diff options
| author | Xiao Guangrong <[email protected]> | 2010-06-30 16:03:28 +0800 |
|---|---|---|
| committer | Avi Kivity <[email protected]> | 2010-08-01 10:47:25 +0300 |
| commit | 9e7b0e7fba45ca3c6357aeb7091ebc281f1de365 (patch) | |
| tree | e92144ed8d954cab432c6ccccacdc3aa2d4c645f /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 5fd5387c89ec99ff6cb82d2477ffeb7211b781c2 (diff) | |
KVM: MMU: fix direct sp's access corrupted
If the mapping is writable but the dirty flag is not set, we will find
the read-only direct sp and setup the mapping, then if the write #PF
occur, we will mark this mapping writable in the read-only direct sp,
now, other real read-only mapping will happily write it without #PF.
It may hurt guest's COW
Fixed by re-install the mapping when write #PF occur.
Signed-off-by: Xiao Guangrong <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions