From: Tvrtko Ursulin <tvrtko.ursu...@intel.com> Explain behaviour of the new control knob along side the existing perf event documentation.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursu...@intel.com> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: "H. Peter Anvin" <h...@zytor.com> Cc: Arnaldo Carvalho de Melo <a...@kernel.org> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> Cc: Jiri Olsa <jo...@redhat.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Madhavan Srinivasan <ma...@linux.vnet.ibm.com> Cc: Andi Kleen <a...@linux.intel.com> Cc: Alexey Budankov <alexey.budan...@linux.intel.com> Cc: linux-kernel@vger.kernel.org Cc: x...@kernel.org --- .../testing/sysfs-bus-event_source-devices-events | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events index 505f080d20a1..b3096ae9be6f 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events @@ -92,3 +92,17 @@ Description: Perf event scaling factors This is provided to avoid performing floating point arithmetic in the kernel. + +What: /sys/bus/event_source/devices/<pmu>/perf_event_paranoid +Date: 2018/06/26 +Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> +Description: Per PMU access control file + + This is the per PMU version of the perf_event_paranoid sysctl + which allows controlling the access control level for each + individual PMU. + + Writes to the sysctl will propagate to all PMU providers. + + For explanation of supported values please consult the sysctl + documentation. -- 2.17.1