RE: [PATCH v3 05/17] iommufd/hw_pagetable: Do not populate user-managed hw_pagetables

From: Liu, Yi L yi.l.liu@intel.com Sent: Monday, July 24, 2023 7:04 PM

From: Nicolin Chen nicolinc@nvidia.com

A user-managed hw_pagetable does not need to get populated, since it is managed by a guest OS. Move the iopt_table_add_domain and list_add_tail calls into a helper, where the hwpt pointer will be redirected to its hwpt->parent if it's available.

Signed-off-by: Nicolin Chen nicolinc@nvidia.com Signed-off-by: Yi Liu yi.l.liu@intel.com

Reviewed-by: Kevin Tian kevin.tian@intel.com