Re: [Qemu-devel] [PULL v4 00/18] pci,misc enhancements

[Stefano Stabellini]

On Wed, 10 Jul 2013, Michael S. Tsirkin wrote:
> On Wed, Jul 10, 2013 at 03:11:27PM +0100, Stefano Stabellini wrote:
> > On Sun, 7 Jul 2013, Michael S. Tsirkin wrote:
> > > From: Michael S. Tsirkin <address@hidden>
> > > 
> > > Changes from v3:
> > >     - fix up xen build
> > > 
> > > Changes from v2:
> > >     - rebased to origin/master
> > >     - fixed up botched posting
> > > 
> > > The following changes since commit 
> > > ab8bf29078e0ab8347e2ff8b4e5542f7a0c751cf:
> > > 
> > >   Merge remote-tracking branch 'qemu-kvm/uq/master' into staging 
> > > (2013-07-03 08:37:00 -0500)
> > > 
> > > are available in the git repository at:
> > > 
> > > 
> > >   git://git.kernel.org/pub/scm/virt/kvm/mst/qemu.git tags/for_anthony
> > > 
> > > for you to fetch changes up to 7588e2b0559ae72d3c2952c7807fc05c03099970:
> > > 
> > >   pci: Fold host_buses list into PCIHostState functionality (2013-07-07 
> > > 23:10:57 +0300)
> > 
> > This patch series breaks Xen support in QEMU.
> > Unfortunately QEMU exits at boot time with no output, I'll try to get
> > back to you with more info.
> 
> This is the main change for Xen:
> 
> -    bus = pci_find_root_bus(0);
> +    bus = pci_find_primary_bus();
> 
> Could you please try 1ef7a2a2afedbba47e06af5081a8b4bf6dc1cf71
> that made this change, and 1ef7a2a2afedbba47e06af5081a8b4bf6dc1cf71~1 
> before it?
> 

git bisect tells me that the problem is caused by:

commit f8c457b88d72a48989f190bc3d7b79f4f3b7d11c
Author: Michael S. Tsirkin <address@hidden>
Date:   Mon May 13 20:00:23 2013 +0300

    pc: pass PCI hole ranges to Guests