| 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. |
