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xen-devel
Re: [Xen-devel] kernel mode setting
On Wed, Feb 10, 2010 at 10:45:52AM -0500, Michael D Labriola wrote:
> Well, here's what I've done so far. In a fit of rage aimed towards the
> lameness of the nv driver, I cherry-picked all the drm commits from the
> official nouveau git tree into my xen/master checkout. And it semi-works.
> Baremetal it looks good for a few minutes then X gets corrupted. Under
> Xen 3.4.2, X locks up before anything is even painted to the screen. If I
> force the xorg nouveau driver to use software rendering, my system appears
> to be perfectly stable with good 2d support. My compiled upstream nouveau
> tree works perfectly (although the hardware acceleration is slow).
>
> Now, it was late at night and I was bleary eyed... and that's a TON of
> commits to get merged in a code base I've never looked at before... and I
> GUESSED at which commits to apply... so I'm encouraged that anything
> worked at all. :-)
>
> Now I'm trying to decide if the X lockup under Xen is my fault (mangled a
> merge conflict, missed a commit, etc), or whether something in the 3.4.2
> hypervisor in just plain incompatible with KMS DRM drivers. I suppose I
> can try getting a Xen 4.0-rc build installed and see if the behavior
> changes...
>
> And there's also the potential to try getting it to work under xen/next...
> although I'm not so sure that that would be wise at this point.
It does not have the backends in yet, so you can't launch guests yet :-(
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