* [Qemu-devel] [PATCH V6 1/7] memory, exec: Expose all memory block related flags.
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
@ 2018-06-01 8:10 ` junyan.he
2018-06-05 11:38 ` Stefan Hajnoczi
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 2/7] memory, exec: switch file ram allocation functions to 'flags' parameters junyan.he
` (8 subsequent siblings)
9 siblings, 1 reply; 28+ messages in thread
From: junyan.he @ 2018-06-01 8:10 UTC (permalink / raw)
To: qemu-devel
Cc: ehabkost, imammedo, pbonzini, crosthwaite.peter, rth,
xiaoguangrong.eric, mst, quintela, dgilbert, stefanha, Junyan He
From: Junyan He <junyan.he@intel.com>
We need to use these flags in other files rather than just in exec.c,
For example, RAM_SHARED should be used when create a ram block from file.
We expose them the exec/memory.h
Signed-off-by: Junyan He <junyan.he@intel.com>
---
exec.c | 17 -----------------
include/exec/memory.h | 17 +++++++++++++++++
2 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/exec.c b/exec.c
index c30f905..302c04b 100644
--- a/exec.c
+++ b/exec.c
@@ -87,23 +87,6 @@ AddressSpace address_space_memory;
MemoryRegion io_mem_rom, io_mem_notdirty;
static MemoryRegion io_mem_unassigned;
-
-/* RAM is pre-allocated and passed into qemu_ram_alloc_from_ptr */
-#define RAM_PREALLOC (1 << 0)
-
-/* RAM is mmap-ed with MAP_SHARED */
-#define RAM_SHARED (1 << 1)
-
-/* Only a portion of RAM (used_length) is actually used, and migrated.
- * This used_length size can change across reboots.
- */
-#define RAM_RESIZEABLE (1 << 2)
-
-/* UFFDIO_ZEROPAGE is available on this RAMBlock to atomically
- * zero the page and wake waiting processes.
- * (Set during postcopy)
- */
-#define RAM_UF_ZEROPAGE (1 << 3)
#endif
#ifdef TARGET_PAGE_BITS_VARY
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 67ea7fe..3da315e 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -102,6 +102,23 @@ struct IOMMUNotifier {
};
typedef struct IOMMUNotifier IOMMUNotifier;
+/* RAM is pre-allocated and passed into qemu_ram_alloc_from_ptr */
+#define RAM_PREALLOC (1 << 0)
+
+/* RAM is mmap-ed with MAP_SHARED */
+#define RAM_SHARED (1 << 1)
+
+/* Only a portion of RAM (used_length) is actually used, and migrated.
+ * This used_length size can change across reboots.
+ */
+#define RAM_RESIZEABLE (1 << 2)
+
+/* UFFDIO_ZEROPAGE is available on this RAMBlock to atomically
+ * zero the page and wake waiting processes.
+ * (Set during postcopy)
+ */
+#define RAM_UF_ZEROPAGE (1 << 3)
+
static inline void iommu_notifier_init(IOMMUNotifier *n, IOMMUNotify fn,
IOMMUNotifierFlag flags,
hwaddr start, hwaddr end)
--
2.7.4
^ permalink raw reply related [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 1/7] memory, exec: Expose all memory block related flags.
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 1/7] memory, exec: Expose all memory block related flags junyan.he
@ 2018-06-05 11:38 ` Stefan Hajnoczi
0 siblings, 0 replies; 28+ messages in thread
From: Stefan Hajnoczi @ 2018-06-05 11:38 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, xiaoguangrong.eric, crosthwaite.peter, mst, dgilbert,
ehabkost, quintela, Junyan He, stefanha, pbonzini, imammedo, rth
[-- Attachment #1: Type: text/plain, Size: 738 bytes --]
On Fri, Jun 01, 2018 at 04:10:23PM +0800, junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> We need to use these flags in other files rather than just in exec.c,
> For example, RAM_SHARED should be used when create a ram block from file.
> We expose them the exec/memory.h
>
> Signed-off-by: Junyan He <junyan.he@intel.com>
> ---
> exec.c | 17 -----------------
> include/exec/memory.h | 17 +++++++++++++++++
> 2 files changed, 17 insertions(+), 17 deletions(-)
To other reviewers:
All of include/exec/memory.h is inside #ifndef CONFIG_USER_ONLY so the
ifdef situation hasn't changed (it's hard to tell from the patch
itself).
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 28+ messages in thread
* [Qemu-devel] [PATCH V6 2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 1/7] memory, exec: Expose all memory block related flags junyan.he
@ 2018-06-01 8:10 ` junyan.he
2018-06-05 11:40 ` Stefan Hajnoczi
2018-06-11 15:53 ` Igor Mammedov
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 3/7] hostmem-file: add the 'pmem' option junyan.he
` (7 subsequent siblings)
9 siblings, 2 replies; 28+ messages in thread
From: junyan.he @ 2018-06-01 8:10 UTC (permalink / raw)
To: qemu-devel
Cc: ehabkost, imammedo, pbonzini, crosthwaite.peter, rth,
xiaoguangrong.eric, mst, quintela, dgilbert, stefanha, Junyan He,
Haozhong Zhang
From: Junyan He <junyan.he@intel.com>
As more flag parameters besides the existing 'share' are going to be
added to following functions
memory_region_init_ram_from_file
qemu_ram_alloc_from_fd
qemu_ram_alloc_from_file
let's switch them to use the 'flags' parameters so as to ease future
flag additions.
The existing 'share' flag is converted to the RAM_SHARED bit in ram_flags,
and other flag bits are ignored by above functions right now.
Signed-off-by: Junyan He <junyan.he@intel.com>
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
---
backends/hostmem-file.c | 3 ++-
exec.c | 10 +++++-----
include/exec/memory.h | 8 ++++++--
include/exec/ram_addr.h | 25 +++++++++++++++++++++++--
memory.c | 8 +++++---
numa.c | 2 +-
6 files changed, 42 insertions(+), 14 deletions(-)
diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c
index 134b08d..34c68bb 100644
--- a/backends/hostmem-file.c
+++ b/backends/hostmem-file.c
@@ -58,7 +58,8 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
path = object_get_canonical_path(OBJECT(backend));
memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
path,
- backend->size, fb->align, backend->share,
+ backend->size, fb->align,
+ backend->share ? RAM_SHARED : 0,
fb->mem_path, errp);
g_free(path);
}
diff --git a/exec.c b/exec.c
index 302c04b..f2082fa 100644
--- a/exec.c
+++ b/exec.c
@@ -2054,7 +2054,7 @@ static void ram_block_add(RAMBlock *new_block, Error **errp, bool shared)
#ifdef __linux__
RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
- bool share, int fd,
+ uint64_t ram_flags, int fd,
Error **errp)
{
RAMBlock *new_block;
@@ -2096,14 +2096,14 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
new_block->mr = mr;
new_block->used_length = size;
new_block->max_length = size;
- new_block->flags = share ? RAM_SHARED : 0;
+ new_block->flags = ram_flags;
new_block->host = file_ram_alloc(new_block, size, fd, !file_size, errp);
if (!new_block->host) {
g_free(new_block);
return NULL;
}
- ram_block_add(new_block, &local_err, share);
+ ram_block_add(new_block, &local_err, ram_flags & RAM_SHARED);
if (local_err) {
g_free(new_block);
error_propagate(errp, local_err);
@@ -2115,7 +2115,7 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
RAMBlock *qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
- bool share, const char *mem_path,
+ uint64_t ram_flags, const char *mem_path,
Error **errp)
{
int fd;
@@ -2127,7 +2127,7 @@ RAMBlock *qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
return NULL;
}
- block = qemu_ram_alloc_from_fd(size, mr, share, fd, errp);
+ block = qemu_ram_alloc_from_fd(size, mr, ram_flags, fd, errp);
if (!block) {
if (created) {
unlink(mem_path);
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 3da315e..3b68a43 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -596,6 +596,7 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
void *host),
Error **errp);
#ifdef __linux__
+
/**
* memory_region_init_ram_from_file: Initialize RAM memory region with a
* mmap-ed backend.
@@ -607,7 +608,10 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
* @size: size of the region.
* @align: alignment of the region base address; if 0, the default alignment
* (getpagesize()) will be used.
- * @share: %true if memory must be mmaped with the MAP_SHARED flag
+ * @ram_flags: specify properties of this memory region, which can be one or
+ * bit-or of following values:
+ * - RAM_SHARED: memory must be mmaped with the MAP_SHARED flag
+ * Other bits are ignored.
* @path: the path in which to allocate the RAM.
* @errp: pointer to Error*, to store an error if it happens.
*
@@ -619,7 +623,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
const char *name,
uint64_t size,
uint64_t align,
- bool share,
+ uint64_t ram_flags,
const char *path,
Error **errp);
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index cf2446a..b478455 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -72,12 +72,33 @@ static inline unsigned long int ramblock_recv_bitmap_offset(void *host_addr,
long qemu_getrampagesize(void);
unsigned long last_ram_page(void);
+
+/**
+ * qemu_ram_alloc_from_file,
+ * qemu_ram_alloc_from_fd: Allocate a ram block from the specified back
+ * file or device
+ *
+ * Parameters:
+ * @size: the size in bytes of the ram block
+ * @mr: the memory region where the ram block is
+ * @ram_flags: specify the properties of the ram block, which can be one
+ * or bit-or of following values
+ * - RAM_SHARED: mmap the back file or device with MAP_SHARED
+ * Other bits are ignored.
+ * @mem_path or @fd: specify the back file or device
+ * @errp: pointer to Error*, to store an error if it happens
+ *
+ * Return:
+ * On success, return a pointer to the ram block.
+ * On failure, return NULL.
+ */
RAMBlock *qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
- bool share, const char *mem_path,
+ uint64_t ram_flags, const char *mem_path,
Error **errp);
RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
- bool share, int fd,
+ uint64_t ram_flags, int fd,
Error **errp);
+
RAMBlock *qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
MemoryRegion *mr, Error **errp);
RAMBlock *qemu_ram_alloc(ram_addr_t size, bool share, MemoryRegion *mr,
diff --git a/memory.c b/memory.c
index 10fa2dd..08acae4 100644
--- a/memory.c
+++ b/memory.c
@@ -1554,7 +1554,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
const char *name,
uint64_t size,
uint64_t align,
- bool share,
+ uint64_t ram_flags,
const char *path,
Error **errp)
{
@@ -1563,7 +1563,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
mr->terminates = true;
mr->destructor = memory_region_destructor_ram;
mr->align = align;
- mr->ram_block = qemu_ram_alloc_from_file(size, mr, share, path, errp);
+ mr->ram_block = qemu_ram_alloc_from_file(size, mr, ram_flags, path, errp);
mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
}
@@ -1579,7 +1579,9 @@ void memory_region_init_ram_from_fd(MemoryRegion *mr,
mr->ram = true;
mr->terminates = true;
mr->destructor = memory_region_destructor_ram;
- mr->ram_block = qemu_ram_alloc_from_fd(size, mr, share, fd, errp);
+ mr->ram_block = qemu_ram_alloc_from_fd(size, mr,
+ share ? RAM_SHARED : 0,
+ fd, errp);
mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
}
#endif
diff --git a/numa.c b/numa.c
index 33572bf..ba72267 100644
--- a/numa.c
+++ b/numa.c
@@ -479,7 +479,7 @@ static void allocate_system_memory_nonnuma(MemoryRegion *mr, Object *owner,
if (mem_path) {
#ifdef __linux__
Error *err = NULL;
- memory_region_init_ram_from_file(mr, owner, name, ram_size, 0, false,
+ memory_region_init_ram_from_file(mr, owner, name, ram_size, 0, 0,
mem_path, &err);
if (err) {
error_report_err(err);
--
2.7.4
^ permalink raw reply related [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 2/7] memory, exec: switch file ram allocation functions to 'flags' parameters junyan.he
@ 2018-06-05 11:40 ` Stefan Hajnoczi
2018-06-11 15:53 ` Igor Mammedov
1 sibling, 0 replies; 28+ messages in thread
From: Stefan Hajnoczi @ 2018-06-05 11:40 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, Haozhong Zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, Junyan He,
stefanha, pbonzini, imammedo, rth
[-- Attachment #1: Type: text/plain, Size: 1041 bytes --]
On Fri, Jun 01, 2018 at 04:10:24PM +0800, junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> As more flag parameters besides the existing 'share' are going to be
> added to following functions
> memory_region_init_ram_from_file
> qemu_ram_alloc_from_fd
> qemu_ram_alloc_from_file
> let's switch them to use the 'flags' parameters so as to ease future
> flag additions.
>
> The existing 'share' flag is converted to the RAM_SHARED bit in ram_flags,
> and other flag bits are ignored by above functions right now.
>
> Signed-off-by: Junyan He <junyan.he@intel.com>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> ---
> backends/hostmem-file.c | 3 ++-
> exec.c | 10 +++++-----
> include/exec/memory.h | 8 ++++++--
> include/exec/ram_addr.h | 25 +++++++++++++++++++++++--
> memory.c | 8 +++++---
> numa.c | 2 +-
> 6 files changed, 42 insertions(+), 14 deletions(-)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 455 bytes --]
^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: [Qemu-devel] [PATCH V6 2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 2/7] memory, exec: switch file ram allocation functions to 'flags' parameters junyan.he
2018-06-05 11:40 ` Stefan Hajnoczi
@ 2018-06-11 15:53 ` Igor Mammedov
1 sibling, 0 replies; 28+ messages in thread
From: Igor Mammedov @ 2018-06-11 15:53 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, Haozhong Zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, Junyan He,
stefanha, pbonzini, rth
On Fri, 1 Jun 2018 16:10:24 +0800
junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> As more flag parameters besides the existing 'share' are going to be
> added to following functions
> memory_region_init_ram_from_file
> qemu_ram_alloc_from_fd
> qemu_ram_alloc_from_file
> let's switch them to use the 'flags' parameters so as to ease future
> flag additions.
>
> The existing 'share' flag is converted to the RAM_SHARED bit in ram_flags,
> and other flag bits are ignored by above functions right now.
>
> Signed-off-by: Junyan He <junyan.he@intel.com>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> ---
> backends/hostmem-file.c | 3 ++-
> exec.c | 10 +++++-----
> include/exec/memory.h | 8 ++++++--
> include/exec/ram_addr.h | 25 +++++++++++++++++++++++--
> memory.c | 8 +++++---
> numa.c | 2 +-
> 6 files changed, 42 insertions(+), 14 deletions(-)
>
> diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c
> index 134b08d..34c68bb 100644
> --- a/backends/hostmem-file.c
> +++ b/backends/hostmem-file.c
> @@ -58,7 +58,8 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
> path = object_get_canonical_path(OBJECT(backend));
> memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
> path,
> - backend->size, fb->align, backend->share,
> + backend->size, fb->align,
> + backend->share ? RAM_SHARED : 0,
> fb->mem_path, errp);
> g_free(path);
> }
> diff --git a/exec.c b/exec.c
> index 302c04b..f2082fa 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -2054,7 +2054,7 @@ static void ram_block_add(RAMBlock *new_block, Error **errp, bool shared)
>
> #ifdef __linux__
> RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
> - bool share, int fd,
> + uint64_t ram_flags, int fd,
> Error **errp)
> {
> RAMBlock *new_block;
> @@ -2096,14 +2096,14 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
> new_block->mr = mr;
> new_block->used_length = size;
> new_block->max_length = size;
> - new_block->flags = share ? RAM_SHARED : 0;
> + new_block->flags = ram_flags;
> new_block->host = file_ram_alloc(new_block, size, fd, !file_size, errp);
> if (!new_block->host) {
> g_free(new_block);
> return NULL;
> }
>
> - ram_block_add(new_block, &local_err, share);
> + ram_block_add(new_block, &local_err, ram_flags & RAM_SHARED);
> if (local_err) {
> g_free(new_block);
> error_propagate(errp, local_err);
> @@ -2115,7 +2115,7 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
>
>
> RAMBlock *qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
> - bool share, const char *mem_path,
> + uint64_t ram_flags, const char *mem_path,
> Error **errp)
> {
> int fd;
> @@ -2127,7 +2127,7 @@ RAMBlock *qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
> return NULL;
> }
>
> - block = qemu_ram_alloc_from_fd(size, mr, share, fd, errp);
> + block = qemu_ram_alloc_from_fd(size, mr, ram_flags, fd, errp);
> if (!block) {
> if (created) {
> unlink(mem_path);
> diff --git a/include/exec/memory.h b/include/exec/memory.h
> index 3da315e..3b68a43 100644
> --- a/include/exec/memory.h
> +++ b/include/exec/memory.h
> @@ -596,6 +596,7 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
> void *host),
> Error **errp);
> #ifdef __linux__
> +
> /**
> * memory_region_init_ram_from_file: Initialize RAM memory region with a
> * mmap-ed backend.
> @@ -607,7 +608,10 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
> * @size: size of the region.
> * @align: alignment of the region base address; if 0, the default alignment
> * (getpagesize()) will be used.
> - * @share: %true if memory must be mmaped with the MAP_SHARED flag
> + * @ram_flags: specify properties of this memory region, which can be one or
> + * bit-or of following values:
I'd spell it out as:
@ram_flags: memory region features:
> + * - RAM_SHARED: memory must be mmaped with the MAP_SHARED flag
> + * Other bits are ignored.
> * @path: the path in which to allocate the RAM.
> * @errp: pointer to Error*, to store an error if it happens.
> *
> @@ -619,7 +623,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
> const char *name,
> uint64_t size,
> uint64_t align,
> - bool share,
> + uint64_t ram_flags,
> const char *path,
> Error **errp);
>
> diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
> index cf2446a..b478455 100644
> --- a/include/exec/ram_addr.h
> +++ b/include/exec/ram_addr.h
> @@ -72,12 +72,33 @@ static inline unsigned long int ramblock_recv_bitmap_offset(void *host_addr,
>
> long qemu_getrampagesize(void);
> unsigned long last_ram_page(void);
> +
> +/**
> + * qemu_ram_alloc_from_file,
> + * qemu_ram_alloc_from_fd: Allocate a ram block from the specified back
> + * file or device
s/back file/baking file/
here and in all other places it's added
and maybe s/device/file descriptor/
> + *
> + * Parameters:
> + * @size: the size in bytes of the ram block
> + * @mr: the memory region where the ram block is
> + * @ram_flags: specify the properties of the ram block, which can be one
> + * or bit-or of following values
> + * - RAM_SHARED: mmap the back file or device with MAP_SHARED
> + * Other bits are ignored.
> + * @mem_path or @fd: specify the back file or device
> + * @errp: pointer to Error*, to store an error if it happens
> + *
> + * Return:
> + * On success, return a pointer to the ram block.
> + * On failure, return NULL.
> + */
> RAMBlock *qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
> - bool share, const char *mem_path,
> + uint64_t ram_flags, const char *mem_path,
> Error **errp);
> RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
> - bool share, int fd,
> + uint64_t ram_flags, int fd,
> Error **errp);
> +
> RAMBlock *qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
> MemoryRegion *mr, Error **errp);
> RAMBlock *qemu_ram_alloc(ram_addr_t size, bool share, MemoryRegion *mr,
> diff --git a/memory.c b/memory.c
> index 10fa2dd..08acae4 100644
> --- a/memory.c
> +++ b/memory.c
> @@ -1554,7 +1554,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
> const char *name,
> uint64_t size,
> uint64_t align,
> - bool share,
> + uint64_t ram_flags,
> const char *path,
> Error **errp)
> {
> @@ -1563,7 +1563,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
> mr->terminates = true;
> mr->destructor = memory_region_destructor_ram;
> mr->align = align;
> - mr->ram_block = qemu_ram_alloc_from_file(size, mr, share, path, errp);
> + mr->ram_block = qemu_ram_alloc_from_file(size, mr, ram_flags, path, errp);
> mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
> }
>
> @@ -1579,7 +1579,9 @@ void memory_region_init_ram_from_fd(MemoryRegion *mr,
> mr->ram = true;
> mr->terminates = true;
> mr->destructor = memory_region_destructor_ram;
> - mr->ram_block = qemu_ram_alloc_from_fd(size, mr, share, fd, errp);
> + mr->ram_block = qemu_ram_alloc_from_fd(size, mr,
> + share ? RAM_SHARED : 0,
> + fd, errp);
> mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
> }
> #endif
> diff --git a/numa.c b/numa.c
> index 33572bf..ba72267 100644
> --- a/numa.c
> +++ b/numa.c
> @@ -479,7 +479,7 @@ static void allocate_system_memory_nonnuma(MemoryRegion *mr, Object *owner,
> if (mem_path) {
> #ifdef __linux__
> Error *err = NULL;
> - memory_region_init_ram_from_file(mr, owner, name, ram_size, 0, false,
> + memory_region_init_ram_from_file(mr, owner, name, ram_size, 0, 0,
> mem_path, &err);
> if (err) {
> error_report_err(err);
^ permalink raw reply [flat|nested] 28+ messages in thread
* [Qemu-devel] [PATCH V6 3/7] hostmem-file: add the 'pmem' option
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 1/7] memory, exec: Expose all memory block related flags junyan.he
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 2/7] memory, exec: switch file ram allocation functions to 'flags' parameters junyan.he
@ 2018-06-01 8:10 ` junyan.he
2018-06-05 11:44 ` Stefan Hajnoczi
2018-06-11 16:02 ` Igor Mammedov
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 4/7] configure: add libpmem support junyan.he
` (6 subsequent siblings)
9 siblings, 2 replies; 28+ messages in thread
From: junyan.he @ 2018-06-01 8:10 UTC (permalink / raw)
To: qemu-devel
Cc: ehabkost, imammedo, pbonzini, crosthwaite.peter, rth,
xiaoguangrong.eric, mst, quintela, dgilbert, stefanha, Junyan He,
Haozhong Zhang
From: Junyan He <junyan.he@intel.com>
When QEMU emulates vNVDIMM labels and migrates vNVDIMM devices, it
needs to know whether the backend storage is a real persistent memory,
in order to decide whether special operations should be performed to
ensure the data persistence.
This boolean option 'pmem' allows users to specify whether the backend
storage of memory-backend-file is a real persistent memory. If
'pmem=on', QEMU will set the flag RAM_PMEM in the RAM block of the
corresponding memory region.
