linux-kernel - Re: [RFC PATCH 2/3 v3] perf: Implement Nehalem uncore pmu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 9 Dec 2010 21:27:26 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Lin Ming <ming.m.lin@...el.com>, Andi Kleen <andi@...stfloor.org>,
	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Arjan van de Ven <arjan@...radead.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 2/3 v3] perf: Implement Nehalem uncore pmu

On Thu, Dec 9, 2010 at 9:19 PM, Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote:
> On Thu, 2010-12-09 at 21:15 +0100, Stephane Eranian wrote:
>> On Thu, Dec 9, 2010 at 8:21 PM, Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote:
>> > On Thu, 2010-12-02 at 13:20 +0800, Lin Ming wrote:
>> >> +       /* Check CPUID signatures: 06_1AH, 06_1EH, 06_1FH */
>> >> +       family = boot_cpu_data.x86;
>> >> +       model = boot_cpu_data.x86_model;
>> >> +       if (family != 6 || (model != 0x1A && model != 0x1E && model != 0x1F))
>> >> +               return;
>> >
>> > So that's 26, 30 and 31? Curiously
>> > arch/x86/kernel/cpu/perf_event_intel.c does have 31.
>
> That was clearly meant to say: doesn't.. Does Intel have an exhaustive
> model list somewhere?
>
>> It is also missing model 44 (0x2c).
>
Uncore logic in the same on NHM and WSM.
Events may be different but I have not see a
public document that describes that.

> Right.. but if the westmere uncore is the same, then its also missing
> 37.
>
yes, 37 is also missing.

> The -EX chips have a different uncore, right?
>
True. I don't know if the programming is completely different
but it would not surprise me.
Documentation is at:
http://www.intel.com/assets/en_US/pdf/designguide/323535.pdf
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/