[Pkg-libvirt-maintainers] Bug#797513: Bug#797513: Regression in support for custom CPU configuration

[Guido Günther]

Hi,
On Mon, Aug 31, 2015 at 05:27:40PM +0100, Ben Hutchings wrote:
> On Mon, 2015-08-31 at 11:37 +0200, Guido Günther wrote:
> > Hi,
> > On Mon, Aug 31, 2015 at 10:06:04AM +0100, Ben Hutchings wrote:
> > > Source: libvirt
> > > Version: 1.2.18-2
> > > Severity: important
> > > 
> > > Since the upgrade to 1.2.18-2, most of my VMs fail to start:
> > > 
> > > virsh # start sid
> > > error: Failed to start domain sid
> > > error: unsupported configuration: guest and host CPU are not 
> > > compatible: host CPU vendor does not match required CPU vendor 
> > > Intel
> > 
> > Can you check which version you updated from so I can go digging what
> > changed in this area?
> 
> 1.2.16-2
> 
> > > 
> > > This is the CPU I have:
> > > 
> > > processor	: 0
> > > vendor_id	: GenuineIntel
> > 
> > Looks pretty much like a Intel CPU :(. Any chance you can check
> > 1.2.19-rc1 from experimental to see if this regression got fixed. 
> 
> I'll try that later.

Can you please attach the output of

    virsh capabilities | xpath -e //host

I'd be keen to know what the <vendor> element says. I retried on a
Westmere and the CPU type is detected correctly.

Cheers,
 -- Guido