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Commit 3ccb8827 authored by Aurelien Jarno's avatar Aurelien Jarno Committed by Avi Kivity
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KVM: Remove dead code in the cmpxchg instruction emulation 



The writeback fixes (02c03a32) let
some dead code in the cmpxchg instruction emulation. Remove it.

Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 62b3ffb8

drivers/kvm/x86_emulate.c

+0 −2
Original line number Original line Diff line number Diff line
@@ -1278,8 +1278,6 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) 
		src.orig_val = src.val;

		src.orig_val = src.val;

		src.val = _regs[VCPU_REGS_RAX];

		src.val = _regs[VCPU_REGS_RAX];

		emulate_2op_SrcV("cmp", src, dst, _eflags);

		emulate_2op_SrcV("cmp", src, dst, _eflags);

		/* Always write back. The question is: where to? */

		d |= Mov;

		if (_eflags & EFLG_ZF) {

		if (_eflags & EFLG_ZF) {

			/* Success: write back to memory. */

			/* Success: write back to memory. */

			dst.val = src.orig_val;

			dst.val = src.orig_val;