On Fri, Mar 17, 2023 at 10:23:54AM +0000, Tian, Kevin wrote: > > From: Liu, Yi L <yi.l.liu@xxxxxxxxx> > > Sent: Thursday, March 9, 2023 4:09 PM > > > > + /* It must be either NESTED or UNMANAGED, depending on > > parent_domain */ > > + if ((parent_domain && hwpt->domain->type != > > IOMMU_DOMAIN_NESTED) || > > + (!parent_domain && hwpt->domain->type != > > IOMMU_DOMAIN_UNMANAGED)) > > + goto out_abort; > > + > > WARN_ON() Wouldn't that be userspace triggerable? It gets to pick the hwpt used. Jason
