RE: [PATCH v2 03/11] iommufd/hw_pagetable: Use domain_alloc_user op for domain allocation

From: Yi Liu yi.l.liu@intel.com 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().