diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/exec/memory.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index aada969628..2322732dce 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -454,6 +454,22 @@ void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr, hwaddr size); /** + * memory_region_test_and_clear_dirty: Check whether a range of bytes is dirty + * for a specified client. It clears them. + * + * Checks whether a range of bytes has been written to since the last + * call to memory_region_reset_dirty() with the same @client. Dirty logging + * must be enabled. + * + * @mr: the memory region being queried. + * @addr: the address (relative to the start of the region) being queried. + * @size: the size of the range being queried. + * @client: the user of the logging information; %DIRTY_MEMORY_MIGRATION or + * %DIRTY_MEMORY_VGA. + */ +bool memory_region_test_and_clear_dirty(MemoryRegion *mr, hwaddr addr, + hwaddr size, unsigned client); +/** * memory_region_sync_dirty_bitmap: Synchronize a region's dirty bitmap with * any external TLBs (e.g. kvm) * |