Re: [Xen-devel] GPU Passthrough without VT-d

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, Mar 07, 2014 at 11:06:34PM +0530, Dushyant Behl wrote:
>    Thanks for the quick reply. I'll try to look into it.
>

There's an old patch to do that in the Xen wiki.. 

-- Pasi

>    -
>    Dushyant
> 
>    On Fri, Mar 7, 2014 at 12:51 PM, Kai Huang
>    <[1]kai.k.huang@xxxxxxxxxxxxxxx> wrote:
> 
>      In general you cannot do pci passthrough for HVM without IOMMU (vt-d)
>      support, as we need VT-d to support guest physical address to machine
>      address translation for DMA.
> 
>      However, theoretically, you can do it by hacking Xen to setup identical
>      (1:1) mappings for guest's memory, but it's not a pretty way and you
>      should expect to suffer lots of tricky corner case bugs.
> 
>      Thanks,
>      -Kai
> 
>      On 03/07/2014 11:03 AM, Dushyant Behl wrote:
> 
>        Hi all,
> 
>        I am new to the xen community and I wanted to work on the project
>        "Allowing guests to boot with a passed-through GPU as the primary
>        display" but the processor in my system does not supports IO MMU
>        Virtualization (Intel VT-d), it only supports the Intel Virtualization
>        (Intel VT-x). Would it be possible for me to work on the project in
>        anyway?
> 
>        Thanks,
>        Dushyant
> 
>        _______________________________________________
>        Xen-devel mailing list
>        [2]Xen-devel@xxxxxxxxxxxxx
>        [3]http://lists.xen.org/xen-devel
> 
> References
> 
>    Visible links
>    1. mailto:kai.k.huang@xxxxxxxxxxxxxxx
>    2. mailto:Xen-devel@xxxxxxxxxxxxx
>    3. http://lists.xen.org/xen-devel

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


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