Re: [PATCH RESEND v4 5/9] KVM: VMX: Add init/set/get functions for SPP

[Jim Mattson]

On Thu, Aug 15, 2019 at 6:41 AM Yang Weijiang <weijiang.yang@xxxxxxxxx> wrote:

> Hi, Vitaly,
> After looked into the issue and others, I feel to make SPP co-existing
> with nested VM is not good, the major reason is, L1 pages protected by
> SPP are transparent to L1 VM, if it launches L2 VM, probably the
> pages would be allocated to L2 VM, and that will bother to L1 and L2.
> Given the feature is new and I don't see nested VM can benefit
> from it right now, I would like to make SPP and nested feature mutually
> exclusive, i.e., detecting if the other part is active before activate one
> feature,what do you think of it?
> thanks!

How do you propose making the features mutually exclusive?