diff options
| author | Xiao Guangrong <[email protected]> | 2015-05-11 22:55:21 +0800 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2015-05-19 20:52:36 +0200 |
| commit | edc90b7dc4ceef62ef0ad9cc6c3f5dc770e83ad2 (patch) | |
| tree | 36a2ab127ab4f6a01fc33190abf3e06682f6ceba /tools/perf/scripts/python/sched-migration.py | |
| parent | 428e3d08574b77876ea5e71f294f91bd8afa51b5 (diff) | |
KVM: MMU: fix SMAP virtualization
KVM may turn a user page to a kernel page when kernel writes a readonly
user page if CR0.WP = 1. This shadow page entry will be reused after
SMAP is enabled so that kernel is allowed to access this user page
Fix it by setting SMAP && !CR0.WP into shadow page's role and reset mmu
once CR4.SMAP is updated
Signed-off-by: Xiao Guangrong <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions