Re: [RFC PATCH 2/9] KVM: x86: Add a kvm-only leaf for RRSBA_CTRL

Ricardo Neri
2022-12-14T21:25:44Z

On Sun, Dec 11, 2022 at 12:00:39AM +0800, Zhang Chen wrote:
> KVM needs to check if guests can see RRSBA_CTRL. If a guest is using
> retpoline and cannot see RRSBA_CTRL and the host enumerates RRSBA,
> KVM is responsible for setting RRSBA_DIS_S for the guest.
>
> This allows VM migration from parts doesn't enumerates RRSBA to those

perhaps s/parts doesn't enumerates/parts that do not enumerate/ reads
better?

> that enumerate RRSBA.

and here maybe s/that enumerate RRSBA/do/ ?

Thanks and BR,
Ricardo