Re: PCI devices missing from domU in pv kernel, hvm OK.

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Fri, Jun 11, 2010 at 09:09:36AM +0300, Pasi Kärkkäinen wrote:
> On Thu, Jun 10, 2010 at 04:25:54PM -0700, Bruce Edge wrote:
> > I had hvm domU working fine. This problem is specific to my pv-ops
> > config. I'm not seeing any PCI devices after I bring up the domU. I
> > was able to get this working as an hvm instance, but not pv.
> > I'd appreciate if anyone could offer some insight as to why I can't
> > see the PCI devices in domU.
> > 
> > I've gone through these
> > http://wiki.xensource.com/xenwiki/XenPCIpassthrough
> > 
> 
> It seems you're missing the required kernel parameters for the domU kernel..
> They're described on that wiki page.
> 
> 
> > 
> > Here's the domU boot log:
> >         root       = /dev/nfs
> >         nfs_server = 135.149.75.134
> >         nfs_root   = /home/root,tcp
> >         initrd     = /import/root/boot/initrd.img-2.6.32.14.nfs
> >         builder      = linux
> >         kernel       =
> > /import/kaan/bedge/dev_kaan_kernel.kaan.debug/root/boot/vmlinuz-2.6.32.14
> >         memory       = 4096

And also there is a bug where we can't do PCI in PV guests when guest
has more than 3GB.