linux/arch/x86/events
Kan Liang 543ac280b3 perf/x86/intel/uncore: Handle invalid event coding for free-running counter
Counting with invalid event coding for free-running counter may cause
OOPs, e.g. uncore_iio_free_running_0/event=1/.

Current code only validate the event with free-running event format,
event=0xff,umask=0xXY. Non-free-running event format never be checked
for the PMU with free-running counters.

Add generic hw_config() to check and reject the invalid event coding
for free-running PMU.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@kernel.org
Cc: eranian@google.com
Fixes: 0f519f0352 ("perf/x86/intel/uncore: Support IIO free-running counters on SKX")
Link: https://lkml.kernel.org/r/1556672028-119221-2-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-17 12:36:17 +02:00
..
amd treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
intel perf/x86/intel/uncore: Handle invalid event coding for free-running counter 2019-06-17 12:36:17 +02:00
core.c perf/x86: Use update attribute groups for default attributes 2019-06-03 11:58:27 +02:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
msr.c perf/x86/msr: Add Icelake support 2019-04-16 12:26:19 +02:00
perf_event.h perf/x86: Use update attribute groups for default attributes 2019-06-03 11:58:27 +02:00