From e97e883f8bfbe02cfc2bfff45e68921dfe590c7e Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 6 Jul 2010 16:51:09 +0800 Subject: [PATCH] KVM: x86 emulator: fix 'and AL,imm8' instruction decoding 'and AL,imm8' should be mask as ByteOp, otherwise the dest operand length will no correct and we may fill the full EAX when writeback. Signed-off-by: Wei Yongjun Signed-off-by: Avi Kivity --- arch/x86/kvm/emulate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index ad8d7cdd1eb9..59568ad21ab3 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -123,7 +123,7 @@ static u32 opcode_table[256] = { /* 0x20 - 0x27 */ ByteOp | DstMem | SrcReg | ModRM | Lock, DstMem | SrcReg | ModRM | Lock, ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM, - DstAcc | SrcImmByte, DstAcc | SrcImm, 0, 0, + ByteOp | DstAcc | SrcImmByte, DstAcc | SrcImm, 0, 0, /* 0x28 - 0x2F */ ByteOp | DstMem | SrcReg | ModRM | Lock, DstMem | SrcReg | ModRM | Lock, ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM,