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| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2013-01-13 23:49:07 +0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2013-01-21 22:58:33 -0200 |
| commit | 93c05d3ef25275829d421a255271595ac219a518 (patch) | |
| tree | b987097751977ca63bd9a9ef53956cd0d14127c3 /tools/perf/scripts/python/sched-migration.py | |
| parent | 95b3cf69bdf8b27a02d878e24ca353cebb4e009e (diff) | |
KVM: x86: improve reexecute_instruction
The current reexecute_instruction can not well detect the failed instruction
emulation. It allows guest to retry all the instructions except it accesses
on error pfn
For example, some cases are nested-write-protect - if the page we want to
write is used as PDE but it chains to itself. Under this case, we should
stop the emulation and report the case to userspace
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions