linux-kernel - Re: [PATCH v02 2/5] perf/x86/intel: fix for MSR_LAST_BRANCH_FROM

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Message-ID: <20160621225400.GD25121@tassilo.jf.intel.com>
Date:	Tue, 21 Jun 2016 15:54:00 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	David Carrillo-Cisneros <davidcc@...gle.com>
Cc:	linux-kernel@...r.kernel.org, "x86@...nel.org" <x86@...nel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Kan Liang <kan.liang@...el.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v02 2/5] perf/x86/intel: fix for MSR_LAST_BRANCH_FROM_x
 bug when no TSX

> This patch introduces it for wrmsrl's done for testing LBR support.
> Future patch in series adds the quirk for context switch, that would
> be required if LBR callstack is to be enabled for ring 0.

Patches are fine for me.

Reviewed-by: Andi Kleen <ak@...ux.intel.com>

-Andi