diff options
| author | Cody P Schafer | 2014-03-14 06:00:44 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt | 2014-03-23 23:48:33 +0100 |
| commit | ad0a02b834777f2e107bfd2f3fa240cd7335cc59 (patch) | |
| tree | 308f91b2091ff06dc0a19e0a0d405017755cbef1 /Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci | |
| parent | powerpc/perf: Add kconfig option for hypervisor provided counters (diff) | |
| download | kernel-qcow2-linux-ad0a02b834777f2e107bfd2f3fa240cd7335cc59.tar.gz kernel-qcow2-linux-ad0a02b834777f2e107bfd2f3fa240cd7335cc59.tar.xz kernel-qcow2-linux-ad0a02b834777f2e107bfd2f3fa240cd7335cc59.zip | |
powerpc/perf/hv_{gpci, 24x7}: Add documentation of device attributes
gpci and 24x7 expose some device specific attributes. Add some
documentation for them.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci new file mode 100644 index 000000000000..3fa58c23f13b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci @@ -0,0 +1,43 @@ +What: /sys/bus/event_source/devices/hv_gpci/interface/collect_privileged +Date: February 2014 +Contact: Cody P Schafer <cody@linux.vnet.ibm.com> +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: Cody P Schafer <cody@linux.vnet.ibm.com> +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: Cody P Schafer <cody@linux.vnet.ibm.com> +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: Cody P Schafer <cody@linux.vnet.ibm.com> +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: Cody P Schafer <cody@linux.vnet.ibm.com> +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: Cody P Schafer <cody@linux.vnet.ibm.com> +Description: + A number indicating the latest version of the gpci interface + that the kernel is aware of. |