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

[Bart Coninckx <bart.coninckx@xxxxxxxxxx>]

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?

thx,

B.

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