linux-kernel - Re: [PATCH] perf, x86: Disallow flags for most Core2/Atom/Nehalem/Westmere events

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Message-ID: <20140924143422.GI28253@tassilo.jf.intel.com>
Date:	Wed, 24 Sep 2014 07:34:22 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	mingo@...nel.org, eranian@...gle.com
Subject: Re: [PATCH] perf, x86: Disallow flags for most
 Core2/Atom/Nehalem/Westmere events

On Wed, Sep 24, 2014 at 09:47:53AM +0200, Peter Zijlstra wrote:
> On Tue, Sep 23, 2014 at 02:54:24PM -0700, Andi Kleen wrote:
> > From: Andi Kleen <ak@...ux.intel.com>
> > 
> > Disallow setting inv/cmask/etc. flags for all PEBS events
> > on these CPUs, except for the UOPS_RETIRED.* events on Nehalem/Westmere,
> > which are needed for cycles:p. This avoids an undefined situation
> > strongly discouraged by the Intle SDM. The PLD_* events were already
> > covered. This follows the earlier changes for Sandy Bridge and alter.
> > 
> > Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> 
> From the compile before sending dept:

Sorry, I only sent one patch, instead of all three. Will resend.

-Andi
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