On Fri, Jul 21, 2023, Paolo Bonzini wrote:
> On 7/19/23 01:44, Sean Christopherson wrote:
> > +static bool range_has_attrs(struct kvm *kvm, gfn_t start, gfn_t end,
> > + unsigned long attrs)
> > +{
> > + XA_STATE(xas, &kvm->mem_attr_array, start);
> > + unsigned long index;
> > + bool has_attrs;
> > + void *entry;
> > +
> > + rcu_read_lock();
> > +
> > + if (!attrs) {
> > + has_attrs = !xas_find(&xas, end);
> > + goto out;
> > + }
> > +
> > + has_attrs = true;
> > + for (index = start; index < end; index++) {
> > + do {
> > + entry = xas_next(&xas);
> > + } while (xas_retry(&xas, entry));
> > +
> > + if (xas.xa_index != index || xa_to_value(entry) != attrs) {
> > + has_attrs = false;
> > + break;
> > + }
> > + }
> > +
> > +out:
> > + rcu_read_unlock();
> > + return has_attrs;
> > +}
> > +
>
> Can you move this function to virt/kvm/kvm_main.c?
Ah, yeah, that's a good idea.
