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Commit f0c13ef1 authored by Gleb Natapov's avatar Gleb Natapov Committed by Avi Kivity
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KVM: x86 emulator: cleanup xchg emulation 



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

Signed-off-by: default avatarGleb Natapov <gleb@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 054fe9f6

arch/x86/kvm/emulate.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -2804,8 +2804,8 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) 
			break;

			break;

		}

		}

	case 0x91 ... 0x97: /* xchg reg,rax */

	case 0x91 ... 0x97: /* xchg reg,rax */

		c->src.type = c->dst.type = OP_REG;

		c->src.type = OP_REG;

		c->src.bytes = c->dst.bytes = c->op_bytes;

		c->src.bytes = c->op_bytes;

		c->src.ptr = (unsigned long *) &c->regs[VCPU_REGS_RAX];

		c->src.ptr = (unsigned long *) &c->regs[VCPU_REGS_RAX];

		c->src.val = *(c->src.ptr);

		c->src.val = *(c->src.ptr);

		goto xchg;

		goto xchg;