Commit 7d316911 authored by Nitin A Kamble's avatar Nitin A Kamble Committed by Avi Kivity
Browse files

KVM: x86 emulator: push imm8 



Implement the instruction

    	push imm8
    	opcode: 0x6a

Signed-off-by: default avatarNitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent bfdaab09

drivers/kvm/x86_emulate.c

+14 −3
Original line number Diff line number Diff line
@@ -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: