Message-ID: <4DD3AF88.2040704@redhat.com>
Date: Wed, 18 May 2011 14:37:44 +0300
From: Avi Kivity <avi@redhat.com>
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To: Peter Zijlstra <a.p.zijlstra@chello.nl>
CC: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org,
        kvm@vger.kernel.org,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Subject: Re: [PATCH v1 5/5] KVM: Expose a version 1 architectural PMU to guests
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On 05/18/2011 02:32 PM, Peter Zijlstra wrote:
> On Wed, 2011-05-18 at 13:07 +0200, Ingo Molnar wrote:
> >
> >  It does through raw events - which are indeed model specific.
>
> Which is exactly what is needed anyway, he gets a raw msr value.
>
> The only thing that is not exposed is the ANY bit, but since KVM doesn't
> expose HT anyway that doesn't matter.

If I were to use raw events, I'd need to program AMD and Intel hosts 
separately.  As it is, I just use the generic counters and the perf 
backend does its thing.

(note, INV and CMASK are hardly important, I think we can get away 
without implementing them)

-- 
error compiling committee.c: too many arguments to function

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