On Thu, 2009-04-23 at 14:49 -0700, Nigel Gamble wrote:
> On Feb 24, 2009, at 1:51 PM, Andrew Lyon wrote:
>
> > On Tue, Feb 24, 2009 at 9:22 PM, Jeremy Fitzhardinge
> > <jeremy@xxxxxxxx> wrote:
> >> Boris Derzhavets wrote:
> >>>
> >>> X-Server fails to start on GeForce 8500 GT
> >>> Attempting "startx" i get a trace back.
> >>> Does it mean , that a proper NVIDIA driver is just not available
> >>> for the
> >>> most recent
> >>> 2.6.29-rc5 ?
> >>>
> >>
> >> Are you using the nvidia binary driver? I would be surprised if it
> >> worked
> >> out of the box; if changes need to be made to the binary parts, it
> >> may not
> >> be fixable at all.
> >>
> >> J
> >
> > I believe the current driver works with Xen because somebody outside
> > of nvidia contributed a patch, I use the nvidia binary driver with Xen
> > 3.2.1 and my custom dom0 kernel which is 2.6.27.10 patched with
> > openSUSE Xen patches rebased to apply to vanilla, it works very well
> > but when pv_ops is merged into mainline the nvidia driver will
> > probably work when it is running on the bare metal but not under Xen
> > :(.
> >
> > Having said that the patch for Xen support only touched the open
> > source parts of the driver, as soon as the current problems with hvm
> > on pv_ops are fixed I will be testing pv_ops and nvidia driver and I
> > will attempt to fix any problems, my C skills are improving so I might
> > be able to figure it out.
>
>
> Did you ever figure this out? I've just hit the same problem. It
> looks like the source code part of the Nvidia kernel module has the
> code necessary to work on an old Xen Linux, but if it detects
> CONFIG_PARAVIRT set for a pv_ops kernel, it gives up an doesn't
> attempt to work with Xen at all.
>
> Nigel
I have this basically working on paravirt ops, but Jeremy's work has
some of the needed symbols as EXPORT_SYMBOL_GPL(), so that needs to be
cleaned up somehow before I can put out a patch (as I am not comfortable
in doing it yet).
Jeremy, I need get_phys_to_machine() and set_phys_to_machine() to be
changed to EXPORT_SYMBOL() for this. AFAIK, the equivilant symbols are
EXPORT_SYMBOL() in XenLinux 2.6.18.
Can you make it happen? Also, if we had a way of knowing whether or not
we are running under the hypervisor, I could ultimately make it work
with the right codepaths under both configurations.
William
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