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From: Borislav Petkov <bp@alien8.de>
To: Maria Dimakopoulou <maria.n.dimakopoulou@gmail.com>
Cc: Stephane Eranian <eranian@google.com>, x86-ml <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	"mingo@elte.hu" <mingo@elte.hu>,
	"ak@linux.intel.com" <ak@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>,
	kan.liang@intel.com
Subject: Re: [PATCH v3 13/13] perf/x86: add syfs entry to disable HT bug workaround
Date: Tue, 18 Nov 2014 16:12:31 +0100	[thread overview]
Message-ID: <20141118151231.GA5238@pd.tnic> (raw)
In-Reply-To: <CAHzUATiZPYNt5nQ82TmCGH9mz0-Y-T6UFdo+0xHpYNcMFBnfZw@mail.gmail.com>

On Tue, Nov 18, 2014 at 05:01:28PM +0200, Maria Dimakopoulou wrote:
> OK. We can call it perf_pmu_ht_bug_workaround to make this more
> explicit.

I think you should consider adding a more generic scheme from the
get-go, as Thomas suggested instead of a specific file. We need this
hammered out properly before it gets exposed as it is user-visible and
once it is out there, there's no changing.

And this is not the only CPU bug we'll be implementing workaround for in
the future so a generic scheme is the right way to go IMO.

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--

      reply	other threads:[~2014-11-18 15:12 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-17 19:06 [PATCH v3 00/13] perf/x86: implement HT counter corruption workaround Stephane Eranian
2014-11-17 19:06 ` [PATCH v3 01/13] perf,x86: rename er_flags to flags Stephane Eranian
2015-04-02 18:41   ` [tip:perf/core] perf/x86: Rename x86_pmu::er_flags to 'flags' tip-bot for Stephane Eranian
2014-11-17 19:06 ` [PATCH v3 02/13] perf/x86: vectorize cpuc->kfree_on_online Stephane Eranian
2015-04-02 18:41   ` [tip:perf/core] perf/x86: Vectorize cpuc->kfree_on_online tip-bot for Stephane Eranian
2014-11-17 19:06 ` [PATCH v3 03/13] perf/x86: add 3 new scheduling callbacks Stephane Eranian
2015-04-02 18:42   ` [tip:perf/core] perf/x86: Add " tip-bot for Maria Dimakopoulou
2014-11-17 19:06 ` [PATCH v3 04/13] perf/x86: add index param to get_event_constraint() callback Stephane Eranian
2015-04-02 18:42   ` [tip:perf/core] perf/x86: Add 'index' " tip-bot for Stephane Eranian
2014-11-17 19:06 ` [PATCH v3 05/13] perf/x86: add cross-HT counter exclusion infrastructure Stephane Eranian
2015-04-02 18:42   ` [tip:perf/core] perf/x86/intel: Add " tip-bot for Maria Dimakopoulou
2014-11-17 19:06 ` [PATCH v3 06/13] perf/x86: implement cross-HT corruption bug workaround Stephane Eranian
2015-04-02 18:43   ` [tip:perf/core] perf/x86/intel: Implement " tip-bot for Maria Dimakopoulou
2014-11-17 19:06 ` [PATCH v3 07/13] perf/x86: enforce HT bug workaround for SNB/IVB/HSW Stephane Eranian
2015-04-02 18:43   ` [tip:perf/core] perf/x86/intel: Enforce HT bug workaround for SNB /IVB/HSW tip-bot for Maria Dimakopoulou
2014-11-17 19:07 ` [PATCH v3 08/13] perf/x86: enforce HT bug workaround with PEBS for SNB/IVB/HSW Stephane Eranian
2015-04-02 18:43   ` [tip:perf/core] perf/x86/intel: Enforce " tip-bot for Maria Dimakopoulou
2014-11-17 19:07 ` [PATCH v3 09/13] perf/x86: fix intel_get_event_constraints() for dynamic constraints Stephane Eranian
2015-04-02 18:43   ` [tip:perf/core] perf/x86/intel: Fix " tip-bot for Stephane Eranian
2014-11-17 19:07 ` [PATCH v3 10/13] perf/x86: limit to half counters to avoid exclusive mode starvation Stephane Eranian
2015-04-02 18:44   ` [tip:perf/core] perf/x86/intel: Limit to half counters when the HT workaround is enabled, " tip-bot for Stephane Eranian
2014-11-17 19:07 ` [PATCH v3 11/13] watchdog: add watchdog enable/disable all functions Stephane Eranian
2015-04-02 18:44   ` [tip:perf/core] watchdog: Add watchdog enable/ disable " tip-bot for Stephane Eranian
2014-11-17 19:07 ` [PATCH v3 12/13] perf/x86: make HT bug workaround conditioned on HT enabled Stephane Eranian
2015-04-02 18:44   ` [tip:perf/core] perf/x86/intel: Make the HT bug workaround conditional " tip-bot for Stephane Eranian
2014-11-17 19:07 ` [PATCH v3 13/13] perf/x86: add syfs entry to disable HT bug workaround Stephane Eranian
2014-11-17 23:02   ` Borislav Petkov
2014-11-17 23:38     ` Thomas Gleixner
2014-11-17 23:58       ` Borislav Petkov
2014-11-18  0:31         ` Thomas Gleixner
2014-11-18 15:29           ` Stephane Eranian
2014-11-18 15:43             ` Borislav Petkov
2014-11-18 16:37               ` Stephane Eranian
2014-11-18 16:42                 ` Borislav Petkov
2014-11-18 15:01     ` Maria Dimakopoulou
2014-11-18 15:12       ` Borislav Petkov [this message]

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