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