Re: [GIT PULL][RESEND] hw_breakpoints: Support AMD range breakpoints

Frederic Weisbecker
2014-12-08T15:50:45Z

On Mon, Dec 08, 2014 at 11:53:33AM +0100, Ingo Molnar wrote:
>
> * Frederic Weisbecker <fweisbec@gmail.com> wrote:
>
> > Ingo,
> >
> > Please pull the perf/core-v3 branch that can be found at:
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
> > perf/core-v3
> >
> > HEAD: 36748b9518a2437beffe861b47dff6d12b736b3f
> >
> > It has been acked by Jiri and Oleg.
> > ---
> > Summary:
> >
> > * Extend breakpoint tools and core to support address range through perf
> > event with initial backend support for AMD extended breakpoints.
> > Syntax is:
> >
> > perf record -e mem:addr/len:type
> >
> > For example set write breakpoint from 0x1000 to 0x1200 (0x1000 + 512)
> >
> > perf record -e mem:0x1000/512:w
> >
> > * Clean up a bit breakpoint code validation
> > ---
> >
> >
> > Thanks,
> > Frederic
> > ---
> >
> > Jacob Shin (4):
> > perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN_8
> > perf tools: allow user to specify hardware breakpoint bp_len
> > perf tools: add hardware breakpoint bp_len test cases
> > perf/x86: Remove get_hbp_len and replace with bp_len
> >
> >
> > arch/x86/include/asm/cpufeature.h | 2 ++
> > arch/x86/include/asm/debugreg.h | 5 +++
> > arch/x86/include/asm/hw_breakpoint.h | 1 +
> > arch/x86/include/uapi/asm/msr-index.h | 4 +++
> > arch/x86/kernel/cpu/amd.c | 19 +++++++++++
> > arch/x86/kernel/hw_breakpoint.c | 45 ++++++++++---------------
> > tools/perf/Documentation/perf-record.txt | 7 ++--
> > tools/perf/tests/parse-events.c | 58 ++++++++++++++++++++++++++++++++
> > tools/perf/util/parse-events.c | 21 ++++++------
> > tools/perf/util/parse-events.h | 2 +-
> > tools/perf/util/parse-events.l | 1 +
> > tools/perf/util/parse-events.y | 26 ++++++++++++--
> > 12 files changed, 148 insertions(+), 43 deletions(-)
>
> Pulled into tip:perf/hw_breakpoints, thanks Frederic!
>
> It might not make it into v3.19, we'll see.

No problem, thanks a lot!