Andy Lutomirski <luto@xxxxxxxxxx> writes:
> All this being said, do we currently have any system that supports
> PCID *and* remote flushes? I guess KVM has some mechanism, but I'm
> not that familiar with its exact capabilities. If I remember right,
> Hyper-V doesn't expose PCID yet.
>
It already does (and support it to certain extent), see
commit 617ab45c9a8900e64a78b43696c02598b8cad68b
Author: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
Date: Wed Jan 24 11:36:29 2018 +0100
x86/hyperv: Stop suppressing X86_FEATURE_PCID
--
Vitaly
