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

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Date:	Mon, 8 Dec 2014 16:50:40 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	xiakaixu <xiakaixu@...wei.com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Jacob Shin <jacob.w.shin@...il.com>
Subject: Re: [GIT PULL][RESEND] hw_breakpoints: Support AMD range breakpoints

On Mon, Dec 08, 2014 at 11:53:33AM +0100, Ingo Molnar wrote:
> 
> * Frederic Weisbecker <fweisbec@...il.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!
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