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authorQing He2007-09-24 17:22:13 +0800
committerAvi Kivity2008-01-30 17:52:49 +0200
commite4f8e03956de4b1a1dc4bbbdefa9c973d01ee91f (patch)
tree968160b42240396d44c94105b5923d57b73a5d8d
parenta01af5ec5163cdc51c00f6dcb22d7766199377cf (diff)
KVM: x86_emulator: no writeback for bt
Signed-off-by: Qing He <qing.he@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
-rw-r--r--drivers/kvm/x86_emulate.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 6161e3f66585..0afe660aec4b 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -1629,6 +1629,7 @@ twobyte_insn:
break;
case 0xa3:
bt: /* bt */
+ c->dst.type = OP_NONE;
/* only subword offset */
c->src.val &= (c->dst.bytes << 3) - 1;
emulate_2op_SrcV_nobyte("bt", c->src, c->dst, ctxt->eflags);