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Commit e97e883f authored by Wei Yongjun's avatar Wei Yongjun Committed by Avi Kivity
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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: default avatarWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent ce7a0ad3

arch/x86/kvm/emulate.c

+1 −1
Original line number Diff line number Diff line
@@ -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,