[57/80] KVM: x86: emulator: inc/dec can have lock prefix

From: Greg KH
Date: Fri Sep 24 2010 - 12:33:47 EST


2.6.35-stable review patch. If anyone has any objections, please let us know.

------------------


From: Gleb Natapov <gleb@xxxxxxxxxx>

commit c0e0608cb902af1a1fd8d413ec0a07ee1e62c652 upstream.

Mark inc (0xfe/0 0xff/0) and dec (0xfe/1 0xff/1) as lock prefix capable.

Signed-off-by: Gleb Natapov <gleb@xxxxxxxxxx>
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
arch/x86/kvm/emulate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -345,10 +345,10 @@ static u32 group_table[] = {
DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM,
0, 0, 0, 0,
[Group4*8] =
- ByteOp | DstMem | SrcNone | ModRM, ByteOp | DstMem | SrcNone | ModRM,
+ ByteOp | DstMem | SrcNone | ModRM | Lock, ByteOp | DstMem | SrcNone | ModRM | Lock,
0, 0, 0, 0, 0, 0,
[Group5*8] =
- DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM,
+ DstMem | SrcNone | ModRM | Lock, DstMem | SrcNone | ModRM | Lock,
SrcMem | ModRM | Stack, 0,
SrcMem | ModRM | Stack, SrcMem | ModRM | Src2Mem16 | ImplicitOps,
SrcMem | ModRM | Stack, 0,


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