linux-kernel - Re: [PATCH 3/4] perf: Handle guest PEBS events with a fake event

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Message-ID: <20140530162918.GD8876@tassilo.jf.intel.com>
Date:	Fri, 30 May 2014 09:29:18 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.org>, gleb@...nel.org,
	pbonzini@...hat.com, eranian@...gle.com, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] perf: Handle guest PEBS events with a fake event

On Fri, May 30, 2014 at 09:34:39AM +0200, Peter Zijlstra wrote:
> On Thu, May 29, 2014 at 06:12:06PM -0700, Andi Kleen wrote:
> 
> > Note: in very rare cases with exotic events this may lead to spurious PMIs
> > in the guest.
> 
> Qualify that statement so that if someone runs into it we at least know
> it is known/expected.

You cannot actually observe it, so it's not a real problem.
I'll drop the Note.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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