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authorCyrill Gorcunov <gorcunov@openvz.org>2010-08-25 22:23:34 +0400
committerIngo Molnar <mingo@elte.hu>2010-09-01 08:26:56 +0200
commitc9cf4a019cff198ee5638323e3b0ee18886467e8 (patch)
treee3c8e253b84b7efe750ea2e65da93c3df5e78cd8 /kernel/trace/ring_buffer.c
parent14416c35b6b9975c9593d7ecc8382d1ecaa0b598 (diff)
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>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
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