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From: Avi Kivity <avi@redhat.com>
To: Mohammed Gamal <m.gamal005@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH non-atomic-injection] x86 emulator: Add 2 operand imul instruction (opcode 0x0f 0xaf)
Date: Wed, 18 Aug 2010 20:56:18 +0300	[thread overview]
Message-ID: <4C6C1EC2.9030106@redhat.com> (raw)
In-Reply-To: <1282153210-4309-1-git-send-email-m.gamal005@gmail.com>

  On 08/18/2010 08:40 PM, Mohammed Gamal wrote:
> Signed-off-by: Mohammed Gamal<m.gamal005@gmail.com>
> ---
>   arch/x86/kvm/emulate.c |    5 ++++-
>   1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
> index cb3282c..3311c68 100644
> --- a/arch/x86/kvm/emulate.c
> +++ b/arch/x86/kvm/emulate.c
> @@ -2474,7 +2474,7 @@ static struct opcode twobyte_table[256] = {
>   	N, D(DstMem | SrcReg | ModRM | BitOp | Lock),
>   	D(DstMem | SrcReg | Src2ImmByte | ModRM),
>   	D(DstMem | SrcReg | Src2CL | ModRM),
> -	D(ModRM), N,
> +	D(ModRM), D(DstReg | SrcMem | ModRM),
>   	/* 0xB0 - 0xB7 */
>   	D(ByteOp | DstMem | SrcReg | ModRM | Lock), D(DstMem | SrcReg | ModRM | Lock),
>   	N, D(DstMem | SrcReg | ModRM | BitOp | Lock),
> @@ -3567,6 +3567,9 @@ twobyte_insn:
>   		break;
>   	case 0xae:              /* clflush */
>   		break;
> +	case 0xaf:
> +		emulate_2op_SrcV_nobyte("imul", c->src, c->dst, ctxt->eflags);
> +		break;
>   	case 0xb0 ... 0xb1:	/* cmpxchg */
>   		/*
>   		 * Save real source value, then compare EAX against

I already added this, please look at the non-atomic-injection branch.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.


  reply	other threads:[~2010-08-18 17:56 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-18 17:40 [PATCH non-atomic-injection] x86 emulator: Add 2 operand imul instruction (opcode 0x0f 0xaf) Mohammed Gamal
2010-08-18 17:56 ` Avi Kivity [this message]
2010-08-18 18:04   ` Mohammed Gamal
2010-08-18 19:25     ` Mohammed Gamal
2010-08-19  6:38       ` Avi Kivity
2010-08-19 13:09         ` Mohammed Gamal

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