KVM: x86 emulator: introduce DstImmUByte for dst operand decode

Introduce DstImmUByte for dst operand decode, which
will be used for out instruction.

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

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 78541e8fd149..dc074a0c60ca 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -54,6 +54,7 @@
 #define DstAcc      (4<<1)      /* Destination Accumulator */
 #define DstDI       (5<<1)      /* Destination is in ES:(E)DI */
 #define DstMem64    (6<<1)      /* 64bit memory operand */
+#define DstImmUByte (7<<1)      /* 8-bit unsigned immediate operand */
 #define DstMask     (7<<1)
 /* Source operand type. */
 #define SrcNone     (0<<4)      /* No source operand. */
@@ -2693,6 +2694,12 @@ done_prefixes:
                 decode_register_operand(&c->dst, c,
                          c->twobyte && (c->b == 0xb6 || c->b == 0xb7));
                 break;
+        case DstImmUByte:
+                c->dst.type = OP_IMM;
+                c->dst.addr.mem = c->eip;
+                c->dst.bytes = 1;
+                c->dst.val = insn_fetch(u8, 1, c->eip);
+                break;
         case DstMem:
         case DstMem64:
                 c->dst = memop;