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| author | Liran Alon <liran.alon@oracle.com> | 2017-11-05 16:56:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-03 17:04:26 +0100 |
| commit | 80d2b5af21d2a29abfd58d378195a446dbc3ae43 (patch) | |
| tree | 9bb59eca9034a164b69aaca0f43911a48ca2585d /scripts | |
| parent | 3d4df917d67191bca18aec35b9d1065d718fc39c (diff) | |
KVM: x86: Don't re-execute instruction when not passing CR2 value
[ Upstream commit 9b8ae63798cb97e785a667ff27e43fa6220cb734 ]
In case of instruction-decode failure or emulation failure,
x86_emulate_instruction() will call reexecute_instruction() which will
attempt to use the cr2 value passed to x86_emulate_instruction().
However, when x86_emulate_instruction() is called from
emulate_instruction(), cr2 is not passed (passed as 0) and therefore
it doesn't make sense to execute reexecute_instruction() logic at all.
Fixes: 51d8b66199e9 ("KVM: cleanup emulate_instruction")
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions