± 89%  softirqs.CPU40.SCHED
     20195 ± 15%     -23.5%      15442 ± 20%  softirqs.CPU41.RCU
     22191 ± 25%     -37.8%      13806 ± 10%  softirqs.CPU43.RCU
     16782 ± 14%     -21.8%      13122 ±  4%  softirqs.CPU47.RCU
     22290 ±  8%     -22.0%      17381 ± 22%  softirqs.CPU49.RCU
     22338 ± 79%     -79.7%       4526        softirqs.CPU61.SCHED
     30860 ± 49%     -85.3%       4533        softirqs.CPU65.SCHED
     24975 ± 57%     -82.2%       4447        softirqs.CPU73.SCHED
     20318 ±  6%     -39.8%      12236 ±  2%  softirqs.CPU76.RCU
      4615 ±  5%    +761.7%      39773 ±  2%  softirqs.CPU76.SCHED
     21142 ±  3%     -29.2%      14979 ±  9%  softirqs.CPU82.RCU
     13144 ±113%    +199.0%      39305 ±  3%  softirqs.CPU86.SCHED
     39713 ±  4%     -67.4%      12956 ±110%  softirqs.CPU87.SCHED
     17739 ± 16%     -22.2%      13795 ±  4%  softirqs.CPU88.RCU
     18651 ± 15%     -27.5%      13514 ± 11%  softirqs.CPU92.RCU
     30590 ± 48%     -57.5%      12998 ±111%  softirqs.CPU93.SCHED
     15264 ± 17%     +26.7%      19337 ±  5%  softirqs.CPU95.RCU
      1.33 ± 10%      -0.1        1.20 ± 10%  perf-profile.calltrace.cycles-pp.find_vma.__do_munmap.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
      0.80 ± 11%      -0.1        0.69 ± 11%  perf-profile.calltrace.cycles-pp.security_mmap_addr.get_unmapped_area.do_brk_flags.__x64_sys_brk.do_syscall_64
      0.00            +0.8        0.76 ±  9%  perf-profile.calltrace.cycles-pp.memset_erms.kmem_cache_alloc.userfaultfd_unmap_complete.__x64_sys_brk.do_syscall_64
      0.00            +0.9        0.94 ±  4%  perf-profile.calltrace.cycles-pp.kmem_cache_free.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
      0.00            +2.3        2.29 ± 13%  perf-profile.calltrace.cycles-pp.kmem_cache_alloc.userfaultfd_unmap_complete.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
      0.00            +2.5        2.51 ± 12%  perf-profile.calltrace.cycles-pp.userfaultfd_unmap_complete.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
      0.55 ± 10%      -0.3        0.28 ± 14%  perf-profile.children.cycles-pp.vma_merge
      1.81 ± 10%      -0.2        1.59 ± 10%  perf-profile.children.cycles-pp.get_unmapped_area
      1.72 ± 10%      -0.2        1.54 ± 10%  perf-profile.children.cycles-pp.find_vma
      0.30 ±  9%      -0.1        0.15 ± 11%  perf-profile.children.cycles-pp.cap_capable
      0.82 ± 11%      -0.1        0.70 ± 11%  perf-profile.children.cycles-pp.security_mmap_addr
      0.57 ± 11%      -0.1        0.50 ±  9%  perf-profile.children.cycles-pp.obj_cgroup_charge
      0.32 ± 10%      -0.1        0.25 ± 11%  perf-profile.children.cycles-pp.__vm_enough_memory
      0.32 ± 12%      -0.1        0.26 ±  9%  perf-profile.children.cycles-pp.__x86_retpoline_rax
      0.46 ±  9%      -0.1        0.41 ± 11%  perf-profile.children.cycles-pp.vmacache_find
      0.22 ± 11%      -0.0        0.19 ± 10%  perf-profile.children.cycles-pp.exit_to_user_mode_prepare
      0.24 ±  9%      -0.0        0.21 ± 11%  perf-profile.children.cycles-pp.free_pgd_range
      0.00            +0.1        0.08 ± 10%  perf-profile.children.cycles-pp.should_failslab
      2.83 ± 11%      +0.7        3.49 ±  7%  perf-profile.children.cycles-pp.kmem_cache_free
      0.00            +0.8        0.77 ±  9%  perf-profile.children.cycles-pp.memset_erms
      4.08 ± 11%      +1.9        6.03 ± 11%  perf-profile.children.cycles-pp.kmem_cache_alloc
      0.21 ± 10%      +2.3        2.52 ± 12%  perf-profile.children.cycles-pp.userfaultfd_unmap_complete
      0.53 ±  9%      -0.3        0.27 ± 14%  perf-profile.self.cycles-pp.vma_merge
      0.28 ± 11%      -0.1        0.14 ± 11%  perf-profile.self.cycles-pp.cap_capable
      0.99 ± 10%      -0.1        0.88 ± 11%  perf-profile.self.cycles-pp.unmap_page_range
      0.78 ± 11%      -0.1        0.69 ±  9%  perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
      0.70 ± 11%      -0.1        0.62 ± 10%  perf-profile.self.cycles-pp.vm_area_alloc
      0.41 ± 11%      -0.1        0.34 ± 12%  perf-profile.self.cycles-pp.percpu_counter_add_batch
      0.55 ± 12%      -0.1        0.49 ±  9%  perf-profile.self.cycles-pp.obj_cgroup_charge
      0.44 ±  9%      -0.1        0.39 ± 11%  perf-profile.self.cycles-pp.vmacache_find
      0.25 ± 12%      -0.1        0.20 ± 10%  perf-profile.self.cycles-pp.__x86_retpoline_rax
      0.36 ± 11%      -0.0        0.31 ± 10%  perf-profile.self.cycles-pp.security_mmap_addr
      0.19 ± 11%      -0.0        0.16 ± 10%  perf-profile.self.cycles-pp.exit_to_user_mode_prepare
      0.10 ± 12%      -0.0        0.08 ± 13%  perf-profile.self.cycles-pp.__vm_enough_memory
      0.48 ± 10%      +0.1        0.61 ±  9%  perf-profile.self.cycles-pp.cap_vm_enough_memory
      0.00            +0.7        0.73 ± 10%  perf-profile.self.cycles-pp.memset_erms
      1.86 ± 11%      +0.8        2.62 ±  7%  perf-profile.self.cycles-pp.kmem_cache_free
      1.91 ± 11%      +0.8        2.74 ± 12%  perf-profile.self.cycles-pp.kmem_cache_alloc


                                                                                
                              will-it-scale.52.processes                        
                                                                                
   6.6e+07 +----------------------------------------------------------------+   
  6.55e+07 |.+..+.+.+..                          .+..+.+.+..+.+.            |   
           |                            .+..+.+.+               +..+.+.+    |   
   6.5e+07 |-+         +.+.  .+.+.+..+.+                                    |   
  6.45e+07 |-+             +.                                               |   
           |                                                                |   
   6.4e+07 |-+                                                              |   
  6.35e+07 |-+                                                              |   
   6.3e+07 |-+                                                              |   
           |                                                                |   
  6.25e+07 |-+                                                              |   
   6.2e+07 |-+                                                              |   
           |           O   O  O O O           O   O  O O O  O O O  O O O  O |   
  6.15e+07 |-O  O O O    O           O O O  O                               |   
   6.1e+07 +----------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                             will-it-scale.per_process_ops                      
                                                                                
  1.27e+06 +----------------------------------------------------------------+   
  1.26e+06 |.+..+.+.+..                          .+..+.+.+..+.+.            |   
           |                            .+..+.+.+               +..+.+.+    |   
  1.25e+06 |-+         +.+.+..+.+.+..+.+                                    |   
  1.24e+06 |-+                                                              |   
           |                                                                |   
  1.23e+06 |-+                                                              |   
  1.22e+06 |-+                                                              |   
  1.21e+06 |-+                                                              |   
           |                                                                |   
   1.2e+06 |-+                                                              |   
  1.19e+06 |-+                                         O        O           |   
           |    O O O  O O O  O O O  O O    O O   O  O   O  O O    O O O  O |   
  1.18e+06 |-O                           O      O                           |   
  1.17e+06 +----------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                                will-it-scale.workload                          
                                                                                
   6.6e+07 +----------------------------------------------------------------+   
  6.55e+07 |.+..+.+.+..                          .+..+.+.+..+.+.            |   
           |                            .+..+.+.+               +..+.+.+    |   
   6.5e+07 |-+         +.+.  .+.+.+..+.+                                    |   
  6.45e+07 |-+             +.                                               |   
           |                                                                |   
   6.4e+07 |-+                                                              |   
  6.35e+07 |-+                                                              |   
   6.3e+07 |-+                                                              |   
           |                                                                |   
  6.25e+07 |-+                                                              |   
   6.2e+07 |-+                                                              |   
           |           O   O  O O O           O   O  O O O  O O O  O O O  O |   
  6.15e+07 |-O  O O O    O           O O O  O                               |   
   6.1e+07 +----------------------------------------------------------------+   
                                                                                
                                                                                
[*] bisect-good sample
[O] bisect-bad  sample

***************************************************************************************************
lkp-csl-2ap2: 192 threads Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz with 192G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase/ucode:
  gcc-9/performance/x86_64-rhel-8.3/process/16/debian-10.4-x86_64-20200603.cgz/lkp-csl-2ap2/brk1/will-it-scale/0x5003003

commit: 
  ddfa740e9c ("fs/userfaultfd: complete write asynchronously")
  fec9227821 ("fs/userfaultfd: kmem-cache for wait-queue objects")

ddfa740e9caf7642 fec92278217ba01b4a3b9f9ec0f 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
  46606610           -11.0%   41486565        will-it-scale.16.processes
   2912912           -11.0%    2592909        will-it-scale.per_process_ops
  46606610           -11.0%   41486565        will-it-scale.workload
      0.72            -0.1        0.65        mpstat.cpu.all.usr%
     17741            -4.4%      16964        proc-vmstat.nr_shmem
   -116535          -515.3%     484006 ± 50%  sched_debug.cfs_rq:/.spread0.avg
      1380 ±  6%    +495.6%       8222        slabinfo.dmaengine-unmap-16.active_objs
     32.50 ±  7%    +500.0%     195.00        slabinfo.dmaengine-unmap-16.active_slabs
      1380 ±  6%    +495.6%       8222        slabinfo.dmaengine-unmap-16.num_objs
     32.50 ±  7%    +500.0%     195.00        slabinfo.dmaengine-unmap-16.num_slabs
     11962 ±  7%     -17.3%       9891 ± 12%  softirqs.CPU10.RCU
     10075 ± 23%     +28.9%      12985 ±  4%  softirqs.CPU110.RCU
     42801 ±  4%      -5.8%      40327 ±  2%  softirqs.CPU136.SCHED
     42633 ±  4%     -15.2%      36169 ± 18%  softirqs.CPU137.SCHED
     42786 ±  4%      -6.8%      39864        softirqs.CPU156.SCHED
     11795 ±  8%     -16.6%       9835 ± 11%  softirqs.CPU2.RCU
     42004 ±  4%      -5.9%      39537 ±  3%  softirqs.CPU25.SCHED
     39956 ±  4%     -65.4%      13836 ±110%  softirqs.CPU5.SCHED
      9734 ±  8%     -13.2%       8450 ±  8%  softirqs.CPU68.RCU
     41424 ±  4%     -14.7%      35347 ± 19%  softirqs.CPU87.SCHED
 1.935e+10            -2.0%  1.895e+10        perf-stat.i.branch-instructions
      0.61            +2.3%       0.62        perf-stat.i.cpi
 1.494e+10            -2.9%  1.451e+10        perf-stat.i.dTLB-stores
 9.271e+10            -1.1%   9.17e+10        perf-stat.i.instructions
      1.64            -2.2%       1.61        perf-stat.i.ipc
    320.23            -1.4%     315.65        perf-stat.i.metric.M/sec
      0.61            +2.3%       0.62        perf-stat.overall.cpi
      1.65            -2.2%       1.61        perf-stat.overall.ipc
    601140           +10.9%     666775        perf-stat.overall.path-length
 1.928e+10            -2.0%  1.889e+10        perf-stat.ps.branch-instructions
 1.489e+10            -2.9%  1.446e+10        perf-stat.ps.dTLB-stores
  9.24e+10            -1.1%  9.139e+10        perf-stat.ps.instructions
 2.802e+13            -1.3%  2.766e+13        perf-stat.total.instructions
      0.01 ± 25%    +188.2%       0.02 ± 57%  perf-sched.sch_delay.avg.ms.do_syslog.part.0.kmsg_read.vfs_read
      0.01 ± 15%     -46.6%       0.01 ± 42%  perf-sched.sch_delay.avg.ms.schedule_timeout.wait_for_completion.__flush_work.lru_add_drain_all
      0.01 ± 22%    +324.4%       0.05 ± 67%  perf-sched.sch_delay.max.ms.do_syslog.part.0.kmsg_read.vfs_read
      0.01 ± 15%     -43.1%       0.01 ± 41%  perf-sched.sch_delay.max.ms.schedule_timeout.wait_for_completion.__flush_work.lru_add_drain_all
      0.03 ± 23%     -78.0%       0.01 ±173%  perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_prepare.syscall_exit_to_user_mode.entry_SYSCALL_64_after_hwframe.[unknown]
    605.16 ±  7%     +13.3%     685.54 ±  5%  perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_sys_poll
      4.35 ± 10%     +19.2%       5.19 ±  4%  perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_kthread.kthread.ret_from_fork
     54.50 ±  9%     -18.8%      44.25 ±  5%  perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_sys_poll
      2295 ± 10%     -17.2%       1900 ±  4%  perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_kthread.kthread.ret_from_fork
      0.43 ±143%     -92.6%       0.03 ±173%  perf-sched.wait_and_delay.max.ms.exit_to_user_mode_prepare.syscall_exit_to_user_mode.entry_SYSCALL_64_after_hwframe.[unknown]
     85.77 ± 63%    +111.9%     181.78 ± 16%  perf-sched.wait_and_delay.max.ms.schedule_timeout.rcu_gp_kthread.kthread.ret_from_fork
      0.03 ± 23%     -25.0%       0.02 ± 11%  perf-sched.wait_time.avg.ms.exit_to_user_mode_prepare.syscall_exit_to_user_mode.entry_SYSCALL_64_after_hwframe.[unknown]
    605.15 ±  7%     +13.3%     685.54 ±  5%  perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_sys_poll
      4.34 ± 10%     +19.1%       5.17 ±  4%  perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_kthread.kthread.ret_from_fork
      4.24 ± 10%     +64.4%       6.97 ± 49%  perf-sched.wait_time.max.ms.rcu_gp_kthread.kthread.ret_from_fork
     85.73 ± 63%    +112.0%     181.73 ± 16%  perf-sched.wait_time.max.ms.schedule_timeout.rcu_gp_kthread.kthread.ret_from_fork
      8753           -54.6%       3974 ± 70%  interrupts.CPU101.NMI:Non-maskable_interrupts
      8753           -54.6%       3974 ± 70%  interrupts.CPU101.PMI:Performance_monitoring_interrupts
      1.75 ± 47%   +8342.9%     147.75 ±168%  interrupts.CPU137.RES:Rescheduling_interrupts
    112.75 ±  8%     +40.1%     158.00 ± 19%  interrupts.CPU145.NMI:Non-maskable_interrupts
    112.75 ±  8%     +40.1%     158.00 ± 19%  interrupts.CPU145.PMI:Performance_monitoring_interrupts
      1251 ± 31%    +151.4%       3145 ± 43%  interrupts.CPU149.CAL:Function_call_interrupts
    117.50 ±  7%     +27.7%     150.00 ±  9%  interrupts.CPU159.NMI:Non-maskable_interrupts
    117.50 ±  7%     +27.7%     150.00 ±  9%  interrupts.CPU159.PMI:Performance_monitoring_interrupts
    115.25 ±  9%     -26.7%      84.50 ± 20%  interrupts.CPU161.NMI:Non-maskable_interrupts
    115.25 ±  9%     -26.7%      84.50 ± 20%  interrupts.CPU161.PMI:Performance_monitoring_interrupts
      8756           -50.5%       4334 ± 58%  interrupts.CPU2.NMI:Non-maskable_interrupts
      8756           -50.5%       4334 ± 58%  interrupts.CPU2.PMI:Performance_monitoring_interrupts
    113.75 ±  8%     +26.6%     144.00 ±  8%  interrupts.CPU49.NMI:Non-maskable_interrupts
    113.75 ±  8%     +26.6%     144.00 ±  8%  interrupts.CPU49.PMI:Performance_monitoring_interrupts
     98.75 ± 22%     +44.3%     142.50 ± 19%  interrupts.CPU66.NMI:Non-maskable_interrupts
     98.75 ± 22%     +44.3%     142.50 ± 19%  interrupts.CPU66.PMI:Performance_monitoring_interrupts
      1.50 ±110%   +4266.7%      65.50 ±129%  interrupts.CPU98.RES:Rescheduling_interrupts
    228023 ±  7%     -16.3%     190922 ±  7%  interrupts.NMI:Non-maskable_interrupts
    228023 ±  7%     -16.3%     190922 ±  7%  interrupts.PMI:Performance_monitoring_interrupts
      0.66 ± 31%      +0.2        0.90 ± 30%  perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt
      0.87 ±  9%      +0.3        1.18 ±  3%  perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.brk
      1.06 ± 16%      +0.4        1.42 ± 21%  perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
      1.08 ± 16%      +0.4        1.46 ± 22%  perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
      1.09 ± 16%      +0.4        1.47 ± 23%  perf-profile.calltrace.cycles-pp.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
      0.00            +0.6        0.58 ±  3%  perf-profile.calltrace.cycles-pp.___might_sleep.kmem_cache_alloc.userfaultfd_unmap_complete.__x64_sys_brk.do_syscall_64
      0.00            +1.7        1.67 ±  3%  perf-profile.calltrace.cycles-pp.memset_erms.kmem_cache_alloc.userfaultfd_unmap_complete.__x64_sys_brk.do_syscall_64
      0.00            +1.8        1.79 ±  4%  perf-profile.calltrace.cycles-pp.kmem_cache_free.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
      0.00            +4.5        4.46 ±  5%  perf-profile.calltrace.cycles-pp.kmem_cache_alloc.userfaultfd_unmap_complete.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
      0.00            +5.0        4.96 ±  4%  perf-profile.calltrace.cycles-pp.userfaultfd_unmap_complete.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
     47.85 ±  9%      +7.2       55.00 ±  3%  perf-profile.calltrace.cycles-pp.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
     49.25 ±  9%      +7.4       56.63 ±  3%  perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
     51.01 ±  9%      +7.5       58.48 ±  3%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.brk
      0.44 ± 11%      -0.2        0.27 ±  4%  perf-profile.children.cycles-pp.cap_capable
      0.05 ±  8%      +0.0        0.07 ±  5%  perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
      0.08            +0.0        0.10 ± 10%  perf-profile.children.cycles-pp.sched_clock
      0.08 ±  6%      +0.0        0.10 ± 10%  perf-profile.children.cycles-pp.native_sched_clock
      0.09 ±  4%      +0.0        0.11 ± 17%  perf-profile.children.cycles-pp.read_tsc
      0.10 ± 14%      +0.0        0.13 ±  8%  perf-profile.children.cycles-pp.lapic_next_deadline
      0.09            +0.0        0.12 ± 10%  perf-profile.children.cycles-pp.sched_clock_cpu
      0.04 ± 57%      +0.0        0.07 ± 17%  perf-profile.children.cycles-pp.get_next_timer_interrupt
      0.00            +0.1        0.05 ±  9%  perf-profile.children.cycles-pp.memset
      0.04 ±115%      +0.1        0.10 ± 31%  perf-profile.children.cycles-pp.tick_nohz_irq_exit
      0.26 ± 18%      +0.1        0.33 ± 11%  perf-profile.children.cycles-pp.clockevents_program_event
      0.04 ± 58%      +0.1        0.16 ±  2%  perf-profile.children.cycles-pp.should_failslab
      0.14 ± 42%      +0.1        0.28 ± 19%  perf-profile.children.cycles-pp.tick_nohz_next_event
      0.21 ± 31%      +0.2        0.36 ±  9%  perf-profile.children.cycles-pp.tick_nohz_get_sleep_length
      0.54 ± 21%      +0.2        0.72 ± 17%  perf-profile.children.cycles-pp.update_process_times
      0.54 ± 10%      +0.2        0.72 ±  4%  perf-profile.children.cycles-pp.rcu_all_qs
      0.65 ± 20%      +0.2        0.84 ± 17%  perf-profile.children.cycles-pp.tick_sched_timer
      0.56 ± 24%      +0.2        0.76 ± 20%  perf-profile.children.cycles-pp.tick_sched_handle
      0.93 ± 23%      +0.3        1.20 ± 22%  perf-profile.children.cycles-pp.__hrtimer_run_queues
      0.87 ± 10%      +0.3        1.15 ±  2%  perf-profile.children.cycles-pp.__might_sleep
      1.09 ± 11%      +0.4        1.46 ±  5%  perf-profile.children.cycles-pp._cond_resched
      1.39 ± 13%      +0.4        1.79 ± 16%  perf-profile.children.cycles-pp.hrtimer_interrupt
      1.43 ± 13%      +0.4        1.83 ± 17%  perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
      1.68 ± 13%      +0.5        2.15 ± 19%  perf-profile.children.cycles-pp.asm_call_sysvec_on_stack
      1.94 ± 10%      +0.6        2.54 ±  3%  perf-profile.children.cycles-pp.___might_sleep
      0.00            +1.7        1.67 ±  3%  perf-profile.children.cycles-pp.memset_erms
      4.88 ±  8%      +1.7        6.63 ±  4%  perf-profile.children.cycles-pp.kmem_cache_free
      6.56 ± 10%      +4.6       11.13 ±  3%  perf-profile.children.cycles-pp.kmem_cache_alloc
      0.37 ±  9%      +4.6        4.99 ±  4%  perf-profile.children.cycles-pp.userfaultfd_unmap_complete
     48.02 ±  9%      +7.1       55.14 ±  3%  perf-profile.children.cycles-pp.__x64_sys_brk
     49.49 ±  9%      +7.3       56.81 ±  3%  perf-profile.children.cycles-pp.do_syscall_64
     51.22 ±  9%      +7.4       58.66 ±  3%  perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
      0.42 ± 11%      -0.2        0.24 ±  6%  perf-profile.self.cycles-pp.cap_capable
      0.07 ±  5%      +0.0        0.09 ± 14%  perf-profile.self.cycles-pp.native_sched_clock
      0.04 ± 57%      +0.0        0.07 ±  7%  perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
      0.10 ± 14%      +0.0        0.13 ±  8%  perf-profile.self.cycles-pp.lapic_next_deadline
      0.00            +0.1        0.05 ±  9%  perf-profile.self.cycles-pp.memset
      0.01 ±173%      +0.1        0.08 ± 23%  perf-profile.self.cycles-pp.tick_nohz_next_event
      0.34 ± 10%      +0.1        0.41 ±  6%  perf-profile.self.cycles-pp.userfaultfd_unmap_complete
      0.00            +0.1        0.08 ±  5%  perf-profile.self.cycles-pp.should_failslab
      0.40 ±  9%      +0.1        0.48 ±  8%  perf-profile.self.cycles-pp.syscall_exit_to_user_mode
      0.37 ± 12%      +0.1        0.49 ±  5%  perf-profile.self.cycles-pp.rcu_all_qs
      0.53 ± 11%      +0.2        0.70 ±  3%  perf-profile.self.cycles-pp._cond_resched
      0.21 ±  8%      +0.2        0.44 ±  6%  perf-profile.self.cycles-pp.do_syscall_64
      0.46 ±  8%      +0.2        0.70 ±  6%  perf-profile.self.cycles-pp.cap_vm_enough_memory
      0.81 ± 10%      +0.3        1.09 ±  2%  perf-profile.self.cycles-pp.__might_sleep
      1.88 ± 10%      +0.6        2.46 ±  3%  perf-profile.self.cycles-pp.___might_sleep
      0.00            +1.6        1.61 ±  3%  perf-profile.self.cycles-pp.memset_erms
      3.19 ± 10%      +1.7        4.86 ±  6%  perf-profile.self.cycles-pp.kmem_cache_alloc
      3.31 ±  7%      +1.7        5.05 ±  4%  perf-profile.self.cycles-pp.kmem_cache_free





Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.


Thanks,
Oliver Sang


[-- Attachment #2: config-5.10.0-rc1-00026-gfec92278217b --]
[-- Type: text/plain, Size: 170398 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 5.10.0-rc1 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc-9 (Debian 9.3.0-15) 9.3.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=90300
CONFIG_LD_VERSION=235000000
CONFIG_CLANG_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_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_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

#
# 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_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y

#
# 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_RCU=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_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_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_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_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_BPF=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_PRINTK_NMI=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_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
# CONFIG_BPF_LSM is not set
CONFIG_BPF_SYSCALL=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
# CONFIG_BPF_PRELOAD is not set
CONFIG_USERFAULTFD=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_RSEQ=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_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_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_FILTER_PGPROT=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DYNAMIC_PHYSICAL_MASK=y
CONFIG_PGTABLE_LEVELS=5
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
CONFIG_ZONE_DMA=y
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=y
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=y
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=y
# CONFIG_XEN_PV is not set
CONFIG_XEN_PVHVM=y
CONFIG_XEN_PVHVM_SMP=y
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
# CONFIG_XEN_PVH 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_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=y
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m
CONFIG_X86_THERMAL_VECTOR=y

#
# 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=m
# 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=y
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=y
# CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT is not set
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
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_X86_RESERVE_LOW=64
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_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_HAVE_LIVEPATCH=y
CONFIG_LIVEPATCH=y
# end of Processor type and features

CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=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_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_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=y
# 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_PMIC_OPREGION=y
CONFIG_X86_PM_TIMER=y
CONFIG_SFI=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_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE 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_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_X86_POWERNOW_K8=m
CONFIG_X86_AMD_FREQ_SENSITIVITY=m
# 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_PCI_XEN=y
CONFIG_MMCONF_FAM10H=y
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# CONFIG_X86_SYSFB is not set
# 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

#
# Firmware Drivers
#
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_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=y
# 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_DEV_PATH_PARSER=y
CONFIG_EFI_EARLYCON=y
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS=y

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

CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=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_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
# CONFIG_KVM_AMD 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_OPROFILE=m
CONFIG_OPROFILE_EVENT_MULTIPLEX=y
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=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_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=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_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_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=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_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_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_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_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

#
# 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 is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_TRIM_UNUSED_KSYMS is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLK_SCSI_REQUEST=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_INTEGRITY_T10=m
CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_DEV_THROTTLING_LOW is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
CONFIG_BLK_WBT=y
# CONFIG_BLK_CGROUP_IOLATENCY is not set
# CONFIG_BLK_CGROUP_IOCOST is not set
CONFIG_BLK_WBT_MQ=y
CONFIG_BLK_DEBUG_FS=y
CONFIG_BLK_DEBUG_FS_ZONED=y
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
# CONFIG_ATARI_PARTITION is not set
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
# CONFIG_LDM_PARTITION is not set
CONFIG_SGI_PARTITION=y
# CONFIG_ULTRIX_PARTITION is not set
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
# end of Partition Types

CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_MQ_RDMA=y
CONFIG_BLK_PM=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_NEED_MULTIPLE_NODES=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_HAVE_BOOTMEM_INFO_NODE=y
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_SPARSE=y
# CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_BOUNCE=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_CLEANCACHE=y
CONFIG_FRONTSWAP=y
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
# CONFIG_CMA_DEBUGFS is not set
CONFIG_CMA_AREAS=19
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_PGTABLE_MAPPING is not set
CONFIG_ZSMALLOC_STAT=y
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_PTE_DEVMAP=y
CONFIG_ZONE_DEVICE=y
CONFIG_DEV_PAGEMAP_OPS=y
CONFIG_HMM_MIRROR=y
CONFIG_DEVICE_PRIVATE=y
CONFIG_VMAP_PFN=y
CONFIG_FRAME_VECTOR=y
CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
CONFIG_ARCH_HAS_PKEYS=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_BENCHMARK is not set
# CONFIG_READ_ONLY_THP_FOR_FS is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_MAPPING_DIRTY_HELPERS=y
# end of Memory Management options

CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=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_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_SMC is not set
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_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_NETLINK=m
CONFIG_NETFILTER_FAMILY_BRIDGE=y
CONFIG_NETFILTER_FAMILY_ARP=y
# 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_COMMON=m
CONFIG_NF_LOG_NETDEV=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_COUNTER=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_NF_FLOW_TABLE is not set
CONFIG_NETFILTER_XTABLES=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

#
# 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_LOG_BRIDGE=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_IB is not set
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_HAVE_NET_DSA=y
# 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_HYPERV_VSOCKETS=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_RPS=y
CONFIG_RFS_ACCEL=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_JIT=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_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=m
CONFIG_BT_BREDR=y
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=m
CONFIG_BT_HS=y
CONFIG_BT_LE=y
# CONFIG_BT_6LOWPAN is not set
# CONFIG_BT_LEDS is not set
# CONFIG_BT_MSFTEXT is not set
CONFIG_BT_DEBUGFS=y
# CONFIG_BT_SELFTEST is not set

#
# Bluetooth device drivers
#
# CONFIG_BT_HCIBTUSB is not set
# CONFIG_BT_HCIBTSDIO is not set
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_ATH3K=y
# CONFIG_BT_HCIUART_INTEL is not set
# CONFIG_BT_HCIUART_AG6XX is not set
# CONFIG_BT_HCIBCM203X is not set
# CONFIG_BT_HCIBPA10X is not set
# CONFIG_BT_HCIBFUSB is not set
CONFIG_BT_HCIVHCI=m
CONFIG_BT_MRVL=m
# CONFIG_BT_MRVL_SDIO is not set
# CONFIG_BT_MTKSDIO is not set
# end of Bluetooth device drivers

# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_STREAM_PARSER=y
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=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=y
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=y
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_WIMAX is not set
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_XEN is not set
# CONFIG_NET_9P_RDMA is not set
# 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_SOCK_MSG=y
CONFIG_NET_DEVLINK=y
CONFIG_PAGE_POOL=y
CONFIG_FAILOVER=m
CONFIG_ETHTOOL_NETLINK=y
CONFIG_HAVE_EBPF_JIT=y

#
# 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_BW 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_XEN_PCIDEV_FRONTEND is not set
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_PCI_HYPERV=m
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
CONFIG_PCI_HYPERV_INTERFACE=m

#
# 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_PCCARD is not set
# CONFIG_RAPIDIO is not set

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
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 is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_KUNIT_DRIVER_PE_TEST=y
CONFIG_SYS_HYPERVISOR=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
# 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_NULL_BLK_FAULT_INJECTION=y
# 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_UMEM is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=0
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_SKD is not set
# 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_XEN_BLKDEV_FRONTEND=m
CONFIG_VIRTIO_BLK=m
CONFIG_BLK_DEV_RBD=m
# CONFIG_BLK_DEV_RSXX is not set

#
# 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_RDMA is not set
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_RDMA is not set
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_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
CONFIG_MISC_RTSX=m
CONFIG_PVPANIC=y
# 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_VIRTIO is not set
# CONFIG_INTEL_MEI_HDCP is not set
CONFIG_VMWARE_VMCI=m

#
# Intel MIC & related support
#
# CONFIG_INTEL_MIC_BUS is not set
# CONFIG_SCIF_BUS is not set
# CONFIG_VOP_BUS is not set
# end of Intel MIC & related support

# CONFIG_GENWQE is not set
# CONFIG_ECHO 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
# end of Misc devices

CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
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_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_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_XEN_SCSI_FRONTEND is not set
CONFIG_HYPERV_STORAGE=m
# 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_GDTH 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_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
CONFIG_SCSI_DEBUG=m
# 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=m
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_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_ZONED is not set
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=m
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_MACSEC is not set
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
# CONFIG_TUN_VNET_CROSS_LE is not set
CONFIG_VETH=m
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

#
# Distributed Switch Architecture drivers
#
# end of Distributed Switch Architecture drivers

CONFIG_ETHERNET=y
CONFIG_MDIO=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON 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=y
# CONFIG_AMD8111_ETH is not set
# CONFIG_PCNET32 is not set
# CONFIG_AMD_XGBE is not set
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_AQTION is not set
CONFIG_NET_VENDOR_ARC=y
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_AURORA 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_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_EZCHIP=y
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 is not set
# CONFIG_JME is not set
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_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_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_LED_TRIGGER_PHY is not set
# CONFIG_FIXED_PHY is not set

#
# 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 is not set
# 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_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_NATIONAL_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_MDIO_DEVRES=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_MSCC_MIIM 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=m
# CONFIG_USB_LAN78XX is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_IPHETH 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_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
# CONFIG_PRISM54 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=y
# CONFIG_MT7601U is not set
# CONFIG_MT76x0U is not set
# CONFIG_MT76x0E is not set
# CONFIG_MT76x2E is not set
# CONFIG_MT76x2U is not set
# CONFIG_MT7603E is not set
# CONFIG_MT7615E is not set
# CONFIG_MT7663U is not set
# CONFIG_MT7663S is not set
# CONFIG_MT7915E 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_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=m
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_VIRT_WIFI is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# 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
CONFIG_XEN_NETDEV_FRONTEND=y
# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_HYPERV_NET is not set
CONFIG_NETDEVSIM=m
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set
# CONFIG_NVM is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_POLLDEV=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_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_F54 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_HYPERV_KEYBOARD=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

#
# 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_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_IFX6X60 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_ROCKETPORT is not set
CONFIG_CYCLADES=m
# CONFIG_CYZ_INTR is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_SYNCLINK=m
CONFIG_SYNCLINKMP=m
CONFIG_SYNCLINK_GT=m
# CONFIG_ISI is not set
CONFIG_N_HDLC=m
CONFIG_N_GSM=m
CONFIG_NOZOMI=m
# CONFIG_NULL_TTY is not set
# CONFIG_TRACE_SINK is not set
CONFIG_HVC_DRIVER=y
CONFIG_HVC_IRQ=y
CONFIG_HVC_XEN=y
CONFIG_HVC_XEN_FRONTEND=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=m
# 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_DEVKMEM is not set
CONFIG_NVRAM=y
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=8192
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_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_XEN is not set
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
# end of Character devices

# CONFIG_RANDOM_TRUST_CPU is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set

#
# 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=m
CONFIG_I2C_AMD756_S4882=m
CONFIG_I2C_AMD8111=m
# 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_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
# 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 is not set
# 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_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=m
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_SX150X is not set
CONFIG_PINCTRL_BAYTRAIL=y
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_LYNXPOINT is not set
CONFIG_PINCTRL_INTEL=y
CONFIG_PINCTRL_BROXTON=m
CONFIG_PINCTRL_CANNONLAKE=m
CONFIG_PINCTRL_CEDARFORK=m
CONFIG_PINCTRL_DENVERTON=m
# CONFIG_PINCTRL_EMMITSBURG is not set
CONFIG_PINCTRL_GEMINILAKE=m
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_JASPERLAKE is not set
CONFIG_PINCTRL_LEWISBURG=m
CONFIG_PINCTRL_SUNRISEPOINT=m
# CONFIG_PINCTRL_TIGERLAKE is not set

#
# 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_SYSFS=y
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y
CONFIG_GPIO_GENERIC=m

#
# Memory mapped GPIO drivers
#
CONFIG_GPIO_AMDPT=m
# 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_XILINX 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

# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_MOCKUP is not set
# 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_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_SMB347=m
# CONFIG_BATTERY_GAUGE_LTC2941 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_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_AMD_ENERGY is not set
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_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_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_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_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_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_NTC_THERMISTOR=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_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_IBM_CFFPS is not set
# CONFIG_SENSORS_INSPUR_IPSPS is not set
# CONFIG_SENSORS_IR35221 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_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_MP2975 is not set
# CONFIG_SENSORS_PXE1610 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_SHT15=m
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x 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_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_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_PKG_TEMP_THERMAL=m
CONFIG_INTEL_SOC_DTS_IOSF_CORE=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
CONFIG_INT340X_THERMAL=m
CONFIG_ACPI_THERMAL_REL=m
# CONFIG_INT3406_THERMAL is not set
CONFIG_PROC_THERMAL_MMIO_RAPL=y
# end of ACPI INT340X thermal drivers

CONFIG_INTEL_PCH_THERMAL=m
# 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

#
# 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=m
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
CONFIG_XEN_WDT=m

#
# 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_INTEL_SOC_PMIC_CHTDC_TI is not set
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_RT5033 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SL28CPLD is not set
CONFIG_MFD_SM501=m
CONFIG_MFD_SM501_GPIO=y
# CONFIG_MFD_SKY81452 is not set
# CONFIG_ABX500_CORE 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_MFD_TPS80031 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_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_IR_SIR=m
# CONFIG_RC_XBOX_DVD is not set
# CONFIG_IR_TOY is not set
CONFIG_MEDIA_CEC_SUPPORT=y
# CONFIG_CEC_CH7322 is not set
# CONFIG_CEC_SECO is not set
# CONFIG_USB_PULSE8_CEC is not set
# CONFIG_USB_RAINSHADOW_CEC is not set
CONFIG_MEDIA_SUPPORT=m
# CONFIG_MEDIA_SUPPORT_FILTER is not set
# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set

