On Fri, Apr 23, 2021 at 02:41:32PM +0200, Jan Beulich wrote: > On 23.04.2021 12:54, Roger Pau Monne wrote: > > When restoring limit the maximum leaves to the ones supported by Xen > > 4.13 in order to not expand the maximum leaf a guests sees. Note this > > is unlikely to cause real issues. > > Why 4.13 (and not 4.12) here when ... > > > Guests restored from Xen versions 4.13 or greater will contain CPUID > > data on the stream that will override the values set by > > xc_cpuid_apply_policy. > > ... 4.13 already communicates the values?
Urg, yes, my bad. This should have been limited to the max leaves supported by 4.12, not 4.13. Let me send a new version also incorporating the feedback from below. Thanks, Roger.