83 lines
3.1 KiB
Plaintext
83 lines
3.1 KiB
Plaintext
What: /sys/bus/event_source/devices/hv_gpci/format
|
|
Date: September 2020
|
|
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
|
|
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::
|
|
|
|
counter_info_version = "config:16-23"
|
|
length = "config:24-31"
|
|
partition_id = "config:32-63"
|
|
request = "config:0-31"
|
|
sibling_part_id = "config:32-63"
|
|
hw_chip_id = "config:32-63"
|
|
offset = "config:32-63"
|
|
phys_processor_idx = "config:32-63"
|
|
secondary_index = "config:0-15"
|
|
starting_index = "config:32-63"
|
|
|
|
For example::
|
|
|
|
processor_core_utilization_instructions_completed = "request=0x94,
|
|
phys_processor_idx=?,counter_info_version=0x8,
|
|
length=8,offset=0x18"
|
|
|
|
In this event, '?' after phys_processor_idx specifies this value
|
|
this value will be provided by user while running this event.
|
|
|
|
What: /sys/bus/event_source/devices/hv_gpci/interface/collect_privileged
|
|
Date: February 2014
|
|
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
|
|
Description:
|
|
'0' if the hypervisor is configured to forbid access to event
|
|
counters being accumulated by other guests and to physical
|
|
domain event counters.
|
|
|
|
'1' if that access is allowed.
|
|
|
|
What: /sys/bus/event_source/devices/hv_gpci/interface/ga
|
|
Date: February 2014
|
|
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
|
|
Description:
|
|
0 or 1. Indicates whether we have access to "GA" events (listed
|
|
in arch/powerpc/perf/hv-gpci.h).
|
|
|
|
What: /sys/bus/event_source/devices/hv_gpci/interface/expanded
|
|
Date: February 2014
|
|
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
|
|
Description:
|
|
0 or 1. Indicates whether we have access to "EXPANDED" events (listed
|
|
in arch/powerpc/perf/hv-gpci.h).
|
|
|
|
What: /sys/bus/event_source/devices/hv_gpci/interface/lab
|
|
Date: February 2014
|
|
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
|
|
Description:
|
|
0 or 1. Indicates whether we have access to "LAB" events (listed
|
|
in arch/powerpc/perf/hv-gpci.h).
|
|
|
|
What: /sys/bus/event_source/devices/hv_gpci/interface/version
|
|
Date: February 2014
|
|
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
|
|
Description:
|
|
A number indicating the version of the gpci interface that the
|
|
hypervisor reports supporting.
|
|
|
|
What: /sys/bus/event_source/devices/hv_gpci/interface/kernel_version
|
|
Date: February 2014
|
|
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
|
|
Description:
|
|
A number indicating the latest version of the gpci interface
|
|
that the kernel is aware of.
|
|
|
|
What: /sys/devices/hv_gpci/cpumask
|
|
Date: October 2020
|
|
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
|
|
Description: read only
|
|
This sysfs file exposes the cpumask which is designated to make
|
|
HCALLs to retrieve hv-gpci pmu event counter data.
|