#
# Media device types
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
CONFIG_MEDIA_RADIO_SUPPORT=y
CONFIG_MEDIA_SDR_SUPPORT=y
CONFIG_MEDIA_PLATFORM_SUPPORT=y
CONFIG_MEDIA_TEST_SUPPORT=y
# end of Media device types

#
# Media core support
#
CONFIG_VIDEO_DEV=m
CONFIG_MEDIA_CONTROLLER=y
CONFIG_DVB_CORE=m
# end of Media core support

#
# Video4Linux options
#
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEO_V4L2_I2C=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
# end of Video4Linux options

#
# Media controller options
#
# CONFIG_MEDIA_CONTROLLER_DVB is not set
# end of Media controller options

#
# Digital TV options
#
# CONFIG_DVB_MMAP is not set
CONFIG_DVB_NET=y
CONFIG_DVB_MAX_ADAPTERS=16
CONFIG_DVB_DYNAMIC_MINORS=y
# CONFIG_DVB_DEMUX_SECTION_LOSS_LOG is not set
# CONFIG_DVB_ULE_DEBUG is not set
# end of Digital TV options

#
# Media drivers
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
CONFIG_RADIO_ADAPTERS=y
# CONFIG_RADIO_SI470X is not set
# CONFIG_RADIO_SI4713 is not set
# CONFIG_USB_MR800 is not set
# CONFIG_USB_DSBR is not set
# CONFIG_RADIO_MAXIRADIO is not set
# CONFIG_RADIO_SHARK is not set
# CONFIG_RADIO_SHARK2 is not set
# CONFIG_USB_KEENE is not set
# CONFIG_USB_RAREMONO is not set
# CONFIG_USB_MA901 is not set
# CONFIG_RADIO_TEA5764 is not set
# CONFIG_RADIO_SAA7706H is not set
# CONFIG_RADIO_TEF6862 is not set
# CONFIG_RADIO_WL1273 is not set
CONFIG_VIDEOBUF2_CORE=m
CONFIG_VIDEOBUF2_V4L2=m
CONFIG_VIDEOBUF2_MEMOPS=m
CONFIG_VIDEOBUF2_VMALLOC=m
# CONFIG_V4L_PLATFORM_DRIVERS is not set
# CONFIG_V4L_MEM2MEM_DRIVERS is not set
# CONFIG_DVB_PLATFORM_DRIVERS is not set
# CONFIG_SDR_PLATFORM_DRIVERS is not set

#
# MMC/SDIO DVB adapters
#
# CONFIG_SMS_SDIO_DRV is not set
# CONFIG_V4L_TEST_DRIVERS is not set
# CONFIG_DVB_TEST_DRIVERS is not set

#
# FireWire (IEEE 1394) Adapters
#
# CONFIG_DVB_FIREDTV is not set
# end of Media drivers

#
# Media ancillary drivers
#
CONFIG_MEDIA_ATTACH=y
CONFIG_VIDEO_IR_I2C=m

#
# Audio decoders, processors and mixers
#
# CONFIG_VIDEO_TVAUDIO is not set
# CONFIG_VIDEO_TDA7432 is not set
# CONFIG_VIDEO_TDA9840 is not set
# CONFIG_VIDEO_TEA6415C is not set
# CONFIG_VIDEO_TEA6420 is not set
# CONFIG_VIDEO_MSP3400 is not set
# CONFIG_VIDEO_CS3308 is not set
# CONFIG_VIDEO_CS5345 is not set
# CONFIG_VIDEO_CS53L32A is not set
# CONFIG_VIDEO_TLV320AIC23B is not set
# CONFIG_VIDEO_UDA1342 is not set
# CONFIG_VIDEO_WM8775 is not set
# CONFIG_VIDEO_WM8739 is not set
# CONFIG_VIDEO_VP27SMPX is not set
# CONFIG_VIDEO_SONY_BTF_MPX is not set
# end of Audio decoders, processors and mixers

#
# RDS decoders
#
# CONFIG_VIDEO_SAA6588 is not set
# end of RDS decoders

#
# Video decoders
#
# CONFIG_VIDEO_ADV7180 is not set
# CONFIG_VIDEO_ADV7183 is not set
# CONFIG_VIDEO_ADV7604 is not set
# CONFIG_VIDEO_ADV7842 is not set
# CONFIG_VIDEO_BT819 is not set
# CONFIG_VIDEO_BT856 is not set
# CONFIG_VIDEO_BT866 is not set
# CONFIG_VIDEO_KS0127 is not set
# CONFIG_VIDEO_ML86V7667 is not set
# CONFIG_VIDEO_SAA7110 is not set
# CONFIG_VIDEO_SAA711X is not set
# CONFIG_VIDEO_TC358743 is not set
# CONFIG_VIDEO_TVP514X is not set
# CONFIG_VIDEO_TVP5150 is not set
# CONFIG_VIDEO_TVP7002 is not set
# CONFIG_VIDEO_TW2804 is not set
# CONFIG_VIDEO_TW9903 is not set
# CONFIG_VIDEO_TW9906 is not set
# CONFIG_VIDEO_TW9910 is not set
# CONFIG_VIDEO_VPX3220 is not set

#
# Video and audio decoders
#
# CONFIG_VIDEO_SAA717X is not set
# CONFIG_VIDEO_CX25840 is not set
# end of Video decoders

#
# Video encoders
#
# CONFIG_VIDEO_SAA7127 is not set
# CONFIG_VIDEO_SAA7185 is not set
# CONFIG_VIDEO_ADV7170 is not set
# CONFIG_VIDEO_ADV7175 is not set
# CONFIG_VIDEO_ADV7343 is not set
# CONFIG_VIDEO_ADV7393 is not set
# CONFIG_VIDEO_ADV7511 is not set
# CONFIG_VIDEO_AD9389B is not set
# CONFIG_VIDEO_AK881X is not set
# CONFIG_VIDEO_THS8200 is not set
# end of Video encoders

#
# Video improvement chips
#
# CONFIG_VIDEO_UPD64031A is not set
# CONFIG_VIDEO_UPD64083 is not set
# end of Video improvement chips

#
# Audio/Video compression chips
#
# CONFIG_VIDEO_SAA6752HS is not set
# end of Audio/Video compression chips

#
# SDR tuner chips
#
# CONFIG_SDR_MAX2175 is not set
# end of SDR tuner chips

#
# Miscellaneous helper chips
#
# CONFIG_VIDEO_THS7303 is not set
# CONFIG_VIDEO_M52790 is not set
# CONFIG_VIDEO_I2C is not set
# CONFIG_VIDEO_ST_MIPID02 is not set
# end of Miscellaneous helper chips

#
# Camera sensor devices
#
# CONFIG_VIDEO_HI556 is not set
# CONFIG_VIDEO_IMX214 is not set
# CONFIG_VIDEO_IMX219 is not set
# CONFIG_VIDEO_IMX258 is not set
# CONFIG_VIDEO_IMX274 is not set
# CONFIG_VIDEO_IMX290 is not set
# CONFIG_VIDEO_IMX319 is not set
# CONFIG_VIDEO_IMX355 is not set
# CONFIG_VIDEO_OV2640 is not set
# CONFIG_VIDEO_OV2659 is not set
# CONFIG_VIDEO_OV2680 is not set
# CONFIG_VIDEO_OV2685 is not set
# CONFIG_VIDEO_OV2740 is not set
# CONFIG_VIDEO_OV5647 is not set
# CONFIG_VIDEO_OV6650 is not set
# CONFIG_VIDEO_OV5670 is not set
# CONFIG_VIDEO_OV5675 is not set
# CONFIG_VIDEO_OV5695 is not set
# CONFIG_VIDEO_OV7251 is not set
# CONFIG_VIDEO_OV772X is not set
# CONFIG_VIDEO_OV7640 is not set
# CONFIG_VIDEO_OV7670 is not set
# CONFIG_VIDEO_OV7740 is not set
# CONFIG_VIDEO_OV8856 is not set
# CONFIG_VIDEO_OV9640 is not set
# CONFIG_VIDEO_OV9650 is not set
# CONFIG_VIDEO_OV13858 is not set
# CONFIG_VIDEO_VS6624 is not set
# CONFIG_VIDEO_MT9M001 is not set
# CONFIG_VIDEO_MT9M032 is not set
# CONFIG_VIDEO_MT9M111 is not set
# CONFIG_VIDEO_MT9P031 is not set
# CONFIG_VIDEO_MT9T001 is not set
# CONFIG_VIDEO_MT9T112 is not set
# CONFIG_VIDEO_MT9V011 is not set
# CONFIG_VIDEO_MT9V032 is not set
# CONFIG_VIDEO_MT9V111 is not set
# CONFIG_VIDEO_SR030PC30 is not set
# CONFIG_VIDEO_NOON010PC30 is not set
# CONFIG_VIDEO_M5MOLS is not set
# CONFIG_VIDEO_RDACM20 is not set
# CONFIG_VIDEO_RJ54N1 is not set
# CONFIG_VIDEO_S5K6AA is not set
# CONFIG_VIDEO_S5K6A3 is not set
# CONFIG_VIDEO_S5K4ECGX is not set
# CONFIG_VIDEO_S5K5BAF is not set
# CONFIG_VIDEO_SMIAPP is not set
# CONFIG_VIDEO_ET8EK8 is not set
# CONFIG_VIDEO_S5C73M3 is not set
# end of Camera sensor devices

#
# Lens drivers
#
# CONFIG_VIDEO_AD5820 is not set
# CONFIG_VIDEO_AK7375 is not set
# CONFIG_VIDEO_DW9714 is not set
# CONFIG_VIDEO_DW9768 is not set
# CONFIG_VIDEO_DW9807_VCM is not set
# end of Lens drivers

#
# Flash devices
#
# CONFIG_VIDEO_ADP1653 is not set
# CONFIG_VIDEO_LM3560 is not set
# CONFIG_VIDEO_LM3646 is not set
# end of Flash devices

#
# SPI helper chips
#
# CONFIG_VIDEO_GS1662 is not set
# end of SPI helper chips

#
# Media SPI Adapters
#
CONFIG_CXD2880_SPI_DRV=m
# end of Media SPI Adapters

CONFIG_MEDIA_TUNER=m

#
# Customize TV tuners
#
CONFIG_MEDIA_TUNER_SIMPLE=m
CONFIG_MEDIA_TUNER_TDA18250=m
CONFIG_MEDIA_TUNER_TDA8290=m
CONFIG_MEDIA_TUNER_TDA827X=m
CONFIG_MEDIA_TUNER_TDA18271=m
CONFIG_MEDIA_TUNER_TDA9887=m
CONFIG_MEDIA_TUNER_TEA5761=m
CONFIG_MEDIA_TUNER_TEA5767=m
CONFIG_MEDIA_TUNER_MSI001=m
CONFIG_MEDIA_TUNER_MT20XX=m
CONFIG_MEDIA_TUNER_MT2060=m
CONFIG_MEDIA_TUNER_MT2063=m
CONFIG_MEDIA_TUNER_MT2266=m
CONFIG_MEDIA_TUNER_MT2131=m
CONFIG_MEDIA_TUNER_QT1010=m
CONFIG_MEDIA_TUNER_XC2028=m
CONFIG_MEDIA_TUNER_XC5000=m
CONFIG_MEDIA_TUNER_XC4000=m
CONFIG_MEDIA_TUNER_MXL5005S=m
CONFIG_MEDIA_TUNER_MXL5007T=m
CONFIG_MEDIA_TUNER_MC44S803=m
CONFIG_MEDIA_TUNER_MAX2165=m
CONFIG_MEDIA_TUNER_TDA18218=m
CONFIG_MEDIA_TUNER_FC0011=m
CONFIG_MEDIA_TUNER_FC0012=m
CONFIG_MEDIA_TUNER_FC0013=m
CONFIG_MEDIA_TUNER_TDA18212=m
CONFIG_MEDIA_TUNER_E4000=m
CONFIG_MEDIA_TUNER_FC2580=m
CONFIG_MEDIA_TUNER_M88RS6000T=m
CONFIG_MEDIA_TUNER_TUA9001=m
CONFIG_MEDIA_TUNER_SI2157=m
CONFIG_MEDIA_TUNER_IT913X=m
CONFIG_MEDIA_TUNER_R820T=m
CONFIG_MEDIA_TUNER_MXL301RF=m
CONFIG_MEDIA_TUNER_QM1D1C0042=m
CONFIG_MEDIA_TUNER_QM1D1B0004=m
# end of Customize TV tuners

