What: /sys/bus/event_source/devices/hv_24x7/format
Date: September 2020
Contact: Linux on PowerPC Developer List <[email protected]>
Description: Read-only. Attribute group to describe the magic bits
that go into perf_event_attr.config for a particular pmu.
(See ABI/testing/sysfs-bus-event_source-devices-format).
Each attribute under this group defines a bit range of the
perf_event_attr.config. All supported attributes are listed
below::
chip = "config:16-31"
core = "config:16-31"
domain = "config:0-3"
lpar = "config:0-15"
offset = "config:32-63"
vcpu = "config:16-31"
For example::
PM_PB_CYC = "domain=1,offset=0x80,chip=?,lpar=0x0"
In this event, '?' after chip specifies that
this value will be provided by user while running this event.
What: /sys/bus/event_source/devices/hv_24x7/interface/catalog
Date: February 2014
Contact: Linux on PowerPC Developer List <[email protected]>
Description:
Provides access to the binary "24x7 catalog" provided by the
hypervisor on POWER7 and 8 systems. This catalog lists events
available 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: Linux on PowerPC Developer List <[email protected]>
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: Linux on PowerPC Developer List <[email protected]>
Description:
Exposes the "version" field of the 24x7 catalog. This is also
extractable from the provided binary "catalog" sysfs entry.
What: /sys/devices/hv_24x7/interface/sockets
Date: May 2020
Contact: Linux on PowerPC Developer List <[email protected]>
Description: read only
This sysfs interface exposes the number of sockets present in the
system.
What: /sys/devices/hv_24x7/interface/chipspersocket
Date: May 2020
Contact: Linux on PowerPC Developer List <[email protected]>
Description: read only
This sysfs interface exposes the number of chips per socket
present in the system.
What: /sys/devices/hv_24x7/interface/coresperchip
Date: May 2020
Contact: Linux on PowerPC Developer List <[email protected]>
Description: read only
This sysfs interface exposes the number of cores per chip
present in the system.
What: /sys/devices/hv_24x7/cpumask
Date: July 2020
Contact: Linux on PowerPC Developer List <[email protected]>
Description: read only
This sysfs file exposes the cpumask which is designated to make
HCALLs to retrieve hv-24x7 pmu event counter data.
What: /sys/bus/event_source/devices/hv_24x7/event_descs/<event-name>
Date: February 2014
Contact: Linux on PowerPC Developer List <[email protected]>
Description:
Provides the description of a particular event as provided by
the firmware. If firmware does not provide a description, no
file will be created.
Note that the event-name lacks the domain suffix appended for
events in the events/ dir.
What: /sys/bus/event_source/devices/hv_24x7/event_long_descs/<event-name>
Date: February 2014
Contact: Linux on PowerPC Developer List <[email protected]>
Description:
Provides the "long" description of a particular event as
provided by the firmware. If firmware does not provide a
description, no file will be created.
Note that the event-name lacks the domain suffix appended for
events in the events/ dir.
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