Re: GPU Passthrough without VT-d

[Dushyant Behl <myselfdushyantbehl@gmail.com>]

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Sorry I was outside so couldn't reply. I found the patch earlier but as
this would be my first project so i was a little conscious about the corner
case bugs.
I was also planning to buy some new hardware so i though i could give it a
go then, Nevertheless i'll try to use the patch in the meantime.

Thanks,
Dushyant





On Sat, Mar 8, 2014 at 10:31 AM, Pasi Kärkkäinen <pasik@iki.fi> wrote:

> On Fri, Mar 07, 2014 at 09:22:32PM +0200, Pasi Kärkkäinen wrote:
> > 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..
> >
>
> See here:
>
> http://old-list-archives.xenproject.org/archives/html/xen-devel/2009-09/msg00018.html
>
> -- Pasi
>
> >
> > >    -
> > >    Dushyant
> > >
> > >    On Fri, Mar 7, 2014 at 12:51 PM, Kai Huang
> > >    <[1]kai.k.huang@linux.intel.com> 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@lists.xen.org
> > >        [3]http://lists.xen.org/xen-devel
> > >
> > > References
> > >
> > >    Visible links
> > >    1. mailto:kai.k.huang@linux.intel.com
> > >    2. mailto:Xen-devel@lists.xen.org
> > >    3. http://lists.xen.org/xen-devel
> >
> > > _______________________________________________
> > > Xen-devel mailing list
> > > Xen-devel@lists.xen.org
> > > http://lists.xen.org/xen-devel
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > http://lists.xen.org/xen-devel
>

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