#
# Customise DVB Frontends
#

#
# Multistandard (satellite) frontends
#
CONFIG_DVB_STB0899=m
CONFIG_DVB_STB6100=m
CONFIG_DVB_STV090x=m
CONFIG_DVB_STV0910=m
CONFIG_DVB_STV6110x=m
CONFIG_DVB_STV6111=m
CONFIG_DVB_MXL5XX=m
CONFIG_DVB_M88DS3103=m

#
# Multistandard (cable + terrestrial) frontends
#
CONFIG_DVB_DRXK=m
CONFIG_DVB_TDA18271C2DD=m
CONFIG_DVB_SI2165=m
CONFIG_DVB_MN88472=m
CONFIG_DVB_MN88473=m

#
# DVB-S (satellite) frontends
#
CONFIG_DVB_CX24110=m
CONFIG_DVB_CX24123=m
CONFIG_DVB_MT312=m
CONFIG_DVB_ZL10036=m
CONFIG_DVB_ZL10039=m
CONFIG_DVB_S5H1420=m
CONFIG_DVB_STV0288=m
CONFIG_DVB_STB6000=m
CONFIG_DVB_STV0299=m
CONFIG_DVB_STV6110=m
CONFIG_DVB_STV0900=m
CONFIG_DVB_TDA8083=m
CONFIG_DVB_TDA10086=m
CONFIG_DVB_TDA8261=m
CONFIG_DVB_VES1X93=m
CONFIG_DVB_TUNER_ITD1000=m
CONFIG_DVB_TUNER_CX24113=m
CONFIG_DVB_TDA826X=m
CONFIG_DVB_TUA6100=m
CONFIG_DVB_CX24116=m
CONFIG_DVB_CX24117=m
CONFIG_DVB_CX24120=m
CONFIG_DVB_SI21XX=m
CONFIG_DVB_TS2020=m
CONFIG_DVB_DS3000=m
CONFIG_DVB_MB86A16=m
CONFIG_DVB_TDA10071=m

#
# DVB-T (terrestrial) frontends
#
CONFIG_DVB_SP8870=m
CONFIG_DVB_SP887X=m
CONFIG_DVB_CX22700=m
CONFIG_DVB_CX22702=m
CONFIG_DVB_S5H1432=m
CONFIG_DVB_DRXD=m
CONFIG_DVB_L64781=m
CONFIG_DVB_TDA1004X=m
CONFIG_DVB_NXT6000=m
CONFIG_DVB_MT352=m
CONFIG_DVB_ZL10353=m
CONFIG_DVB_DIB3000MB=m
CONFIG_DVB_DIB3000MC=m
CONFIG_DVB_DIB7000M=m
CONFIG_DVB_DIB7000P=m
CONFIG_DVB_DIB9000=m
CONFIG_DVB_TDA10048=m
CONFIG_DVB_AF9013=m
CONFIG_DVB_EC100=m
CONFIG_DVB_STV0367=m
CONFIG_DVB_CXD2820R=m
CONFIG_DVB_CXD2841ER=m
CONFIG_DVB_RTL2830=m
CONFIG_DVB_RTL2832=m
CONFIG_DVB_RTL2832_SDR=m
CONFIG_DVB_SI2168=m
CONFIG_DVB_ZD1301_DEMOD=m
CONFIG_DVB_CXD2880=m

#
# DVB-C (cable) frontends
#
CONFIG_DVB_VES1820=m
CONFIG_DVB_TDA10021=m
CONFIG_DVB_TDA10023=m
CONFIG_DVB_STV0297=m

#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
#
CONFIG_DVB_NXT200X=m
CONFIG_DVB_OR51211=m
CONFIG_DVB_OR51132=m
CONFIG_DVB_BCM3510=m
CONFIG_DVB_LGDT330X=m
CONFIG_DVB_LGDT3305=m
CONFIG_DVB_LGDT3306A=m
CONFIG_DVB_LG2160=m
CONFIG_DVB_S5H1409=m
CONFIG_DVB_AU8522=m
CONFIG_DVB_AU8522_DTV=m
CONFIG_DVB_AU8522_V4L=m
CONFIG_DVB_S5H1411=m

#
# ISDB-T (terrestrial) frontends
#
CONFIG_DVB_S921=m
CONFIG_DVB_DIB8000=m
CONFIG_DVB_MB86A20S=m

#
# ISDB-S (satellite) & ISDB-T (terrestrial) frontends
#
CONFIG_DVB_TC90522=m
CONFIG_DVB_MN88443X=m

#
# Digital terrestrial only tuners/PLL
#
CONFIG_DVB_PLL=m
CONFIG_DVB_TUNER_DIB0070=m
CONFIG_DVB_TUNER_DIB0090=m

#
# SEC control devices for DVB-S
#
CONFIG_DVB_DRX39XYJ=m
CONFIG_DVB_LNBH25=m
CONFIG_DVB_LNBH29=m
CONFIG_DVB_LNBP21=m
CONFIG_DVB_LNBP22=m
CONFIG_DVB_ISL6405=m
CONFIG_DVB_ISL6421=m
CONFIG_DVB_ISL6423=m
CONFIG_DVB_A8293=m
CONFIG_DVB_LGS8GL5=m
CONFIG_DVB_LGS8GXX=m
CONFIG_DVB_ATBM8830=m
CONFIG_DVB_TDA665x=m
CONFIG_DVB_IX2505V=m
CONFIG_DVB_M88RS2000=m
CONFIG_DVB_AF9033=m
CONFIG_DVB_HORUS3A=m
CONFIG_DVB_ASCOT2E=m
CONFIG_DVB_HELENE=m

#
# Common Interface (EN50221) controller drivers
#
CONFIG_DVB_CXD2099=m
CONFIG_DVB_SP2=m
# end of Customise DVB Frontends

#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
# 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 is not set
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_KMS_FB_HELPER=y
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_TTM_DMA_PAGE_POOL=y
CONFIG_DRM_VRAM_HELPER=m
CONFIG_DRM_TTM_HELPER=m
CONFIG_DRM_GEM_SHMEM_HELPER=y

#
# 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=m
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=m
CONFIG_DRM_VMWGFX_FBCON=y
CONFIG_DRM_GMA500=m
CONFIG_DRM_GMA600=y
CONFIG_DRM_GMA3600=y
# CONFIG_DRM_UDL is not set
CONFIG_DRM_AST=m
CONFIG_DRM_MGAG200=m
CONFIG_DRM_QXL=m
CONFIG_DRM_BOCHS=m
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN 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_CIRRUS_QEMU=m
# CONFIG_DRM_GM12U320 is not set
# CONFIG_TINYDRM_HX8357D 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_XEN is not set
# CONFIG_DRM_VBOXVIDEO is not set
# CONFIG_DRM_LEGACY is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=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_XEN_FBDEV_FRONTEND is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
CONFIG_FB_HYPERV=m
# CONFIG_FB_SIMPLE 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_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=m
# 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_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_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_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_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_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_HYPERV_MOUSE=m
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=m
# 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
# 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_CDNS3 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_XIRCOM 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_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_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

#
# 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_ACCESSIBILITY is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ON_DEMAND_PAGING=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS=y
# CONFIG_INFINIBAND_MTHCA is not set
# CONFIG_INFINIBAND_EFA is not set
# CONFIG_INFINIBAND_I40IW is not set
# CONFIG_MLX4_INFINIBAND is not set
# CONFIG_INFINIBAND_OCRDMA is not set
# CONFIG_INFINIBAND_USNIC is not set
# CONFIG_INFINIBAND_BNXT_RE is not set
# CONFIG_INFINIBAND_RDMAVT is not set
CONFIG_RDMA_RXE=m
CONFIG_RDMA_SIW=m
CONFIG_INFINIBAND_IPOIB=m
# CONFIG_INFINIBAND_IPOIB_CM is not set
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=m
CONFIG_INFINIBAND_SRPT=m
# CONFIG_INFINIBAND_ISER is not set
# CONFIG_INFINIBAND_ISERT is not set
# CONFIG_INFINIBAND_RTRS_CLIENT is not set
# CONFIG_INFINIBAND_RTRS_SERVER is not set
# CONFIG_INFINIBAND_OPA_VNIC 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_DECODE_MCE=m
CONFIG_EDAC_GHES=y
CONFIG_EDAC_AMD64=m
# CONFIG_EDAC_AMD64_ERROR_INJECTION is not set
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_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_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_RX6110 is not set
# 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

#
# 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_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_IOATDMA=m
# CONFIG_PLX_DMA is not set
# CONFIG_XILINX_ZYNQMP_DPDMA 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

#
# 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_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS 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_UIO_HV_GENERIC=m
CONFIG_VFIO_IOMMU_TYPE1=m
CONFIG_VFIO_VIRQFD=m
CONFIG_VFIO=m
CONFIG_VFIO_NOIOMMU=y
CONFIG_VFIO_PCI=m
# CONFIG_VFIO_PCI_VGA is not set
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
# CONFIG_VFIO_PCI_IGD is not set
CONFIG_VFIO_MDEV=m
CONFIG_VFIO_MDEV_DEVICE=m
CONFIG_IRQ_BYPASS_MANAGER=m
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=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=m
CONFIG_HYPERV_TIMER=y
CONFIG_HYPERV_UTILS=m
CONFIG_HYPERV_BALLOON=m
# end of Microsoft Hyper-V guest support

#
# Xen driver support
#
# CONFIG_XEN_BALLOON is not set
CONFIG_XEN_DEV_EVTCHN=m
# CONFIG_XEN_BACKEND is not set
CONFIG_XENFS=m
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=y
# CONFIG_XEN_GNTDEV is not set
# CONFIG_XEN_GRANT_DEV_ALLOC is not set
# CONFIG_XEN_GRANT_DMA_ALLOC is not set
CONFIG_SWIOTLB_XEN=y
# CONFIG_XEN_PVCALLS_FRONTEND is not set
CONFIG_XEN_PRIVCMD=m
CONFIG_XEN_EFI=y
CONFIG_XEN_AUTO_XLATE=y
CONFIG_XEN_ACPI=y
# CONFIG_XEN_UNPOPULATED_ALLOC is not set
# end of Xen driver support

# CONFIG_GREYBUS is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACPI_WMI=m
CONFIG_WMI_BMOF=m
# CONFIG_ALIENWARE_WMI is not set
# CONFIG_HUAWEI_WMI is not set
# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
CONFIG_INTEL_WMI_THUNDERBOLT=m
CONFIG_MXM_WMI=m
# CONFIG_PEAQ_WMI is not set
# CONFIG_XIAOMI_WMI is not set
CONFIG_ACERHDF=m
# CONFIG_ACER_WIRELESS is not set
CONFIG_ACER_WMI=m
CONFIG_APPLE_GMUX=m
CONFIG_ASUS_LAPTOP=m
# CONFIG_ASUS_WIRELESS is not set
CONFIG_ASUS_WMI=m
CONFIG_ASUS_NB_WMI=m
CONFIG_EEEPC_LAPTOP=m
CONFIG_EEEPC_WMI=m
CONFIG_DCDBAS=m
CONFIG_DELL_SMBIOS=m
CONFIG_DELL_SMBIOS_WMI=y
# CONFIG_DELL_SMBIOS_SMM is not set
CONFIG_DELL_LAPTOP=m
CONFIG_DELL_RBTN=m
CONFIG_DELL_RBU=m
CONFIG_DELL_SMO8800=m
CONFIG_DELL_WMI=m
CONFIG_DELL_WMI_DESCRIPTOR=m
CONFIG_DELL_WMI_AIO=m
CONFIG_DELL_WMI_LED=m
CONFIG_AMILO_RFKILL=m
CONFIG_FUJITSU_LAPTOP=m
CONFIG_FUJITSU_TABLET=m
# CONFIG_GPD_POCKET_FAN is not set
CONFIG_HP_ACCEL=m
CONFIG_HP_WIRELESS=m
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_INTEL_ATOMISP2_PM is not set
CONFIG_INTEL_HID_EVENT=m
# CONFIG_INTEL_INT0002_VGPIO is not set
# CONFIG_INTEL_MENLOW is not set
CONFIG_INTEL_OAKTRAIL=m
CONFIG_INTEL_VBTN=m
# CONFIG_SURFACE3_WMI is not set
# CONFIG_SURFACE_3_POWER_OPREGION is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
CONFIG_MSI_LAPTOP=m
CONFIG_MSI_WMI=m
# CONFIG_PCENGINES_APU2 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_RST=m
# CONFIG_INTEL_SMARTCONNECT is not set

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

CONFIG_INTEL_TURBO_MAX_3=y
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
CONFIG_INTEL_PMC_CORE=m
# CONFIG_INTEL_PUNIT_IPC is not set
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM 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_HAVE_CLK=y
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# 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_PWM 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_PASSTHROUGH is not set
CONFIG_IOMMU_DMA=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_V2=m
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 is not set
CONFIG_IRQ_REMAP=y
CONFIG_HYPERV_IOMMU=y