Signed-off-by: Junyan He <junyan.he@intel.com>
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
---
backends/hostmem-file.c | 27 ++++++++++++++++++++++++++-
docs/nvdimm.txt | 14 ++++++++++++++
exec.c | 9 +++++++++
include/exec/memory.h | 6 ++++++
include/exec/ram_addr.h | 3 +++
qemu-options.hx | 7 +++++++
6 files changed, 65 insertions(+), 1 deletion(-)
diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c
index 34c68bb..ccca7a1 100644
--- a/backends/hostmem-file.c
+++ b/backends/hostmem-file.c
@@ -34,6 +34,7 @@ struct HostMemoryBackendFile {
bool discard_data;
char *mem_path;
uint64_t align;
+ bool is_pmem;
};
static void
@@ -59,7 +60,8 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
path,
backend->size, fb->align,
- backend->share ? RAM_SHARED : 0,
+ (backend->share ? RAM_SHARED : 0) |
+ (fb->is_pmem ? RAM_PMEM : 0),
fb->mem_path, errp);
g_free(path);
}
@@ -131,6 +133,26 @@ static void file_memory_backend_set_align(Object *o, Visitor *v,
error_propagate(errp, local_err);
}
+static bool file_memory_backend_get_pmem(Object *o, Error **errp)
+{
+ return MEMORY_BACKEND_FILE(o)->is_pmem;
+}
+
+static void file_memory_backend_set_pmem(Object *o, bool value, Error **errp)
+{
+ HostMemoryBackend *backend = MEMORY_BACKEND(o);
+ HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
+
+ if (host_memory_backend_mr_inited(backend)) {
+ error_setg(errp, "cannot change property 'pmem' of %s '%s'",
+ object_get_typename(o),
+ object_get_canonical_path_component(OBJECT(backend)));
+ return;
+ }
+
+ fb->is_pmem = value;
+}
+
static void file_backend_unparent(Object *obj)
{
HostMemoryBackend *backend = MEMORY_BACKEND(obj);
@@ -162,6 +184,9 @@ file_backend_class_init(ObjectClass *oc, void *data)
file_memory_backend_get_align,
file_memory_backend_set_align,
NULL, NULL, &error_abort);
+ object_class_property_add_bool(oc, "pmem",
+ file_memory_backend_get_pmem, file_memory_backend_set_pmem,
+ &error_abort);
}
static void file_backend_instance_finalize(Object *o)
diff --git a/docs/nvdimm.txt b/docs/nvdimm.txt
index e903d8b..bcb2032 100644
--- a/docs/nvdimm.txt
+++ b/docs/nvdimm.txt
@@ -153,3 +153,17 @@ guest NVDIMM region mapping structure. This unarmed flag indicates
guest software that this vNVDIMM device contains a region that cannot
accept persistent writes. In result, for example, the guest Linux
NVDIMM driver, marks such vNVDIMM device as read-only.
+
+If the vNVDIMM backend is on the host persistent memory that can be
+accessed in SNIA NVM Programming Model [1] (e.g., Intel NVDIMM), it's
+suggested to set the 'pmem' option of memory-backend-file to 'on'. When
+'pmem=on' and QEMU is built with libpmem [2] support (configured with
+--enable-libpmem), QEMU will take necessary operations to guarantee
+the persistence of its own writes to the vNVDIMM backend (e.g., in
+vNVDIMM label emulation and live migration).
+
+References
+----------
+
+[1] SNIA NVM Programming Model: https://www.snia.org/sites/default/files/technical_work/final/NVMProgrammingModel_v1.2.pdf
+[2] PMDK: http://pmem.io/pmdk/
diff --git a/exec.c b/exec.c
index f2082fa..f066705 100644
--- a/exec.c
+++ b/exec.c
@@ -2061,6 +2061,9 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
Error *local_err = NULL;
int64_t file_size;
+ /* Just support these ram flags by now. */
+ assert(ram_flags == 0 || (ram_flags & (RAM_SHARED | RAM_PMEM)));
+
if (xen_enabled()) {
error_setg(errp, "-mem-path not supported with Xen");
return NULL;
@@ -3971,6 +3974,11 @@ err:
return ret;
}
+bool ramblock_is_pmem(RAMBlock *rb)
+{
+ return rb->flags & RAM_PMEM;
+}
+
#endif
void page_size_init(void)
@@ -4069,3 +4077,4 @@ void mtree_print_dispatch(fprintf_function mon, void *f,
}
#endif
+
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 3b68a43..6523512 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -119,6 +119,11 @@ typedef struct IOMMUNotifier IOMMUNotifier;
*/
#define RAM_UF_ZEROPAGE (1 << 3)
+/* QEMU_RAM_PMEM is available on this RAMBlock to specify that the
+ * memory is a persistent kind memory.
+ */
+#define RAM_PMEM (1 << 4)
+
static inline void iommu_notifier_init(IOMMUNotifier *n, IOMMUNotify fn,
IOMMUNotifierFlag flags,
hwaddr start, hwaddr end)
@@ -611,6 +616,7 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
* @ram_flags: specify properties of this memory region, which can be one or
* bit-or of following values:
* - RAM_SHARED: memory must be mmaped with the MAP_SHARED flag
+ * - RAM_PMEM: the backend @path is persistent memory
* Other bits are ignored.
* @path: the path in which to allocate the RAM.
* @errp: pointer to Error*, to store an error if it happens.
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index b478455..722bd1a 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -70,6 +70,8 @@ static inline unsigned long int ramblock_recv_bitmap_offset(void *host_addr,
return host_addr_offset >> TARGET_PAGE_BITS;
}
+bool ramblock_is_pmem(RAMBlock *rb);
+
long qemu_getrampagesize(void);
unsigned long last_ram_page(void);
@@ -84,6 +86,7 @@ unsigned long last_ram_page(void);
* @ram_flags: specify the properties of the ram block, which can be one
* or bit-or of following values
* - RAM_SHARED: mmap the back file or device with MAP_SHARED
+ * - RAM_PMEM: the backend @mem_path or @fd is persistent memory
* Other bits are ignored.
* @mem_path or @fd: specify the back file or device
* @errp: pointer to Error*, to store an error if it happens
diff --git a/qemu-options.hx b/qemu-options.hx
index 2f61ea4..228e154 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4042,6 +4042,13 @@ requires an alignment different than the default one used by QEMU, eg
the device DAX /dev/dax0.0 requires 2M alignment rather than 4K. In
such cases, users can specify the required alignment via this option.
+The @option{pmem} option specifies whether the backend store specified
+by @option{mem-path} is on the persistent memory that can be accessed
+in the SNIA NVM programming model (e.g. Intel NVDIMM).
+If @address@hidden, QEMU will take necessary operations to
+guarantee the persistence of its own writes to @option{mem-path}
+(e.g. in vNVDIMM label emulation and live migration).
+
@item -object memory-backend-ram,id=@var{id},merge=@var{on|off},dump=@var{on|off},share=@var{on|off},prealloc=@var{on|off},size=@var{size},host-nodes=@var{host-nodes},policy=@var{default|preferred|bind|interleave}
Creates a memory backend object, which can be used to back the guest RAM.
--
2.7.4
^ permalink raw reply related [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 3/7] hostmem-file: add the 'pmem' option
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 3/7] hostmem-file: add the 'pmem' option junyan.he
@ 2018-06-05 11:44 ` Stefan Hajnoczi
2018-06-11 16:02 ` Igor Mammedov
1 sibling, 0 replies; 28+ messages in thread
From: Stefan Hajnoczi @ 2018-06-05 11:44 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, Haozhong Zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, Junyan He,
stefanha, pbonzini, imammedo, rth
[-- Attachment #1: Type: text/plain, Size: 1105 bytes --]
On Fri, Jun 01, 2018 at 04:10:25PM +0800, junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> When QEMU emulates vNVDIMM labels and migrates vNVDIMM devices, it
> needs to know whether the backend storage is a real persistent memory,
> in order to decide whether special operations should be performed to
> ensure the data persistence.
>
> This boolean option 'pmem' allows users to specify whether the backend
> storage of memory-backend-file is a real persistent memory. If
> 'pmem=on', QEMU will set the flag RAM_PMEM in the RAM block of the
> corresponding memory region.
>
> Signed-off-by: Junyan He <junyan.he@intel.com>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> ---
> backends/hostmem-file.c | 27 ++++++++++++++++++++++++++-
> docs/nvdimm.txt | 14 ++++++++++++++
> exec.c | 9 +++++++++
> include/exec/memory.h | 6 ++++++
> include/exec/ram_addr.h | 3 +++
> qemu-options.hx | 7 +++++++
> 6 files changed, 65 insertions(+), 1 deletion(-)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 455 bytes --]
^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: [Qemu-devel] [PATCH V6 3/7] hostmem-file: add the 'pmem' option
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 3/7] hostmem-file: add the 'pmem' option junyan.he
2018-06-05 11:44 ` Stefan Hajnoczi
@ 2018-06-11 16:02 ` Igor Mammedov
1 sibling, 0 replies; 28+ messages in thread
From: Igor Mammedov @ 2018-06-11 16:02 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, Haozhong Zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, Junyan He,
stefanha, pbonzini, rth
On Fri, 1 Jun 2018 16:10:25 +0800
junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> When QEMU emulates vNVDIMM labels and migrates vNVDIMM devices, it
> needs to know whether the backend storage is a real persistent memory,
> in order to decide whether special operations should be performed to
> ensure the data persistence.
>
> This boolean option 'pmem' allows users to specify whether the backend
> storage of memory-backend-file is a real persistent memory. If
> 'pmem=on', QEMU will set the flag RAM_PMEM in the RAM block of the
> corresponding memory region.
>
> Signed-off-by: Junyan He <junyan.he@intel.com>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> ---
> backends/hostmem-file.c | 27 ++++++++++++++++++++++++++-
> docs/nvdimm.txt | 14 ++++++++++++++
> exec.c | 9 +++++++++
> include/exec/memory.h | 6 ++++++
> include/exec/ram_addr.h | 3 +++
> qemu-options.hx | 7 +++++++
> 6 files changed, 65 insertions(+), 1 deletion(-)
>
> diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c
> index 34c68bb..ccca7a1 100644
> --- a/backends/hostmem-file.c
> +++ b/backends/hostmem-file.c
> @@ -34,6 +34,7 @@ struct HostMemoryBackendFile {
> bool discard_data;
> char *mem_path;
> uint64_t align;
> + bool is_pmem;
> };
>
> static void
> @@ -59,7 +60,8 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
> memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
> path,
> backend->size, fb->align,
> - backend->share ? RAM_SHARED : 0,
> + (backend->share ? RAM_SHARED : 0) |
> + (fb->is_pmem ? RAM_PMEM : 0),
> fb->mem_path, errp);
> g_free(path);
> }
> @@ -131,6 +133,26 @@ static void file_memory_backend_set_align(Object *o, Visitor *v,
> error_propagate(errp, local_err);
> }
>
> +static bool file_memory_backend_get_pmem(Object *o, Error **errp)
> +{
> + return MEMORY_BACKEND_FILE(o)->is_pmem;
> +}
> +
> +static void file_memory_backend_set_pmem(Object *o, bool value, Error **errp)
> +{
> + HostMemoryBackend *backend = MEMORY_BACKEND(o);
> + HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
> +
> + if (host_memory_backend_mr_inited(backend)) {
> + error_setg(errp, "cannot change property 'pmem' of %s '%s'",
> + object_get_typename(o),
> + object_get_canonical_path_component(OBJECT(backend)));
why not to use 'o' vs backend like on previous line or other way around?
> + return;
> + }
> +
> + fb->is_pmem = value;
> +}
> +
> static void file_backend_unparent(Object *obj)
> {
> HostMemoryBackend *backend = MEMORY_BACKEND(obj);
> @@ -162,6 +184,9 @@ file_backend_class_init(ObjectClass *oc, void *data)
> file_memory_backend_get_align,
> file_memory_backend_set_align,
> NULL, NULL, &error_abort);
> + object_class_property_add_bool(oc, "pmem",
> + file_memory_backend_get_pmem, file_memory_backend_set_pmem,
> + &error_abort);
> }
>
> static void file_backend_instance_finalize(Object *o)
> diff --git a/docs/nvdimm.txt b/docs/nvdimm.txt
> index e903d8b..bcb2032 100644
> --- a/docs/nvdimm.txt
> +++ b/docs/nvdimm.txt
> @@ -153,3 +153,17 @@ guest NVDIMM region mapping structure. This unarmed flag indicates
> guest software that this vNVDIMM device contains a region that cannot
> accept persistent writes. In result, for example, the guest Linux
> NVDIMM driver, marks such vNVDIMM device as read-only.
> +
> +If the vNVDIMM backend is on the host persistent memory that can be
> +accessed in SNIA NVM Programming Model [1] (e.g., Intel NVDIMM), it's
> +suggested to set the 'pmem' option of memory-backend-file to 'on'. When
> +'pmem=on' and QEMU is built with libpmem [2] support (configured with
> +--enable-libpmem), QEMU will take necessary operations to guarantee
> +the persistence of its own writes to the vNVDIMM backend (e.g., in
> +vNVDIMM label emulation and live migration).
> +
> +References
> +----------
> +
> +[1] SNIA NVM Programming Model: https://www.snia.org/sites/default/files/technical_work/final/NVMProgrammingModel_v1.2.pdf
> +[2] PMDK: http://pmem.io/pmdk/
> diff --git a/exec.c b/exec.c
> index f2082fa..f066705 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -2061,6 +2061,9 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
> Error *local_err = NULL;
> int64_t file_size;
>
> + /* Just support these ram flags by now. */
> + assert(ram_flags == 0 || (ram_flags & (RAM_SHARED | RAM_PMEM)));
> +
> if (xen_enabled()) {
> error_setg(errp, "-mem-path not supported with Xen");
> return NULL;
> @@ -3971,6 +3974,11 @@ err:
> return ret;
> }
>
> +bool ramblock_is_pmem(RAMBlock *rb)
> +{
> + return rb->flags & RAM_PMEM;
> +}
> +
> #endif
>
> void page_size_init(void)
> @@ -4069,3 +4077,4 @@ void mtree_print_dispatch(fprintf_function mon, void *f,
> }
>
> #endif
> +
> diff --git a/include/exec/memory.h b/include/exec/memory.h
> index 3b68a43..6523512 100644
> --- a/include/exec/memory.h
> +++ b/include/exec/memory.h
> @@ -119,6 +119,11 @@ typedef struct IOMMUNotifier IOMMUNotifier;
> */
> #define RAM_UF_ZEROPAGE (1 << 3)
>
> +/* QEMU_RAM_PMEM is available on this RAMBlock to specify that the
> + * memory is a persistent kind memory.
> + */
> +#define RAM_PMEM (1 << 4)
> +
> static inline void iommu_notifier_init(IOMMUNotifier *n, IOMMUNotify fn,
> IOMMUNotifierFlag flags,
> hwaddr start, hwaddr end)
> @@ -611,6 +616,7 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr,
> * @ram_flags: specify properties of this memory region, which can be one or
> * bit-or of following values:
> * - RAM_SHARED: memory must be mmaped with the MAP_SHARED flag
> + * - RAM_PMEM: the backend @path is persistent memory
not sure that we need to mention backend in general API, maybe would be better:
- RAM_PMEM: memory is persistent memory
and in other places the same
> * Other bits are ignored.
> * @path: the path in which to allocate the RAM.
> * @errp: pointer to Error*, to store an error if it happens.
> diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
> index b478455..722bd1a 100644
> --- a/include/exec/ram_addr.h
> +++ b/include/exec/ram_addr.h
> @@ -70,6 +70,8 @@ static inline unsigned long int ramblock_recv_bitmap_offset(void *host_addr,
> return host_addr_offset >> TARGET_PAGE_BITS;
> }
>
> +bool ramblock_is_pmem(RAMBlock *rb);
> +
> long qemu_getrampagesize(void);
> unsigned long last_ram_page(void);
>
> @@ -84,6 +86,7 @@ unsigned long last_ram_page(void);
> * @ram_flags: specify the properties of the ram block, which can be one
> * or bit-or of following values
> * - RAM_SHARED: mmap the back file or device with MAP_SHARED
> + * - RAM_PMEM: the backend @mem_path or @fd is persistent memory
> * Other bits are ignored.
> * @mem_path or @fd: specify the back file or device
> * @errp: pointer to Error*, to store an error if it happens
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 2f61ea4..228e154 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -4042,6 +4042,13 @@ requires an alignment different than the default one used by QEMU, eg
> the device DAX /dev/dax0.0 requires 2M alignment rather than 4K. In
> such cases, users can specify the required alignment via this option.
>
> +The @option{pmem} option specifies whether the backend store specified
s/backend store/backing file/
> +by @option{mem-path} is on the persistent memory that can be accessed
> +in the SNIA NVM programming model (e.g. Intel NVDIMM).
s/in/using/
> +If @address@hidden, QEMU will take necessary operations to
^^^^^^^^^^^^^^^ I don't get it, could you clarify?
> +guarantee the persistence of its own writes to @option{mem-path}
> +(e.g. in vNVDIMM label emulation and live migration).
> +
> @item -object memory-backend-ram,id=@var{id},merge=@var{on|off},dump=@var{on|off},share=@var{on|off},prealloc=@var{on|off},size=@var{size},host-nodes=@var{host-nodes},policy=@var{default|preferred|bind|interleave}
>
> Creates a memory backend object, which can be used to back the guest RAM.
^ permalink raw reply [flat|nested] 28+ messages in thread
* [Qemu-devel] [PATCH V6 4/7] configure: add libpmem support
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
` (2 preceding siblings ...)
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 3/7] hostmem-file: add the 'pmem' option junyan.he
@ 2018-06-01 8:10 ` junyan.he
2018-06-05 11:41 ` Stefan Hajnoczi
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation junyan.he
` (5 subsequent siblings)
9 siblings, 1 reply; 28+ messages in thread
From: junyan.he @ 2018-06-01 8:10 UTC (permalink / raw)
To: qemu-devel
Cc: ehabkost, imammedo, pbonzini, crosthwaite.peter, rth,
xiaoguangrong.eric, mst, quintela, dgilbert, stefanha, Junyan He,
Haozhong Zhang
From: Junyan He <junyan.he@intel.com>
Add a pair of configure options --{enable,disable}-libpmem to control
whether QEMU is compiled with PMDK libpmem [1].
QEMU may write to the host persistent memory (e.g. in vNVDIMM label
emulation and live migration), so it must take the proper operations
to ensure the persistence of its own writes. Depending on the CPU
models and available instructions, the optimal operation can vary [2].
PMDK libpmem have already implemented those operations on multiple CPU
models (x86 and ARM) and the logic to select the optimal ones, so QEMU
can just use libpmem rather than re-implement them.
[1] PMDK (formerly known as NMVL), https://github.com/pmem/pmdk/
[2] https://github.com/pmem/pmdk/blob/38bfa652721a37fd94c0130ce0e3f5d8baa3ed40/src/libpmem/pmem.c#L33
Signed-off-by: Junyan He <junyan.he@intel.com>
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
---
configure | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/configure b/configure
index a6a4616..f44d669 100755
--- a/configure
+++ b/configure
@@ -456,6 +456,7 @@ jemalloc="no"
replication="yes"
vxhs=""
libxml2=""
+libpmem=""
supported_cpu="no"
supported_os="no"
@@ -1381,6 +1382,10 @@ for opt do
;;
--disable-git-update) git_update=no
;;
+ --enable-libpmem) libpmem=yes
+ ;;
+ --disable-libpmem) libpmem=no
+ ;;
*)
echo "ERROR: unknown option $opt"
echo "Try '$0 --help' for more information"
@@ -1638,6 +1643,7 @@ disabled with --disable-FEATURE, default is enabled if available:
crypto-afalg Linux AF_ALG crypto backend driver
vhost-user vhost-user support
capstone capstone disassembler support
+ libpmem libpmem support
NOTE: The object files are built at the place where configure is launched
EOF
@@ -5445,6 +5451,24 @@ EOF
fi
##########################################
+# check for libpmem
+
+if test "$libpmem" != "no"; then
+ if $pkg_config --exists "libpmem"; then
+ libpmem="yes"
+ libpmem_libs=$($pkg_config --libs libpmem)
+ libpmem_cflags=$($pkg_config --cflags libpmem)
+ libs_softmmu="$libs_softmmu $libpmem_libs"
+ QEMU_CFLAGS="$QEMU_CFLAGS $libpmem_cflags"
+ else
+ if test "$libpmem" = "yes" ; then
+ feature_not_found "libpmem" "Install nvml or pmdk"
+ fi
+ libpmem="no"
+ fi
+fi
+
+##########################################
# End of CC checks
# After here, no more $cc or $ld runs
@@ -5907,6 +5931,7 @@ echo "avx2 optimization $avx2_opt"
echo "replication support $replication"
echo "VxHS block device $vxhs"
echo "capstone $capstone"
+echo "libpmem support $libpmem"
if test "$sdl_too_old" = "yes"; then
echo "-> Your SDL version is too old - please upgrade to have SDL support"
@@ -6651,6 +6676,10 @@ if test "$vxhs" = "yes" ; then
echo "VXHS_LIBS=$vxhs_libs" >> $config_host_mak
fi
+if test "$libpmem" = "yes" ; then
+ echo "CONFIG_LIBPMEM=y" >> $config_host_mak
+fi
+
if test "$tcg_interpreter" = "yes"; then
QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
elif test "$ARCH" = "sparc64" ; then
--
2.7.4
^ permalink raw reply related [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 4/7] configure: add libpmem support
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 4/7] configure: add libpmem support junyan.he
@ 2018-06-05 11:41 ` Stefan Hajnoczi
0 siblings, 0 replies; 28+ messages in thread
From: Stefan Hajnoczi @ 2018-06-05 11:41 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, Haozhong Zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, Junyan He,
stefanha, pbonzini, imammedo, rth
[-- Attachment #1: Type: text/plain, Size: 1168 bytes --]
On Fri, Jun 01, 2018 at 04:10:26PM +0800, junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> Add a pair of configure options --{enable,disable}-libpmem to control
> whether QEMU is compiled with PMDK libpmem [1].
>
> QEMU may write to the host persistent memory (e.g. in vNVDIMM label
> emulation and live migration), so it must take the proper operations
> to ensure the persistence of its own writes. Depending on the CPU
> models and available instructions, the optimal operation can vary [2].
> PMDK libpmem have already implemented those operations on multiple CPU
> models (x86 and ARM) and the logic to select the optimal ones, so QEMU
> can just use libpmem rather than re-implement them.
>
> [1] PMDK (formerly known as NMVL), https://github.com/pmem/pmdk/
> [2] https://github.com/pmem/pmdk/blob/38bfa652721a37fd94c0130ce0e3f5d8baa3ed40/src/libpmem/pmem.c#L33
>
> Signed-off-by: Junyan He <junyan.he@intel.com>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> ---
> configure | 29 +++++++++++++++++++++++++++++
> 1 file changed, 29 insertions(+)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 28+ messages in thread
* [Qemu-devel] [PATCH V6 5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
` (3 preceding siblings ...)
