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memory: remove memory_region_test_and_clear_dirty

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It is unused after g364fb has been converted to use DirtyBitmapSnapshot.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2018-02-06 18:30:04 +01:00
parent f7189ac8e6
commit 77302fb5df
2 changed files with 3 additions and 29 deletions
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24
include/exec/memory.h
View File

@ -1090,33 +1090,15 @@ bool memory_region_get_dirty(MemoryRegion *mr, hwaddr addr,
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_snapshot_and_clear_dirty: Get a snapshot of the dirty
* bitmap and clear it.
*
* Creates a snapshot of the dirty bitmap, clears the dirty bitmap and
* returns the snapshot. The snapshot can then be used to query dirty
* status, using memory_region_snapshot_get_dirty. Unlike
* memory_region_test_and_clear_dirty this allows to query the same
* page multiple times, which is especially useful for display updates
* where the scanlines often are not page aligned.
* status, using memory_region_snapshot_get_dirty. Snapshotting allows
* querying the same page multiple times, which is especially useful for
* display updates where the scanlines often are not page aligned.
*
* The dirty bitmap region which gets copyed into the snapshot (and
* cleared afterwards) can be larger than requested. The boundaries

8
memory.c
View File

@ -1971,14 +1971,6 @@ void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr,
memory_region_get_dirty_log_mask(mr));
}
bool memory_region_test_and_clear_dirty(MemoryRegion *mr, hwaddr addr,
hwaddr size, unsigned client)
{
assert(mr->ram_block);
return cpu_physical_memory_test_and_clear_dirty(
memory_region_get_ram_addr(mr) + addr, size, client);
}
DirtyBitmapSnapshot *memory_region_snapshot_and_clear_dirty(MemoryRegion *mr,
hwaddr addr,
hwaddr size,