Commit 06cb7046 authored by Wei Yongjun's avatar Wei Yongjun Committed by Avi Kivity
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KVM: x86 emulator: use SrcAcc to simplify stos decoding 



Use SrcAcc to simplify stos decoding.

Signed-off-by: default avatarWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 6e154e56

arch/x86/kvm/emulate.c

+2 −3
Original line number Diff line number Diff line
@@ -2235,7 +2235,8 @@ static struct opcode opcode_table[256] = { 
	D(ByteOp | SrcSI | DstDI | Mov | String), D(SrcSI | DstDI | Mov | String),

	D(ByteOp | SrcSI | DstDI | String), D(SrcSI | DstDI | String),

	/* 0xA8 - 0xAF */

	D(DstAcc | SrcImmByte | ByteOp), D(DstAcc | SrcImm), D(ByteOp | DstDI | Mov | String), D(DstDI | Mov | String),

	D(DstAcc | SrcImmByte | ByteOp), D(DstAcc | SrcImm),

	D(ByteOp | SrcAcc | DstDI | Mov | String), D(SrcAcc | DstDI | Mov | String),

	D(ByteOp | SrcSI | DstAcc | Mov | String), D(SrcSI | DstAcc | Mov | String),

	D(ByteOp | DstDI | String), D(DstDI | String),

	/* 0xB0 - 0xB7 */
@@ -2996,8 +2997,6 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) 
	case 0xa8 ... 0xa9:	/* test ax, imm */

		goto test;

	case 0xaa ... 0xab:	/* stos */

		c->dst.val = c->regs[VCPU_REGS_RAX];

		break;

	case 0xac ... 0xad:	/* lods */

		goto mov;

	case 0xae ... 0xaf:	/* scas */