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 4/7] configure: add libpmem support junyan.he
@ 2018-06-01 8:10 ` junyan.he
2018-06-05 11:44 ` Stefan Hajnoczi
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 6/7] migration/ram: Add check and info message to nvdimm post copy junyan.he
` (4 subsequent siblings)
9 siblings, 1 reply; 28+ messages in thread
From: junyan.he @ 2018-06-01 8:10 UTC (permalink / raw)
To: qemu-devel
Cc: ehabkost, imammedo, pbonzini, crosthwaite.peter, rth,
xiaoguangrong.eric, mst, quintela, dgilbert, stefanha, Junyan He,
Haozhong Zhang
From: Junyan He <junyan.he@intel.com>
Guest writes to vNVDIMM labels are intercepted and performed on the
backend by QEMU. When the backend is a real persistent memort, QEMU
needs to take proper operations to ensure its write persistence on the
persistent memory. Otherwise, a host power failure may result in the
loss of guest label configurations.
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
---
hw/mem/nvdimm.c | 9 ++++++++-
include/qemu/pmem.h | 23 +++++++++++++++++++++++
stubs/Makefile.objs | 1 +
stubs/pmem.c | 19 +++++++++++++++++++
4 files changed, 51 insertions(+), 1 deletion(-)
create mode 100644 include/qemu/pmem.h
create mode 100644 stubs/pmem.c
diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c
index 4087aca..03b478e 100644
--- a/hw/mem/nvdimm.c
+++ b/hw/mem/nvdimm.c
@@ -23,6 +23,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/pmem.h"
#include "qapi/error.h"
#include "qapi/visitor.h"
#include "hw/mem/nvdimm.h"
@@ -155,11 +156,17 @@ static void nvdimm_write_label_data(NVDIMMDevice *nvdimm, const void *buf,
{
MemoryRegion *mr;
PCDIMMDevice *dimm = PC_DIMM(nvdimm);
+ bool is_pmem = object_property_get_bool(OBJECT(dimm->hostmem),
+ "pmem", NULL);
uint64_t backend_offset;
nvdimm_validate_rw_label_data(nvdimm, size, offset);
- memcpy(nvdimm->label_data + offset, buf, size);
+ if (!is_pmem) {
+ memcpy(nvdimm->label_data + offset, buf, size);
+ } else {
+ pmem_memcpy_persist(nvdimm->label_data + offset, buf, size);
+ }
mr = host_memory_backend_get_memory(dimm->hostmem, &error_abort);
backend_offset = memory_region_size(mr) - nvdimm->label_size + offset;
diff --git a/include/qemu/pmem.h b/include/qemu/pmem.h
new file mode 100644
index 0000000..00d6680
--- /dev/null
+++ b/include/qemu/pmem.h
@@ -0,0 +1,23 @@
+/*
+ * QEMU header file for libpmem.
+ *
+ * Copyright (c) 2018 Intel Corporation.
+ *
+ * Author: Haozhong Zhang <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef QEMU_PMEM_H
+#define QEMU_PMEM_H
+
+#ifdef CONFIG_LIBPMEM
+#include <libpmem.h>
+#else /* !CONFIG_LIBPMEM */
+
+void *pmem_memcpy_persist(void *pmemdest, const void *src, size_t len);
+
+#endif /* CONFIG_LIBPMEM */
+
+#endif /* !QEMU_PMEM_H */
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index 53d3f32..be9a042 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -43,3 +43,4 @@ stub-obj-y += xen-common.o
stub-obj-y += xen-hvm.o
stub-obj-y += pci-host-piix.o
stub-obj-y += ram-block.o
+stub-obj-$(call lnot,$(CONFIG_LIBPMEM)) += pmem.o
\ No newline at end of file
diff --git a/stubs/pmem.c b/stubs/pmem.c
new file mode 100644
index 0000000..b4ec72d
--- /dev/null
+++ b/stubs/pmem.c
@@ -0,0 +1,19 @@
+/*
+ * Stubs for libpmem.
+ *
+ * Copyright (c) 2018 Intel Corporation.
+ *
+ * Author: Haozhong Zhang <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <string.h>
+
+#include "qemu/pmem.h"
+
+void *pmem_memcpy_persist(void *pmemdest, const void *src, size_t len)
+{
+ return memcpy(pmemdest, src, len);
+}
--
2.7.4
^ permalink raw reply related [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation junyan.he
@ 2018-06-05 11:44 ` Stefan Hajnoczi
0 siblings, 0 replies; 28+ messages in thread
From: Stefan Hajnoczi @ 2018-06-05 11:44 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, Haozhong Zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, Junyan He,
stefanha, pbonzini, imammedo, rth
[-- Attachment #1: Type: text/plain, Size: 869 bytes --]
On Fri, Jun 01, 2018 at 04:10:27PM +0800, junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> Guest writes to vNVDIMM labels are intercepted and performed on the
> backend by QEMU. When the backend is a real persistent memort, QEMU
> needs to take proper operations to ensure its write persistence on the
> persistent memory. Otherwise, a host power failure may result in the
> loss of guest label configurations.
>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> ---
> hw/mem/nvdimm.c | 9 ++++++++-
> include/qemu/pmem.h | 23 +++++++++++++++++++++++
> stubs/Makefile.objs | 1 +
> stubs/pmem.c | 19 +++++++++++++++++++
> 4 files changed, 51 insertions(+), 1 deletion(-)
> create mode 100644 include/qemu/pmem.h
> create mode 100644 stubs/pmem.c
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 28+ messages in thread
* [Qemu-devel] [PATCH V6 6/7] migration/ram: Add check and info message to nvdimm post copy.
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
` (4 preceding siblings ...)
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation junyan.he
@ 2018-06-01 8:10 ` junyan.he
2018-06-05 11:44 ` Stefan Hajnoczi
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 7/7] migration/ram: ensure write persistence on loading all data to PMEM junyan.he
` (3 subsequent siblings)
9 siblings, 1 reply; 28+ messages in thread
From: junyan.he @ 2018-06-01 8:10 UTC (permalink / raw)
To: qemu-devel
Cc: ehabkost, imammedo, pbonzini, crosthwaite.peter, rth,
xiaoguangrong.eric, mst, quintela, dgilbert, stefanha, Junyan He
From: Junyan He <junyan.he@intel.com>
The nvdimm kind memory does not support post copy now.
We disable post copy if we have nvdimm memory and print some
log hint to user.
Signed-off-by: Junyan He <junyan.he@intel.com>
---
migration/ram.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/migration/ram.c b/migration/ram.c
index c53e836..aa0c6f0 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -3397,6 +3397,15 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
static bool ram_has_postcopy(void *opaque)
{
+ RAMBlock *rb;
+ RAMBLOCK_FOREACH(rb) {
+ if (ramblock_is_pmem(rb)) {
+ info_report("Block: %s, host: %p is a nvdimm memory, postcopy"
+ "is not supported now!", rb->idstr, rb->host);
+ return false;
+ }
+ }
+
return migrate_postcopy_ram();
}
--
2.7.4
^ permalink raw reply related [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 6/7] migration/ram: Add check and info message to nvdimm post copy.
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 6/7] migration/ram: Add check and info message to nvdimm post copy junyan.he
@ 2018-06-05 11:44 ` Stefan Hajnoczi
0 siblings, 0 replies; 28+ messages in thread
From: Stefan Hajnoczi @ 2018-06-05 11:44 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, xiaoguangrong.eric, crosthwaite.peter, mst, dgilbert,
ehabkost, quintela, Junyan He, stefanha, pbonzini, imammedo, rth
[-- Attachment #1: Type: text/plain, Size: 441 bytes --]
On Fri, Jun 01, 2018 at 04:10:28PM +0800, junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> The nvdimm kind memory does not support post copy now.
> We disable post copy if we have nvdimm memory and print some
> log hint to user.
>
> Signed-off-by: Junyan He <junyan.he@intel.com>
> ---
> migration/ram.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 455 bytes --]
^ permalink raw reply [flat|nested] 28+ messages in thread
* [Qemu-devel] [PATCH V6 7/7] migration/ram: ensure write persistence on loading all data to PMEM.
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
` (5 preceding siblings ...)
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 6/7] migration/ram: Add check and info message to nvdimm post copy junyan.he
@ 2018-06-01 8:10 ` junyan.he
2018-06-05 11:44 ` Stefan Hajnoczi
2018-06-01 8:27 ` [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory no-reply
` (2 subsequent siblings)
9 siblings, 1 reply; 28+ messages in thread
From: junyan.he @ 2018-06-01 8:10 UTC (permalink / raw)
To: qemu-devel
Cc: ehabkost, imammedo, pbonzini, crosthwaite.peter, rth,
xiaoguangrong.eric, mst, quintela, dgilbert, stefanha, Junyan He
From: Junyan He <junyan.he@intel.com>
Because we need to make sure the pmem kind memory data is synced
after migration, we choose to call pmem_persist() when the migration
finish. This will make sure the data of pmem is safe and will not
lose if power is off.
Signed-off-by: Junyan He <junyan.he@intel.com>
---
include/qemu/pmem.h | 1 +
migration/ram.c | 8 ++++++++
stubs/pmem.c | 4 ++++
3 files changed, 13 insertions(+)
diff --git a/include/qemu/pmem.h b/include/qemu/pmem.h
index 00d6680..b1e1b5c 100644
--- a/include/qemu/pmem.h
+++ b/include/qemu/pmem.h
@@ -17,6 +17,7 @@
#else /* !CONFIG_LIBPMEM */
void *pmem_memcpy_persist(void *pmemdest, const void *src, size_t len);
+void *pmem_persist(const void *addr, size_t len);
#endif /* CONFIG_LIBPMEM */
diff --git a/migration/ram.c b/migration/ram.c
index aa0c6f0..09525b2 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -33,6 +33,7 @@
#include "qemu/bitops.h"
#include "qemu/bitmap.h"
#include "qemu/main-loop.h"
+#include "qemu/pmem.h"
#include "xbzrle.h"
#include "ram.h"
#include "migration.h"
@@ -3046,6 +3047,13 @@ static int ram_load_setup(QEMUFile *f, void *opaque)
static int ram_load_cleanup(void *opaque)
{
RAMBlock *rb;
+
+ RAMBLOCK_FOREACH(rb) {
+ if (ramblock_is_pmem(rb)) {
+ pmem_persist(rb->host, rb->used_length);
+ }
+ }
+
xbzrle_load_cleanup();
compress_threads_load_cleanup();
diff --git a/stubs/pmem.c b/stubs/pmem.c
index b4ec72d..c5bc6d6 100644
--- a/stubs/pmem.c
+++ b/stubs/pmem.c
@@ -17,3 +17,7 @@ void *pmem_memcpy_persist(void *pmemdest, const void *src, size_t len)
{
return memcpy(pmemdest, src, len);
}
+
+void *pmem_persist(const void *addr, size_t len)
+{
+}
--
2.7.4
^ permalink raw reply related [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 7/7] migration/ram: ensure write persistence on loading all data to PMEM.
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 7/7] migration/ram: ensure write persistence on loading all data to PMEM junyan.he
@ 2018-06-05 11:44 ` Stefan Hajnoczi
2018-06-07 10:42 ` Dr. David Alan Gilbert
0 siblings, 1 reply; 28+ messages in thread
From: Stefan Hajnoczi @ 2018-06-05 11:44 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, xiaoguangrong.eric, crosthwaite.peter, mst, dgilbert,
ehabkost, quintela, Junyan He, stefanha, pbonzini, imammedo, rth
[-- Attachment #1: Type: text/plain, Size: 826 bytes --]
On Fri, Jun 01, 2018 at 04:10:29PM +0800, junyan.he@gmx.com wrote:
> diff --git a/migration/ram.c b/migration/ram.c
> index aa0c6f0..09525b2 100644
> --- a/migration/ram.c
> +++ b/migration/ram.c
> @@ -33,6 +33,7 @@
> #include "qemu/bitops.h"
> #include "qemu/bitmap.h"
> #include "qemu/main-loop.h"
> +#include "qemu/pmem.h"
> #include "xbzrle.h"
> #include "ram.h"
> #include "migration.h"
> @@ -3046,6 +3047,13 @@ static int ram_load_setup(QEMUFile *f, void *opaque)
> static int ram_load_cleanup(void *opaque)
> {
> RAMBlock *rb;
> +
> + RAMBLOCK_FOREACH(rb) {
> + if (ramblock_is_pmem(rb)) {
> + pmem_persist(rb->host, rb->used_length);
> + }
Indentation is off. This can be fixed by the maintainer who merges
these patches.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 455 bytes --]
^ permalink raw reply [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 7/7] migration/ram: ensure write persistence on loading all data to PMEM.
2018-06-05 11:44 ` Stefan Hajnoczi
@ 2018-06-07 10:42 ` Dr. David Alan Gilbert
0 siblings, 0 replies; 28+ messages in thread
From: Dr. David Alan Gilbert @ 2018-06-07 10:42 UTC (permalink / raw)
To: Stefan Hajnoczi
Cc: junyan.he, qemu-devel, xiaoguangrong.eric, crosthwaite.peter,
mst, ehabkost, quintela, Junyan He, stefanha, pbonzini, imammedo,
rth
* Stefan Hajnoczi (stefanha@gmail.com) wrote:
> On Fri, Jun 01, 2018 at 04:10:29PM +0800, junyan.he@gmx.com wrote:
> > diff --git a/migration/ram.c b/migration/ram.c
> > index aa0c6f0..09525b2 100644
> > --- a/migration/ram.c
> > +++ b/migration/ram.c
> > @@ -33,6 +33,7 @@
> > #include "qemu/bitops.h"
> > #include "qemu/bitmap.h"
> > #include "qemu/main-loop.h"
> > +#include "qemu/pmem.h"
> > #include "xbzrle.h"
> > #include "ram.h"
> > #include "migration.h"
> > @@ -3046,6 +3047,13 @@ static int ram_load_setup(QEMUFile *f, void *opaque)
> > static int ram_load_cleanup(void *opaque)
> > {
> > RAMBlock *rb;
> > +
> > + RAMBLOCK_FOREACH(rb) {
> > + if (ramblock_is_pmem(rb)) {
> > + pmem_persist(rb->host, rb->used_length);
> > + }
>
> Indentation is off. This can be fixed by the maintainer who merges
> these patches.
>
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
The other thing that needs a fixup for is RAMBLOCK_FOREACH_MIGRATABLE
that recently got merged.
Dave
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
` (6 preceding siblings ...)
2018-06-01 8:10 ` [Qemu-devel] [PATCH V6 7/7] migration/ram: ensure write persistence on loading all data to PMEM junyan.he
@ 2018-06-01 8:27 ` no-reply
2018-06-07 13:50 ` Stefan Hajnoczi
2018-06-01 8:33 ` no-reply
2018-06-12 12:06 ` Igor Mammedov
9 siblings, 1 reply; 28+ messages in thread
From: no-reply @ 2018-06-01 8:27 UTC (permalink / raw)
To: junyan.he
Cc: famz, qemu-devel, haozhong.zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, junyan.he,
stefanha, pbonzini, imammedo, rth
Hi,
This series failed docker-mingw@fedora build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.
Type: series
Message-id: 1527840629-18648-1-git-send-email-junyan.he@gmx.com
Subject: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
=== TEST SCRIPT BEGIN ===
#!/bin/bash
set -e
git submodule update --init dtc
# Let docker tests dump environment info
export SHOW_ENV=1
export J=8
time make docker-test-mingw@fedora
=== TEST SCRIPT END ===
Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
4ddbee3d9b migration/ram: ensure write persistence on loading all data to PMEM.
1e8b882644 migration/ram: Add check and info message to nvdimm post copy.
fbc70b5463 mem/nvdimm: ensure write persistence to PMEM in label emulation
10e5fa15d3 configure: add libpmem support
8f7f12852b hostmem-file: add the 'pmem' option
ab99d47fbf memory, exec: switch file ram allocation functions to 'flags' parameters
08c1d813ef memory, exec: Expose all memory block related flags.
=== OUTPUT BEGIN ===
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Cloning into '/var/tmp/patchew-tester-tmp-4kz3s9ce/src/dtc'...
Submodule path 'dtc': checked out 'e54388015af1fb4bf04d0bca99caba1074d9cc42'
BUILD fedora
make[1]: Entering directory '/var/tmp/patchew-tester-tmp-4kz3s9ce/src'
GEN /var/tmp/patchew-tester-tmp-4kz3s9ce/src/docker-src.2018-06-01-04.25.22.560/qemu.tar
Cloning into '/var/tmp/patchew-tester-tmp-4kz3s9ce/src/docker-src.2018-06-01-04.25.22.560/qemu.tar.vroot'...
done.
Your branch is up-to-date with 'origin/test'.
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Cloning into '/var/tmp/patchew-tester-tmp-4kz3s9ce/src/docker-src.2018-06-01-04.25.22.560/qemu.tar.vroot/dtc'...
Submodule path 'dtc': checked out 'e54388015af1fb4bf04d0bca99caba1074d9cc42'
Submodule 'ui/keycodemapdb' (git://git.qemu.org/keycodemapdb.git) registered for path 'ui/keycodemapdb'
Cloning into '/var/tmp/patchew-tester-tmp-4kz3s9ce/src/docker-src.2018-06-01-04.25.22.560/qemu.tar.vroot/ui/keycodemapdb'...
Submodule path 'ui/keycodemapdb': checked out '6b3d716e2b6472eb7189d3220552280ef3d832ce'
COPY RUNNER
RUN test-mingw in qemu:fedora
Packages installed:
PyYAML-3.12-5.fc27.x86_64
SDL2-devel-2.0.7-2.fc27.x86_64
bc-1.07.1-3.fc27.x86_64
bison-3.0.4-8.fc27.x86_64
bluez-libs-devel-5.48-3.fc27.x86_64
brlapi-devel-0.6.6-8.fc27.x86_64
bzip2-1.0.6-24.fc27.x86_64
bzip2-devel-1.0.6-24.fc27.x86_64
ccache-3.3.6-1.fc27.x86_64
clang-5.0.1-5.fc27.x86_64
device-mapper-multipath-devel-0.7.1-9.git847cc43.fc27.x86_64
findutils-4.6.0-16.fc27.x86_64
flex-2.6.1-5.fc27.x86_64
gcc-7.3.1-5.fc27.x86_64
gcc-c++-7.3.1-5.fc27.x86_64
gettext-0.19.8.1-12.fc27.x86_64
git-2.14.3-3.fc27.x86_64
glib2-devel-2.54.3-2.fc27.x86_64
glusterfs-api-devel-3.12.7-1.fc27.x86_64
gnutls-devel-3.5.18-2.fc27.x86_64
gtk3-devel-3.22.26-2.fc27.x86_64
hostname-3.18-4.fc27.x86_64
libaio-devel-0.3.110-9.fc27.x86_64
libasan-7.3.1-5.fc27.x86_64
libattr-devel-2.4.47-21.fc27.x86_64
libcap-devel-2.25-7.fc27.x86_64
libcap-ng-devel-0.7.8-5.fc27.x86_64
libcurl-devel-7.55.1-10.fc27.x86_64
libfdt-devel-1.4.6-1.fc27.x86_64
libpng-devel-1.6.31-1.fc27.x86_64
librbd-devel-12.2.4-1.fc27.x86_64
libssh2-devel-1.8.0-5.fc27.x86_64
libubsan-7.3.1-5.fc27.x86_64
libusbx-devel-1.0.21-4.fc27.x86_64
libxml2-devel-2.9.7-1.fc27.x86_64
llvm-5.0.1-6.fc27.x86_64
lzo-devel-2.08-11.fc27.x86_64
make-4.2.1-4.fc27.x86_64
mingw32-SDL-1.2.15-9.fc27.noarch
mingw32-bzip2-1.0.6-9.fc27.noarch
mingw32-curl-7.54.1-2.fc27.noarch
mingw32-glib2-2.54.1-1.fc27.noarch
mingw32-gmp-6.1.2-2.fc27.noarch
mingw32-gnutls-3.5.13-2.fc27.noarch
mingw32-gtk2-2.24.31-4.fc27.noarch
mingw32-gtk3-3.22.16-1.fc27.noarch
mingw32-libjpeg-turbo-1.5.1-3.fc27.noarch
mingw32-libpng-1.6.29-2.fc27.noarch
mingw32-libssh2-1.8.0-3.fc27.noarch
mingw32-libtasn1-4.13-1.fc27.noarch
mingw32-nettle-3.3-3.fc27.noarch
mingw32-pixman-0.34.0-3.fc27.noarch
mingw32-pkg-config-0.28-9.fc27.x86_64
mingw64-SDL-1.2.15-9.fc27.noarch
mingw64-bzip2-1.0.6-9.fc27.noarch
mingw64-curl-7.54.1-2.fc27.noarch
mingw64-glib2-2.54.1-1.fc27.noarch
mingw64-gmp-6.1.2-2.fc27.noarch
mingw64-gnutls-3.5.13-2.fc27.noarch
mingw64-gtk2-2.24.31-4.fc27.noarch
mingw64-gtk3-3.22.16-1.fc27.noarch
mingw64-libjpeg-turbo-1.5.1-3.fc27.noarch
mingw64-libpng-1.6.29-2.fc27.noarch
mingw64-libssh2-1.8.0-3.fc27.noarch
mingw64-libtasn1-4.13-1.fc27.noarch
mingw64-nettle-3.3-3.fc27.noarch
mingw64-pixman-0.34.0-3.fc27.noarch
mingw64-pkg-config-0.28-9.fc27.x86_64
ncurses-devel-6.0-13.20170722.fc27.x86_64
nettle-devel-3.4-1.fc27.x86_64
nss-devel-3.36.0-1.0.fc27.x86_64
numactl-devel-2.0.11-5.fc27.x86_64
package libjpeg-devel is not installed
perl-5.26.1-403.fc27.x86_64
pixman-devel-0.34.0-4.fc27.x86_64
python3-3.6.2-13.fc27.x86_64
snappy-devel-1.1.4-5.fc27.x86_64
sparse-0.5.1-2.fc27.x86_64
spice-server-devel-0.14.0-1.fc27.x86_64
systemtap-sdt-devel-3.2-3.fc27.x86_64
tar-1.29-7.fc27.x86_64
usbredir-devel-0.7.1-5.fc27.x86_64
virglrenderer-devel-0.6.0-3.20170210git76b3da97b.fc27.x86_64
vte3-devel-0.36.5-5.fc27.x86_64
which-2.21-4.fc27.x86_64
xen-devel-4.9.1-5.fc27.x86_64
zlib-devel-1.2.11-4.fc27.x86_64
Environment variables:
TARGET_LIST=
PACKAGES=ccache gettext git tar PyYAML sparse flex bison python3 bzip2 hostname gcc gcc-c++ llvm clang make perl which bc findutils glib2-devel libaio-devel pixman-devel zlib-devel libfdt-devel libasan libubsan bluez-libs-devel brlapi-devel bzip2-devel device-mapper-multipath-devel glusterfs-api-devel gnutls-devel gtk3-devel libattr-devel libcap-devel libcap-ng-devel libcurl-devel libjpeg-devel libpng-devel librbd-devel libssh2-devel libusbx-devel libxml2-devel lzo-devel ncurses-devel nettle-devel nss-devel numactl-devel SDL2-devel snappy-devel spice-server-devel systemtap-sdt-devel usbredir-devel virglrenderer-devel vte3-devel xen-devel mingw32-pixman mingw32-glib2 mingw32-gmp mingw32-SDL mingw32-pkg-config mingw32-gtk2 mingw32-gtk3 mingw32-gnutls mingw32-nettle mingw32-libtasn1 mingw32-libjpeg-turbo mingw32-libpng mingw32-curl mingw32-libssh2 mingw32-bzip2 mingw64-pixman mingw64-glib2 mingw64-gmp mingw64-SDL mingw64-pkg-config mingw64-gtk2 mingw64-gtk3 mingw64-gnutls mingw64-nettle mingw64-libtasn1 mingw64-libjpeg-turbo mingw64-libpng mingw64-curl mingw64-libssh2 mingw64-bzip2
J=8
V=
HOSTNAME=faf4cb6900c6
DEBUG=
SHOW_ENV=1
PWD=/
HOME=/root
CCACHE_DIR=/var/tmp/ccache
DISTTAG=f27container
QEMU_CONFIGURE_OPTS=--python=/usr/bin/python3
FGC=f27
TEST_DIR=/tmp/qemu-test
SHLVL=1
FEATURES=mingw clang pyyaml asan dtc
PATH=/usr/lib/ccache:/usr/lib64/ccache:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
MAKEFLAGS= -j8
EXTRA_CONFIGURE_OPTS=
_=/usr/bin/env
Configure options:
--enable-werror --target-list=x86_64-softmmu,aarch64-softmmu --prefix=/tmp/qemu-test/install --python=/usr/bin/python3 --cross-prefix=x86_64-w64-mingw32- --enable-trace-backends=simple --enable-gnutls --enable-nettle --enable-curl --enable-vnc --enable-bzip2 --enable-guest-agent --with-sdlabi=1.2 --with-gtkabi=2.0
Install prefix /tmp/qemu-test/install
BIOS directory /tmp/qemu-test/install
firmware path /tmp/qemu-test/install/share/qemu-firmware
binary directory /tmp/qemu-test/install
library directory /tmp/qemu-test/install/lib
module directory /tmp/qemu-test/install/lib
libexec directory /tmp/qemu-test/install/libexec
include directory /tmp/qemu-test/install/include
config directory /tmp/qemu-test/install
local state directory queried at runtime
Windows SDK no
Source path /tmp/qemu-test/src
GIT binary git
GIT submodules
C compiler x86_64-w64-mingw32-gcc
Host C compiler cc
C++ compiler x86_64-w64-mingw32-g++
Objective-C compiler clang
ARFLAGS rv
CFLAGS -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g
QEMU_CFLAGS -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/pixman-1 -I$(SRC_PATH)/dtc/libfdt -Werror -DHAS_LIBSSH2_SFTP_FSYNC -mms-bitfields -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/glib-2.0 -I/usr/x86_64-w64-mingw32/sys-root/mingw/lib/glib-2.0/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -m64 -mcx16 -mthreads -D__USE_MINGW_ANSI_STDIO=1 -DWIN32_LEAN_AND_MEAN -DWINVER=0x501 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/p11-kit-1 -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/libpng16
LDFLAGS -Wl,--nxcompat -Wl,--no-seh -Wl,--dynamicbase -Wl,--warn-common -m64 -g
QEMU_LDFLAGS -L$(BUILD_DIR)/dtc/libfdt
make make
install install
python /usr/bin/python3 -B
smbd /usr/sbin/smbd
module support no
host CPU x86_64
host big endian no
target list x86_64-softmmu aarch64-softmmu
gprof enabled no
sparse enabled no
strip binaries yes
profiler no
static build no
SDL support yes (1.2.15)
GTK support yes (2.24.31)
GTK GL support no
VTE support no
TLS priority NORMAL
GNUTLS support yes
GNUTLS rnd yes
libgcrypt no
libgcrypt kdf no
nettle yes (3.3)
nettle kdf yes
libtasn1 yes
curses support no
virgl support no
curl support yes
mingw32 support yes
Audio drivers dsound
Block whitelist (rw)
Block whitelist (ro)
VirtFS support no
Multipath support no
VNC support yes
VNC SASL support no
VNC JPEG support yes
VNC PNG support yes
xen support no
brlapi support no
bluez support no
Documentation no
PIE no
vde support no
netmap support no
Linux AIO support no
ATTR/XATTR support no
Install blobs yes
KVM support no
HAX support yes
HVF support no
WHPX support no
TCG support yes
TCG debug enabled no
TCG interpreter no
malloc trim support no
RDMA support no
fdt support git
membarrier no
preadv support no
fdatasync no
madvise no
posix_madvise no
posix_memalign no
libcap-ng support no
vhost-net support no
vhost-crypto support no
vhost-scsi support no
vhost-vsock support no
vhost-user support no
Trace backends simple
Trace output file trace-<pid>
spice support no
rbd support no
xfsctl support no
smartcard support no
libusb no
usb net redir no
OpenGL support no
OpenGL dmabufs no
libiscsi support no
libnfs support no
build guest agent yes
QGA VSS support no
QGA w32 disk info yes
QGA MSI support no
seccomp support no
coroutine backend win32
coroutine pool yes
debug stack usage no
crypto afalg no
GlusterFS support no
gcov gcov
gcov enabled no
TPM support yes
libssh2 support yes
TPM passthrough no
TPM emulator no
QOM debugging yes
Live block migration yes
lzo support no
snappy support no
bzip2 support yes
NUMA host support no
libxml2 no
tcmalloc support no
jemalloc support no
avx2 optimization yes
replication support yes
VxHS block device no
capstone no
libpmem support no
WARNING: Use of GTK 2.0 is deprecated and will be removed in
WARNING: future releases. Please switch to using GTK 3.0
WARNING: Use of SDL 1.2 is deprecated and will be removed in
WARNING: future releases. Please switch to using SDL 2.0
GEN aarch64-softmmu/config-devices.mak.tmp
GEN x86_64-softmmu/config-devices.mak.tmp
GEN config-host.h
GEN qemu-options.def
GEN qapi-gen
GEN trace/generated-tcg-tracers.h
GEN trace/generated-helpers-wrappers.h
GEN trace/generated-helpers.h
GEN trace/generated-helpers.c
GEN x86_64-softmmu/config-devices.mak
GEN aarch64-softmmu/config-devices.mak
GEN module_block.h
GEN ui/input-keymap-atset1-to-qcode.c
GEN ui/input-keymap-linux-to-qcode.c
GEN ui/input-keymap-qcode-to-atset1.c
GEN ui/input-keymap-qcode-to-atset2.c
GEN ui/input-keymap-qcode-to-atset3.c
GEN ui/input-keymap-qcode-to-linux.c
GEN ui/input-keymap-qcode-to-qnum.c
GEN ui/input-keymap-qcode-to-sun.c
GEN ui/input-keymap-usb-to-qcode.c
GEN ui/input-keymap-qnum-to-qcode.c
GEN ui/input-keymap-win32-to-qcode.c
GEN ui/input-keymap-x11-to-qcode.c
GEN ui/input-keymap-xorgevdev-to-qcode.c
GEN ui/input-keymap-xorgkbd-to-qcode.c
GEN ui/input-keymap-xorgxquartz-to-qcode.c
GEN ui/input-keymap-xorgxwin-to-qcode.c
GEN tests/test-qapi-gen
GEN trace-root.h
GEN util/trace.h
GEN crypto/trace.h
GEN io/trace.h
GEN migration/trace.h
GEN block/trace.h
GEN chardev/trace.h
GEN hw/block/trace.h
GEN hw/block/dataplane/trace.h
GEN hw/char/trace.h
GEN hw/intc/trace.h
GEN hw/net/trace.h
GEN hw/rdma/trace.h
GEN hw/rdma/vmw/trace.h
GEN hw/virtio/trace.h
GEN hw/audio/trace.h
GEN hw/misc/trace.h
GEN hw/misc/macio/trace.h
GEN hw/usb/trace.h
GEN hw/scsi/trace.h
GEN hw/nvram/trace.h
GEN hw/display/trace.h
GEN hw/input/trace.h
GEN hw/timer/trace.h
GEN hw/dma/trace.h
GEN hw/sparc/trace.h
GEN hw/sparc64/trace.h
GEN hw/sd/trace.h
GEN hw/isa/trace.h
GEN hw/mem/trace.h
GEN hw/i386/trace.h
GEN hw/i386/xen/trace.h
GEN hw/9pfs/trace.h
GEN hw/ppc/trace.h
GEN hw/pci/trace.h
GEN hw/pci-host/trace.h
GEN hw/s390x/trace.h
GEN hw/vfio/trace.h
GEN hw/acpi/trace.h
GEN hw/arm/trace.h
GEN hw/alpha/trace.h
GEN hw/hppa/trace.h
GEN hw/xen/trace.h
GEN hw/ide/trace.h
GEN hw/tpm/trace.h
GEN ui/trace.h
GEN audio/trace.h
GEN net/trace.h
GEN target/arm/trace.h
GEN target/i386/trace.h
GEN target/mips/trace.h
GEN target/sparc/trace.h
GEN target/s390x/trace.h
GEN target/ppc/trace.h
GEN qom/trace.h
GEN linux-user/trace.h
GEN qapi/trace.h
GEN accel/tcg/trace.h
GEN accel/kvm/trace.h
GEN nbd/trace.h
GEN scsi/trace.h
GEN trace-root.c
GEN util/trace.c
GEN crypto/trace.c
GEN io/trace.c
GEN migration/trace.c
GEN block/trace.c
GEN chardev/trace.c
GEN hw/block/trace.c
GEN hw/block/dataplane/trace.c
GEN hw/char/trace.c
GEN hw/intc/trace.c
GEN hw/net/trace.c
GEN hw/rdma/trace.c
GEN hw/rdma/vmw/trace.c
GEN hw/virtio/trace.c
GEN hw/audio/trace.c
GEN hw/misc/trace.c
GEN hw/misc/macio/trace.c
GEN hw/usb/trace.c
GEN hw/scsi/trace.c
GEN hw/nvram/trace.c
GEN hw/display/trace.c
GEN hw/input/trace.c
GEN hw/timer/trace.c
GEN hw/dma/trace.c
GEN hw/sparc/trace.c
GEN hw/sparc64/trace.c
GEN hw/sd/trace.c
GEN hw/isa/trace.c
GEN hw/mem/trace.c
GEN hw/i386/trace.c
GEN hw/i386/xen/trace.c
GEN hw/9pfs/trace.c
GEN hw/ppc/trace.c
GEN hw/pci/trace.c
GEN hw/pci-host/trace.c
GEN hw/s390x/trace.c
GEN hw/vfio/trace.c
GEN hw/acpi/trace.c
GEN hw/arm/trace.c
GEN hw/alpha/trace.c
GEN hw/hppa/trace.c
GEN hw/xen/trace.c
GEN hw/ide/trace.c
GEN hw/tpm/trace.c
GEN ui/trace.c
GEN audio/trace.c
GEN net/trace.c
GEN target/arm/trace.c
GEN target/i386/trace.c
GEN target/mips/trace.c
GEN target/sparc/trace.c
GEN target/s390x/trace.c
GEN target/ppc/trace.c
GEN qom/trace.c
GEN linux-user/trace.c
GEN qapi/trace.c
GEN accel/tcg/trace.c
GEN accel/kvm/trace.c
GEN nbd/trace.c
GEN scsi/trace.c
GEN config-all-devices.mak
DEP /tmp/qemu-test/src/dtc/tests/dumptrees.c
DEP /tmp/qemu-test/src/dtc/tests/trees.S
DEP /tmp/qemu-test/src/dtc/tests/testutils.c
DEP /tmp/qemu-test/src/dtc/tests/value-labels.c
DEP /tmp/qemu-test/src/dtc/tests/asm_tree_dump.c
DEP /tmp/qemu-test/src/dtc/tests/truncated_property.c
DEP /tmp/qemu-test/src/dtc/tests/check_path.c
DEP /tmp/qemu-test/src/dtc/tests/overlay_bad_fixup.c
DEP /tmp/qemu-test/src/dtc/tests/overlay.c
DEP /tmp/qemu-test/src/dtc/tests/subnode_iterate.c
DEP /tmp/qemu-test/src/dtc/tests/property_iterate.c
DEP /tmp/qemu-test/src/dtc/tests/integer-expressions.c
DEP /tmp/qemu-test/src/dtc/tests/utilfdt_test.c
DEP /tmp/qemu-test/src/dtc/tests/path_offset_aliases.c
DEP /tmp/qemu-test/src/dtc/tests/add_subnode_with_nops.c
DEP /tmp/qemu-test/src/dtc/tests/dtbs_equal_unordered.c
DEP /tmp/qemu-test/src/dtc/tests/dtb_reverse.c
DEP /tmp/qemu-test/src/dtc/tests/dtbs_equal_ordered.c
DEP /tmp/qemu-test/src/dtc/tests/extra-terminating-null.c
DEP /tmp/qemu-test/src/dtc/tests/incbin.c
DEP /tmp/qemu-test/src/dtc/tests/boot-cpuid.c
DEP /tmp/qemu-test/src/dtc/tests/phandle_format.c
DEP /tmp/qemu-test/src/dtc/tests/path-references.c
DEP /tmp/qemu-test/src/dtc/tests/references.c
DEP /tmp/qemu-test/src/dtc/tests/string_escapes.c
DEP /tmp/qemu-test/src/dtc/tests/propname_escapes.c
DEP /tmp/qemu-test/src/dtc/tests/appendprop2.c
DEP /tmp/qemu-test/src/dtc/tests/appendprop1.c
DEP /tmp/qemu-test/src/dtc/tests/del_node.c
DEP /tmp/qemu-test/src/dtc/tests/del_property.c
DEP /tmp/qemu-test/src/dtc/tests/setprop.c
DEP /tmp/qemu-test/src/dtc/tests/set_name.c
DEP /tmp/qemu-test/src/dtc/tests/rw_tree1.c
DEP /tmp/qemu-test/src/dtc/tests/open_pack.c
DEP /tmp/qemu-test/src/dtc/tests/mangle-layout.c
DEP /tmp/qemu-test/src/dtc/tests/nopulate.c
DEP /tmp/qemu-test/src/dtc/tests/move_and_save.c
DEP /tmp/qemu-test/src/dtc/tests/sw_tree1.c
DEP /tmp/qemu-test/src/dtc/tests/nop_node.c
DEP /tmp/qemu-test/src/dtc/tests/nop_property.c
DEP /tmp/qemu-test/src/dtc/tests/setprop_inplace.c
DEP /tmp/qemu-test/src/dtc/tests/stringlist.c
DEP /tmp/qemu-test/src/dtc/tests/addr_size_cells.c
DEP /tmp/qemu-test/src/dtc/tests/notfound.c
DEP /tmp/qemu-test/src/dtc/tests/sized_cells.c
DEP /tmp/qemu-test/src/dtc/tests/char_literal.c
DEP /tmp/qemu-test/src/dtc/tests/get_alias.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_compatible.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_phandle.c
DEP /tmp/qemu-test/src/dtc/tests/node_check_compatible.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_prop_value.c
DEP /tmp/qemu-test/src/dtc/tests/parent_offset.c
DEP /tmp/qemu-test/src/dtc/tests/supernode_atdepth_offset.c
DEP /tmp/qemu-test/src/dtc/tests/get_path.c
DEP /tmp/qemu-test/src/dtc/tests/get_phandle.c
DEP /tmp/qemu-test/src/dtc/tests/getprop.c
DEP /tmp/qemu-test/src/dtc/tests/get_name.c
DEP /tmp/qemu-test/src/dtc/tests/path_offset.c
DEP /tmp/qemu-test/src/dtc/tests/subnode_offset.c
DEP /tmp/qemu-test/src/dtc/tests/find_property.c
DEP /tmp/qemu-test/src/dtc/tests/root_node.c
DEP /tmp/qemu-test/src/dtc/tests/get_mem_rsv.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_overlay.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_addresses.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_empty_tree.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_strerror.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_rw.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_sw.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_wip.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_ro.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt.c
DEP /tmp/qemu-test/src/dtc/util.c
DEP /tmp/qemu-test/src/dtc/fdtoverlay.c
DEP /tmp/qemu-test/src/dtc/fdtput.c
DEP /tmp/qemu-test/src/dtc/fdtget.c
DEP /tmp/qemu-test/src/dtc/fdtdump.c
LEX convert-dtsv0-lexer.lex.c
DEP /tmp/qemu-test/src/dtc/srcpos.c
BISON dtc-parser.tab.c
LEX dtc-lexer.lex.c
DEP /tmp/qemu-test/src/dtc/treesource.c
DEP /tmp/qemu-test/src/dtc/livetree.c
DEP /tmp/qemu-test/src/dtc/fstree.c
DEP /tmp/qemu-test/src/dtc/flattree.c
DEP /tmp/qemu-test/src/dtc/dtc.c
DEP /tmp/qemu-test/src/dtc/data.c
DEP /tmp/qemu-test/src/dtc/checks.c
DEP convert-dtsv0-lexer.lex.c
DEP dtc-lexer.lex.c
DEP dtc-parser.tab.c
CHK version_gen.h
UPD version_gen.h
DEP /tmp/qemu-test/src/dtc/util.c
CC libfdt/fdt.o
CC libfdt/fdt_ro.o
CC libfdt/fdt_wip.o
CC libfdt/fdt_rw.o
CC libfdt/fdt_sw.o
CC libfdt/fdt_empty_tree.o
CC libfdt/fdt_strerror.o
CC libfdt/fdt_addresses.o
CC libfdt/fdt_overlay.o
AR libfdt/libfdt.a
x86_64-w64-mingw32-ar: creating libfdt/libfdt.a
a - libfdt/fdt.o
a - libfdt/fdt_ro.o
a - libfdt/fdt_wip.o
a - libfdt/fdt_sw.o
a - libfdt/fdt_rw.o
a - libfdt/fdt_strerror.o
a - libfdt/fdt_empty_tree.o
a - libfdt/fdt_addresses.o
a - libfdt/fdt_overlay.o
RC version.o
GEN qga/qapi-generated/qapi-gen
CC qapi/qapi-builtin-types.o
CC qapi/qapi-types-block-core.o
CC qapi/qapi-types-char.o
CC qapi/qapi-types-block.o
CC qapi/qapi-types.o
CC qapi/qapi-types-common.o
CC qapi/qapi-types-crypto.o
CC qapi/qapi-types-introspect.o
CC qapi/qapi-types-job.o
CC qapi/qapi-types-migration.o
CC qapi/qapi-types-misc.o
CC qapi/qapi-types-net.o
CC qapi/qapi-types-rocker.o
CC qapi/qapi-types-run-state.o
CC qapi/qapi-types-sockets.o
CC qapi/qapi-types-tpm.o
CC qapi/qapi-types-trace.o
CC qapi/qapi-types-transaction.o
CC qapi/qapi-types-ui.o
CC qapi/qapi-builtin-visit.o
CC qapi/qapi-visit.o
CC qapi/qapi-visit-block-core.o
CC qapi/qapi-visit-block.o
CC qapi/qapi-visit-char.o
CC qapi/qapi-visit-common.o
CC qapi/qapi-visit-crypto.o
CC qapi/qapi-visit-introspect.o
CC qapi/qapi-visit-job.o
CC qapi/qapi-visit-migration.o
CC qapi/qapi-visit-misc.o
CC qapi/qapi-visit-net.o
CC qapi/qapi-visit-rocker.o
CC qapi/qapi-visit-run-state.o
CC qapi/qapi-visit-sockets.o
CC qapi/qapi-visit-tpm.o
CC qapi/qapi-visit-trace.o
CC qapi/qapi-visit-transaction.o
CC qapi/qapi-visit-ui.o
CC qapi/qapi-events.o
CC qapi/qapi-events-block-core.o
CC qapi/qapi-events-block.o
CC qapi/qapi-events-char.o
CC qapi/qapi-events-common.o
CC qapi/qapi-events-crypto.o
CC qapi/qapi-events-introspect.o
CC qapi/qapi-events-job.o
CC qapi/qapi-events-migration.o
CC qapi/qapi-events-misc.o
CC qapi/qapi-events-net.o
CC qapi/qapi-events-rocker.o
CC qapi/qapi-events-run-state.o
CC qapi/qapi-events-sockets.o
CC qapi/qapi-events-tpm.o
CC qapi/qapi-events-trace.o
CC qapi/qapi-events-transaction.o
CC qapi/qapi-events-ui.o
CC qapi/qapi-introspect.o
CC qapi/qapi-visit-core.o
CC qapi/qapi-dealloc-visitor.o
CC qapi/qobject-input-visitor.o
CC qapi/qobject-output-visitor.o
CC qapi/qmp-registry.o
CC qapi/qmp-dispatch.o
CC qapi/string-input-visitor.o
CC qapi/string-output-visitor.o
CC qapi/opts-visitor.o
CC qapi/qapi-clone-visitor.o
CC qapi/qmp-event.o
CC qobject/qnull.o
CC qapi/qapi-util.o
CC qobject/qnum.o
CC qobject/qstring.o
CC qobject/qdict.o
CC qobject/qlist.o
CC qobject/qbool.o
CC qobject/qlit.o
CC qobject/qjson.o
CC qobject/qobject.o
CC qobject/json-lexer.o
CC qobject/json-streamer.o
CC qobject/json-parser.o
CC trace/simple.o
CC trace/control.o
CC trace/qmp.o
CC util/osdep.o
CC util/cutils.o
CC util/unicode.o
CC util/qemu-timer-common.o
CC util/bufferiszero.o
CC util/lockcnt.o
CC util/aiocb.o
CC util/async.o
CC util/aio-wait.o
CC util/thread-pool.o
CC util/qemu-timer.o
CC util/main-loop.o
CC util/iohandler.o
CC util/aio-win32.o
CC util/event_notifier-win32.o
CC util/oslib-win32.o
CC util/qemu-thread-win32.o
CC util/envlist.o
CC util/path.o
CC util/module.o
CC util/host-utils.o
CC util/bitmap.o
CC util/bitops.o
CC util/hbitmap.o
CC util/fifo8.o
CC util/acl.o
CC util/cacheinfo.o
CC util/error.o
CC util/qemu-error.o
CC util/id.o
CC util/iov.o
CC util/qemu-config.o
CC util/qemu-sockets.o
CC util/uri.o
CC util/notify.o
CC util/qemu-option.o
CC util/qemu-progress.o
CC util/keyval.o
CC util/hexdump.o
CC util/crc32c.o
CC util/uuid.o
CC util/throttle.o
CC util/getauxval.o
CC util/readline.o
CC util/rcu.o
CC util/qemu-coroutine.o
CC util/qemu-coroutine-lock.o
CC util/qemu-coroutine-io.o
CC util/qemu-coroutine-sleep.o
CC util/coroutine-win32.o
CC util/buffer.o
CC util/timed-average.o
CC util/base64.o
CC util/log.o
CC util/pagesize.o
CC util/qdist.o
CC util/qht.o
CC util/range.o
CC util/stats64.o
CC util/systemd.o
CC util/iova-tree.o
CC trace-root.o
CC util/trace.o
CC crypto/trace.o
CC io/trace.o
CC migration/trace.o
CC block/trace.o
CC chardev/trace.o
CC hw/block/trace.o
CC hw/block/dataplane/trace.o
CC hw/char/trace.o
CC hw/intc/trace.o
CC hw/net/trace.o
CC hw/rdma/trace.o
CC hw/rdma/vmw/trace.o
CC hw/virtio/trace.o
CC hw/audio/trace.o
CC hw/misc/trace.o
CC hw/misc/macio/trace.o
CC hw/usb/trace.o
CC hw/scsi/trace.o
CC hw/nvram/trace.o
CC hw/display/trace.o
CC hw/timer/trace.o
CC hw/input/trace.o
CC hw/dma/trace.o
CC hw/sparc/trace.o
CC hw/sparc64/trace.o
CC hw/sd/trace.o
CC hw/isa/trace.o
CC hw/mem/trace.o
CC hw/i386/trace.o
CC hw/i386/xen/trace.o
CC hw/9pfs/trace.o
CC hw/ppc/trace.o
CC hw/pci/trace.o
CC hw/pci-host/trace.o
CC hw/s390x/trace.o
CC hw/vfio/trace.o
CC hw/acpi/trace.o
CC hw/arm/trace.o
CC hw/alpha/trace.o
CC hw/hppa/trace.o
CC hw/xen/trace.o
CC hw/ide/trace.o
CC hw/tpm/trace.o
CC ui/trace.o
CC audio/trace.o
CC net/trace.o
CC target/arm/trace.o
CC target/i386/trace.o
CC target/mips/trace.o
CC target/sparc/trace.o
CC target/s390x/trace.o
CC target/ppc/trace.o
CC qom/trace.o
CC linux-user/trace.o
CC qapi/trace.o
CC accel/tcg/trace.o
CC accel/kvm/trace.o
CC nbd/trace.o
CC scsi/trace.o
CC crypto/pbkdf-stub.o
CC stubs/arch-query-cpu-def.o
CC stubs/arch-query-cpu-model-expansion.o
CC stubs/arch-query-cpu-model-baseline.o
CC stubs/bdrv-next-monitor-owned.o
CC stubs/arch-query-cpu-model-comparison.o
CC stubs/blk-commit-all.o
CC stubs/blockdev-close-all-bdrv-states.o
CC stubs/clock-warp.o
CC stubs/cpu-get-clock.o
CC stubs/cpu-get-icount.o
CC stubs/dump.o
CC stubs/error-printf.o
CC stubs/fdset.o
CC stubs/gdbstub.o
CC stubs/iothread.o
CC stubs/get-vm-name.o
CC stubs/iothread-lock.o
CC stubs/is-daemonized.o
CC stubs/machine-init-done.o
CC stubs/migr-blocker.o
CC stubs/monitor.o
CC stubs/change-state-handler.o
CC stubs/notify-event.o
CC stubs/qtest.o
CC stubs/replay.o
CC stubs/runstate-check.o
CC stubs/set-fd-handler.o
CC stubs/slirp.o
CC stubs/sysbus.o
CC stubs/tpm.o
CC stubs/trace-control.o
CC stubs/uuid.o
CC stubs/vm-stop.o
CC stubs/vmstate.o
CC stubs/fd-register.o
CC stubs/qmp_memory_device.o
CC stubs/target-monitor-defs.o
CC stubs/target-get-monitor-def.o
CC stubs/vmgenid.o
CC stubs/pc_madt_cpu_entry.o
CC stubs/xen-common.o
CC stubs/xen-hvm.o
CC stubs/ram-block.o
CC stubs/pci-host-piix.o
CC stubs/pmem.o
GEN qemu-img-cmds.h
CC block.o
CC blockjob.o
CC job.o
CC qemu-io-cmds.o
/tmp/qemu-test/src/stubs/pmem.c: In function 'pmem_persist':
/tmp/qemu-test/src/stubs/pmem.c:23:1: error: control reaches end of non-void function [-Werror=return-type]
}
^
cc1: all warnings being treated as errors
make: *** [/tmp/qemu-test/src/rules.mak:66: stubs/pmem.o] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
File "./tests/docker/docker.py", line 407, in <module>
sys.exit(main())
File "./tests/docker/docker.py", line 404, in main
return args.cmdobj.run(args, argv)
File "./tests/docker/docker.py", line 261, in run
return Docker().run(argv, args.keep, quiet=args.quiet)
File "./tests/docker/docker.py", line 229, in run
quiet=quiet)
File "./tests/docker/docker.py", line 147, in _do_check
return subprocess.check_call(self._command + cmd, **kwargs)
File "/usr/lib64/python2.7/subprocess.py", line 186, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['docker', 'run', '--label', 'com.qemu.instance.uuid=5acd7a34657511e8b3bc52540069c830', '-u', '0', '--security-opt', 'seccomp=unconfined', '--rm', '--net=none', '-e', 'TARGET_LIST=', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=8', '-e', 'DEBUG=', '-e', 'SHOW_ENV=1', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/root/.cache/qemu-docker-ccache:/var/tmp/ccache:z', '-v', '/var/tmp/patchew-tester-tmp-4kz3s9ce/src/docker-src.2018-06-01-04.25.22.560:/var/tmp/qemu:z,ro', 'qemu:fedora', '/var/tmp/qemu/run', 'test-mingw']' returned non-zero exit status 2
make[1]: *** [tests/docker/Makefile.include:129: docker-run] Error 1
make[1]: Leaving directory '/var/tmp/patchew-tester-tmp-4kz3s9ce/src'
make: *** [tests/docker/Makefile.include:163: docker-run-test-mingw@fedora] Error 2
real 1m51.328s
user 0m4.504s
sys 0m3.916s
=== OUTPUT END ===
Test command exited with code: 2
---
Email generated automatically by Patchew [http://patchew.org/].
