Re: [PATCH v2] x86/cpuid: do not expand max leaves on restore

[Jan Beulich <jbeulich@xxxxxxxx>]

On 23.04.2021 15:17, Roger Pau Monne wrote:
> When restoring limit the maximum leaves to the ones supported by Xen
> 4.12 in order to not expand the maximum leaves a guests sees. Note
> this is unlikely to cause real issues.
> 
> 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.
> 
> Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Thanks, looks plausible to me, so
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>

Jan