KVM: x86 emulator: add setcc instruction emulation

Add setcc instruction emulation (opcode 0x0f 0x90~0x9f)

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 0c08bffe6cb4..df349f376da8 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2362,7 +2362,7 @@ static struct opcode twobyte_table[256] = {
         /* 0x80 - 0x8F */
         X16(D(SrcImm)),
         /* 0x90 - 0x9F */
-        N, N, N, N, N, N, N, N, N, N, N, N, N, N, N, N,
+        X16(D(ByteOp | DstMem | SrcNone | ModRM| Mov)),
         /* 0xA0 - 0xA7 */
         D(ImplicitOps | Stack), D(ImplicitOps | Stack),
         N, D(DstMem | SrcReg | ModRM | BitOp),
@@ -3424,6 +3424,9 @@ twobyte_insn:
                 if (test_cc(c->b, ctxt->eflags))
                         jmp_rel(c, c->src.val);
                 break;
+        case 0x90 ... 0x9f:     /* setcc r/m8 */
+                c->dst.val = test_cc(c->b, ctxt->eflags);
+                break;
         case 0xa0:        /* push fs */
                 emulate_push_sreg(ctxt, ops, VCPU_SREG_FS);
                 break;