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KVM: x86 emulator: pushf

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Implement emulation of instruction
	pushf
	opcode: 0x9c

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 18:22:47 -07:00 committed by Avi Kivity
parent f6eed39135
commit fd2a760865
1 changed files with 9 additions and 2 deletions
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11
drivers/kvm/x86_emulate.c
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@ -123,7 +123,7 @@ static u8 opcode_table[256] = {
ByteOp | DstReg | SrcMem | ModRM | Mov, DstReg | SrcMem | ModRM | Mov,
0, 0, 0, DstMem | SrcNone | ModRM | Mov,
/* 0x90 - 0x9F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ImplicitOps, 0, 0, 0,
/* 0xA0 - 0xA7 */
ByteOp | DstReg | SrcMem | Mov, DstReg | SrcMem | Mov,
ByteOp | DstMem | SrcReg | Mov, DstMem | SrcReg | Mov,
@ -928,7 +928,8 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
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]);
dst.ptr = (void *) register_address(ctxt->ss_base,
_regs[VCPU_REGS_RSP]);
break;
case 0x80 ... 0x83: /* Grp1 */
switch (modrm_reg) {
@ -1216,6 +1217,12 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
) == 0)
return -1;
return 0;
case 0x9c: /* pushf */
src.val = (unsigned long) _eflags;
goto push;
break;
}
if (rep_prefix) {
if (_regs[VCPU_REGS_RCX] == 0) {