Please send your feedback to patchew-devel@redhat.com
^ permalink raw reply [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-01 8:27 ` [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory no-reply
@ 2018-06-07 13:50 ` Stefan Hajnoczi
0 siblings, 0 replies; 28+ messages in thread
From: Stefan Hajnoczi @ 2018-06-07 13:50 UTC (permalink / raw)
To: qemu-devel
Cc: junyan.he, famz, haozhong.zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, junyan.he,
pbonzini, imammedo, rth
[-- Attachment #1: Type: text/plain, Size: 368 bytes --]
On Fri, Jun 01, 2018 at 01:27:14AM -0700, no-reply@patchew.org wrote:
> /tmp/qemu-test/src/stubs/pmem.c: In function 'pmem_persist':
> /tmp/qemu-test/src/stubs/pmem.c:23:1: error: control reaches end of non-void function [-Werror=return-type]
> }
> ^
> cc1: all warnings being treated as errors
Looks like another revision of this series will be necessary.
Stefan
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 455 bytes --]
^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
` (7 preceding siblings ...)
2018-06-01 8:27 ` [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory no-reply
@ 2018-06-01 8:33 ` no-reply
2018-06-12 12:06 ` Igor Mammedov
9 siblings, 0 replies; 28+ messages in thread
From: no-reply @ 2018-06-01 8:33 UTC (permalink / raw)
To: junyan.he
Cc: famz, qemu-devel, haozhong.zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, junyan.he,
stefanha, pbonzini, imammedo, rth
Hi,
This series failed build test on s390x host. Please find the details below.
Type: series
Message-id: 1527840629-18648-1-git-send-email-junyan.he@gmx.com
Subject: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
=== TEST SCRIPT BEGIN ===
#!/bin/bash
# Testing script will be invoked under the git checkout with
# HEAD pointing to a commit that has the patches applied on top of "base"
# branch
set -e
echo "=== ENV ==="
env
echo "=== PACKAGES ==="
rpm -qa
echo "=== TEST BEGIN ==="
CC=$HOME/bin/cc
INSTALL=$PWD/install
BUILD=$PWD/build
echo -n "Using CC: "
realpath $CC
mkdir -p $BUILD $INSTALL
SRC=$PWD
cd $BUILD
$SRC/configure --cc=$CC --prefix=$INSTALL
make -j4
# XXX: we need reliable clean up
# make check -j4 V=1
make install
=== TEST SCRIPT END ===
Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
* [new tag] patchew/1527840629-18648-1-git-send-email-junyan.he@gmx.com -> patchew/1527840629-18648-1-git-send-email-junyan.he@gmx.com
t [tag update] patchew/20180601073050.8054-1-richard.henderson@linaro.org -> patchew/20180601073050.8054-1-richard.henderson@linaro.org
t [tag update] patchew/cover.1527814874.git.keno@juliacomputing.com -> patchew/cover.1527814874.git.keno@juliacomputing.com
Switched to a new branch 'test'
4ddbee3d9b migration/ram: ensure write persistence on loading all data to PMEM.
1e8b882644 migration/ram: Add check and info message to nvdimm post copy.
fbc70b5463 mem/nvdimm: ensure write persistence to PMEM in label emulation
10e5fa15d3 configure: add libpmem support
8f7f12852b hostmem-file: add the 'pmem' option
ab99d47fbf memory, exec: switch file ram allocation functions to 'flags' parameters
08c1d813ef memory, exec: Expose all memory block related flags.
=== OUTPUT BEGIN ===
=== ENV ===
LANG=en_US.UTF-8
XDG_SESSION_ID=212219
USER=fam
PWD=/var/tmp/patchew-tester-tmp-i4e0fs2l/src
HOME=/home/fam
SHELL=/bin/sh
SHLVL=2
PATCHEW=/home/fam/patchew/patchew-cli -s http://patchew.org --nodebug
LOGNAME=fam
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1012/bus
XDG_RUNTIME_DIR=/run/user/1012
PATH=/usr/bin:/bin
_=/usr/bin/env
=== PACKAGES ===
gpg-pubkey-873529b8-54e386ff
glibc-debuginfo-common-2.24-10.fc25.s390x
fedora-release-26-1.noarch
dejavu-sans-mono-fonts-2.35-4.fc26.noarch
xemacs-filesystem-21.5.34-22.20170124hgf412e9f093d4.fc26.noarch
bash-4.4.12-7.fc26.s390x
libSM-1.2.2-5.fc26.s390x
libmpc-1.0.2-6.fc26.s390x
libaio-0.3.110-7.fc26.s390x
libverto-0.2.6-7.fc26.s390x
perl-Scalar-List-Utils-1.48-1.fc26.s390x
iptables-libs-1.6.1-2.fc26.s390x
tcl-8.6.6-2.fc26.s390x
libxshmfence-1.2-4.fc26.s390x
expect-5.45-23.fc26.s390x
perl-Thread-Queue-3.12-1.fc26.noarch
perl-encoding-2.19-6.fc26.s390x
keyutils-1.5.10-1.fc26.s390x
gmp-devel-6.1.2-4.fc26.s390x
enchant-1.6.0-16.fc26.s390x
python-gobject-base-3.24.1-1.fc26.s390x
python3-enchant-1.6.10-1.fc26.noarch
python-lockfile-0.11.0-6.fc26.noarch
python2-pyparsing-2.1.10-3.fc26.noarch
python2-lxml-4.1.1-1.fc26.s390x
librados2-10.2.7-2.fc26.s390x
trousers-lib-0.3.13-7.fc26.s390x
libdatrie-0.2.9-4.fc26.s390x
libsoup-2.58.2-1.fc26.s390x
passwd-0.79-9.fc26.s390x
bind99-libs-9.9.10-3.P3.fc26.s390x
python3-rpm-4.13.0.2-1.fc26.s390x
systemd-233-7.fc26.s390x
virglrenderer-0.6.0-1.20170210git76b3da97b.fc26.s390x
s390utils-ziomon-1.36.1-3.fc26.s390x
s390utils-osasnmpd-1.36.1-3.fc26.s390x
libXrandr-1.5.1-2.fc26.s390x
libglvnd-glx-1.0.0-1.fc26.s390x
texlive-ifxetex-svn19685.0.5-33.fc26.2.noarch
texlive-psnfss-svn33946.9.2a-33.fc26.2.noarch
texlive-dvipdfmx-def-svn40328-33.fc26.2.noarch
texlive-natbib-svn20668.8.31b-33.fc26.2.noarch
texlive-xdvi-bin-svn40750-33.20160520.fc26.2.s390x
texlive-cm-svn32865.0-33.fc26.2.noarch
texlive-beton-svn15878.0-33.fc26.2.noarch
texlive-fpl-svn15878.1.002-33.fc26.2.noarch
texlive-mflogo-svn38628-33.fc26.2.noarch
texlive-texlive-docindex-svn41430-33.fc26.2.noarch
texlive-luaotfload-bin-svn34647.0-33.20160520.fc26.2.noarch
texlive-koma-script-svn41508-33.fc26.2.noarch
texlive-pst-tree-svn24142.1.12-33.fc26.2.noarch
texlive-breqn-svn38099.0.98d-33.fc26.2.noarch
texlive-xetex-svn41438-33.fc26.2.noarch
gstreamer1-plugins-bad-free-1.12.3-1.fc26.s390x
xorg-x11-font-utils-7.5-33.fc26.s390x
ghostscript-fonts-5.50-36.fc26.noarch
libXext-devel-1.3.3-5.fc26.s390x
libusbx-devel-1.0.21-2.fc26.s390x
libglvnd-devel-1.0.0-1.fc26.s390x
emacs-25.3-3.fc26.s390x
alsa-lib-devel-1.1.4.1-1.fc26.s390x
kbd-2.0.4-2.fc26.s390x
dconf-0.26.0-2.fc26.s390x
mc-4.8.19-5.fc26.s390x
doxygen-1.8.13-9.fc26.s390x
dpkg-1.18.24-1.fc26.s390x
libtdb-1.3.13-1.fc26.s390x
python2-pynacl-1.1.1-1.fc26.s390x
perl-Filter-1.58-1.fc26.s390x
python2-pip-9.0.1-11.fc26.noarch
dnf-2.7.5-2.fc26.noarch
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libradosstriper1-10.2.7-2.fc26.s390x
snappy-1.1.4-3.fc26.s390x
libmpcdec-1.2.6-17.fc26.s390x
rpm-libs-4.13.0.2-1.fc26.s390x
python-urlgrabber-3.10.1-11.fc26.noarch
sysfsutils-2.1.0-20.fc26.s390x
python3-hawkey-0.11.1-1.fc26.s390x
iputils-20161105-5.fc26.s390x
plymouth-scripts-0.9.3-0.7.20160620git0e65b86c.fc26.s390x
cronie-1.5.1-5.fc26.s390x
libini_config-1.3.1-34.fc26.s390x
libX11-1.6.5-2.fc26.s390x
libglvnd-egl-1.0.0-1.fc26.s390x
texlive-kpathsea-svn41139-33.fc26.2.noarch
texlive-thumbpdf-bin-svn6898.0-33.20160520.fc26.2.noarch
texlive-subfig-svn15878.1.3-33.fc26.2.noarch
texlive-gsftopk-bin-svn40473-33.20160520.fc26.2.s390x
texlive-tex-ini-files-svn40533-33.fc26.2.noarch
texlive-qstest-svn15878.0-33.fc26.2.noarch
texlive-palatino-svn31835.0-33.fc26.2.noarch
texlive-ec-svn25033.1.0-33.fc26.2.noarch
texlive-iftex-svn29654.0.2-33.fc26.2.noarch
texlive-pslatex-svn16416.0-33.fc26.2.noarch
texlive-algorithms-svn38085.0.1-33.fc26.2.noarch
texlive-filehook-svn24280.0.5d-33.fc26.2.noarch
texlive-pst-node-svn40743-33.fc26.2.noarch
texlive-rotating-svn16832.2.16b-33.fc26.2.noarch
texlive-seminar-svn34011.1.62-33.fc26.2.noarch
libuuid-devel-2.30.2-1.fc26.s390x
libXinerama-devel-1.1.3-7.fc26.s390x
emacs-common-25.3-3.fc26.s390x
fedora-packager-0.6.0.1-2.fc26.noarch
snappy-devel-1.1.4-3.fc26.s390x
authconfig-7.0.1-2.fc26.s390x
newt-python3-0.52.20-1.fc26.s390x
python-decoratortools-1.8-13.fc26.noarch
python-systemd-doc-234-1.fc26.s390x
openssl-libs-1.1.0g-1.fc26.s390x
lsof-4.89-5.fc26.s390x
glibc-all-langpacks-2.25-13.fc26.s390x
audit-libs-2.8.2-1.fc26.s390x
gcc-7.3.1-2.fc26.s390x
pcre2-utf16-10.23-13.fc26.s390x
kernel-core-4.15.4-200.fc26.s390x
dracut-config-rescue-046-8.git20180105.fc26.s390x
webkitgtk4-plugin-process-gtk2-2.18.6-1.fc26.s390x
perl-Time-HiRes-1.9753-1.fc26.s390x
haveged-1.9.1-6.fc26.s390x
p11-kit-0.23.10-1.fc26.s390x
boost-system-1.63.0-11.fc26.s390x
glusterfs-fuse-3.10.11-1.fc26.s390x
vim-common-8.0.1553-1.fc26.s390x
systemtap-devel-3.2-7.fc26.s390x
perl-SelfLoader-1.23-396.fc26.noarch
nss-tools-3.36.0-1.0.fc26.s390x
libwebp-0.6.1-8.fc26.s390x
python3-configargparse-0.12.0-1.fc26.noarch
gpg-pubkey-a0a7badb-52844296
gpg-pubkey-e372e838-56fd7943
gpg-pubkey-3b921d09-57a87096
google-roboto-slab-fonts-1.100263-0.5.20150923git.fc26.noarch
libreport-filesystem-2.9.1-3.fc26.s390x
libcom_err-1.43.4-2.fc26.s390x
libffi-3.1-12.fc26.s390x
keyutils-libs-1.5.10-1.fc26.s390x
diffutils-3.5-3.fc26.s390x
apr-util-1.5.4-6.fc26.s390x
bluez-libs-5.46-6.fc26.s390x
libksba-1.3.5-3.fc26.s390x
ncurses-6.0-8.20170212.fc26.s390x
libteam-1.27-1.fc26.s390x
perl-Fedora-VSP-0.001-5.fc26.noarch
libusb-0.1.5-8.fc26.s390x
acl-2.2.52-15.fc26.s390x
dwz-0.12-3.fc26.s390x
libblkid-2.30.2-1.fc26.s390x
polkit-libs-0.113-8.fc26.s390x
dbus-python-1.2.4-6.fc26.s390x
gts-0.7.6-30.20121130.fc26.s390x
libfdisk-2.30.2-1.fc26.s390x
python3-pycparser-2.14-10.fc26.noarch
python3-bugzilla-2.1.0-1.fc26.noarch
python2-docutils-0.13.1-4.fc26.noarch
python2-requests-2.13.0-1.fc26.noarch
libcephfs-devel-10.2.7-2.fc26.s390x
ncurses-c++-libs-6.0-8.20170212.fc26.s390x
GeoIP-1.6.11-1.fc26.s390x
liblockfile-1.09-5.fc26.s390x
rpm-plugin-selinux-4.13.0.2-1.fc26.s390x
libsysfs-2.1.0-20.fc26.s390x
libdnf-0.11.1-1.fc26.s390x
mesa-libgbm-17.2.4-2.fc26.s390x
lvm2-libs-2.02.168-6.fc26.s390x
libXfixes-5.0.3-2.fc26.s390x
brlapi-0.6.6-5.fc26.s390x
texlive-metafont-svn40793-33.fc26.2.noarch
texlive-graphics-cfg-svn40269-33.fc26.2.noarch
texlive-mptopdf-svn41282-33.fc26.2.noarch
texlive-makeindex-bin-svn40473-33.20160520.fc26.2.s390x
texlive-texlive-scripts-bin-svn29741.0-33.20160520.fc26.2.noarch
texlive-sauerj-svn15878.0-33.fc26.2.noarch
texlive-txfonts-svn15878.0-33.fc26.2.noarch
texlive-filecontents-svn24250.1.3-33.fc26.2.noarch
texlive-lualibs-svn40370-33.fc26.2.noarch
texlive-section-svn20180.0-33.fc26.2.noarch
texlive-ucharcat-svn38907-33.fc26.2.noarch
texlive-hyperref-svn41396-33.fc26.2.noarch
texlive-pst-3d-svn17257.1.10-33.fc26.2.noarch
texlive-oberdiek-svn41346-33.fc26.2.noarch
texlive-ae-svn15878.1.4-33.fc26.2.noarch
texlive-collection-basic-svn41149-33.20160520.fc26.2.noarch
gnat-srpm-macros-4-2.fc26.noarch
glib2-devel-2.52.3-2.fc26.s390x
netpbm-progs-10.80.00-2.fc26.s390x
libXxf86vm-devel-1.1.4-4.fc26.s390x
nettle-devel-3.3-2.fc26.s390x
cairo-gobject-devel-1.14.10-1.fc26.s390x
fedora-rpm-macros-26-2.fc26.noarch
libidn-devel-1.33-2.fc26.s390x
s390utils-1.36.1-3.fc26.s390x
libtool-2.4.6-17.fc26.s390x
python3-cssselect-0.9.2-4.fc26.noarch
python2-cssselect-0.9.2-4.fc26.noarch
bison-3.0.4-6.fc26.s390x
rootfiles-8.1-20.fc26.noarch
python3-urllib3-1.20-2.fc26.noarch
libgcc-7.3.1-2.fc26.s390x
python3-distro-1.2.0-1.fc26.noarch
libnfsidmap-2.2.1-4.rc2.fc26.s390x
kernel-4.15.4-200.fc26.s390x
glibc-static-2.25-13.fc26.s390x
xapian-core-libs-1.4.5-1.fc26.s390x
elfutils-libelf-0.170-4.fc26.s390x
nss-3.36.0-1.0.fc26.s390x
nss-softokn-freebl-devel-3.36.0-1.0.fc26.s390x
koji-1.15.0-4.fc26.noarch
perl-Git-2.13.6-3.fc26.noarch
elfutils-default-yama-scope-0.170-4.fc26.noarch
selinux-policy-targeted-3.13.1-260.20.fc26.noarch
curl-7.53.1-16.fc26.s390x
publicsuffix-list-dafsa-20180223-1.fc26.noarch
python3-funcsigs-1.0.2-5.fc26.noarch
=== TEST BEGIN ===
Using CC: /home/fam/bin/cc
Install prefix /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install
BIOS directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/share/qemu
firmware path /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/share/qemu-firmware
binary directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/bin
library directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/lib
module directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/lib/qemu
libexec directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/libexec
include directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/include
config directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/etc
local state directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/var
Manual directory /var/tmp/patchew-tester-tmp-i4e0fs2l/src/install/share/man
ELF interp prefix /usr/gnemul/qemu-%M
Source path /var/tmp/patchew-tester-tmp-i4e0fs2l/src
GIT binary git
GIT submodules ui/keycodemapdb capstone
C compiler /home/fam/bin/cc
Host C compiler cc
C++ compiler c++
Objective-C compiler /home/fam/bin/cc
ARFLAGS rv
CFLAGS -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g
QEMU_CFLAGS -I/usr/include/pixman-1 -Werror -DHAS_LIBSSH2_SFTP_FSYNC -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -I/usr/include/p11-kit-1 -I/usr/include/libpng16 -I/usr/include/libdrm -I$(SRC_PATH)/capstone/include
LDFLAGS -Wl,--warn-common -m64 -g
QEMU_LDFLAGS
make make
install install
python python -B
smbd /usr/sbin/smbd
module support no
host CPU s390x
host big endian yes
target list aarch64-softmmu alpha-softmmu arm-softmmu cris-softmmu hppa-softmmu i386-softmmu lm32-softmmu m68k-softmmu microblazeel-softmmu microblaze-softmmu mips64el-softmmu mips64-softmmu mipsel-softmmu mips-softmmu moxie-softmmu nios2-softmmu or1k-softmmu ppc64-softmmu ppcemb-softmmu ppc-softmmu riscv32-softmmu riscv64-softmmu s390x-softmmu sh4eb-softmmu sh4-softmmu sparc64-softmmu sparc-softmmu tricore-softmmu unicore32-softmmu x86_64-softmmu xtensaeb-softmmu xtensa-softmmu aarch64_be-linux-user aarch64-linux-user alpha-linux-user armeb-linux-user arm-linux-user cris-linux-user hppa-linux-user i386-linux-user m68k-linux-user microblazeel-linux-user microblaze-linux-user mips64el-linux-user mips64-linux-user mipsel-linux-user mips-linux-user mipsn32el-linux-user mipsn32-linux-user nios2-linux-user or1k-linux-user ppc64abi32-linux-user ppc64le-linux-user ppc64-linux-user ppc-linux-user riscv32-linux-user riscv64-linux-user s390x-linux-user sh4eb-linux-user sh4-linux-user sparc32plus-linux-user sparc64-linux-user sparc-linux-user tilegx-linux-user x86_64-linux-user xtensaeb-linux-user xtensa-linux-user
gprof enabled no
sparse enabled no
strip binaries yes
profiler no
static build no
SDL support yes (2.0.7)
GTK support yes (3.22.21)
GTK GL support yes
VTE support yes (0.48.4)
TLS priority NORMAL
GNUTLS support yes
GNUTLS rnd yes
libgcrypt no
libgcrypt kdf no
nettle yes (3.3)
nettle kdf yes
libtasn1 yes
curses support yes
virgl support yes
curl support yes
mingw32 support no
Audio drivers oss
Block whitelist (rw)
Block whitelist (ro)
VirtFS support yes
Multipath support no
VNC support yes
VNC SASL support yes
VNC JPEG support yes
VNC PNG support yes
xen support no
brlapi support yes
bluez support yes
Documentation yes
PIE no
vde support no
netmap support no
Linux AIO support yes
ATTR/XATTR support yes
Install blobs yes
KVM support yes
HAX support no
HVF support no
WHPX support no
TCG support yes
TCG debug enabled no
TCG interpreter no
malloc trim support yes
RDMA support no
fdt support system
membarrier no
preadv support yes
fdatasync yes
madvise yes
posix_madvise yes
posix_memalign yes
libcap-ng support yes
vhost-net support yes
vhost-crypto support yes
vhost-scsi support yes
vhost-vsock support yes
vhost-user support yes
Trace backends log
spice support no
rbd support yes
xfsctl support no
smartcard support yes
libusb yes
usb net redir yes
OpenGL support yes
OpenGL dmabufs yes
libiscsi support yes
libnfs support yes
build guest agent yes
QGA VSS support no
QGA w32 disk info no
QGA MSI support no
seccomp support yes
coroutine backend ucontext
coroutine pool yes
debug stack usage no
crypto afalg no
GlusterFS support yes
gcov gcov
gcov enabled no
TPM support yes
libssh2 support yes
TPM passthrough no
TPM emulator yes
QOM debugging yes
Live block migration yes
lzo support yes
snappy support yes
bzip2 support yes
NUMA host support no
libxml2 yes
tcmalloc support no
jemalloc support no
avx2 optimization no
replication support yes
VxHS block device no
capstone git
libpmem support no
GEN aarch64-softmmu/config-devices.mak.tmp
GEN alpha-softmmu/config-devices.mak.tmp
GEN arm-softmmu/config-devices.mak.tmp
GEN cris-softmmu/config-devices.mak.tmp
GEN cris-softmmu/config-devices.mak
GEN alpha-softmmu/config-devices.mak
GEN hppa-softmmu/config-devices.mak.tmp
GEN aarch64-softmmu/config-devices.mak
GEN i386-softmmu/config-devices.mak.tmp
GEN arm-softmmu/config-devices.mak
GEN lm32-softmmu/config-devices.mak.tmp
GEN m68k-softmmu/config-devices.mak.tmp
GEN hppa-softmmu/config-devices.mak
GEN microblazeel-softmmu/config-devices.mak.tmp
GEN m68k-softmmu/config-devices.mak
GEN microblaze-softmmu/config-devices.mak.tmp
GEN i386-softmmu/config-devices.mak
GEN lm32-softmmu/config-devices.mak
GEN mips64el-softmmu/config-devices.mak.tmp
GEN mips64-softmmu/config-devices.mak.tmp
GEN microblaze-softmmu/config-devices.mak
GEN microblazeel-softmmu/config-devices.mak
GEN mipsel-softmmu/config-devices.mak.tmp
GEN mips-softmmu/config-devices.mak.tmp
GEN mips64el-softmmu/config-devices.mak
GEN mips64-softmmu/config-devices.mak
GEN mipsel-softmmu/config-devices.mak
GEN moxie-softmmu/config-devices.mak.tmp
GEN mips-softmmu/config-devices.mak
GEN nios2-softmmu/config-devices.mak.tmp
GEN or1k-softmmu/config-devices.mak.tmp
GEN ppc64-softmmu/config-devices.mak.tmp
GEN or1k-softmmu/config-devices.mak
GEN moxie-softmmu/config-devices.mak
GEN nios2-softmmu/config-devices.mak
GEN ppcemb-softmmu/config-devices.mak.tmp
GEN ppc-softmmu/config-devices.mak.tmp
GEN riscv32-softmmu/config-devices.mak.tmp
GEN ppc64-softmmu/config-devices.mak
GEN riscv64-softmmu/config-devices.mak.tmp
GEN riscv32-softmmu/config-devices.mak
GEN s390x-softmmu/config-devices.mak.tmp
GEN riscv64-softmmu/config-devices.mak
GEN sh4eb-softmmu/config-devices.mak.tmp
GEN ppc-softmmu/config-devices.mak
GEN ppcemb-softmmu/config-devices.mak
GEN s390x-softmmu/config-devices.mak
GEN sh4-softmmu/config-devices.mak.tmp
GEN sparc64-softmmu/config-devices.mak.tmp
GEN sparc-softmmu/config-devices.mak.tmp
GEN sh4eb-softmmu/config-devices.mak
GEN tricore-softmmu/config-devices.mak.tmp
GEN sparc-softmmu/config-devices.mak
GEN unicore32-softmmu/config-devices.mak.tmp
GEN sh4-softmmu/config-devices.mak
GEN sparc64-softmmu/config-devices.mak
GEN tricore-softmmu/config-devices.mak
GEN x86_64-softmmu/config-devices.mak.tmp
GEN xtensaeb-softmmu/config-devices.mak.tmp
GEN xtensa-softmmu/config-devices.mak.tmp
GEN unicore32-softmmu/config-devices.mak
GEN aarch64_be-linux-user/config-devices.mak.tmp
GEN xtensaeb-softmmu/config-devices.mak
GEN xtensa-softmmu/config-devices.mak
GEN aarch64-linux-user/config-devices.mak.tmp
GEN x86_64-softmmu/config-devices.mak
GEN aarch64_be-linux-user/config-devices.mak
GEN alpha-linux-user/config-devices.mak.tmp
GEN armeb-linux-user/config-devices.mak.tmp
GEN arm-linux-user/config-devices.mak.tmp
GEN alpha-linux-user/config-devices.mak
GEN armeb-linux-user/config-devices.mak
GEN aarch64-linux-user/config-devices.mak
GEN arm-linux-user/config-devices.mak
GEN cris-linux-user/config-devices.mak.tmp
GEN hppa-linux-user/config-devices.mak.tmp
GEN i386-linux-user/config-devices.mak.tmp
GEN m68k-linux-user/config-devices.mak.tmp
GEN cris-linux-user/config-devices.mak
GEN i386-linux-user/config-devices.mak
GEN hppa-linux-user/config-devices.mak
GEN m68k-linux-user/config-devices.mak
GEN microblazeel-linux-user/config-devices.mak.tmp
GEN mips64el-linux-user/config-devices.mak.tmp
GEN microblaze-linux-user/config-devices.mak.tmp
GEN mips64-linux-user/config-devices.mak.tmp
GEN microblazeel-linux-user/config-devices.mak
GEN microblaze-linux-user/config-devices.mak
GEN mips64-linux-user/config-devices.mak
GEN mips64el-linux-user/config-devices.mak
GEN mipsel-linux-user/config-devices.mak.tmp
GEN mips-linux-user/config-devices.mak.tmp
GEN mipsn32el-linux-user/config-devices.mak.tmp
GEN mipsn32-linux-user/config-devices.mak.tmp
GEN mipsn32el-linux-user/config-devices.mak
GEN mipsel-linux-user/config-devices.mak
GEN mips-linux-user/config-devices.mak
GEN nios2-linux-user/config-devices.mak.tmp
GEN mipsn32-linux-user/config-devices.mak
GEN or1k-linux-user/config-devices.mak.tmp
GEN nios2-linux-user/config-devices.mak
GEN ppc64abi32-linux-user/config-devices.mak.tmp
GEN ppc64le-linux-user/config-devices.mak.tmp
GEN ppc64-linux-user/config-devices.mak.tmp
GEN ppc64abi32-linux-user/config-devices.mak
GEN or1k-linux-user/config-devices.mak
GEN ppc-linux-user/config-devices.mak.tmp
GEN ppc64le-linux-user/config-devices.mak
GEN riscv32-linux-user/config-devices.mak.tmp
GEN riscv64-linux-user/config-devices.mak.tmp
GEN riscv32-linux-user/config-devices.mak
GEN ppc64-linux-user/config-devices.mak
GEN riscv64-linux-user/config-devices.mak
GEN s390x-linux-user/config-devices.mak.tmp
GEN sh4eb-linux-user/config-devices.mak.tmp
GEN sh4-linux-user/config-devices.mak.tmp
GEN ppc-linux-user/config-devices.mak
GEN s390x-linux-user/config-devices.mak
GEN sh4eb-linux-user/config-devices.mak
GEN sh4-linux-user/config-devices.mak
GEN sparc32plus-linux-user/config-devices.mak.tmp
GEN sparc64-linux-user/config-devices.mak.tmp
GEN sparc-linux-user/config-devices.mak.tmp
GEN tilegx-linux-user/config-devices.mak.tmp
GEN sparc-linux-user/config-devices.mak
GEN sparc32plus-linux-user/config-devices.mak
GEN tilegx-linux-user/config-devices.mak
GEN sparc64-linux-user/config-devices.mak
GEN x86_64-linux-user/config-devices.mak.tmp
GEN xtensaeb-linux-user/config-devices.mak.tmp
GEN xtensa-linux-user/config-devices.mak.tmp
GEN x86_64-linux-user/config-devices.mak
GEN config-host.h
GEN xtensaeb-linux-user/config-devices.mak
GEN xtensa-linux-user/config-devices.mak
GEN qemu-options.def
GIT ui/keycodemapdb capstone
GEN qapi-gen
GEN trace/generated-tcg-tracers.h
GEN trace/generated-helpers-wrappers.h
GEN trace/generated-helpers.h
GEN trace/generated-helpers.c
GEN module_block.h
GEN tests/test-qapi-gen
GEN trace-root.h
GEN util/trace.h
GEN crypto/trace.h
GEN io/trace.h
GEN migration/trace.h
GEN block/trace.h
GEN chardev/trace.h
GEN hw/block/trace.h
GEN hw/block/dataplane/trace.h
GEN hw/char/trace.h
GEN hw/intc/trace.h
Submodule 'capstone' (git://git.qemu.org/capstone.git) registered for path 'capstone'
Submodule 'ui/keycodemapdb' (git://git.qemu.org/keycodemapdb.git) registered for path 'ui/keycodemapdb'
GEN hw/net/trace.h
Cloning into '/var/tmp/patchew-tester-tmp-i4e0fs2l/src/capstone'...
GEN hw/rdma/trace.h
GEN hw/rdma/vmw/trace.h
GEN hw/virtio/trace.h
GEN hw/audio/trace.h
GEN hw/misc/trace.h
GEN hw/misc/macio/trace.h
GEN hw/usb/trace.h
GEN hw/scsi/trace.h
GEN hw/nvram/trace.h
GEN hw/display/trace.h
GEN hw/input/trace.h
GEN hw/timer/trace.h
GEN hw/dma/trace.h
GEN hw/sparc/trace.h
GEN hw/sparc64/trace.h
GEN hw/sd/trace.h
GEN hw/isa/trace.h
GEN hw/mem/trace.h
GEN hw/i386/trace.h
GEN hw/i386/xen/trace.h
GEN hw/9pfs/trace.h
GEN hw/ppc/trace.h
GEN hw/pci/trace.h
GEN hw/pci-host/trace.h
GEN hw/s390x/trace.h
GEN hw/vfio/trace.h
GEN hw/acpi/trace.h
GEN hw/arm/trace.h
GEN hw/alpha/trace.h
GEN hw/hppa/trace.h
GEN hw/xen/trace.h
GEN hw/ide/trace.h
GEN hw/tpm/trace.h
GEN ui/trace.h
GEN audio/trace.h
GEN net/trace.h
GEN target/arm/trace.h
GEN target/i386/trace.h
GEN target/mips/trace.h
GEN target/sparc/trace.h
GEN target/s390x/trace.h
GEN target/ppc/trace.h
GEN qom/trace.h
GEN linux-user/trace.h
GEN qapi/trace.h
GEN accel/tcg/trace.h
GEN accel/kvm/trace.h
GEN nbd/trace.h
GEN scsi/trace.h
GEN trace-root.c
GEN util/trace.c
GEN crypto/trace.c
GEN io/trace.c
GEN migration/trace.c
GEN block/trace.c
GEN chardev/trace.c
GEN hw/block/trace.c
GEN hw/block/dataplane/trace.c
GEN hw/char/trace.c
GEN hw/intc/trace.c
GEN hw/net/trace.c
GEN hw/rdma/trace.c
GEN hw/rdma/vmw/trace.c
GEN hw/virtio/trace.c
GEN hw/audio/trace.c
GEN hw/misc/trace.c
GEN hw/misc/macio/trace.c
GEN hw/usb/trace.c
GEN hw/scsi/trace.c
GEN hw/nvram/trace.c
GEN hw/display/trace.c
GEN hw/input/trace.c
GEN hw/timer/trace.c
GEN hw/dma/trace.c
GEN hw/sparc/trace.c
GEN hw/sparc64/trace.c
GEN hw/sd/trace.c
GEN hw/isa/trace.c
GEN hw/mem/trace.c
GEN hw/i386/trace.c
GEN hw/i386/xen/trace.c
GEN hw/9pfs/trace.c
GEN hw/ppc/trace.c
GEN hw/pci/trace.c
GEN hw/pci-host/trace.c
GEN hw/s390x/trace.c
GEN hw/vfio/trace.c
GEN hw/acpi/trace.c
GEN hw/arm/trace.c
GEN hw/alpha/trace.c
GEN hw/hppa/trace.c
GEN hw/xen/trace.c
GEN hw/ide/trace.c
GEN hw/tpm/trace.c
GEN ui/trace.c
GEN audio/trace.c
GEN net/trace.c
GEN target/arm/trace.c
GEN target/i386/trace.c
GEN target/mips/trace.c
GEN target/sparc/trace.c
GEN target/s390x/trace.c
GEN target/ppc/trace.c
GEN qom/trace.c
GEN linux-user/trace.c
GEN qapi/trace.c
GEN accel/tcg/trace.c
GEN accel/kvm/trace.c
GEN nbd/trace.c
GEN scsi/trace.c
GEN config-all-devices.mak
Cloning into '/var/tmp/patchew-tester-tmp-i4e0fs2l/src/ui/keycodemapdb'...
