Re: [Xen-users] Xen 4 VGA Passthrough - Keyboard/Mouse?

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, Apr 08, 2010 at 01:20:22PM -0600, Nick Couchman wrote:
> > 
> > Which dom0 kernel are you using? 
> 
> I'm running openSuSE 11.2, so it is not the PV OPS dom0, nor is it 2.6.18, 
> exactly.  Closer to 2.6.18, though, I believe.
> 

OK.

> > 
> > Did you read this:
> > http://wiki.xensource.com/xenwiki/XenPCIpassthrough
> > 
> > Especially the fact that pvops dom0 kernel has xen-pciback and not just 
> > pciback..
> 
> Yep...and I actually managed to get PCI forwarding for the video card and the 
> USB controller working...mostly.  I'm still getting an error when I try to 
> forward PCI devices for my USB 2.0 controller through - the error is this:
> 
> Error: pci: 0000:00:1d.7: non-page-aligned MMIO BAR found
>

http://wiki.xensource.com/xenwiki/XenPCIpassthrough has an entry about exactly 
this problem.. 

> If I just do the USB 1.1 controllers, it works fine - both of the on-board 
> 2.0 controllers behave this way, though.  I have tried the guestdev, 
> reassigndev, and reassign_resources parameters on the kernel boot line, to no 
> avail.  Any further hints on this front would be appreciated!
> 

You need to figure out the proper parameter for your kernel, and use it.. it 
should fix the problem.

What's the exact dom0 kernel version you have? 

-- Pasi



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