Commit ee45b58e authored by Wei Yongjun's avatar Wei Yongjun Committed by Avi Kivity
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KVM: x86 emulator: add setcc instruction emulation 



Add setcc instruction emulation (opcode 0x0f 0x90~0x9f)

Signed-off-by: default avatarWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 9cf4c4fc

arch/x86/kvm/emulate.c

+4 −1
Original line number Diff line number Diff line
@@ -2362,7 +2362,7 @@ static struct opcode twobyte_table[256] = { 
	/* 0x80 - 0x8F */

	X16(D(SrcImm)),

	/* 0x90 - 0x9F */

	N, N, N, N, N, N, N, N, N, N, N, N, N, N, N, N,

	X16(D(ByteOp | DstMem | SrcNone | ModRM| Mov)),

	/* 0xA0 - 0xA7 */

	D(ImplicitOps | Stack), D(ImplicitOps | Stack),

	N, D(DstMem | SrcReg | ModRM | BitOp),
@@ -3424,6 +3424,9 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) 
		if (test_cc(c->b, ctxt->eflags))

			jmp_rel(c, c->src.val);

		break;

	case 0x90 ... 0x9f:     /* setcc r/m8 */

		c->dst.val = test_cc(c->b, ctxt->eflags);

		break;

	case 0xa0:	  /* push fs */

		emulate_push_sreg(ctxt, ops, VCPU_SREG_FS);

		break;