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| author | Stephane Eranian <eranian@google.com> | 2014-09-24 13:48:37 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-11-16 11:41:57 +0100 |
| commit | 60e2364e60e86e81bc6377f49779779e6120977f (patch) | |
| tree | 669f675c67744cbdd61291f2ec3d03cbb51288d3 /Documentation/IPMI.txt | |
| parent | perf/x86/intel: Disallow flags for most Core2/Atom/Nehalem/Westmere events (diff) | |
| download | linux-60e2364e60e86e81bc6377f49779779e6120977f.tar.xz linux-60e2364e60e86e81bc6377f49779779e6120977f.zip | |
perf: Add ability to sample machine state on interrupt
Enable capture of interrupted machine state for each sample.
Registers to sample are passed per event in the sample_regs_intr bitmask.
To sample interrupt machine state, the PERF_SAMPLE_INTR_REGS must be passed in
sample_type.
The list of available registers is arch dependent and provided by asm/perf_regs.h
Registers are laid out as u64 in the order of the bit order of sample_intr_regs.
This patch also adds a new ABI version PERF_ATTR_SIZE_VER4 because we extend
the perf_event_attr struct with a new u64 field.
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: cebbert.lkml@gmail.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/1411559322-16548-2-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/IPMI.txt')
0 files changed, 0 insertions, 0 deletions