From: Gleb Natapov <gleb@redhat.com>
Date: Wed, 28 Apr 2010 16:15:24 +0000 (+0300)
Subject: KVM: x86 emulator: cleanup xchg emulation
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f0c13ef1a8f31be08bf1b1244fe4565f11f4b009;p=linux-beck.git

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>
---

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 @@ special_insn:
 			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;