diff options
| author | Gerd Hoffmann | 2017-04-21 11:16:25 +0200 |
|---|---|---|
| committer | Gerd Hoffmann | 2017-04-24 10:12:28 +0200 |
| commit | 8deaf12ca1a7c89867df739dc9056080509628bd (patch) | |
| tree | f7bae444ae09a9ed1fe4374c7d91b614529bcb13 /include/exec/exec-all.h | |
| parent | bitmap: add bitmap_copy_and_clear_atomic (diff) | |
| download | qemu-8deaf12ca1a7c89867df739dc9056080509628bd.tar.gz qemu-8deaf12ca1a7c89867df739dc9056080509628bd.tar.xz qemu-8deaf12ca1a7c89867df739dc9056080509628bd.zip | |
memory: add support getting and using a dirty bitmap copy.
This patch adds support for getting and using a local copy of the dirty
bitmap.
memory_region_snapshot_and_clear_dirty() will create a snapshot of the
dirty bitmap for the specified range, clear the dirty bitmap and return
the copy. The returned bitmap can be a bit larger than requested, the
range is expanded so the code can copy unsigned longs from the bitmap
and avoid atomic bit update operations.
memory_region_snapshot_get_dirty() will return the dirty status of
pages, pretty much like memory_region_get_dirty(), but using the copy
returned by memory_region_copy_and_clear_dirty().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20170421091632.30900-3-kraxel@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'include/exec/exec-all.h')
0 files changed, 0 insertions, 0 deletions