From f0c13ef1a8f31be08bf1b1244fe4565f11f4b009 Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Wed, 28 Apr 2010 19:15:24 +0300
Subject: [PATCH] KVM: x86 emulator: cleanup xchg emulation

Dst operand is already initialized during decoding stage. No need to
reinitialize.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kvm/emulate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index a81e6bfcade7..a99d49cc8934 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2804,8 +2804,8 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
 			break;
 		}
 	case 0x91 ... 0x97: /* xchg reg,rax */
-		c->src.type = c->dst.type = OP_REG;
-		c->src.bytes = c->dst.bytes = c->op_bytes;
+		c->src.type = OP_REG;
+		c->src.bytes = c->op_bytes;
 		c->src.ptr = (unsigned long *) &c->regs[VCPU_REGS_RAX];
 		c->src.val = *(c->src.ptr);
 		goto xchg;