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xen-users
Re: [Xen-users] GPL PV drivers
On Thu, Jan 07, 2010 at 05:15:28PM -0800, Brian Krusic wrote:
> Hi james.
>
> Perhaps you can help me.
>
> So I have pic pass through working for an Nvidia card which is my 2nd
> graphics adapter.
>
> I wish to dedicate it to a particular domU.
>
> Besides adding the below line in my domU config file;
>
> pci = ['07:00.0']
>
> What else do I need to do before compiling Nvidia drivers (I found a
> few write ups that tell you how to do this) in that domU?
>
VGA/graphics pci passthrough is pretty much different from a 'normal'
PCI passthrough (NIC, disk controller/HBA, usb host, sound card).
VGA passthrough requires emulation of various legacy x86 memory ranges,
IO ports, and whatnot. It also requires re-execution of VGA adapter BIOS
in the guest.
Various people have gotten it working with xen-unstable (upcoming Xen 4.0)
but I think all of them needed some custom modified patches.
Intel guys have been working on VGA passthrough stuff.
See xen-devel mailinglist archives about Xen VGA passthrough.
-- Pasi
> Incidentally, do you know how to make the above pci line work in the
> new domU config syntax?
>
> - Brian
>
> On Jan 7, 2010, at 5:03 PM, James Harper wrote:
>
> >>Hi,
> >>Is James Harper / GPL PV drivers
> >>borrowed some GPL code from the Linux kernel related to enumering
> >>PCI devices
> >>on Windows or something like this?
> >>Can someone please clarify this. Thank you in advance.
> >
> >I'm not sure what the question is. I used the Linux PV stuff as
> >inspiration for the GPLPV drivers and there is some direct cut &
> >paste in there but Windows is sufficiently different to Linux that
> >most of the work had to be done from scratch.
> >
> >Or maybe you asking about PCI passthrough?
> >
> >James
> >_______________________________________________
> >Xen-users mailing list
> >Xen-users@xxxxxxxxxxxxxxxxxxx
> >http://lists.xensource.com/xen-users
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
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