Re: [PATCH v2] kvm: x86: Disable KVM_HC_CLOCK_PAIRING if tsc is in always catchup mode

Vitaly Kuznetsov
2022-02-17T17:16:53Z

Paolo Bonzini <pbonzini@redhat.com> writes:

> On 2/17/22 17:09, Vitaly Kuznetsov wrote:
...
>> (but I still mildly dislike using 'EOPNOTSUPP' for a temporary condition
>> on the host).
>
> It's not temporary, always-catchup is set on KVM_SET_TSC_KHZ and never
> goes away.

Even if the guest is migrated (back) to the host which supports TSC
scaling?

--
Vitaly