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authorNitin A Kamble <nitin.a.kamble@intel.com>2007-08-28 17:58:52 -0700
committerAvi Kivity <avi@qumranet.com>2007-10-13 10:18:28 +0200
commit7d316911632acb8ba8cb7c1dd318ba723c9f1d50 (patch)
tree458b003794584fc80163339b468e2435b4470fbf /drivers/kvm/x86_emulate.c
parentbfdaab090386e7dda8c442721eeb91179258dad4 (diff)
KVM: x86 emulator: push imm8
Implement the instruction push imm8 opcode: 0x6a Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/x86_emulate.c')
-rw-r--r--drivers/kvm/x86_emulate.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 86171ca794dd..4fc2da6aae7d 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -104,10 +104,11 @@ static u8 opcode_table[256] = {
/* 0x58 - 0x5F */
ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps,
- /* 0x60 - 0x6B */
+ /* 0x60 - 0x67 */
0, 0, 0, DstReg | SrcMem32 | ModRM | Mov /* movsxd (x86/64) */ ,
- 0, 0, 0, 0, 0, 0, 0, 0,
- /* 0x6C - 0x6F */
+ 0, 0, 0, 0,
+ /* 0x68 - 0x6F */
+ 0, 0, ImplicitOps|Mov, 0,
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* insb, insw/insd */
SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* outsb, outsw/outsd */
/* 0x70 - 0x7F */
@@ -919,6 +920,16 @@ done_prefixes:
goto cannot_emulate;
dst.val = (s32) src.val;
break;
+ case 0x6a: /* push imm8 */
+ src.val = 0L;
+ src.val = insn_fetch(s8, 1, _eip);
+push:
+ dst.type = OP_MEM;
+ dst.bytes = op_bytes;
+ dst.val = src.val;
+ register_address_increment(_regs[VCPU_REGS_RSP], -op_bytes);
+ dst.ptr = register_address(ctxt->ss_base, _regs[VCPU_REGS_RSP]);
+ break;
case 0x80 ... 0x83: /* Grp1 */
switch (modrm_reg) {
case 0: