linux-kernel - Re: [PATCH] perf/x86: Fix exclusion of BTS and LBR for Goldmont

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Message-ID: <20161206145349.GN26852@two.firstfloor.org>
Date:   Tue, 6 Dec 2016 06:53:49 -0800
From:   Andi Kleen <andi@...stfloor.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>, alexander.shishkin@...el.com,
        kan.liang@...el.com, stable@...r.kernel.org
Subject: Re: [PATCH] perf/x86: Fix exclusion of BTS and LBR for Goldmont

> > -	if (x86_pmu.lbr_pt_coexist)
> > +	if (what == x86_lbr_exclusive_pt && x86_pmu.lbr_pt_coexist)
> >  		return 0;
> 
> This would also allow PT & BTS at the same time, is that a supported
> configuration?

Yes it is on Goldmont.

-Andi