From: Nitin A Kamble <[EMAIL PROTECTED]>
Implement emulation of more jump conditional instructions
jcc shortrel
opcodes: 0x70 - 0x7f
Signed-off-by: Nitin A Kamble <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
drivers/kvm/x86_emulate.c | 15 +++++++++++++--
1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index ba53e59..57f1a5a 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -111,8 +111,12 @@ static u8 opcode_table[256] = {
0, 0, ImplicitOps|Mov, 0,
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* insb,
insw/insd */
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* outsb,
outsw/outsd */
- /* 0x70 - 0x7F */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0x70 - 0x77 */
+ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+ /* 0x78 - 0x7F */
+ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
+ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
/* 0x80 - 0x87 */
ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM,
ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
@@ -1268,6 +1272,13 @@ special_insn:
) == 0)
return -1;
return 0;
+ case 0x70 ... 0x7f: /* jcc (short) */ {
+ int rel = insn_fetch(s8, 1, _eip);
+
+ if (test_cc(b, _eflags))
+ JMP_REL(rel);
+ break;
+ }
case 0x9c: /* pushf */
src.val = (unsigned long) _eflags;
goto push;
--
1.5.3
-
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