Comment # 26 on bug 1202541 from Dario Faggioli

(In reply to Bernhard Wiedemann from comment #25)
> Created attachment 861119 [details]
> virsh cpu-baseline
>
Cool, thanks!

Interestingly, lwp is not there (not sure if it'd still show up anyway,
though).

In any case, the fact that it was there only for some CPUs:
- could be (part of) the cause of the issue, although I don't think we can be
100% sure
- looks like a bug to me (but I'd have to re-check the specs)

In any case^2, using the output of this command as the <cpu> of the VMs is,
IMO, definitely the best way forward.