Re: [Xen-devel] Question re live migrate on Xen 4.2 re different cpu capabilities

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2013-02-07 at 09:19 +0000, Olaf Hering wrote:
> On Thu, Feb 07, Alex Bligh wrote:
> 
> > Is there any way to do similarly in Xen? Or is Xen live migrate effectively
> > restricted to live migrate between identical CPUs?
> 
> Its mentionend somewhere in the docs that both cpus must be sufficient
> compatible. Use the cpuid= setting in the domU config file to enforce
> this.

You can also level down an entire host using the cpuid_mask_* command
line options described in
http://xenbits.xen.org/docs/unstable/misc/xen-command-line.html 

Ian.



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