Any news or plan about Xen support the APU

Any news or plan about Xen support the APU

[Bei Guan]

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Hi,

Is there any news or plan about Xen support the latest AMD hardware APU
(Accelerated Processing Unit)? Any clue is appreciated.
Thank you very much.



Best Regards,
Bei Guan

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Re: Any news or plan about Xen support the APU

[Konrad Rzeszutek Wilk]

On Mon, Sep 10, 2012 at 08:48:41PM +0800, Bei Guan wrote:
> Hi,
> 
> Is there any news or plan about Xen support the latest AMD hardware APU
> (Accelerated Processing Unit)? Any clue is appreciated.

Not sure what you mean, but it works just fine on the AMD A5 CPU I've?
Are you hitting an issues?
> Thank you very much.
> 
> 
> 
> Best Regards,
> Bei Guan

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

Re: Any news or plan about Xen support the APU

[Bei Guan]

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Hi Konrad,

Thank you very much for your reply. I'm not hitting any issues.

AMD's APU is a new kind of processing device, which integrates a CPU and a
GPU on the same die. I want to know whether Xen has supported the
virtualization of the APU processors? If yes, I can run something
applications in the Xen PV VMs to use this kind of new CPU device.

Something information about the AMD' APU:
http://en.wikipedia.org/wiki/Accelerated_processing_unit
http://blog.netflowdevelopments.com/2012/05/03/what-is-an-apu/
http://www.amd.com/us/products/technologies/fusion/Pages/fusion.aspx


Best Regards,
Bei Guan


2012/9/11 Konrad Rzeszutek Wilk <konrad@kernel.org>

> On Mon, Sep 10, 2012 at 08:48:41PM +0800, Bei Guan wrote:
> > Hi,
> >
> > Is there any news or plan about Xen support the latest AMD hardware APU
> > (Accelerated Processing Unit)? Any clue is appreciated.
>
> Not sure what you mean, but it works just fine on the AMD A5 CPU I've?
> Are you hitting an issues?
> > Thank you very much.
> >
> >
> >
> > Best Regards,
> > Bei Guan
>
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > http://lists.xen.org/xen-devel
>
>


-- 
Best Regards,
Bei Guan

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Re: Any news or plan about Xen support the APU

[Fajar A. Nugraha]

On Tue, Sep 11, 2012 at 8:27 AM, Bei Guan <gbtju85@gmail.com> wrote:
> Hi Konrad,
>
> Thank you very much for your reply. I'm not hitting any issues.
>
> AMD's APU is a new kind of processing device, which integrates a CPU and a
> GPU on the same die. I want to know whether Xen has supported the
> virtualization of the APU processors? If yes, I can run something
> applications in the Xen PV VMs to use this kind of new CPU device.

AFAIK at this point AMD APUs are simply CPU + GPU. Even though they're
in the same die, they're basically different devices. So for the GPU
part, treat it like any other GPU. Which means you could PROBABLY
passthru it to ONE domU, but that's it.

AMD's plan for the future is make a chip which can function as CPU or
GPU as needed, but that hasn't happened yet.

-- 
Fajar

Re: Any news or plan about Xen support the APU

[Bei Guan]

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2012/9/11 Fajar A. Nugraha <list@fajar.net>

> On Tue, Sep 11, 2012 at 8:27 AM, Bei Guan <gbtju85@gmail.com> wrote:
> > Hi Konrad,
> >
> > Thank you very much for your reply. I'm not hitting any issues.
> >
> > AMD's APU is a new kind of processing device, which integrates a CPU and
> a
> > GPU on the same die. I want to know whether Xen has supported the
> > virtualization of the APU processors? If yes, I can run something
> > applications in the Xen PV VMs to use this kind of new CPU device.
>
> AFAIK at this point AMD APUs are simply CPU + GPU. Even though they're
> in the same die, they're basically different devices. So for the GPU
> part, treat it like any other GPU. Which means you could PROBABLY
> passthru it to ONE domU, but that's it.
>
Hi Fajar,

Thank you for your information.
Passthrough is a good method for a VM to use the GPU device. However, the
GPU is exclusively used by a VM in this way. It cannot be shared among
several VMs. I noticed that there are several projects implementing the
virtualization of GPU devices on Xen, such as vCUDA (Hunan University, CN,
2009) and GViM (Georgia IT). But, is there any plan with Xen support the
GPU virtualization in the Xen official code?



Best Regards,
Bei Guan



>
> AMD's plan for the future is make a chip which can function as CPU or
> GPU as needed, but that hasn't happened yet.
>
> --
> Fajar
>



-- 
Best Regards,
Bei Guan

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Re: Any news or plan about Xen support the APU

[Pasi Kärkkäinen]

On Tue, Sep 11, 2012 at 03:33:58PM +0800, Bei Guan wrote:
>    2012/9/11 Fajar A. Nugraha <[1]list@fajar.net>
> 
>      On Tue, Sep 11, 2012 at 8:27 AM, Bei Guan <[2]gbtju85@gmail.com> wrote:
>      > Hi Konrad,
>      >
>      > Thank you very much for your reply. I'm not hitting any issues.
>      >
>      > AMD's APU is a new kind of processing device, which integrates a CPU
>      and a
>      > GPU on the same die. I want to know whether Xen has supported the
>      > virtualization of the APU processors? If yes, I can run something
>      > applications in the Xen PV VMs to use this kind of new CPU device.
> 
>      AFAIK at this point AMD APUs are simply CPU + GPU. Even though they're
>      in the same die, they're basically different devices. So for the GPU
>      part, treat it like any other GPU. Which means you could PROBABLY
>      passthru it to ONE domU, but that's it.
> 
>    Hi Fajar,
>    Thank you for your information.
>    Passthrough is a good method for a VM to use the GPU device. However, the
>    GPU is exclusively used by a VM in this way. It cannot be shared among
>    several VMs. I noticed that there are several projects implementing the
>    virtualization of GPU devices on Xen, such as vCUDA (Hunan University, CN,
>    2009) and GViM (Georgia IT). But, is there any plan with Xen support the
>    GPU virtualization in the Xen official code?
>

Take a look at the following projects:

vGallium / Xen3D:
http://www.cl.cam.ac.uk/~cs448/git/trunk/doc/Build-instructions
http://www.phoronix.com/scan.php?page=news_item&px=ODE2NQ

Chromium:
http://chromium.sourceforge.net/doc/index.html

VMGL:
http://sourceforge.net/projects/vmgl/

Spice OpenGL passthrough / Gallium3D:
http://lists.freedesktop.org/archives/spice-devel/2011-November/006018.html
http://www.phoronix.com/scan.php?page=news_item&px=MTA1NTQ

You might want to take a look at getting Spice/Gallium stuff working nicely with Xen. 

(Xen already has spice support in Xen 4.2, and making QXL working is possible when xen-unstable 
switches to using the most recent Qemu upstream branch during the Xen 4.3 development cycle)

Hopefully those links help..

-- Pasi


>    Best Regards,
>    Bei Guan
>