From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: PCI devices missing from domU in pv kernel, hvm OK.
Date: Fri, 11 Jun 2010 09:38:58 -0400
Message-ID: <20100611133857.GB4594@phenom.dumpdata.com>
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	<20100611060936.GM17817@reaktio.net>
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To: Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= <pasik@iki.fi>
Cc: xen-devel@lists.xensource.com, Bruce Edge <bruce.edge@gmail.com>
List-Id: xen-devel@lists.xenproject.org

On Fri, Jun 11, 2010 at 09:09:36AM +0300, Pasi K=E4rkk=E4inen 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.
> >=20
> > I've gone through these
> > http://wiki.xensource.com/xenwiki/XenPCIpassthrough
> >=20
>=20
> It seems you're missing the required kernel parameters for the domU ker=
nel..
> They're described on that wiki page.
>=20
>=20
> >=20
> > Here's the domU boot log:
> > =A0=A0 =A0 =A0 =A0root =A0 =A0 =A0 =3D /dev/nfs
> > =A0=A0 =A0 =A0 =A0nfs_server =3D 135.149.75.134
> > =A0=A0 =A0 =A0 =A0nfs_root =A0 =3D /home/root,tcp
> > =A0=A0 =A0 =A0 =A0initrd =A0 =A0 =3D /import/root/boot/initrd.img-2.6=
.32.14.nfs
> > =A0=A0 =A0 =A0 =A0builder =A0 =A0 =A0=3D linux
> > =A0=A0 =A0 =A0 =A0kernel =A0 =A0 =A0 =3D
> > /import/kaan/bedge/dev_kaan_kernel.kaan.debug/root/boot/vmlinuz-2.6.3=
2.14
> > =A0=A0 =A0 =A0 =A0memory =A0 =A0 =A0 =3D 4096

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