<p dir="ltr">> this avoid some bad setup like Opteron vcpu on a intel host for example,<br>
> and avoid some bad live migrations</p>
<p dir="ltr">I wonder if there's a reliable way to prevent selecting a mismatching CPU in the GUI/API... Won't stop bad choices in direct config edits, nor bad choices made prior to such an update (not to mention the bad migrations you mentioned above), so this patch would be important either way, but it would be nice to prevent selecting a non-functioning option in the first place.</p>