Re: [Xen-users] live migration in between different CPU families

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Mar 23, 2011 at 06:14:58PM +0100, Bart Coninckx wrote:
> On Wednesday 23 March 2011 18:03:59 Pasi Kärkkäinen wrote:
> > On Tue, Mar 22, 2011 at 10:49:41PM +0100, Bart Coninckx wrote:
> > > Hi,
> > > 
> > > referring to thread:
> > > http://www.gossamer-threads.com/lists/xen/users/177385#177385.
> > > 
> > > I have the same thing going on: hypervisors with E5620 Xeon CPUs and
> > > hypervisors with E5410 CPUs. Live migrations go wrong when domU's are
> > > not created on the latter and move from the E5410 servers to more recent
> > > ones. The rationale being that these CPU's have less or other
> > > capabilities than the newer ones.
> > > 
> > > Is there any way to work around this?
> > 
> > You can set the cpuid to present common CPU model to the VM.
> > Did you try that?
> > 
> > -- Pasi
> 
> Hi Pasi,
> 
> no, first time I hear of it. I just googled a bit for that but there seems to 
> be little info on that. 
> The only seemly relevant info on that is here:
> 
> http://zhigang.org/wiki/XenCPUID
> 
> but that makes less sense to me. 
> Is this what you are referring to?
> 

Yep, I'm talking about that stuff.
There should be examples in xen-users archives.

-- Pasi


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