| commit | b3e4e63fd9ee8cd5d9047b89e0d463d5c48ee5b5 | [log] [tgz] |
|---|---|---|
| author | Marcelo Tosatti <marcelo@kvack.org> | Fri Dec 07 07:56:58 2007 -0500 |
| committer | Avi Kivity <avi@qumranet.com> | Wed Jan 30 17:53:19 2008 +0200 |
| tree | a7e1cd372a26b36d9fc4d6a7a12523e07f7a9f5e | |
| parent | 80a8119ca3f021037b8513d39dbb0ffd1af86b20 [diff] |
KVM: MMU: Use cmpxchg for pte updates on walk_addr() In preparation for multi-threaded guest pte walking, use cmpxchg() when updating guest pte's. This guarantees that the assignment of the dirty bit can't be lost if two CPU's are faulting the same address simultaneously. [avi: fix kunmap_atomic() parameters] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>