What:		/sys/bus/event_source/devices/hv_24x7/interface/catalog
Date:		February 2014
Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
Description:
		Provides access to the binary "24x7 catalog" provided by the
		hypervisor on POWER7 and 8 systems. This catalog lists events
		avaliable from the powerpc "hv_24x7" pmu. Its format is
		documented here:
		https://raw.githubusercontent.com/jmesmon/catalog-24x7/master/hv-24x7-catalog.h

What:		/sys/bus/event_source/devices/hv_24x7/interface/catalog_length
Date:		February 2014
Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
Description:
		A number equal to the length in bytes of the catalog. This is
		also extractable from the provided binary "catalog" sysfs entry.

What:		/sys/bus/event_source/devices/hv_24x7/interface/catalog_version
Date:		February 2014
Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
Description:
		Exposes the "version" field of the 24x7 catalog. This is also
		extractable from the provided binary "catalog" sysfs entry.