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Re: [Xen-devel] XenGT GPU virtualization



Cc'ed to the mailing list of Intel graphic virtualization

On 02/23/17 12:36 +0000, Paul Durrant wrote:
> Hi,
> 
>   I’m not actually sure where the latest public release of the xengt code is. 
> Perhaps someone from Intel can comment?
> 
>   Otherwise, if you grab the source ISOs from xenserver.org you can look in 
> the SRPM for xengt. The xengt kernel module is responsible for auditing the 
> servicing the GPU commands from guests.
> 
>   Cheers,
> 
>   Paul
> 
> 
> From: bharat gohil [mailto:ghl.bhrt@xxxxxxxxx]
> Sent: 23 February 2017 12:30
> To: Paul Durrant <Paul.Durrant@xxxxxxxxxx>
> Cc: Anshul Makkar <anshul.makkar@xxxxxxxxxx>; xen-devel@xxxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-devel] XenGT GPU virtualization
> 
> Thanks paul and anshul
> Can you guys point out source code which is audit the GPU command?
> 
> Thanks
> Bharat
> 
> On Mon, Feb 20, 2017 at 9:01 PM, Paul Durrant 
> <Paul.Durrant@xxxxxxxxxx<mailto:Paul.Durrant@xxxxxxxxxx>> wrote:
> No, that’s not correct. The GPU commands are whitelisted and only the 
> commands that can be audited are handled.
> 
>   Paul
> 
> From: Xen-devel 
> [mailto:xen-devel-bounces@xxxxxxxxxxxxx<mailto:xen-devel-bounces@xxxxxxxxxxxxx>]
>  On Behalf Of anshul makkar
> Sent: 20 February 2017 15:16
> To: bharat gohil <ghl.bhrt@xxxxxxxxx<mailto:ghl.bhrt@xxxxxxxxx>>; 
> xen-devel@xxxxxxxxxxxxxxxxxxxx<mailto:xen-devel@xxxxxxxxxxxxxxxxxxxx>
> Subject: Re: [Xen-devel] XenGT GPU virtualization
> 
> 
> 
> 
> On 18/01/17 13:21, bharat gohil wrote:
> Hello
> 
> I am new to GPU and GPU virtualization and found that xen support intel GPU 
> virtualization using XenGT.
> I want to know,
> 1) What are the critical GPU command pass from xen to Dom0?
> 2) How the Dom0 mediator or xen validate the GPU command which is passed from 
> domU GPU driver?
> 3) If one of the domU guest send bad(malicious) command to GPU which led GPU 
> to bad state. Can Dom0 mediator or xen prevents this kind of scenario?
> As far as I know, there is know mediation to check for the commands. Xen does 
> audit the target address space, but not GPU commands.
> 
> --
> Regards,
> Bharat Gohil
> 
> 
> 
> 
> _______________________________________________
> 
> Xen-devel mailing list
> 
> Xen-devel@xxxxxxxxxxxxx<mailto:Xen-devel@xxxxxxxxxxxxx>
> 
> https://lists.xen.org/xen-devel
> 
> 
> 
> 
> --
> Regards,
> Bharat Gohil
> Sr.Software Engineer
> bharat.gohil@xxxxxxxxxx<mailto:bharat.gohil@xxxxxxxxxx>
> +919427054633

> _______________________________________________
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