linux-kernel - Re: [PATCH 0/5] perf: Add support for hardware breakpoint address masks

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Message-ID: <20130418163832.GA14253@jshin-Toonie>
Date:	Thu, 18 Apr 2013 11:38:32 -0500
From:	Jacob Shin <jacob.shin@....com>
To:	Ingo Molnar <mingo@...nel.org>
CC:	Fr??d??ric Weisbecker <fweisbec@...il.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>, <x86@...nel.org>,
	Stephane Eranian <eranian@...gle.com>,
	Jiri Olsa <jolsa@...hat.com>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/5] perf: Add support for hardware breakpoint address
 masks

On Tue, Apr 16, 2013 at 11:36:20AM +0200, Ingo Molnar wrote:
> 
> * Jacob Shin <jacob.shin@....com> wrote:
> 
> > On Tue, Apr 09, 2013 at 12:21:48PM -0500, 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.
> > > 
> > > 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)
> > 
> > Ping .. Ingo?
> 
> breakpoint patches usually come to me through (or with the acks of) Frederic 
> and/or Oleg.
> 
> Frederic, Oleg, mind having a look?

Hi Frederic, Oleg. Could one of you take a look over this patchset
when you get the chance? Thank you in advance for taking the time!

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