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Re: [Xen-devel] [ANNOUNCE] Xen 3.4.0 released!

To: Dirk Utterback <dirk.utterback@xxxxxxxxx>
Subject: Re: [Xen-devel] [ANNOUNCE] Xen 3.4.0 released!
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 19 May 2009 22:44:04 -0700
Cc: zen <sagitar.zen@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
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On 19/05/2009 18:04, "Dirk Utterback" <dirk.utterback@xxxxxxxxx> wrote:

>> 
>>> Does it need vt-d or not for device passthrough?
>> 
>> It needs vt-d. Actually I have a hacky patch for providing limited support
>> for passthrough without vt-d, which I attach here. It lets you pass through
>> devices to the first HVM guest that you create. You're on your own with this
>> patch!
> 
>   Will your patch go into main tree and  passthrough w/o vt-d be officially
> supported with future Xen?
> It might be for minor thing for servers, but really critical for laptops. Thx.

It would need clean reimplementation, but yes something like this will
probably end up in the tree at some point.

 -- Keir



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