What:		/sys/class/iommu/ummu.<x>/ummu_uotr_mpam/uotr_partid
Date:		Oct 2025
KernelVersion:	6.6
Contact:	Jingbin Wu <wujingbin2@huawei.com>
Description:
		The PartID value used by the MPAM function to tag UMMU-initiated
		traffic. Format: %x.

What:		/sys/class/iommu/ummu.<x>/ummu_uotr_mpam/uotr_pmg
Date:		Oct 2025
KernelVersion:	6.6
Contact:	Jingbin Wu <wujingbin2@huawei.com>
Description:
		The PMG value used by the MPAM function to tag UMMU-initiated traffic.
		Format: %x.

What:		/sys/class/iommu/ummu.<x>/ummu_uotr_mpam/uotr_run
Date:		Oct 2025
KernelVersion:	6.6
Contact:	Jingbin Wu <wujingbin2@huawei.com>
Description:
		After setting the uotr_partid and uotr_pmg values, write 1 to uotr_run
		to apply them to the UMMU device. These values tag I/O traffic initiated
		by the UMMU itself.

What:		/sys/class/iommu/ummu.<x>/ummu_uotr_mpam/uotr_mpam_info
Date:		Oct 2025
KernelVersion:	6.6
Contact:	Jingbin Wu <wujingbin2@huawei.com>
Description:
		Retrieve the MPAM configuration last applied to the UMMU device.
