Under that directory are a number of read-only attributes::
+ archtype
+ hub_type
+ hubless
partition_id
coherence_id
uv_type
+ The archtype entry contains the UV architecture type that
+ is used to select arch-dependent addresses and features.
+ It can be set via the OEM_ID in the ACPI MADT table or by
+ UVsystab entry both passed from UV BIOS.
+
+ The hub_type entry is used to select the type of hub which is
+ similar to uv_type but encoded in a binary format. Include
+ the file uv_hub.h to get the definitions.
+
+ The hubless entry basically is present and set only if there
+ is no hub. In this case the hub_type entry is not present.
+
The partition_id entry contains the partition id.
UV systems can be partitioned into multiple physical
machines, which each partition running a unique copy
The uv_type entry contains the hub revision number.
This value can be used to identify the UV system version::
+ "0.*" = Hubless UV ('*' is subtype)
"3.0" = UV2
"5.0" = UV3