Messages in this thread | | | From | Jacob Shin <> | Subject | [PATCH RESEND 0/5] perf: Add support for hardware breakpoint address masks | Date | Thu, 10 Jan 2013 14:10:54 -0600 |
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The following patchset adds address masks to existing perf hardware breakpoint mechanism to allow trapping on an address range (currently only single address) on supported architectures.
perf uapi is updated, x86 AMD implementation (for AMD Family 16h and beyond) is provided, and perf tool has been extended to do:
$ perf stat -e mem:0x1000:w:0xf a.out ^^^ "don't care" bit mask
which will count writes to [0x1000 ~ 0x1010)
Jacob Shin (2): perf: Add hardware breakpoint address mask perf, x86: AMD implementation for hardware breakpoint address mask
Suravee Suthikulpanit (3): perf tools: Add breakpoint address mask to the mem event parser perf tools: Add breakpoint address mask syntax to perf list and documentation perf tools: Add breakpoint address mask test case to tests/parse-events
arch/Kconfig | 4 ++++ arch/x86/Kconfig | 1 + arch/x86/include/asm/cpufeature.h | 2 ++ arch/x86/include/asm/hw_breakpoint.h | 6 ++++++ arch/x86/include/asm/processor.h | 7 ++++++ arch/x86/include/uapi/asm/msr-index.h | 6 ++++++ arch/x86/kernel/cpu/amd.c | 21 ++++++++++++++++++ arch/x86/kernel/hw_breakpoint.c | 5 +++++ include/linux/hw_breakpoint.h | 6 ++++++ include/uapi/linux/perf_event.h | 5 ++++- kernel/events/hw_breakpoint.c | 3 +++ tools/perf/Documentation/perf-record.txt | 14 ++++++++---- tools/perf/tests/parse-events.c | 34 ++++++++++++++++++++++++++++++ tools/perf/util/parse-events.c | 5 +++-- tools/perf/util/parse-events.h | 2 +- tools/perf/util/parse-events.y | 14 ++++++++++-- 16 files changed, 125 insertions(+), 10 deletions(-)
-- 1.7.9.5
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