Messages in this thread | | | Date | Mon, 20 Mar 2023 09:47:06 -0300 | From | Jason Gunthorpe <> | Subject | Re: [PATCH 04/12] iommufd: Pass parent hwpt and user_data to iommufd_hw_pagetable_alloc() |
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On Fri, Mar 17, 2023 at 10:23:54AM +0000, Tian, Kevin wrote: > > From: Liu, Yi L <yi.l.liu@intel.com> > > 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
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