From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934056AbaE3Q3V (ORCPT ); Fri, 30 May 2014 12:29:21 -0400 Received: from mga09.intel.com ([134.134.136.24]:24431 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933202AbaE3Q3T (ORCPT ); Fri, 30 May 2014 12:29:19 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.98,942,1392192000"; d="scan'208";a="520310677" Date: Fri, 30 May 2014 09:29:18 -0700 From: Andi Kleen To: Peter Zijlstra Cc: Andi Kleen , gleb@kernel.org, pbonzini@redhat.com, eranian@google.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/4] perf: Handle guest PEBS events with a fake event Message-ID: <20140530162918.GD8876@tassilo.jf.intel.com> References: <1401412327-14810-1-git-send-email-andi@firstfloor.org> <1401412327-14810-4-git-send-email-andi@firstfloor.org> <20140530073439.GB20167@laptop.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140530073439.GB20167@laptop.programming.kicks-ass.net> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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@linux.intel.com -- Speaking for myself only