From: Thomas Gleixner <tglx@linutronix.de>
To: Borislav Petkov <bp@alien8.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org, vince@deater.net,
eranian@google.com, Arnaldo Carvalho de Melo <acme@infradead.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>
Subject: Re: [PATCH v1 2/5] perf/x86/intel/pt: IP filtering register/cpuid bits
Date: Fri, 22 Apr 2016 09:58:31 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.11.1604220954260.3941@nanos> (raw)
In-Reply-To: <20160421203752.GL28821@pd.tnic>
On Thu, 21 Apr 2016, Borislav Petkov wrote:
> On Thu, Apr 21, 2016 at 08:55:38PM +0200, Thomas Gleixner wrote:
> > I have to disagree here. The MSRs itself can really go into msr-index.h while
> > the bit definitions might go elsewhere. What's wrong with having all MSRs at a
> > central place?
>
> Same reason as for pci_ids.h - to contain only MSRs which are used in
> multiple compilation units.
That's really not the same thing. pci ids are issued by a gazillion of vendors
for a bazillion of different devices. There is no consistent view for them.
MSRs on the other hand are x86 specific registers nicely defined in the
SDM/APM and having at least the MSR defines in a single header makes a lot of
sense.
Thanks,
tglx
next prev parent reply other threads:[~2016-04-22 8:00 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-21 15:16 [PATCH v1 0/5] perf: Introduce address range filtering Alexander Shishkin
2016-04-21 15:16 ` [PATCH v1 1/5] perf: Move set_filter() from behind EVENT_TRACING Alexander Shishkin
2016-04-21 15:17 ` [PATCH v1 2/5] perf/x86/intel/pt: IP filtering register/cpuid bits Alexander Shishkin
2016-04-21 17:48 ` Borislav Petkov
2016-04-21 18:55 ` Thomas Gleixner
2016-04-21 19:17 ` Peter Zijlstra
2016-04-21 20:39 ` Borislav Petkov
2016-04-21 20:37 ` Borislav Petkov
2016-04-22 7:58 ` Thomas Gleixner [this message]
2016-04-22 9:34 ` Borislav Petkov
2016-04-21 15:17 ` [PATCH v1 3/5] perf: Extend perf_event_aux_ctx() to optionally iterate through more events Alexander Shishkin
2016-04-21 15:17 ` [PATCH v1 4/5] perf: Introduce address range filtering Alexander Shishkin
2016-04-22 7:45 ` Peter Zijlstra
2016-04-22 16:19 ` Alexander Shishkin
2016-04-25 12:57 ` Peter Zijlstra
2016-04-25 15:41 ` Alexander Shishkin
2016-04-25 13:10 ` Peter Zijlstra
2016-04-25 13:36 ` Peter Zijlstra
2016-04-25 16:02 ` Alexander Shishkin
2016-04-25 13:19 ` Peter Zijlstra
2016-04-25 16:03 ` Alexander Shishkin
2016-04-25 14:14 ` Peter Zijlstra
2016-04-25 16:07 ` Alexander Shishkin
2016-04-25 14:25 ` Peter Zijlstra
2016-04-25 16:14 ` Alexander Shishkin
2016-04-26 14:35 ` Alexander Shishkin
2016-04-21 15:17 ` [PATCH v1 5/5] perf/x86/intel/pt: Add support for address range filtering in PT Alexander Shishkin
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