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SubjectRe: [PATCH RESEND 0/5] perf: Add support for hardware breakpoint address masks
On Thu, Jan 10, 2013 at 02:10:54PM -0600, Jacob Shin wrote:
> 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.

I haven't found any spec for that, could you please direct me?

thanks,
jirka

>
> 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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