#
# 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

#
# Aspeed SoC drivers
#
# end of Aspeed 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

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

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# CONFIG_XILINX_VCU is not set
# 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_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_LPSS=m
CONFIG_PWM_LPSS_PCI=m
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_PCA9685 is not set

#
# IRQ chip support
#
# CONFIG_MST_IRQ is not set
# 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_BCM_KONA_USB2_PHY is not set
# 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_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_DRIVER=y
CONFIG_DAX=y
CONFIG_DEV_DAX=m
CONFIG_DEV_DAX_PMEM=m
CONFIG_DEV_DAX_KMEM=m
CONFIG_DEV_DAX_PMEM_COMPAT=m
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y

#
# 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=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=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=y
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=y
# CONFIG_F2FS_CHECK_FS is not set
# CONFIG_F2FS_IO_TRACE is not set
# CONFIG_F2FS_FAULT_INJECTION is not set
# CONFIG_F2FS_FS_COMPRESSION is not set
# CONFIG_ZONEFS_FS is not set
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_MANDATORY_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_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
CONFIG_CACHEFILES=m
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_HISTOGRAM 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_EXFAT_FS is not set
# CONFIG_NTFS_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_PROC_CPU_RESCTRL=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_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=m
# 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_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_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_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_SUNRPC_XPRT_RDMA=m
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 is not set
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
CONFIG_CIFS_WEAK_PW_HASH=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_SMB_DIRECT is not set
# CONFIG_CIFS_FSCACHE is not set
# 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_INFINIBAND is not set
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_PATH=y
CONFIG_INTEL_TXT=y
CONFIG_LSM_MMAP_MIN_ADDR=65535
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_HARDENED_USERCOPY_FALLBACK=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=y
CONFIG_SECURITY_APPARMOR_HASH=y
CONFIG_SECURITY_APPARMOR_HASH_DEFAULT=y
# CONFIG_SECURITY_APPARMOR_DEBUG is not set
# CONFIG_SECURITY_APPARMOR_KUNIT_TEST 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_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_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_APPARMOR is not set
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_LSM="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=m
CONFIG_CRYPTO_SIMD=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECC=m
CONFIG_CRYPTO_ECDH=m
# 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=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_OFB is not set
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=y
# 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_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=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_TGR192=m
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=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=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_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

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_ARC4=m
# CONFIG_CRYPTO_LIB_BLAKE2S is not set
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
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_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_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=""
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_RAID6_PQ_BENCHMARK=y
# 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_GENERIC_FIND_FIRST_BIT=y
CONFIG_CORDIC=m
# CONFIG_PRIME_NUMBERS is not set
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
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
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_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_ARCH_HAS_FORCE_DMA_UNENCRYPTED=y
CONFIG_DMA_VIRT_OPS=y
CONFIG_SWIOTLB=y
CONFIG_DMA_COHERENT_POOL=y
CONFIG_DMA_CMA=y
# CONFIG_DMA_PERNUMA_CMA is not set

#
# Default contiguous memory area size:
#
CONFIG_CMA_SIZE_MBYTES=200
CONFIG_CMA_SIZE_SEL_MBYTES=y
# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
# CONFIG_CMA_SIZE_SEL_MIN is not set
# CONFIG_CMA_SIZE_SEL_MAX is not set
CONFIG_CMA_ALIGNMENT=8
# CONFIG_DMA_API_DEBUG 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 is not set
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_SIGNATURE=y
CONFIG_DIMLIB=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
# CONFIG_STRING_SELFTEST is not set
# end of Library routines

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
# CONFIG_PRINTK_CALLER 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_DWARF4=y
# CONFIG_GDB_SCRIPTS is not set
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
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

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_OWNER 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
# 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 is not set
# CONFIG_WQ_WATCHDOG is not set
# 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=m
# 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_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_TORTURE_TEST=m
CONFIG_RCU_SCALE_TEST=m
CONFIG_RCU_TORTURE_TEST=m
# 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_DEBUG_BLOCK_EXT_DEVT 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_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=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_FUNCTION_PROFILER=y
CONFIG_STACK_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_HWLAT_TRACER=y
# 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_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_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST 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_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
# CONFIG_IO_STRICT_DEVMEM is not set

#
# x86 Debugging
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
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=y
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 is not set
CONFIG_KUNIT_TEST=m
CONFIG_KUNIT_EXAMPLE_TEST=m
# CONFIG_KUNIT_ALL_TESTS is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
CONFIG_FUNCTION_ERROR_INJECTION=y
CONFIG_FAULT_INJECTION=y
# CONFIG_FAILSLAB is not set
# CONFIG_FAIL_PAGE_ALLOC is not set
# CONFIG_FAULT_INJECTION_USERCOPY is not set
CONFIG_FAIL_MAKE_REQUEST=y
# CONFIG_FAIL_IO_TIMEOUT is not set
# CONFIG_FAIL_FUTEX is not set
CONFIG_FAULT_INJECTION_DEBUG_FS=y
# CONFIG_FAIL_FUNCTION is not set
# CONFIG_FAIL_MMC_REQUEST 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 is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_SORT is not set
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST 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=y
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_STRSCPY is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_OVERFLOW is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_HASH is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_USER_COPY is not set
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 is not set
CONFIG_SYSCTL_KUNIT_TEST=m
CONFIG_LIST_KUNIT_TEST=m
# CONFIG_LINEAR_RANGES_TEST is not set
# CONFIG_BITS_TEST is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_LIVEPATCH is not set
# CONFIG_TEST_STACKINIT is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_HMM is not set
# CONFIG_TEST_FREE_PAGES is not set
# CONFIG_TEST_FPU is not set
# CONFIG_MEMTEST is not set
# CONFIG_HYPERV_TESTING is not set
# end of Kernel Testing and Coverage
# end of Kernel hacking

[-- Attachment #3: job-script --]
[-- Type: text/plain, Size: 7702 bytes --]

#!/bin/sh

export_top_env()
{
	export suite='will-it-scale'
	export testcase='will-it-scale'
	export category='benchmark'
	export nr_task=52
	export job_origin='/lkp-src/allot/cyclic:p1:linux-devel:devel-hourly/lkp-skl-fpga01/will-it-scale-part1.yaml'
	export queue_cmdline_keys='branch
commit
queue_at_least_once'
	export queue='validate'
	export testbox='lkp-skl-fpga01'
	export tbox_group='lkp-skl-fpga01'
	export kconfig='x86_64-rhel-8.3'
	export submit_id='5fc79e34299e821971d20267'
	export job_file='/lkp/jobs/scheduled/lkp-skl-fpga01/will-it-scale-performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f-debian-10.4-x86_64-20200603.cgz-fec92278217ba01b4a3b-20201202-6513-1ixw40z-3.yaml'
	export id='36ede3773f9752be57385605ece195f7c72b1c50'
	export queuer_version='/lkp-src'
	export model='Skylake'
	export nr_node=2
	export nr_cpu=104
	export memory='192G'
	export kernel_cmdline_hw='acpi_rsdp=0x6b447014'
	export rootfs_partition='/dev/disk/by-id/ata-INTEL_SSDSC2BB800G4_CVWL34300015800RGN-part1'
	export commit='fec92278217ba01b4a3b9f9ec0f6a392069cdbd0'
	export ucode='0x2006a08'
	export enqueue_time='2020-12-02 22:01:24 +0800'
	export _id='5fc79e3a299e821971d20268'
	export _rt='/result/will-it-scale/performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f/lkp-skl-fpga01/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0'
	export user='lkp'
	export compiler='gcc-9'
	export head_commit='76b77b10f6fd5bd6295ee46b67e3cc5e2be1daab'
	export base_commit='b65054597872ce3aefbc6a666385eabdf9e288da'
	export branch='linux-review/Nadav-Amit/fs-userfaultfd-support-iouring-and-polling/20201129-085119'
	export rootfs='debian-10.4-x86_64-20200603.cgz'
	export monitor_sha='0fe5055f'
	export result_root='/result/will-it-scale/performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f/lkp-skl-fpga01/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/3'
	export scheduler_version='/lkp/lkp/.src-20201202-154510'
	export LKP_SERVER='internal-lkp-server'
	export arch='x86_64'
	export max_uptime=2400
	export initrd='/osimage/debian/debian-10.4-x86_64-20200603.cgz'
	export bootloader_append='root=/dev/ram0
user=lkp
job=/lkp/jobs/scheduled/lkp-skl-fpga01/will-it-scale-performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f-debian-10.4-x86_64-20200603.cgz-fec92278217ba01b4a3b-20201202-6513-1ixw40z-3.yaml
ARCH=x86_64
kconfig=x86_64-rhel-8.3
branch=linux-review/Nadav-Amit/fs-userfaultfd-support-iouring-and-polling/20201129-085119
commit=fec92278217ba01b4a3b9f9ec0f6a392069cdbd0
BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/vmlinuz-5.10.0-rc1-00026-gfec92278217b
acpi_rsdp=0x6b447014
max_uptime=2400
RESULT_ROOT=/result/will-it-scale/performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f/lkp-skl-fpga01/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/3
LKP_SERVER=internal-lkp-server
nokaslr
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/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/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_20200709.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/rsync-rootfs_20200608.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/will-it-scale_20201111.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/will-it-scale-x86_64-b695a1b-1_20201111.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/mpstat_20200714.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/perf_20201126.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/perf-x86_64-fa02fcd94b0c-1_20201126.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/sar-x86_64-34c92ae-1_20200702.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/hw_20200715.cgz'
	export ucode_initrd='/osimage/ucode/intel-ucode-20201117.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 last_kernel='5.10.0-rc6-09138-g76b77b10f6fd'
	export repeat_to=4
	export schedule_notify_address=
	export queue_at_least_once=1
	export kernel='/pkg/linux/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/vmlinuz-5.10.0-rc1-00026-gfec92278217b'
	export dequeue_time='2020-12-02 22:11:14 +0800'
	export job_initrd='/lkp/jobs/scheduled/lkp-skl-fpga01/will-it-scale-performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f-debian-10.4-x86_64-20200603.cgz-fec92278217ba01b4a3b-20201202-6513-1ixw40z-3.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_setup $LKP_SRC/setup/cpufreq_governor 'performance'

	run_monitor $LKP_SRC/monitors/wrapper kmsg
	run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time
	run_monitor $LKP_SRC/monitors/wrapper uptime
	run_monitor $LKP_SRC/monitors/wrapper iostat
	run_monitor $LKP_SRC/monitors/wrapper heartbeat
	run_monitor $LKP_SRC/monitors/wrapper vmstat
	run_monitor $LKP_SRC/monitors/wrapper numa-numastat
	run_monitor $LKP_SRC/monitors/wrapper numa-vmstat
	run_monitor $LKP_SRC/monitors/wrapper numa-meminfo
	run_monitor $LKP_SRC/monitors/wrapper proc-vmstat
	run_monitor $LKP_SRC/monitors/wrapper proc-stat
	run_monitor $LKP_SRC/monitors/wrapper meminfo
	run_monitor $LKP_SRC/monitors/wrapper slabinfo
	run_monitor $LKP_SRC/monitors/wrapper interrupts
	run_monitor $LKP_SRC/monitors/wrapper lock_stat
	run_monitor $LKP_SRC/monitors/wrapper latency_stats
	run_monitor $LKP_SRC/monitors/wrapper softirqs
	run_monitor $LKP_SRC/monitors/one-shot/wrapper bdi_dev_mapping
	run_monitor $LKP_SRC/monitors/wrapper diskstats
	run_monitor $LKP_SRC/monitors/wrapper nfsstat
	run_monitor $LKP_SRC/monitors/wrapper cpuidle
	run_monitor $LKP_SRC/monitors/wrapper cpufreq-stats
	run_monitor $LKP_SRC/monitors/wrapper sched_debug
	run_monitor $LKP_SRC/monitors/wrapper perf-stat
	run_monitor $LKP_SRC/monitors/wrapper mpstat
	run_monitor $LKP_SRC/monitors/no-stdout/wrapper perf-profile
	run_monitor $LKP_SRC/monitors/wrapper oom-killer
	run_monitor $LKP_SRC/monitors/plain/watchdog

	run_test mode='process' test='brk1' $LKP_SRC/tests/wrapper will-it-scale
}

extract_stats()
{
	export stats_part_begin=
	export stats_part_end=

	$LKP_SRC/stats/wrapper will-it-scale
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper boot-time
	$LKP_SRC/stats/wrapper uptime
	$LKP_SRC/stats/wrapper iostat
	$LKP_SRC/stats/wrapper vmstat
	$LKP_SRC/stats/wrapper numa-numastat
	$LKP_SRC/stats/wrapper numa-vmstat
	$LKP_SRC/stats/wrapper numa-meminfo
	$LKP_SRC/stats/wrapper proc-vmstat
	$LKP_SRC/stats/wrapper meminfo
	$LKP_SRC/stats/wrapper slabinfo
	$LKP_SRC/stats/wrapper interrupts
	$LKP_SRC/stats/wrapper lock_stat
	$LKP_SRC/stats/wrapper latency_stats
	$LKP_SRC/stats/wrapper softirqs
	$LKP_SRC/stats/wrapper diskstats
	$LKP_SRC/stats/wrapper nfsstat
	$LKP_SRC/stats/wrapper cpuidle
	$LKP_SRC/stats/wrapper sched_debug
	$LKP_SRC/stats/wrapper perf-stat
	$LKP_SRC/stats/wrapper mpstat
	$LKP_SRC/stats/wrapper perf-profile

