> From: Yi Liu <yi.l.liu@xxxxxxxxx> > Sent: Thursday, May 11, 2023 10:39 PM > > > @@ -88,7 +90,10 @@ iommufd_hw_pagetable_alloc(struct iommufd_ctx > *ictx, struct iommufd_ioas *ioas, > refcount_inc(&ioas->obj.users); > hwpt->ioas = ioas; > > - hwpt->domain = iommu_domain_alloc(idev->dev->bus); > + if (ops->domain_alloc_user) > + hwpt->domain = ops->domain_alloc_user(idev->dev, NULL, > NULL); > + else > + hwpt->domain = iommu_domain_alloc(idev->dev->bus); this reminds the comment for @domain_alloc_user() should clarify that UNMANGED domain type is assumed when no user data is provided, to be compatible with iommu_domain_alloc().
