Re: [Xen-devel] [PATCH] libxl: passthrough: avoid passing through devices not owned by pciback

[George Dunlap <George.Dunlap@xxxxxxxxxxxxx>]

On Thu, Apr 5, 2012 at 2:13 AM, Hao, Xudong <xudong.hao@xxxxxxxxx> wrote:
>
>> -----Original Message-----
>> From: Ian Jackson [mailto:Ian.Jackson@xxxxxxxxxxxxx]
>> Sent: Tuesday, April 03, 2012 1:01 AM
>> To: Hao, Xudong
>> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Kay, Allen M
>> Subject: Re: [Xen-devel] [PATCH] libxl: passthrough: avoid passing through
>> devices not owned by pciback
>>
>> Hao, Xudong writes ("[Xen-devel] [PATCH] libxl: passthrough: avoid passing
>> through devices not owned by pciback"):
>> > <Porting from Xen 4.1 tree.>
>> >
>> > libxl: passthrough: avoid passing through devices not owned by pciback
>>
>> I'm afraid this no longer applies to xen-unstable.hg tip.
>>
> Reason?
>
> If no pciback checking, one device could be assigned to guest even it's being 
> used by dom0, is there security issue?

I think Ian is saying that the actual patch itself doesn't apply. That is,

$ patch -p1 < passthru.diff

fails; so he's asking you to send a new version of the patch.

 -George

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