19 May
2023
19 May
'23
8:47 a.m.
From: Liu, Yi L yi.l.liu@intel.com Sent: Thursday, May 11, 2023 10:39 PM @@ -229,6 +238,15 @@ struct iommu_iotlb_gather {
after use. Return the data buffer if success, or ERR_PTR onfailure.- @domain_alloc: allocate iommu domain
- @domain_alloc_user: allocate user iommu domain
- @domain_alloc_user_data_len: return the required length of the user
data
to allocate a specific type user iommu domain.
@hwpt_type is defined as enum iommu_hwpt_type
in include/uapi/linux/iommufd.h. The returned
length is the corresponding sizeof driver data
structures in include/uapi/linux/iommufd.h.
-EOPNOTSUPP would be returned if the input
@hwpt_type is not supported by the driver.
Can this be merged with earlier @hw_info callback? That will already report a list of supported hwpt types. is there a problem to further describe the data length for each type in that interface?