On Thu, Nov 21, 2019 at 11:32:15AM +0100, Paolo Bonzini wrote:
> On 19/11/19 09:49, Yang Weijiang wrote:
> > + /*
> > + * if it's EPT leaf entry and the physical page is
> > + * SPP protected, then re-enable SPP protection for
> > + * the page.
> > + */
> > + if (kvm->arch.spp_active &&
> > + level == PT_PAGE_TABLE_LEVEL) {
> > + struct kvm_subpage spp_info = {0};
> > + int i;
> > +
> > + spp_info.base_gfn = gfn;
> > + spp_info.npages = 1;
> > + i = kvm_spp_get_permission(kvm, &spp_info);
> > + if (i == 1 &&
> > + spp_info.access_map[0] != FULL_SPP_ACCESS)
> > + new_spte |= PT_SPP_MASK;
> > + }
>
> This can use gfn_to_subpage_wp_info directly (or is_spp_protected if you
> prefer).
>
Sure, will change it, thank you!
> Paolo
