Paolo Bonzini <pbonz...@redhat.com> writes:
> On 12/03/2018 16:12, Vitaly Kuznetsov wrote:
>>
>> - if (has_msr_hv_frequencies && tsc_is_stable_and_known(env)) {
>> + if (has_msr_hv_frequencies && env->tsc_khz) {
>
> Should this be
>
> ((env->tsc_khz && has_msr_hv_reenlightenment) ||
> tsc_is_stable_and_known(env))
>
> so that you don't regress on older kernels?
>
I don't actually see where the regression might come from: frequency
MSRs are supported regardless or reenlightenment/invtsc and there's
nothing wrong with exposing them but I may be missing something..
--
Vitaly
