perf, x86, Pentium4: Add RAW events verification
authorCyrill Gorcunov <gorcunov@openvz.org>
Wed, 25 Aug 2010 18:23:34 +0000 (22:23 +0400)
committerIngo Molnar <mingo@elte.hu>
Wed, 1 Sep 2010 06:26:56 +0000 (08:26 +0200)
commitc9cf4a019cff198ee5638323e3b0ee18886467e8
treee3c8e253b84b7efe750ea2e65da93c3df5e78cd8
parent14416c35b6b9975c9593d7ecc8382d1ecaa0b598
perf, x86, Pentium4: Add RAW events verification

Implements verification of

- Bits of ESCR EventMask field (meaningful bits in field are hardware
  predefined and others bits should be set to zero)

- INSTR_COMPLETED event (it is available on predefined cpu model only)

- Thread shared events (they should be guarded by "perf_event_paranoid"
  sysctl due to security reason). The side effect of this action is
  that PERF_COUNT_HW_BUS_CYCLES become a "paranoid" general event.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Tested-by: Lin Ming <ming.m.lin@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20100825182334.GB14874@lenovo>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/include/asm/perf_event_p4.h
arch/x86/kernel/cpu/perf_event_p4.c