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| author | Gleb Natapov <gleb@redhat.com> | 2010-03-21 15:58:36 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-17 11:16:38 +0200 |
| commit | de3e6480f76804fe06d460ddb1920c7daa07f29b (patch) | |
| tree | b4c104cd6340daabee6147c65bc04e62166de37b | |
| parent | KVM: x86 emulator: add decoding of CMPXCHG8B dst operand (diff) | |
| download | linux-de3e6480f76804fe06d460ddb1920c7daa07f29b.tar.xz linux-de3e6480f76804fe06d460ddb1920c7daa07f29b.zip | |
KVM: x86 emulator: fix unlocked CMPXCHG8B emulation
When CMPXCHG8B is executed without LOCK prefix it is racy. Preserve this
behaviour in emulator too.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/emulate.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index b8ce53861f68..64c9854f0458 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1724,7 +1724,6 @@ static inline int emulate_grp9(struct x86_emulate_ctxt *ctxt, (u32) c->regs[VCPU_REGS_RBX]; ctxt->eflags |= EFLG_ZF; - c->lock_prefix = 1; } return X86EMUL_CONTINUE; } |