	$LKP_SRC/stats/wrapper time will-it-scale.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: job.yaml --]
[-- Type: text/plain, Size: 5169 bytes --]

---

#! jobs/will-it-scale-part1.yaml
suite: will-it-scale
testcase: will-it-scale
category: benchmark
nr_task: 50%
will-it-scale:
  mode: process
  test: brk1
job_origin: "/lkp-src/allot/cyclic:p1:linux-devel:devel-hourly/lkp-skl-fpga01/will-it-scale-part1.yaml"

#! queue options
queue_cmdline_keys:
- branch
- commit
- queue_at_least_once
queue: bisect
testbox: lkp-skl-fpga01
tbox_group: lkp-skl-fpga01
kconfig: x86_64-rhel-8.3
submit_id: 5fc793cb299e82175e7f93f8
job_file: "/lkp/jobs/scheduled/lkp-skl-fpga01/will-it-scale-performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f-debian-10.4-x86_64-20200603.cgz-fec92278217ba01b4a3b-20201202-5982-1x8p1nh-0.yaml"
id: 394c6f70f6054e21902f27aaac847ecec15ee511
queuer_version: "/lkp-src"

#! hosts/lkp-skl-fpga01
model: Skylake
nr_node: 2
nr_cpu: 104
memory: 192G
kernel_cmdline_hw: acpi_rsdp=0x6b447014
rootfs_partition: "/dev/disk/by-id/ata-INTEL_SSDSC2BB800G4_CVWL34300015800RGN-part1"

#! include/category/benchmark
kmsg: 
boot-time: 
uptime: 
iostat: 
heartbeat: 
vmstat: 
numa-numastat: 
numa-vmstat: 
numa-meminfo: 
proc-vmstat: 
proc-stat: 
meminfo: 
slabinfo: 
interrupts: 
lock_stat: 
latency_stats: 
softirqs: 
bdi_dev_mapping: 
diskstats: 
nfsstat: 
cpuidle: 
cpufreq-stats: 
sched_debug: 
perf-stat: 
mpstat: 
perf-profile: 

#! include/category/ALL
cpufreq_governor: performance

#! include/queue/cyclic
commit: fec92278217ba01b4a3b9f9ec0f6a392069cdbd0

#! include/testbox/lkp-skl-fpga01
ucode: '0x2006a08'
enqueue_time: 2020-12-02 21:16:59.265583840 +08:00
_id: 5fc793cb299e82175e7f93f8
_rt: "/result/will-it-scale/performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f/lkp-skl-fpga01/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0"

#! schedule options
user: lkp
compiler: gcc-9
head_commit: 76b77b10f6fd5bd6295ee46b67e3cc5e2be1daab
base_commit: b65054597872ce3aefbc6a666385eabdf9e288da
branch: linux-devel/devel-hourly-2020120103
rootfs: debian-10.4-x86_64-20200603.cgz
monitor_sha: 0fe5055f
result_root: "/result/will-it-scale/performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f/lkp-skl-fpga01/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/0"
scheduler_version: "/lkp/lkp/.src-20201202-154510"
LKP_SERVER: internal-lkp-server
arch: x86_64
max_uptime: 2400
initrd: "/osimage/debian/debian-10.4-x86_64-20200603.cgz"
bootloader_append:
- root=/dev/ram0
- user=lkp
- job=/lkp/jobs/scheduled/lkp-skl-fpga01/will-it-scale-performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f-debian-10.4-x86_64-20200603.cgz-fec92278217ba01b4a3b-20201202-5982-1x8p1nh-0.yaml
- ARCH=x86_64
- kconfig=x86_64-rhel-8.3
- branch=linux-devel/devel-hourly-2020120103
- commit=fec92278217ba01b4a3b9f9ec0f6a392069cdbd0
- BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/vmlinuz-5.10.0-rc1-00026-gfec92278217b
- acpi_rsdp=0x6b447014
- max_uptime=2400
- RESULT_ROOT=/result/will-it-scale/performance-process-50%-brk1-ucode=0x2006a08-monitor=0fe5055f/lkp-skl-fpga01/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/0
- LKP_SERVER=internal-lkp-server
- nokaslr
- 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
modules_initrd: "/pkg/linux/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/modules.cgz"
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_20200709.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/rsync-rootfs_20200608.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/will-it-scale_20201111.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/will-it-scale-x86_64-b695a1b-1_20201111.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/mpstat_20200714.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/perf_20201126.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/perf-x86_64-fa02fcd94b0c-1_20201126.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/sar-x86_64-34c92ae-1_20200702.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/hw_20200715.cgz"
ucode_initrd: "/osimage/ucode/intel-ucode-20201117.cgz"
lkp_initrd: "/osimage/user/lkp/lkp-x86_64.cgz"
site: inn

#! /lkp/lkp/.src-20201201-225242/include/site/inn
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
oom-killer: 
watchdog: 

#! runtime status
last_kernel: 5.10.0-rc6
repeat_to: 2
schedule_notify_address: 

#! user overrides
queue_at_least_once: 0
kernel: "/pkg/linux/x86_64-rhel-8.3/gcc-9/fec92278217ba01b4a3b9f9ec0f6a392069cdbd0/vmlinuz-5.10.0-rc1-00026-gfec92278217b"
dequeue_time: 2020-12-02 21:39:04.569504738 +08:00

#! /lkp/lkp/.src-20201202-154510/include/site/inn
job_state: finished
loadavg: 43.82 32.30 14.49 1/770 10300
start_time: '1550139127'
end_time: '1550139428'
version: "/lkp/lkp/.src-20201202-154613:1dcf0cc4-dirty:5428e3fdc"

[-- Attachment #5: reproduce --]
[-- Type: text/plain, Size: 335 bytes --]


for cpu_dir in /sys/devices/system/cpu/cpu[0-9]*
do
	online_file="$cpu_dir"/online
	[ -f "$online_file" ] && [ "$(cat "$online_file")" -eq 0 ] && continue

	file="$cpu_dir"/cpufreq/scaling_governor
	[ -f "$file" ] && echo "performance" > "$file"
done

 "/lkp/benchmarks/python3/bin/python3" "./runtest.py" "brk1" "295" "process" "52"

Re: [RFC PATCH 01/13] fs/userfaultfd: fix wrong error code on WP & !VM_MAYWRITE

[Peter Xu]

On Tue, Dec 01, 2020 at 01:22:32PM -0800, Mike Kravetz wrote:
> On 11/28/20 4:45 PM, Nadav Amit wrote:
> > From: Nadav Amit <namit@vmware.com>
> > 
> > It is possible to get an EINVAL error instead of EPERM if the following
> > test vm_flags have VM_UFFD_WP but do not have VM_MAYWRITE, as "ret" is
> > overwritten since commit cab350afcbc9 ("userfaultfd: hugetlbfs: allow
> > registration of ranges containing huge pages").
> > 
> > Fix it.
> > 
> > Cc: Mike Kravetz <mike.kravetz@oracle.com>
> > Cc: Jens Axboe <axboe@kernel.dk>
> > Cc: Andrea Arcangeli <aarcange@redhat.com>
> > Cc: Peter Xu <peterx@redhat.com>
> > Cc: Alexander Viro <viro@zeniv.linux.org.uk>
> > Cc: io-uring@vger.kernel.org
> > Cc: linux-fsdevel@vger.kernel.org
> > Cc: linux-kernel@vger.kernel.org
> > Cc: linux-mm@kvack.org
> > Fixes: cab350afcbc9 ("userfaultfd: hugetlbfs: allow registration of ranges containing huge pages")
> > Signed-off-by: Nadav Amit <namit@vmware.com>
> > ---
> >  fs/userfaultfd.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
> > index 000b457ad087..c8ed4320370e 100644
> > --- a/fs/userfaultfd.c
> > +++ b/fs/userfaultfd.c
> > @@ -1364,6 +1364,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
> >  			if (end & (vma_hpagesize - 1))
> >  				goto out_unlock;
> >  		}
> > +		ret = -EPERM;
> >  		if ((vm_flags & VM_UFFD_WP) && !(cur->vm_flags & VM_MAYWRITE))
> >  			goto out_unlock;
> >  
> 
> Thanks!  We should return EPERM in that case.
> 
> However, the check for VM_UFFD_WP && !VM_MAYWRITE went in after commit
> cab350afcbc9.  I think it is more accurate to say that the issue was
> introduced with commit 63b2d4174c4a ("Introduce the new uffd-wp APIs
> for userspace.").  The convention in userfaultfd_register() is that the
> return code is set before testing condition which could cause return.
> Therefore, when 63b2d4174c4a added the VM_UFFD_WP && !VM_MAYWRITE check,
> it should have also added the 'ret = -EPERM;' statement.

Right, if there's a "fixes" then it should be the uffd-wp patch.

Though I really think it won't happen... Firstly because hugetlbfs is not yet
supported for uffd-wp, so the two "if" won't collapse, so no way to trigger it
imho. More importantly we've got one check ahead of it:

		/*
		 * UFFDIO_COPY will fill file holes even without
		 * PROT_WRITE. This check enforces that if this is a
		 * MAP_SHARED, the process has write permission to the backing
		 * file. If VM_MAYWRITE is set it also enforces that on a
		 * MAP_SHARED vma: there is no F_WRITE_SEAL and no further
		 * F_WRITE_SEAL can be taken until the vma is destroyed.
		 */
		ret = -EPERM;
		if (unlikely(!(cur->vm_flags & VM_MAYWRITE)))
			goto out_unlock;

AFAICT it will fail there directly when write perm is missing.

My wild guess is that the 1st version of 63b2d4174c4ad1f (2020) came earlier
than 29ec90660d (2018), however not needed anymore after the 2020 patch.  Hence
it's probably overlooked by me when I rebased.

Summary: IMHO no bug to fix, but we can directly drop the latter check?

Thanks,

-- 
Peter Xu

Re: [RFC PATCH 03/13] selftests/vm/userfaultfd: wake after copy failure

[Peter Xu]

On Sat, Nov 28, 2020 at 04:45:38PM -0800, Nadav Amit wrote:
> From: Nadav Amit <namit@vmware.com>
> 
> When userfaultfd copy-ioctl fails since the PTE already exists, an
> -EEXIST error is returned and the faulting thread is not woken. The
> current userfaultfd test does not wake the faulting thread in such case.
> The assumption is presumably that another thread set the PTE through
> copy/wp ioctl and would wake the faulting thread or that alternatively
> the fault handler would realize there is no need to "must_wait" and
> continue. This is not necessarily true.
> 
> There is an assumption that the "must_wait" tests in handle_userfault()
> are sufficient to provide definitive answer whether the offending PTE is
> populated or not. However, userfaultfd_must_wait() test is lockless.
> Consequently, concurrent calls to ptep_modify_prot_start(), for
> instance, can clear the PTE and can cause userfaultfd_must_wait()
> to wrongly assume it is not populated and a wait is needed.

Yes userfaultfd_must_wait() is lockless, however my understanding is that we'll
enqueue before reading the page table, which seems to me that we'll always get
notified even the race happens.  Should apply to either UFFDIO_WRITEPROTECT or
UFFDIO_COPY, iiuc, as long as we follow the order of (1) modify pgtable (2)
wake sleeping threads.  Then it also means that when must_wait() returned true,
it should always get waked up when fault resolved.

Taking UFFDIO_COPY as example, even if UFFDIO_COPY happen right before
must_wait() calls:

       worker thread                       uffd thread
       -------------                       -----------

   handle_userfault
    spin_lock(fault_pending_wqh)
    enqueue()
    set_current_state(INTERRUPTIBLE)
    spin_unlock(fault_pending_wqh)
    must_wait()
      lockless walk page table
                                           UFFDIO_COPY
                                             fill in the hole
                                             wake up threads
                                               (this will wake up worker thread too?)
    schedule()
      (which may return immediately?)

