Re: [Xen-devel] Is possible to do GPU virtualization in Intel® Atom?

["Wang, Hongbo" <hongbo.wang@xxxxxxxxx>]

Hi,

Intel GVT-g supports Intel Core platform, E3 server platform but we haven't 
tried your Atom Minnowboard.
The GPU generation delta needs additional GPU device model development work.
If you're using Skylake architecture based Atom (Apollo lake) platform, GVT-g 
can work with additional SoC patches.

BTW: GVT-g doesn't need VT-d not like other pass though devices.


Best regards.
Hongbo
Tel: +86-21-6116 7445
MP: +86-1364 1793 689
Mail: hongbo.wang@xxxxxxxxx


> -----Original Message-----
> From: Zhang, Haozhong
> Sent: Thursday, August 3, 2017 12:57 PM
> To: Asharaf Perinchikkal <Asharaf.Perinchikkal@xxxxxxxxxxxxxxxx>
> Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>; xen-devel@xxxxxxxxxxxxx;
> Anoop Babu <anoop.babu@xxxxxxxxxxxxxxxx>; Wang, Hongbo
> <hongbo.wang@xxxxxxxxx>
> Subject: Re: [Xen-devel] Is possible to do GPU virtualization in Intel® Atom?
> 
> +Hongbo from Intel GPU virtualization team
> 
> On 08/02/17 09:41 +0000, Asharaf Perinchikkal wrote:
> > Is possible to achieve GPU virtualization in Intel® Atom using para
> virtualization?
> > ________________________________________
> > From: Roger Pau Monné [roger.pau@xxxxxxxxxx]
> > Sent: Wednesday, August 02, 2017 1:04 PM
> > To: Asharaf Perinchikkal
> > Cc: xen-devel@xxxxxxxxxxxxx; Anoop Babu
> > Subject: Re: [Xen-devel] Is possible to do GPU virtualization in Intel® 
> > Atom?
> >
> > On Tue, Aug 01, 2017 at 10:01:01AM +0000, Asharaf Perinchikkal wrote:
> > > Hi All,
> > >
> > >
> > > In Intel® Atom™ E3845(MinnowBoard Turbot Quad-Core board) has only
> support for Virtualization Technology (VT-x).
> > >
> > > No support for Intel® Virtualization Technology for Directed I/O
> > > (VT-d).
> > > [https://ark.intel.com/products/78475/Intel-Atom-Processor-E3845-2M-
> > > Cache-1_91-GHz]
> >
> > Without VT-d (IOMMU) you won't be able to passthrough any physical
> > device to a guest, so no, you won't be able to do GPU passthrough (at
> > least in a safe way).
> >
> > Roger.
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