KVM: x86 emulator: do not munge rep prefix
Currently we store a rep prefix as 1 or 2 depending on whether it is a REPE or
REPNE. Since sse instructions depend on the prefix value, store it as the
original opcode to simplify things further on.
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 0ad47b8..075bb6f 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2692,10 +2692,8 @@
c->lock_prefix = 1;
break;
case 0xf2: /* REPNE/REPNZ */
- c->rep_prefix = REPNE_PREFIX;
- break;
case 0xf3: /* REP/REPE/REPZ */
- c->rep_prefix = REPE_PREFIX;
+ c->rep_prefix = c->b;
break;
default:
goto done_prefixes;