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KVM: x86 emulator: push imm8

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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>
This commit is contained in:
Nitin A Kamble 2007-08-28 17:58:52 -07:00 committed by Avi Kivity
parent bfdaab0903
commit 7d31691163
1 changed files with 14 additions and 3 deletions
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17
drivers/kvm/x86_emulate.c
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@ -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 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
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: