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[Qemu-devel] [PATCH 05/10] RFC: Add memory region snapshot bitmap get fu
From: |
junyan . he |
Subject: |
[Qemu-devel] [PATCH 05/10] RFC: Add memory region snapshot bitmap get function. |
Date: |
Tue, 13 Mar 2018 16:33:48 +0800 |
From: Junyan He <address@hidden>
We need to get the bitmap content of the snapshot when enable dirty
log trace for nvdimm.
Signed-off-by: Junyan He <address@hidden>
---
exec.c | 7 +++++++
include/exec/memory.h | 9 +++++++++
include/exec/ram_addr.h | 2 ++
memory.c | 7 +++++++
4 files changed, 25 insertions(+)
diff --git a/exec.c b/exec.c
index a9181e6..3d2bf0d 100644
--- a/exec.c
+++ b/exec.c
@@ -1235,6 +1235,13 @@ bool
cpu_physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap,
return false;
}
+unsigned long *cpu_physical_memory_snapshot_get_dirty_bitmap
+ (DirtyBitmapSnapshot *snap)
+{
+ assert(snap);
+ return snap->dirty;
+}
+
/* Called from RCU critical section */
hwaddr memory_region_section_get_iotlb(CPUState *cpu,
MemoryRegionSection *section,
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 31eae0a..f742995 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1179,6 +1179,15 @@ bool memory_region_snapshot_get_dirty(MemoryRegion *mr,
hwaddr addr, hwaddr size);
/**
+ * memory_region_snapshot_get_dirty_bitmap: Get the dirty bitmap data of
+ * snapshot.
+ *
+ * @snap: the dirty bitmap snapshot
+ */
+unsigned long *memory_region_snapshot_get_dirty_bitmap
+ (DirtyBitmapSnapshot *snap);
+
+/**
* memory_region_reset_dirty: Mark a range of pages as clean, for a specified
* client.
*
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index cf2446a..ce366c1 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -371,6 +371,8 @@ DirtyBitmapSnapshot
*cpu_physical_memory_snapshot_and_clear_dirty
bool cpu_physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap,
ram_addr_t start,
ram_addr_t length);
+unsigned long *cpu_physical_memory_snapshot_get_dirty_bitmap
+ (DirtyBitmapSnapshot *snap);
static inline void cpu_physical_memory_clear_dirty_range(ram_addr_t start,
ram_addr_t length)
diff --git a/memory.c b/memory.c
index 4a8a2fe..68f17f0 100644
--- a/memory.c
+++ b/memory.c
@@ -1991,6 +1991,13 @@ DirtyBitmapSnapshot
*memory_region_snapshot_and_clear_dirty(MemoryRegion *mr,
memory_region_get_ram_addr(mr) + addr, size, client);
}
+unsigned long *memory_region_snapshot_get_dirty_bitmap
+ (DirtyBitmapSnapshot *snap)
+{
+ assert(snap);
+ return cpu_physical_memory_snapshot_get_dirty_bitmap(snap);
+}
+
bool memory_region_snapshot_get_dirty(MemoryRegion *mr, DirtyBitmapSnapshot
*snap,
hwaddr addr, hwaddr size)
{
--
2.7.4
- [Qemu-devel] [PATCH 08/10] RFC: Add a section_id parameter to save_live_iterate call., (continued)
- [Qemu-devel] [PATCH 08/10] RFC: Add a section_id parameter to save_live_iterate call., junyan . he, 2018/03/13
- [Qemu-devel] [PATCH 09/10] RFC: Add nvdimm snapshot saving to migration., junyan . he, 2018/03/13
- [Qemu-devel] [PATCH 10/10] RFC: Enable nvdimm snapshot functions., junyan . he, 2018/03/13
- Re: [Qemu-devel] [PATCH 00/10] RFC: Optimize nvdimm kind memory for snapshot., no-reply, 2018/03/13
- Re: [Qemu-devel] [PATCH 00/10] RFC: Optimize nvdimm kind memory for snapshot., no-reply, 2018/03/14
- [Qemu-devel] [PATCH 00/10] RFC: Optimize nvdimm kind memory for snapshot., junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 01/10] RFC: Add save and support snapshot dependency function to block driver., junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 04/10] RFC: Set memory_region_set_log available for more client., junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 07/10] RFC: Add get_current_snapshot_info to get the snapshot state., junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 10/10] RFC: Enable nvdimm snapshot functions., junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 05/10] RFC: Add memory region snapshot bitmap get function.,
junyan . he <=
- [Qemu-devel] [PATCH 08/10] RFC: Add a section_id parameter to save_live_iterate call., junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 03/10] RFC: Implement save and support snapshot dependency in block driver layer., junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 06/10] RFC: Add save dependency functions to qemu_file, junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 02/10] RFC: Implement qcow2's snapshot dependent saving function., junyan . he, 2018/03/15
- [Qemu-devel] [PATCH 09/10] RFC: Add nvdimm snapshot saving to migration., junyan . he, 2018/03/15
- Re: [Qemu-devel] [PATCH 00/10] RFC: Optimize nvdimm kind memory for snapshot., no-reply, 2018/03/15
- Re: [Qemu-devel] [PATCH 00/10] RFC: Optimize nvdimm kind memory for snapshot., no-reply, 2018/03/15