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| author | Avi Kivity <avi@redhat.com> | 2011-07-31 22:47:58 +0300 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2011-08-05 10:57:36 -0500 |
| commit | 39b796f28c7b42cbecdba56612b5f9c505572f07 (patch) | |
| tree | 87db2934c17c74c2508b71fb381722f293d7a1d7 | |
| parent | 9510a486381c073a98d96db85b1102313fea9e03 (diff) | |
| download | focaccia-qemu-39b796f28c7b42cbecdba56612b5f9c505572f07.tar.gz focaccia-qemu-39b796f28c7b42cbecdba56612b5f9c505572f07.zip | |
memory: synchronize dirty bitmap before unmapping a range
When a range is being unmapped, ask accelerators (e.g. kvm) to synchronize the dirty bitmap to avoid losing information forever. Fixes grub2 screen update. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | memory.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/memory.c b/memory.c index 5c6e63df3f..5f20320d2b 100644 --- a/memory.c +++ b/memory.c @@ -245,6 +245,10 @@ static void as_memory_range_add(AddressSpace *as, FlatRange *fr) static void as_memory_range_del(AddressSpace *as, FlatRange *fr) { + if (fr->dirty_log_mask) { + cpu_physical_sync_dirty_bitmap(fr->addr.start, + fr->addr.start + fr->addr.size); + } cpu_register_physical_memory(fr->addr.start, fr->addr.size, IO_MEM_UNASSIGNED); } |