Re: [PATCH] KVM: VMX: Micro-optimize vmexit time when not exposing PMU

From: Jim Mattson
Date: Thu Mar 12 2020 - 12:22:09 EST


On Thu, Mar 12, 2020 at 3:36 AM Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> wrote:

> Also, speaking about cloud providers and the 'micro' nature of this
> optimization, would it rather make sense to introduce a static branch
> (the policy to disable vPMU is likely to be host wide, right)?

Speaking for a cloud provider, no, the policy is not likely to be host-wide.