28 Jul
2023
28 Jul
'23
9:37 a.m.
From: Yi Liu yi.l.liu@intel.com Sent: Monday, July 24, 2023 7:04 PM
- @domain_alloc_user: allocate a user iommu domain corresponding to
the input
@hwpt_type that is defined as enum iommu_hwpt_type in the
include/uapi/linux/iommufd.h. A returning domain will be
set to an IOMMU_DOMAIN_NESTED type, upon valid@user_data
and @parent that is a kernel-managed domain. Otherwise,
it will be set to an IOMMU_DOMAIN_UNMANAGED type.Return
ERR_PTR on allocation failure.
"If @user_data is valid and @parent points to a kernel-managed domain, the returning domain is set to IOMMU_DOMAIN_NESTED type. Otherwise it is set to IOMMU_DOMAIN_UNMANAGED type."
Reviewed-by: Kevin Tian kevin.tian@intel.com