GEN ui/input-keymap-atset1-to-qcode.c
GEN ui/input-keymap-linux-to-qcode.c
GEN ui/input-keymap-qcode-to-atset1.c
GEN ui/input-keymap-qcode-to-atset2.c
GEN ui/input-keymap-qcode-to-atset3.c
GEN ui/input-keymap-qcode-to-linux.c
GEN ui/input-keymap-qcode-to-qnum.c
CC cs.o
GEN ui/input-keymap-qcode-to-sun.c
GEN ui/input-keymap-qnum-to-qcode.c
GEN ui/input-keymap-usb-to-qcode.c
GEN ui/input-keymap-win32-to-qcode.c
GEN ui/input-keymap-x11-to-qcode.c
CC utils.o
GEN ui/input-keymap-xorgevdev-to-qcode.c
GEN ui/input-keymap-xorgkbd-to-qcode.c
CC SStream.o
GEN ui/input-keymap-xorgxquartz-to-qcode.c
CC MCInstrDesc.o
CC MCRegisterInfo.o
GEN ui/input-keymap-xorgxwin-to-qcode.c
CC arch/ARM/ARMDisassembler.o
CC arch/ARM/ARMInstPrinter.o
CC arch/ARM/ARMMapping.o
CC arch/ARM/ARMModule.o
CC arch/AArch64/AArch64BaseInfo.o
CC arch/AArch64/AArch64Disassembler.o
CC arch/AArch64/AArch64InstPrinter.o
CC arch/AArch64/AArch64Mapping.o
CC arch/AArch64/AArch64Module.o
CC arch/Mips/MipsDisassembler.o
CC arch/Mips/MipsInstPrinter.o
CC arch/Mips/MipsMapping.o
CC arch/Mips/MipsModule.o
CC arch/PowerPC/PPCDisassembler.o
CC arch/PowerPC/PPCInstPrinter.o
CC arch/PowerPC/PPCMapping.o
CC arch/PowerPC/PPCModule.o
CC arch/Sparc/SparcDisassembler.o
CC arch/Sparc/SparcInstPrinter.o
CC arch/Sparc/SparcMapping.o
CC arch/Sparc/SparcModule.o
CC arch/SystemZ/SystemZDisassembler.o
CC arch/SystemZ/SystemZInstPrinter.o
CC arch/SystemZ/SystemZMapping.o
CC arch/SystemZ/SystemZModule.o
CC arch/SystemZ/SystemZMCTargetDesc.o
CC arch/X86/X86DisassemblerDecoder.o
CC arch/X86/X86Disassembler.o
CC arch/X86/X86IntelInstPrinter.o
CC arch/X86/X86ATTInstPrinter.o
CC arch/X86/X86Mapping.o
CC arch/X86/X86Module.o
CC arch/XCore/XCoreDisassembler.o
CC arch/XCore/XCoreInstPrinter.o
CC arch/XCore/XCoreMapping.o
CC arch/XCore/XCoreModule.o
CC MCInst.o
AR libcapstone.a
ar: creating /var/tmp/patchew-tester-tmp-i4e0fs2l/src/build/capstone/libcapstone.a
CC tests/qemu-iotests/socket_scm_helper.o
GEN docs/version.texi
GEN qemu-options.texi
GEN qemu-monitor.texi
GEN qemu-img-cmds.texi
GEN qemu-monitor-info.texi
GEN qemu-img.1
GEN qemu-nbd.8
GEN qemu-ga.8
GEN qga/qapi-generated/qapi-gen
GEN docs/qemu-block-drivers.7
GEN fsdev/virtfs-proxy-helper.1
CC qapi/qapi-builtin-types.o
CC qapi/qapi-types.o
CC qapi/qapi-types-block-core.o
CC qapi/qapi-types-block.o
CC qapi/qapi-types-char.o
CC qapi/qapi-types-common.o
CC qapi/qapi-types-crypto.o
CC qapi/qapi-types-introspect.o
CC qapi/qapi-types-job.o
CC qapi/qapi-types-migration.o
CC qapi/qapi-types-misc.o
CC qapi/qapi-types-net.o
CC qapi/qapi-types-rocker.o
CC qapi/qapi-types-run-state.o
CC qapi/qapi-types-sockets.o
CC qapi/qapi-types-tpm.o
CC qapi/qapi-types-trace.o
CC qapi/qapi-types-transaction.o
CC qapi/qapi-types-ui.o
CC qapi/qapi-builtin-visit.o
CC qapi/qapi-visit.o
CC qapi/qapi-visit-block-core.o
CC qapi/qapi-visit-block.o
CC qapi/qapi-visit-char.o
CC qapi/qapi-visit-common.o
CC qapi/qapi-visit-crypto.o
CC qapi/qapi-visit-introspect.o
CC qapi/qapi-visit-job.o
CC qapi/qapi-visit-migration.o
CC qapi/qapi-visit-misc.o
CC qapi/qapi-visit-net.o
CC qapi/qapi-visit-rocker.o
CC qapi/qapi-visit-run-state.o
CC qapi/qapi-visit-sockets.o
CC qapi/qapi-visit-tpm.o
CC qapi/qapi-visit-trace.o
CC qapi/qapi-visit-transaction.o
CC qapi/qapi-visit-ui.o
CC qapi/qapi-events.o
CC qapi/qapi-events-block-core.o
CC qapi/qapi-events-block.o
CC qapi/qapi-events-char.o
CC qapi/qapi-events-common.o
CC qapi/qapi-events-crypto.o
CC qapi/qapi-events-introspect.o
CC qapi/qapi-events-job.o
CC qapi/qapi-events-migration.o
CC qapi/qapi-events-misc.o
CC qapi/qapi-events-net.o
CC qapi/qapi-events-rocker.o
CC qapi/qapi-events-run-state.o
CC qapi/qapi-events-sockets.o
CC qapi/qapi-events-tpm.o
CC qapi/qapi-events-trace.o
CC qapi/qapi-events-transaction.o
CC qapi/qapi-introspect.o
CC qapi/qapi-events-ui.o
CC qapi/qapi-visit-core.o
CC qapi/qapi-dealloc-visitor.o
CC qapi/qobject-input-visitor.o
CC qapi/qobject-output-visitor.o
CC qapi/qmp-registry.o
CC qapi/qmp-dispatch.o
CC qapi/string-input-visitor.o
CC qapi/string-output-visitor.o
CC qapi/opts-visitor.o
CC qapi/qapi-clone-visitor.o
CC qapi/qmp-event.o
CC qapi/qapi-util.o
CC qobject/qnull.o
CC qobject/qnum.o
CC qobject/qstring.o
CC qobject/qdict.o
CC qobject/qlist.o
CC qobject/qbool.o
CC qobject/qlit.o
CC qobject/qjson.o
CC qobject/qobject.o
CC qobject/json-lexer.o
CC qobject/json-streamer.o
CC qobject/json-parser.o
CC trace/control.o
CC trace/qmp.o
CC util/osdep.o
CC util/cutils.o
CC util/unicode.o
CC util/qemu-timer-common.o
CC util/bufferiszero.o
CC util/lockcnt.o
CC util/aiocb.o
CC util/async.o
CC util/aio-wait.o
CC util/thread-pool.o
CC util/qemu-timer.o
CC util/main-loop.o
CC util/iohandler.o
CC util/aio-posix.o
CC util/compatfd.o
CC util/event_notifier-posix.o
CC util/mmap-alloc.o
CC util/oslib-posix.o
CC util/qemu-openpty.o
CC util/qemu-thread-posix.o
CC util/memfd.o
CC util/envlist.o
CC util/path.o
CC util/module.o
CC util/host-utils.o
CC util/bitmap.o
CC util/bitops.o
CC util/hbitmap.o
CC util/fifo8.o
CC util/acl.o
CC util/cacheinfo.o
CC util/error.o
CC util/qemu-error.o
CC util/id.o
CC util/iov.o
CC util/qemu-config.o
CC util/qemu-sockets.o
CC util/uri.o
CC util/notify.o
CC util/qemu-option.o
CC util/qemu-progress.o
CC util/keyval.o
CC util/hexdump.o
CC util/crc32c.o
CC util/uuid.o
CC util/throttle.o
CC util/getauxval.o
CC util/readline.o
CC util/rcu.o
CC util/qemu-coroutine.o
CC util/qemu-coroutine-lock.o
CC util/qemu-coroutine-io.o
CC util/qemu-coroutine-sleep.o
CC util/coroutine-ucontext.o
CC util/buffer.o
CC util/timed-average.o
CC util/base64.o
CC util/log.o
CC util/pagesize.o
CC util/qdist.o
CC util/qht.o
CC util/range.o
CC util/stats64.o
CC util/systemd.o
CC util/iova-tree.o
CC util/vfio-helpers.o
CC trace-root.o
CC util/trace.o
CC crypto/trace.o
CC io/trace.o
CC migration/trace.o
CC block/trace.o
CC chardev/trace.o
CC hw/block/trace.o
CC hw/block/dataplane/trace.o
CC hw/char/trace.o
CC hw/intc/trace.o
CC hw/net/trace.o
CC hw/rdma/trace.o
CC hw/rdma/vmw/trace.o
CC hw/virtio/trace.o
CC hw/audio/trace.o
CC hw/misc/trace.o
CC hw/misc/macio/trace.o
CC hw/usb/trace.o
CC hw/scsi/trace.o
CC hw/nvram/trace.o
CC hw/display/trace.o
CC hw/input/trace.o
CC hw/timer/trace.o
CC hw/dma/trace.o
CC hw/sparc/trace.o
CC hw/sparc64/trace.o
CC hw/sd/trace.o
CC hw/isa/trace.o
CC hw/mem/trace.o
CC hw/i386/trace.o
CC hw/i386/xen/trace.o
CC hw/9pfs/trace.o
CC hw/ppc/trace.o
CC hw/pci/trace.o
CC hw/pci-host/trace.o
CC hw/s390x/trace.o
CC hw/vfio/trace.o
CC hw/acpi/trace.o
CC hw/arm/trace.o
CC hw/alpha/trace.o
CC hw/hppa/trace.o
CC hw/xen/trace.o
CC hw/ide/trace.o
CC hw/tpm/trace.o
CC ui/trace.o
CC audio/trace.o
CC net/trace.o
CC target/arm/trace.o
CC target/i386/trace.o
CC target/mips/trace.o
CC target/sparc/trace.o
CC target/s390x/trace.o
CC target/ppc/trace.o
CC qom/trace.o
CC linux-user/trace.o
CC qapi/trace.o
CC accel/tcg/trace.o
CC accel/kvm/trace.o
CC nbd/trace.o
CC scsi/trace.o
CC crypto/pbkdf-stub.o
CC stubs/arch-query-cpu-def.o
CC stubs/arch-query-cpu-model-expansion.o
CC stubs/arch-query-cpu-model-comparison.o
CC stubs/arch-query-cpu-model-baseline.o
CC stubs/bdrv-next-monitor-owned.o
CC stubs/blk-commit-all.o
CC stubs/blockdev-close-all-bdrv-states.o
CC stubs/clock-warp.o
CC stubs/cpu-get-clock.o
CC stubs/cpu-get-icount.o
CC stubs/dump.o
CC stubs/error-printf.o
CC stubs/fdset.o
CC stubs/gdbstub.o
CC stubs/get-vm-name.o
CC stubs/iothread.o
CC stubs/iothread-lock.o
CC stubs/is-daemonized.o
CC stubs/linux-aio.o
CC stubs/machine-init-done.o
CC stubs/migr-blocker.o
CC stubs/change-state-handler.o
CC stubs/monitor.o
CC stubs/notify-event.o
CC stubs/qtest.o
CC stubs/replay.o
CC stubs/runstate-check.o
CC stubs/set-fd-handler.o
CC stubs/slirp.o
CC stubs/sysbus.o
CC stubs/tpm.o
CC stubs/trace-control.o
CC stubs/uuid.o
CC stubs/vm-stop.o
CC stubs/vmstate.o
CC stubs/qmp_memory_device.o
CC stubs/target-monitor-defs.o
CC stubs/target-get-monitor-def.o
CC stubs/pc_madt_cpu_entry.o
CC stubs/vmgenid.o
CC stubs/xen-common.o
CC stubs/xen-hvm.o
CC stubs/pci-host-piix.o
CC stubs/ram-block.o
CC stubs/pmem.o
CC qemu-keymap.o
/var/tmp/patchew-tester-tmp-i4e0fs2l/src/stubs/pmem.c: In function ‘pmem_persist’:
/var/tmp/patchew-tester-tmp-i4e0fs2l/src/stubs/pmem.c:23:1: error: control reaches end of non-void function [-Werror=return-type]
}
^
cc1: all warnings being treated as errors
make: *** [/var/tmp/patchew-tester-tmp-i4e0fs2l/src/rules.mak:66: stubs/pmem.o] Error 1
make: *** Waiting for unfinished jobs....
CC ui/input-keymap.o
=== OUTPUT END ===
Test command exited with code: 2
---
Email generated automatically by Patchew [http://patchew.org/].
Please send your feedback to patchew-devel@redhat.com
^ permalink raw reply [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-01 8:10 [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory junyan.he
` (8 preceding siblings ...)
2018-06-01 8:33 ` no-reply
@ 2018-06-12 12:06 ` Igor Mammedov
2018-06-12 13:38 ` Junyan He
9 siblings, 1 reply; 28+ messages in thread
From: Igor Mammedov @ 2018-06-12 12:06 UTC (permalink / raw)
To: junyan.he
Cc: qemu-devel, Haozhong Zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, dgilbert, ehabkost, quintela, Junyan He,
stefanha, pbonzini, rth
On Fri, 1 Jun 2018 16:10:22 +0800
junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> QEMU writes to vNVDIMM backends in the vNVDIMM label emulation and
> live migration. If the backend is on the persistent memory, QEMU needs
> to take proper operations to ensure its writes persistent on the
> persistent memory. Otherwise, a host power failure may result in the
> loss the guest data on the persistent memory.
extra question, what are expected behavior when QEMU is built without
libpmem and user specifies pmem=on for backend?
>
> This v3 patch series is based on Marcel's patch "mem: add share
> parameter to memory-backend-ram" [1] because of the changes in patch 1.
>
> [1] https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg03858.html
>
> Previous versions can be found at
> v5: https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg02258.html
> V4: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06993.html
> v3: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg04365.html
> v2: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg01579.html
> v1: https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg05040.html
>
> Changes in v6:
> * (Patch 1) Expose all ram block flags rather than redefine the flags.
> * (Patch 4) Use pkg-config rather the hard check when configure.
> * (Patch 7) Sync and flush all the pmem data when migration completes,
> rather than sync pages one by one in previous version.
>
> Changes in v5:
> * (Patch 9) Add post copy check and output some messages for nvdimm.
>
> Changes in v4:
> * (Patch 2) Fix compilation errors found by patchew.
>
> Changes in v3:
> * (Patch 5) Add a is_pmem flag to ram_handle_compressed() and handle
> PMEM writes in it, so we don't need the _common function.
> * (Patch 6) Expose qemu_get_buffer_common so we can remove the
> unnecessary qemu_get_buffer_to_pmem wrapper.
> * (Patch 8) Add a is_pmem flag to xbzrle_decode_buffer() and handle
> PMEM writes in it, so we can remove the unnecessary
> xbzrle_decode_buffer_{common, to_pmem}.
> * Move libpmem stubs to stubs/pmem.c and fix the compilation failures
> of test-{xbzrle,vmstate}.c.
>
> Changes in v2:
> * (Patch 1) Use a flags parameter in file ram allocation functions.
> * (Patch 2) Add a new option 'pmem' to hostmem-file.
> * (Patch 3) Use libpmem to operate on the persistent memory, rather
> than re-implementing those operations in QEMU.
> * (Patch 5-8) Consider the write persistence in the migration path.
>
>
> Junyan:
> [1/7] memory, exec: Expose all memory block related flags.
> [6/7] migration/ram: Add check and info message to nvdimm post copy.
> [7/7] migration/ram: ensure write persistence on loading all date to PMEM.
>
> Haozhong:
> [5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation
>
> Haozhong & Junyan:
> [2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
> [3/7] hostmem-file: add the 'pmem' option
> [4/7] configure: add libpmem support
>
>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> Signed-off-by: Junyan He <junyan.he@intel.com>
>
> ---
> backends/hostmem-file.c | 28 +++++++++++++++++++++++++++-
> configure | 29 +++++++++++++++++++++++++++++
> docs/nvdimm.txt | 14 ++++++++++++++
> exec.c | 36 ++++++++++++++----------------------
> hw/mem/nvdimm.c | 9 ++++++++-
> include/exec/memory.h | 31 +++++++++++++++++++++++++++++--
> include/exec/ram_addr.h | 28 ++++++++++++++++++++++++++--
> include/qemu/pmem.h | 24 ++++++++++++++++++++++++
> memory.c | 8 +++++---
> migration/ram.c | 18 ++++++++++++++++++
> numa.c | 2 +-
> qemu-options.hx | 7 +++++++
> stubs/Makefile.objs | 1 +
> stubs/pmem.c | 23 +++++++++++++++++++++++
> 14 files changed, 226 insertions(+), 32 deletions(-)
^ permalink raw reply [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-12 12:06 ` Igor Mammedov
@ 2018-06-12 13:38 ` Junyan He
2018-06-12 14:55 ` Igor Mammedov
2018-06-13 20:05 ` Eduardo Habkost
0 siblings, 2 replies; 28+ messages in thread
From: Junyan He @ 2018-06-12 13:38 UTC (permalink / raw)
To: Igor Mammedov
Cc: Haozhong Zhang, xiaoguangrong.eric, crosthwaite.peter, mst,
qemu-devel, dgilbert, quintela, Junyan He, stefanha, pbonzini,
rth, ehabkost
He have pmem_persist and pmem_memcpy_persist stub functions.
If no libpmem and user really specify pmem=on, we just do nothing or just memcpy.
Real persistent memory always require libpmem support its load/save.
If pmem=on and without libpmem, we can think that user want to imitate
pmem=on while the HW environment is without real persistent memory existing.
It may help debug on some machine without real pmem.
________________________________
From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Igor Mammedov <imammedo@redhat.com>
Sent: Tuesday, June 12, 2018 12:06:43 PM
To: junyan.he@gmx.com
Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; crosthwaite.peter@gmail.com; mst@redhat.com; qemu-devel@nongnu.org; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net; ehabkost@redhat.com
Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
On Fri, 1 Jun 2018 16:10:22 +0800
junyan.he@gmx.com wrote:
> From: Junyan He <junyan.he@intel.com>
>
> QEMU writes to vNVDIMM backends in the vNVDIMM label emulation and
> live migration. If the backend is on the persistent memory, QEMU needs
> to take proper operations to ensure its writes persistent on the
> persistent memory. Otherwise, a host power failure may result in the
> loss the guest data on the persistent memory.
extra question, what are expected behavior when QEMU is built without
libpmem and user specifies pmem=on for backend?
>
> This v3 patch series is based on Marcel's patch "mem: add share
> parameter to memory-backend-ram" [1] because of the changes in patch 1.
>
> [1] https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg03858.html
>
> Previous versions can be found at
> v5: https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg02258.html
> V4: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06993.html
> v3: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg04365.html
> v2: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg01579.html
> v1: https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg05040.html
>
> Changes in v6:
> * (Patch 1) Expose all ram block flags rather than redefine the flags.
> * (Patch 4) Use pkg-config rather the hard check when configure.
> * (Patch 7) Sync and flush all the pmem data when migration completes,
> rather than sync pages one by one in previous version.
>
> Changes in v5:
> * (Patch 9) Add post copy check and output some messages for nvdimm.
>
> Changes in v4:
> * (Patch 2) Fix compilation errors found by patchew.
>
> Changes in v3:
> * (Patch 5) Add a is_pmem flag to ram_handle_compressed() and handle
> PMEM writes in it, so we don't need the _common function.
> * (Patch 6) Expose qemu_get_buffer_common so we can remove the
> unnecessary qemu_get_buffer_to_pmem wrapper.
> * (Patch 8) Add a is_pmem flag to xbzrle_decode_buffer() and handle
> PMEM writes in it, so we can remove the unnecessary
> xbzrle_decode_buffer_{common, to_pmem}.
> * Move libpmem stubs to stubs/pmem.c and fix the compilation failures
> of test-{xbzrle,vmstate}.c.
>
> Changes in v2:
> * (Patch 1) Use a flags parameter in file ram allocation functions.
> * (Patch 2) Add a new option 'pmem' to hostmem-file.
> * (Patch 3) Use libpmem to operate on the persistent memory, rather
> than re-implementing those operations in QEMU.
> * (Patch 5-8) Consider the write persistence in the migration path.
>
>
> Junyan:
> [1/7] memory, exec: Expose all memory block related flags.
> [6/7] migration/ram: Add check and info message to nvdimm post copy.
> [7/7] migration/ram: ensure write persistence on loading all date to PMEM.
>
> Haozhong:
> [5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation
>
> Haozhong & Junyan:
> [2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
> [3/7] hostmem-file: add the 'pmem' option
> [4/7] configure: add libpmem support
>
>
> Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> Signed-off-by: Junyan He <junyan.he@intel.com>
>
> ---
> backends/hostmem-file.c | 28 +++++++++++++++++++++++++++-
> configure | 29 +++++++++++++++++++++++++++++
> docs/nvdimm.txt | 14 ++++++++++++++
> exec.c | 36 ++++++++++++++----------------------
> hw/mem/nvdimm.c | 9 ++++++++-
> include/exec/memory.h | 31 +++++++++++++++++++++++++++++--
> include/exec/ram_addr.h | 28 ++++++++++++++++++++++++++--
> include/qemu/pmem.h | 24 ++++++++++++++++++++++++
> memory.c | 8 +++++---
> migration/ram.c | 18 ++++++++++++++++++
> numa.c | 2 +-
> qemu-options.hx | 7 +++++++
> stubs/Makefile.objs | 1 +
> stubs/pmem.c | 23 +++++++++++++++++++++++
> 14 files changed, 226 insertions(+), 32 deletions(-)
^ permalink raw reply [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-12 13:38 ` Junyan He
@ 2018-06-12 14:55 ` Igor Mammedov
2018-06-12 15:27 ` Junyan He
2018-06-13 20:05 ` Eduardo Habkost
1 sibling, 1 reply; 28+ messages in thread
From: Igor Mammedov @ 2018-06-12 14:55 UTC (permalink / raw)
To: Junyan He
Cc: Haozhong Zhang, xiaoguangrong.eric, crosthwaite.peter, mst,
qemu-devel, dgilbert, quintela, Junyan He, stefanha, pbonzini,
rth, ehabkost
On Tue, 12 Jun 2018 13:38:08 +0000
Junyan He <junyan.he@gmx.com> wrote:
> He have pmem_persist and pmem_memcpy_persist stub functions.
>
> If no libpmem and user really specify pmem=on, we just do nothing or just memcpy.
>
> Real persistent memory always require libpmem support its load/save.
>
> If pmem=on and without libpmem, we can think that user want to imitate
>
> pmem=on while the HW environment is without real persistent memory existing.
>
> It may help debug on some machine without real pmem.
For unaware user it would be easy to misconfigure and think that feature
works while it isn't, which cloud lead to data loss.
(1) Maybe we should error out if pmem=on but compiled without libpmem
and add 3rd state pmem=force for testing purposes.
Also can we detect that backing file is located on pmem storage and do [1] if it's not?
>
> ________________________________
> From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Igor Mammedov <imammedo@redhat.com>
> Sent: Tuesday, June 12, 2018 12:06:43 PM
> To: junyan.he@gmx.com
> Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; crosthwaite.peter@gmail.com; mst@redhat.com; qemu-devel@nongnu.org; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net; ehabkost@redhat.com
> Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
>
> On Fri, 1 Jun 2018 16:10:22 +0800
> junyan.he@gmx.com wrote:
>
> > From: Junyan He <junyan.he@intel.com>
> >
> > QEMU writes to vNVDIMM backends in the vNVDIMM label emulation and
> > live migration. If the backend is on the persistent memory, QEMU needs
> > to take proper operations to ensure its writes persistent on the
> > persistent memory. Otherwise, a host power failure may result in the
> > loss the guest data on the persistent memory.
>
> extra question, what are expected behavior when QEMU is built without
> libpmem and user specifies pmem=on for backend?
>
> >
> > This v3 patch series is based on Marcel's patch "mem: add share
> > parameter to memory-backend-ram" [1] because of the changes in patch 1.
> >
> > [1] https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg03858.html
> >
> > Previous versions can be found at
> > v5: https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg02258.html
> > V4: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06993.html
> > v3: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg04365.html
> > v2: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg01579.html
> > v1: https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg05040.html
> >
> > Changes in v6:
> > * (Patch 1) Expose all ram block flags rather than redefine the flags.
> > * (Patch 4) Use pkg-config rather the hard check when configure.
> > * (Patch 7) Sync and flush all the pmem data when migration completes,
> > rather than sync pages one by one in previous version.
> >
> > Changes in v5:
> > * (Patch 9) Add post copy check and output some messages for nvdimm.
> >
> > Changes in v4:
> > * (Patch 2) Fix compilation errors found by patchew.
> >
> > Changes in v3:
> > * (Patch 5) Add a is_pmem flag to ram_handle_compressed() and handle
> > PMEM writes in it, so we don't need the _common function.
> > * (Patch 6) Expose qemu_get_buffer_common so we can remove the
> > unnecessary qemu_get_buffer_to_pmem wrapper.
> > * (Patch 8) Add a is_pmem flag to xbzrle_decode_buffer() and handle
> > PMEM writes in it, so we can remove the unnecessary
> > xbzrle_decode_buffer_{common, to_pmem}.
> > * Move libpmem stubs to stubs/pmem.c and fix the compilation failures
> > of test-{xbzrle,vmstate}.c.
> >
> > Changes in v2:
> > * (Patch 1) Use a flags parameter in file ram allocation functions.
> > * (Patch 2) Add a new option 'pmem' to hostmem-file.
> > * (Patch 3) Use libpmem to operate on the persistent memory, rather
> > than re-implementing those operations in QEMU.
> > * (Patch 5-8) Consider the write persistence in the migration path.
> >
> >
> > Junyan:
> > [1/7] memory, exec: Expose all memory block related flags.
> > [6/7] migration/ram: Add check and info message to nvdimm post copy.
> > [7/7] migration/ram: ensure write persistence on loading all date to PMEM.
> >
> > Haozhong:
> > [5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation
> >
> > Haozhong & Junyan:
> > [2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
> > [3/7] hostmem-file: add the 'pmem' option
> > [4/7] configure: add libpmem support
> >
> >
> > Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> > Signed-off-by: Junyan He <junyan.he@intel.com>
> >
> > ---
> > backends/hostmem-file.c | 28 +++++++++++++++++++++++++++-
> > configure | 29 +++++++++++++++++++++++++++++
> > docs/nvdimm.txt | 14 ++++++++++++++
> > exec.c | 36 ++++++++++++++----------------------
> > hw/mem/nvdimm.c | 9 ++++++++-
> > include/exec/memory.h | 31 +++++++++++++++++++++++++++++--
> > include/exec/ram_addr.h | 28 ++++++++++++++++++++++++++--
> > include/qemu/pmem.h | 24 ++++++++++++++++++++++++
> > memory.c | 8 +++++---
> > migration/ram.c | 18 ++++++++++++++++++
> > numa.c | 2 +-
> > qemu-options.hx | 7 +++++++
> > stubs/Makefile.objs | 1 +
> > stubs/pmem.c | 23 +++++++++++++++++++++++
> > 14 files changed, 226 insertions(+), 32 deletions(-)
>
>
^ permalink raw reply [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-12 14:55 ` Igor Mammedov
@ 2018-06-12 15:27 ` Junyan He
2018-06-12 15:43 ` Junyan He
0 siblings, 1 reply; 28+ messages in thread
From: Junyan He @ 2018-06-12 15:27 UTC (permalink / raw)
To: Igor Mammedov
Cc: Haozhong Zhang, xiaoguangrong.eric, mst, crosthwaite.peter,
qemu-devel, ehabkost, dgilbert, quintela, Junyan He, stefanha,
pbonzini, rth
According to my understand, the file node on real persistent memory do not need to be pmem=on
pmem=on is a feature for file backend class. For example, if we do not have enough hard disk space
and we have enough pmem, we can use file on pmem the same as normal file-backend on hard disk.
That is the file-backend on pmem does not necessary to a nvdimm backend, it can be normal file mapping as well.
so
> detect that backing file is located on pmem storage
may not be a good manner.
> (1) Maybe we should error out if pmem=on but compiled without libpmem
> and add 3rd state pmem=force for testing purposes.
I think we can print a warning message to give user a hint, it can really help user
when they mis-configure.
________________________________
From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Igor Mammedov <imammedo@redhat.com>
Sent: Tuesday, June 12, 2018 2:55:46 PM
To: Junyan He
Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; mst@redhat.com; crosthwaite.peter@gmail.com; qemu-devel@nongnu.org; ehabkost@redhat.com; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net
Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
On Tue, 12 Jun 2018 13:38:08 +0000
Junyan He <junyan.he@gmx.com> wrote:
> He have pmem_persist and pmem_memcpy_persist stub functions.