While here fault_pending_wqh is lock protected. I just feel like there's some
other reason to cause the thread to stall.  Or did I miss something?

Thanks,

-- 
Peter Xu

Re: [RFC PATCH 03/13] selftests/vm/userfaultfd: wake after copy failure

[Nadav Amit]

> On Dec 21, 2020, at 11:28 AM, Peter Xu <peterx@redhat.com> wrote:
> 
> On Sat, Nov 28, 2020 at 04:45:38PM -0800, Nadav Amit wrote:
>> From: Nadav Amit <namit@vmware.com>
>> 
>> When userfaultfd copy-ioctl fails since the PTE already exists, an
>> -EEXIST error is returned and the faulting thread is not woken. The
>> current userfaultfd test does not wake the faulting thread in such case.
>> The assumption is presumably that another thread set the PTE through
>> copy/wp ioctl and would wake the faulting thread or that alternatively
>> the fault handler would realize there is no need to "must_wait" and
>> continue. This is not necessarily true.
>> 
>> There is an assumption that the "must_wait" tests in handle_userfault()
>> are sufficient to provide definitive answer whether the offending PTE is
>> populated or not. However, userfaultfd_must_wait() test is lockless.
>> Consequently, concurrent calls to ptep_modify_prot_start(), for
>> instance, can clear the PTE and can cause userfaultfd_must_wait()
>> to wrongly assume it is not populated and a wait is needed.
> 
> Yes userfaultfd_must_wait() is lockless, however my understanding is that we'll
> enqueue before reading the page table, which seems to me that we'll always get
> notified even the race happens.  Should apply to either UFFDIO_WRITEPROTECT or
> UFFDIO_COPY, iiuc, as long as we follow the order of (1) modify pgtable (2)
> wake sleeping threads.  Then it also means that when must_wait() returned true,
> it should always get waked up when fault resolved.
> 
> Taking UFFDIO_COPY as example, even if UFFDIO_COPY happen right before
> must_wait() calls:
> 
>       worker thread                       uffd thread
>       -------------                       -----------
> 
>   handle_userfault
>    spin_lock(fault_pending_wqh)
>    enqueue()
>    set_current_state(INTERRUPTIBLE)
>    spin_unlock(fault_pending_wqh)
>    must_wait()
>      lockless walk page table
>                                           UFFDIO_COPY
>                                             fill in the hole
>                                             wake up threads
>                                               (this will wake up worker thread too?)
>    schedule()
>      (which may return immediately?)
> 
> While here fault_pending_wqh is lock protected. I just feel like there's some
> other reason to cause the thread to stall.  Or did I miss something?

But what happens if the copy completed before the enqueuing? Assume
the page is write-protected during UFFDIO_COPY:


cpu0					cpu1		
----					----			
handle_userfault
					UFFDIO_COPY
					[ write-protected ]
				 	 fill in the hole
				 	 wake up threads
				 	 [nothing to wake]
							
					UFFD_WP (unprotect)
					 logically marks as unprotected
					 [nothing to wake]

 spin_lock(fault_pending_wqh)
  enqueue()
  set_current_state(INTERRUPTIBLE)
  spin_unlock(fault_pending_wqh)
  must_wait()

					[ #PF on the same PTE
					 due to write-protection ]

					...
					 wp_page_copy()
					  ptep_clear_flush_notify()
					  [ PTE is clear ]
					
   lockless walk page table
    pte_none(*pte) -> must wait

Note that additional scenarios are possible. For instance, instead of
wp_page_copy(), we can have other change_pte_range() (due to worker’s
mprotect() or NUMA balancing), calling ptep_modify_prot_start() and clearing
the PTE.

Am I missing something?

Re: [RFC PATCH 03/13] selftests/vm/userfaultfd: wake after copy failure

[Peter Xu]

On Mon, Dec 21, 2020 at 07:51:52PM +0000, Nadav Amit wrote:
> > On Dec 21, 2020, at 11:28 AM, Peter Xu <peterx@redhat.com> wrote:
> > 
> > On Sat, Nov 28, 2020 at 04:45:38PM -0800, Nadav Amit wrote:
> >> From: Nadav Amit <namit@vmware.com>
> >> 
> >> When userfaultfd copy-ioctl fails since the PTE already exists, an
> >> -EEXIST error is returned and the faulting thread is not woken. The
> >> current userfaultfd test does not wake the faulting thread in such case.
> >> The assumption is presumably that another thread set the PTE through
> >> copy/wp ioctl and would wake the faulting thread or that alternatively
> >> the fault handler would realize there is no need to "must_wait" and
> >> continue. This is not necessarily true.
> >> 
> >> There is an assumption that the "must_wait" tests in handle_userfault()
> >> are sufficient to provide definitive answer whether the offending PTE is
> >> populated or not. However, userfaultfd_must_wait() test is lockless.
> >> Consequently, concurrent calls to ptep_modify_prot_start(), for
> >> instance, can clear the PTE and can cause userfaultfd_must_wait()
> >> to wrongly assume it is not populated and a wait is needed.
> > 
> > Yes userfaultfd_must_wait() is lockless, however my understanding is that we'll
> > enqueue before reading the page table, which seems to me that we'll always get
> > notified even the race happens.  Should apply to either UFFDIO_WRITEPROTECT or
> > UFFDIO_COPY, iiuc, as long as we follow the order of (1) modify pgtable (2)
> > wake sleeping threads.  Then it also means that when must_wait() returned true,
> > it should always get waked up when fault resolved.
> > 
> > Taking UFFDIO_COPY as example, even if UFFDIO_COPY happen right before
> > must_wait() calls:
> > 
> >       worker thread                       uffd thread
> >       -------------                       -----------
> > 
> >   handle_userfault
> >    spin_lock(fault_pending_wqh)
> >    enqueue()
> >    set_current_state(INTERRUPTIBLE)
> >    spin_unlock(fault_pending_wqh)
> >    must_wait()
> >      lockless walk page table
> >                                           UFFDIO_COPY
> >                                             fill in the hole
> >                                             wake up threads
> >                                               (this will wake up worker thread too?)
> >    schedule()
> >      (which may return immediately?)
> > 
> > While here fault_pending_wqh is lock protected. I just feel like there's some
> > other reason to cause the thread to stall.  Or did I miss something?
> 
> But what happens if the copy completed before the enqueuing? Assume
> the page is write-protected during UFFDIO_COPY:
> 
> 
> cpu0					cpu1		
> ----					----			
> handle_userfault
> 					UFFDIO_COPY
> 					[ write-protected ]
> 				 	 fill in the hole
> 				 	 wake up threads
> 				 	 [nothing to wake]
> 							
> 					UFFD_WP (unprotect)
> 					 logically marks as unprotected
> 					 [nothing to wake]
> 
>  spin_lock(fault_pending_wqh)
>   enqueue()
>   set_current_state(INTERRUPTIBLE)
>   spin_unlock(fault_pending_wqh)
>   must_wait()
> 
> 					[ #PF on the same PTE
> 					 due to write-protection ]
> 
> 					...
> 					 wp_page_copy()
> 					  ptep_clear_flush_notify()
> 					  [ PTE is clear ]
> 					
>    lockless walk page table
>     pte_none(*pte) -> must wait
> 
> Note that additional scenarios are possible. For instance, instead of
> wp_page_copy(), we can have other change_pte_range() (due to worker’s
> mprotect() or NUMA balancing), calling ptep_modify_prot_start() and clearing
> the PTE.
> 
> Am I missing something?

Ah I see your point, thanks.  I think you're right:

Reviewed-by: Peter Xu <peterx@redhat.com>

Would you mind adding something like above into the commit message if you're
going to repost?  IMHO it would even be nicer to mention why
UFFDIO_WRITEPROTECT does not need this extra wakeup (I think it's because it'll
do the wakeup unconditionally anyway).

-- 
Peter Xu

Re: [RFC PATCH 03/13] selftests/vm/userfaultfd: wake after copy failure

[Nadav Amit]

> On Dec 21, 2020, at 12:52 PM, Peter Xu <peterx@redhat.com> wrote:
> 
> On Mon, Dec 21, 2020 at 07:51:52PM +0000, Nadav Amit wrote:
>>> On Dec 21, 2020, at 11:28 AM, Peter Xu <peterx@redhat.com> wrote:
>>> 
>>> On Sat, Nov 28, 2020 at 04:45:38PM -0800, Nadav Amit wrote:
>>>> From: Nadav Amit <namit@vmware.com>
>>>> 
>>>> When userfaultfd copy-ioctl fails since the PTE already exists, an
>>>> -EEXIST error is returned and the faulting thread is not woken. The
>>>> current userfaultfd test does not wake the faulting thread in such case.
>>>> The assumption is presumably that another thread set the PTE through
>>>> copy/wp ioctl and would wake the faulting thread or that alternatively
>>>> the fault handler would realize there is no need to "must_wait" and
>>>> continue. This is not necessarily true.
>>>> 
>>>> There is an assumption that the "must_wait" tests in handle_userfault()
>>>> are sufficient to provide definitive answer whether the offending PTE is
>>>> populated or not. However, userfaultfd_must_wait() test is lockless.
>>>> Consequently, concurrent calls to ptep_modify_prot_start(), for
>>>> instance, can clear the PTE and can cause userfaultfd_must_wait()
>>>> to wrongly assume it is not populated and a wait is needed.
>>> 
>>> Yes userfaultfd_must_wait() is lockless, however my understanding is that we'll
>>> enqueue before reading the page table, which seems to me that we'll always get
>>> notified even the race happens.  Should apply to either UFFDIO_WRITEPROTECT or
>>> UFFDIO_COPY, iiuc, as long as we follow the order of (1) modify pgtable (2)
>>> wake sleeping threads.  Then it also means that when must_wait() returned true,
>>> it should always get waked up when fault resolved.
>>> 
>>> Taking UFFDIO_COPY as example, even if UFFDIO_COPY happen right before
>>> must_wait() calls:
>>> 
>>>      worker thread                       uffd thread
>>>      -------------                       -----------
>>> 
>>>  handle_userfault
>>>   spin_lock(fault_pending_wqh)
>>>   enqueue()
>>>   set_current_state(INTERRUPTIBLE)
>>>   spin_unlock(fault_pending_wqh)
>>>   must_wait()
>>>     lockless walk page table
>>>                                          UFFDIO_COPY
>>>                                            fill in the hole
>>>                                            wake up threads
>>>                                              (this will wake up worker thread too?)
>>>   schedule()
>>>     (which may return immediately?)
>>> 
>>> While here fault_pending_wqh is lock protected. I just feel like there's some
>>> other reason to cause the thread to stall.  Or did I miss something?
>> 
>> But what happens if the copy completed before the enqueuing? Assume
>> the page is write-protected during UFFDIO_COPY:
>> 
>> 
>> cpu0					cpu1		
>> ----					----			
>> handle_userfault
>> 					UFFDIO_COPY
>> 					[ write-protected ]
>> 				 	 fill in the hole
>> 				 	 wake up threads
>> 				 	 [nothing to wake]
>> 							
>> 					UFFD_WP (unprotect)
>> 					 logically marks as unprotected
>> 					 [nothing to wake]
>> 
>> spin_lock(fault_pending_wqh)
>>  enqueue()
>>  set_current_state(INTERRUPTIBLE)
>>  spin_unlock(fault_pending_wqh)
>>  must_wait()
>> 
>> 					[ #PF on the same PTE
>> 					 due to write-protection ]
>> 
>> 					...
>> 					 wp_page_copy()
>> 					  ptep_clear_flush_notify()
>> 					  [ PTE is clear ]
>> 					
>>   lockless walk page table
>>    pte_none(*pte) -> must wait
>> 
>> Note that additional scenarios are possible. For instance, instead of
>> wp_page_copy(), we can have other change_pte_range() (due to worker’s
>> mprotect() or NUMA balancing), calling ptep_modify_prot_start() and clearing
>> the PTE.
>> 
>> Am I missing something?
> 
> Ah I see your point, thanks.  I think you're right:
> 
> Reviewed-by: Peter Xu <peterx@redhat.com>
> 
> Would you mind adding something like above into the commit message if you're
> going to repost?  IMHO it would even be nicer to mention why
> UFFDIO_WRITEPROTECT does not need this extra wakeup (I think it's because it'll
> do the wakeup unconditionally anyway).

Yes, the commit log needs to be fixed.

I will update it based on your feedback on RFC-v2.

Thanks,
Nadav