>
> If no libpmem and user really specify pmem=on, we just do nothing or just memcpy.
>
> Real persistent memory always require libpmem support its load/save.
>
> If pmem=on and without libpmem, we can think that user want to imitate
>
> pmem=on while the HW environment is without real persistent memory existing.
>
> It may help debug on some machine without real pmem.
For unaware user it would be easy to misconfigure and think that feature
works while it isn't, which cloud lead to data loss.
(1) Maybe we should error out if pmem=on but compiled without libpmem
and add 3rd state pmem=force for testing purposes.
Also can we detect that backing file is located on pmem storage and do [1] if it's not?
>
> ________________________________
> From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Igor Mammedov <imammedo@redhat.com>
> Sent: Tuesday, June 12, 2018 12:06:43 PM
> To: junyan.he@gmx.com
> Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; crosthwaite.peter@gmail.com; mst@redhat.com; qemu-devel@nongnu.org; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net; ehabkost@redhat.com
> Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
>
> On Fri, 1 Jun 2018 16:10:22 +0800
> junyan.he@gmx.com wrote:
>
> > From: Junyan He <junyan.he@intel.com>
> >
> > QEMU writes to vNVDIMM backends in the vNVDIMM label emulation and
> > live migration. If the backend is on the persistent memory, QEMU needs
> > to take proper operations to ensure its writes persistent on the
> > persistent memory. Otherwise, a host power failure may result in the
> > loss the guest data on the persistent memory.
>
> extra question, what are expected behavior when QEMU is built without
> libpmem and user specifies pmem=on for backend?
>
> >
> > This v3 patch series is based on Marcel's patch "mem: add share
> > parameter to memory-backend-ram" [1] because of the changes in patch 1.
> >
> > [1] https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg03858.html
> >
> > Previous versions can be found at
> > v5: https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg02258.html
> > V4: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06993.html
> > v3: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg04365.html
> > v2: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg01579.html
> > v1: https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg05040.html
> >
> > Changes in v6:
> > * (Patch 1) Expose all ram block flags rather than redefine the flags.
> > * (Patch 4) Use pkg-config rather the hard check when configure.
> > * (Patch 7) Sync and flush all the pmem data when migration completes,
> > rather than sync pages one by one in previous version.
> >
> > Changes in v5:
> > * (Patch 9) Add post copy check and output some messages for nvdimm.
> >
> > Changes in v4:
> > * (Patch 2) Fix compilation errors found by patchew.
> >
> > Changes in v3:
> > * (Patch 5) Add a is_pmem flag to ram_handle_compressed() and handle
> > PMEM writes in it, so we don't need the _common function.
> > * (Patch 6) Expose qemu_get_buffer_common so we can remove the
> > unnecessary qemu_get_buffer_to_pmem wrapper.
> > * (Patch 8) Add a is_pmem flag to xbzrle_decode_buffer() and handle
> > PMEM writes in it, so we can remove the unnecessary
> > xbzrle_decode_buffer_{common, to_pmem}.
> > * Move libpmem stubs to stubs/pmem.c and fix the compilation failures
> > of test-{xbzrle,vmstate}.c.
> >
> > Changes in v2:
> > * (Patch 1) Use a flags parameter in file ram allocation functions.
> > * (Patch 2) Add a new option 'pmem' to hostmem-file.
> > * (Patch 3) Use libpmem to operate on the persistent memory, rather
> > than re-implementing those operations in QEMU.
> > * (Patch 5-8) Consider the write persistence in the migration path.
> >
> >
> > Junyan:
> > [1/7] memory, exec: Expose all memory block related flags.
> > [6/7] migration/ram: Add check and info message to nvdimm post copy.
> > [7/7] migration/ram: ensure write persistence on loading all date to PMEM.
> >
> > Haozhong:
> > [5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation
> >
> > Haozhong & Junyan:
> > [2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
> > [3/7] hostmem-file: add the 'pmem' option
> > [4/7] configure: add libpmem support
> >
> >
> > Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> > Signed-off-by: Junyan He <junyan.he@intel.com>
> >
> > ---
> > backends/hostmem-file.c | 28 +++++++++++++++++++++++++++-
> > configure | 29 +++++++++++++++++++++++++++++
> > docs/nvdimm.txt | 14 ++++++++++++++
> > exec.c | 36 ++++++++++++++----------------------
> > hw/mem/nvdimm.c | 9 ++++++++-
> > include/exec/memory.h | 31 +++++++++++++++++++++++++++++--
> > include/exec/ram_addr.h | 28 ++++++++++++++++++++++++++--
> > include/qemu/pmem.h | 24 ++++++++++++++++++++++++
> > memory.c | 8 +++++---
> > migration/ram.c | 18 ++++++++++++++++++
> > numa.c | 2 +-
> > qemu-options.hx | 7 +++++++
> > stubs/Makefile.objs | 1 +
> > stubs/pmem.c | 23 +++++++++++++++++++++++
> > 14 files changed, 226 insertions(+), 32 deletions(-)
>
>
^ permalink raw reply [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-12 15:27 ` Junyan He
@ 2018-06-12 15:43 ` Junyan He
2018-06-13 15:58 ` Igor Mammedov
0 siblings, 1 reply; 28+ messages in thread
From: Junyan He @ 2018-06-12 15:43 UTC (permalink / raw)
To: Junyan He, Igor Mammedov
Cc: Haozhong Zhang, xiaoguangrong.eric, crosthwaite.peter, mst,
qemu-devel, dgilbert, quintela, stefanha, pbonzini, rth,
ehabkost
static void file_memory_backend_set_pmem(Object *o, bool value, Error **errp)
{
HostMemoryBackend *backend = MEMORY_BACKEND(o);
HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
if (host_memory_backend_mr_inited(backend)) {
error_setg(errp, "cannot change property 'pmem' of %s '%s'",
object_get_typename(o),
object_get_canonical_path_component(o));
return;
}
#ifndef CONFIG_LIBPMEM
if (value) {
warn_report("Lack of libpmem support while setting the 'pmem' of"
" %s '%s'. We can not ensure the persistence of it"
" without libpmem support.", object_get_typename(o),
object_get_canonical_path_component(o));
}
#endif
fb->is_pmem = value;
}
Is this kind of hint or warning acceptable?
________________________________
From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Junyan He <junyan.he@gmx.com>
Sent: Tuesday, June 12, 2018 3:27:38 PM
To: Igor Mammedov
Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; crosthwaite.peter@gmail.com; mst@redhat.com; qemu-devel@nongnu.org; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net; ehabkost@redhat.com
Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
According to my understand, the file node on real persistent memory do not need to be pmem=on
pmem=on is a feature for file backend class. For example, if we do not have enough hard disk space
and we have enough pmem, we can use file on pmem the same as normal file-backend on hard disk.
That is the file-backend on pmem does not necessary to a nvdimm backend, it can be normal file mapping as well.
so
> detect that backing file is located on pmem storage
may not be a good manner.
> (1) Maybe we should error out if pmem=on but compiled without libpmem
> and add 3rd state pmem=force for testing purposes.
I think we can print a warning message to give user a hint, it can really help user
when they mis-configure.
________________________________
From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Igor Mammedov <imammedo@redhat.com>
Sent: Tuesday, June 12, 2018 2:55:46 PM
To: Junyan He
Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; mst@redhat.com; crosthwaite.peter@gmail.com; qemu-devel@nongnu.org; ehabkost@redhat.com; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net
Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
On Tue, 12 Jun 2018 13:38:08 +0000
Junyan He <junyan.he@gmx.com> wrote:
> He have pmem_persist and pmem_memcpy_persist stub functions.
>
> If no libpmem and user really specify pmem=on, we just do nothing or just memcpy.
>
> Real persistent memory always require libpmem support its load/save.
>
> If pmem=on and without libpmem, we can think that user want to imitate
>
> pmem=on while the HW environment is without real persistent memory existing.
>
> It may help debug on some machine without real pmem.
For unaware user it would be easy to misconfigure and think that feature
works while it isn't, which cloud lead to data loss.
(1) Maybe we should error out if pmem=on but compiled without libpmem
and add 3rd state pmem=force for testing purposes.
Also can we detect that backing file is located on pmem storage and do [1] if it's not?
>
> ________________________________
> From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Igor Mammedov <imammedo@redhat.com>
> Sent: Tuesday, June 12, 2018 12:06:43 PM
> To: junyan.he@gmx.com
> Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; crosthwaite.peter@gmail.com; mst@redhat.com; qemu-devel@nongnu.org; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net; ehabkost@redhat.com
> Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
>
> On Fri, 1 Jun 2018 16:10:22 +0800
> junyan.he@gmx.com wrote:
>
> > From: Junyan He <junyan.he@intel.com>
> >
> > QEMU writes to vNVDIMM backends in the vNVDIMM label emulation and
> > live migration. If the backend is on the persistent memory, QEMU needs
> > to take proper operations to ensure its writes persistent on the
> > persistent memory. Otherwise, a host power failure may result in the
> > loss the guest data on the persistent memory.
>
> extra question, what are expected behavior when QEMU is built without
> libpmem and user specifies pmem=on for backend?
>
> >
> > This v3 patch series is based on Marcel's patch "mem: add share
> > parameter to memory-backend-ram" [1] because of the changes in patch 1.
> >
> > [1] https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg03858.html
> >
> > Previous versions can be found at
> > v5: https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg02258.html
> > V4: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06993.html
> > v3: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg04365.html
> > v2: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg01579.html
> > v1: https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg05040.html
> >
> > Changes in v6:
> > * (Patch 1) Expose all ram block flags rather than redefine the flags.
> > * (Patch 4) Use pkg-config rather the hard check when configure.
> > * (Patch 7) Sync and flush all the pmem data when migration completes,
> > rather than sync pages one by one in previous version.
> >
> > Changes in v5:
> > * (Patch 9) Add post copy check and output some messages for nvdimm.
> >
> > Changes in v4:
> > * (Patch 2) Fix compilation errors found by patchew.
> >
> > Changes in v3:
> > * (Patch 5) Add a is_pmem flag to ram_handle_compressed() and handle
> > PMEM writes in it, so we don't need the _common function.
> > * (Patch 6) Expose qemu_get_buffer_common so we can remove the
> > unnecessary qemu_get_buffer_to_pmem wrapper.
> > * (Patch 8) Add a is_pmem flag to xbzrle_decode_buffer() and handle
> > PMEM writes in it, so we can remove the unnecessary
> > xbzrle_decode_buffer_{common, to_pmem}.
> > * Move libpmem stubs to stubs/pmem.c and fix the compilation failures
> > of test-{xbzrle,vmstate}.c.
> >
> > Changes in v2:
> > * (Patch 1) Use a flags parameter in file ram allocation functions.
> > * (Patch 2) Add a new option 'pmem' to hostmem-file.
> > * (Patch 3) Use libpmem to operate on the persistent memory, rather
> > than re-implementing those operations in QEMU.
> > * (Patch 5-8) Consider the write persistence in the migration path.
> >
> >
> > Junyan:
> > [1/7] memory, exec: Expose all memory block related flags.
> > [6/7] migration/ram: Add check and info message to nvdimm post copy.
> > [7/7] migration/ram: ensure write persistence on loading all date to PMEM.
> >
> > Haozhong:
> > [5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation
> >
> > Haozhong & Junyan:
> > [2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
> > [3/7] hostmem-file: add the 'pmem' option
> > [4/7] configure: add libpmem support
> >
> >
> > Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> > Signed-off-by: Junyan He <junyan.he@intel.com>
> >
> > ---
> > backends/hostmem-file.c | 28 +++++++++++++++++++++++++++-
> > configure | 29 +++++++++++++++++++++++++++++
> > docs/nvdimm.txt | 14 ++++++++++++++
> > exec.c | 36 ++++++++++++++----------------------
> > hw/mem/nvdimm.c | 9 ++++++++-
> > include/exec/memory.h | 31 +++++++++++++++++++++++++++++--
> > include/exec/ram_addr.h | 28 ++++++++++++++++++++++++++--
> > include/qemu/pmem.h | 24 ++++++++++++++++++++++++
> > memory.c | 8 +++++---
> > migration/ram.c | 18 ++++++++++++++++++
> > numa.c | 2 +-
> > qemu-options.hx | 7 +++++++
> > stubs/Makefile.objs | 1 +
> > stubs/pmem.c | 23 +++++++++++++++++++++++
> > 14 files changed, 226 insertions(+), 32 deletions(-)
>
>
^ permalink raw reply [flat|nested] 28+ messages in thread* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-12 15:43 ` Junyan He
@ 2018-06-13 15:58 ` Igor Mammedov
0 siblings, 0 replies; 28+ messages in thread
From: Igor Mammedov @ 2018-06-13 15:58 UTC (permalink / raw)
To: Junyan He
Cc: Junyan He, Haozhong Zhang, xiaoguangrong.eric, mst,
crosthwaite.peter, qemu-devel, ehabkost, dgilbert, quintela,
stefanha, pbonzini, rth
On Tue, 12 Jun 2018 15:43:58 +0000
Junyan He <junyan.he@hotmail.com> wrote:
> static void file_memory_backend_set_pmem(Object *o, bool value, Error **errp)
> {
> HostMemoryBackend *backend = MEMORY_BACKEND(o);
> HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
>
> if (host_memory_backend_mr_inited(backend)) {
> error_setg(errp, "cannot change property 'pmem' of %s '%s'",
> object_get_typename(o),
> object_get_canonical_path_component(o));
> return;
> }
> #ifndef CONFIG_LIBPMEM
> if (value) {
> warn_report("Lack of libpmem support while setting the 'pmem' of"
> " %s '%s'. We can not ensure the persistence of it"
> " without libpmem support.", object_get_typename(o),
> object_get_canonical_path_component(o));
maybe:
"compiled without libpmem support. pmem is enabled in test mode and data persistence is not guarantied which could lead to data loss"
> }
> #endif
> fb->is_pmem = value;
> }
>
>
>
> Is this kind of hint or warning acceptable?
warning might tell typical user that he/she was using pmem incorrectly
but user could see it to late in logs after damage is done.
So nicer way would be if test mode enable separately and pmem=on would work
only if we can guaranty that it would actually work regardless of what is used
(cloud be libpmem if file is on pmem device or fsync if using regular backing storage)
>
> ________________________________
> From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Junyan He <junyan.he@gmx.com>
> Sent: Tuesday, June 12, 2018 3:27:38 PM
> To: Igor Mammedov
> Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; crosthwaite.peter@gmail.com; mst@redhat.com; qemu-devel@nongnu.org; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net; ehabkost@redhat.com
> Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
>
> According to my understand, the file node on real persistent memory do not need to be pmem=on
>
> pmem=on is a feature for file backend class. For example, if we do not have enough hard disk space
>
> and we have enough pmem, we can use file on pmem the same as normal file-backend on hard disk.
>
> That is the file-backend on pmem does not necessary to a nvdimm backend, it can be normal file mapping as well.
>
> so
>
> > detect that backing file is located on pmem storage
>
> may not be a good manner.
>
>
> > (1) Maybe we should error out if pmem=on but compiled without libpmem
> > and add 3rd state pmem=force for testing purposes.
>
> I think we can print a warning message to give user a hint, it can really help user
>
> when they mis-configure.
>
>
> ________________________________
> From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Igor Mammedov <imammedo@redhat.com>
> Sent: Tuesday, June 12, 2018 2:55:46 PM
> To: Junyan He
> Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; mst@redhat.com; crosthwaite.peter@gmail.com; qemu-devel@nongnu.org; ehabkost@redhat.com; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net
> Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
>
> On Tue, 12 Jun 2018 13:38:08 +0000
> Junyan He <junyan.he@gmx.com> wrote:
>
> > He have pmem_persist and pmem_memcpy_persist stub functions.
> >
> > If no libpmem and user really specify pmem=on, we just do nothing or just memcpy.
> >
> > Real persistent memory always require libpmem support its load/save.
> >
> > If pmem=on and without libpmem, we can think that user want to imitate
> >
> > pmem=on while the HW environment is without real persistent memory existing.
> >
> > It may help debug on some machine without real pmem.
>
> For unaware user it would be easy to misconfigure and think that feature
> works while it isn't, which cloud lead to data loss.
>
> (1) Maybe we should error out if pmem=on but compiled without libpmem
> and add 3rd state pmem=force for testing purposes.
>
> Also can we detect that backing file is located on pmem storage and do [1] if it's not?
>
> >
> > ________________________________
> > From: Qemu-devel <qemu-devel-bounces+junyan.he=gmx.com@nongnu.org> on behalf of Igor Mammedov <imammedo@redhat.com>
> > Sent: Tuesday, June 12, 2018 12:06:43 PM
> > To: junyan.he@gmx.com
> > Cc: Haozhong Zhang; xiaoguangrong.eric@gmail.com; crosthwaite.peter@gmail.com; mst@redhat.com; qemu-devel@nongnu.org; dgilbert@redhat.com; quintela@redhat.com; Junyan He; stefanha@redhat.com; pbonzini@redhat.com; rth@twiddle.net; ehabkost@redhat.com
> > Subject: Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
> >
> > On Fri, 1 Jun 2018 16:10:22 +0800
> > junyan.he@gmx.com wrote:
> >
> > > From: Junyan He <junyan.he@intel.com>
> > >
> > > QEMU writes to vNVDIMM backends in the vNVDIMM label emulation and
> > > live migration. If the backend is on the persistent memory, QEMU needs
> > > to take proper operations to ensure its writes persistent on the
> > > persistent memory. Otherwise, a host power failure may result in the
> > > loss the guest data on the persistent memory.
> >
> > extra question, what are expected behavior when QEMU is built without
> > libpmem and user specifies pmem=on for backend?
> >
> > >
> > > This v3 patch series is based on Marcel's patch "mem: add share
> > > parameter to memory-backend-ram" [1] because of the changes in patch 1.
> > >
> > > [1] https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg03858.html
> > >
> > > Previous versions can be found at
> > > v5: https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg02258.html
> > > V4: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06993.html
> > > v3: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg04365.html
> > > v2: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg01579.html
> > > v1: https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg05040.html
> > >
> > > Changes in v6:
> > > * (Patch 1) Expose all ram block flags rather than redefine the flags.
> > > * (Patch 4) Use pkg-config rather the hard check when configure.
> > > * (Patch 7) Sync and flush all the pmem data when migration completes,
> > > rather than sync pages one by one in previous version.
> > >
> > > Changes in v5:
> > > * (Patch 9) Add post copy check and output some messages for nvdimm.
> > >
> > > Changes in v4:
> > > * (Patch 2) Fix compilation errors found by patchew.
> > >
> > > Changes in v3:
> > > * (Patch 5) Add a is_pmem flag to ram_handle_compressed() and handle
> > > PMEM writes in it, so we don't need the _common function.
> > > * (Patch 6) Expose qemu_get_buffer_common so we can remove the
> > > unnecessary qemu_get_buffer_to_pmem wrapper.
> > > * (Patch 8) Add a is_pmem flag to xbzrle_decode_buffer() and handle
> > > PMEM writes in it, so we can remove the unnecessary
> > > xbzrle_decode_buffer_{common, to_pmem}.
> > > * Move libpmem stubs to stubs/pmem.c and fix the compilation failures
> > > of test-{xbzrle,vmstate}.c.
> > >
> > > Changes in v2:
> > > * (Patch 1) Use a flags parameter in file ram allocation functions.
> > > * (Patch 2) Add a new option 'pmem' to hostmem-file.
> > > * (Patch 3) Use libpmem to operate on the persistent memory, rather
> > > than re-implementing those operations in QEMU.
> > > * (Patch 5-8) Consider the write persistence in the migration path.
> > >
> > >
> > > Junyan:
> > > [1/7] memory, exec: Expose all memory block related flags.
> > > [6/7] migration/ram: Add check and info message to nvdimm post copy.
> > > [7/7] migration/ram: ensure write persistence on loading all date to PMEM.
> > >
> > > Haozhong:
> > > [5/7] mem/nvdimm: ensure write persistence to PMEM in label emulation
> > >
> > > Haozhong & Junyan:
> > > [2/7] memory, exec: switch file ram allocation functions to 'flags' parameters
> > > [3/7] hostmem-file: add the 'pmem' option
> > > [4/7] configure: add libpmem support
> > >
> > >
> > > Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
> > > Signed-off-by: Junyan He <junyan.he@intel.com>
> > >
> > > ---
> > > backends/hostmem-file.c | 28 +++++++++++++++++++++++++++-
> > > configure | 29 +++++++++++++++++++++++++++++
> > > docs/nvdimm.txt | 14 ++++++++++++++
> > > exec.c | 36 ++++++++++++++----------------------
> > > hw/mem/nvdimm.c | 9 ++++++++-
> > > include/exec/memory.h | 31 +++++++++++++++++++++++++++++--
> > > include/exec/ram_addr.h | 28 ++++++++++++++++++++++++++--
> > > include/qemu/pmem.h | 24 ++++++++++++++++++++++++
> > > memory.c | 8 +++++---
> > > migration/ram.c | 18 ++++++++++++++++++
> > > numa.c | 2 +-
> > > qemu-options.hx | 7 +++++++
> > > stubs/Makefile.objs | 1 +
> > > stubs/pmem.c | 23 +++++++++++++++++++++++
> > > 14 files changed, 226 insertions(+), 32 deletions(-)
> >
> >
>
>
^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: [Qemu-devel] [PATCH V6 0/7] nvdimm: guarantee persistence of QEMU writes to persistent memory
2018-06-12 13:38 ` Junyan He
2018-06-12 14:55 ` Igor Mammedov
@ 2018-06-13 20:05 ` Eduardo Habkost
1 sibling, 0 replies; 28+ messages in thread
From: Eduardo Habkost @ 2018-06-13 20:05 UTC (permalink / raw)
To: Junyan He
Cc: Igor Mammedov, Haozhong Zhang, xiaoguangrong.eric,
crosthwaite.peter, mst, qemu-devel, dgilbert, quintela,
Junyan He, stefanha, pbonzini, rth
On Tue, Jun 12, 2018 at 01:38:08PM +0000, Junyan He wrote:
> He have pmem_persist and pmem_memcpy_persist stub functions.
>
> If no libpmem and user really specify pmem=on, we just do nothing or just memcpy.
>
> Real persistent memory always require libpmem support its load/save.
>
> If pmem=on and without libpmem, we can think that user want to imitate
>
> pmem=on while the HW environment is without real persistent memory existing.
>
> It may help debug on some machine without real pmem.
What exactly it would help debug? Is there any difference
between testing the code with pmem=off and pmem=on if libptest is
unavailable?
I would prefer to simply not let the user set pmem=on if libptest
is not available.
--
Eduardo
^ permalink raw reply [flat|nested] 28+ messages in thread