From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01069C43441 for ; Mon, 26 Nov 2018 18:22:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C434A20855 for ; Mon, 26 Nov 2018 18:22:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C434A20855 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726735AbeK0FRs (ORCPT ); Tue, 27 Nov 2018 00:17:48 -0500 Received: from foss.arm.com ([217.140.101.70]:44442 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725723AbeK0FRs (ORCPT ); Tue, 27 Nov 2018 00:17:48 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A55731A25; Mon, 26 Nov 2018 10:22:52 -0800 (PST) Received: from [10.1.196.93] (en101.cambridge.arm.com [10.1.196.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id AA3FD3F5AF; Mon, 26 Nov 2018 10:22:48 -0800 (PST) Subject: Re: [PATCH v2 01/20] perf/doc: update design.txt for exclude_{host|guest} flags To: Andrew Murray , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Shawn Guo , Sascha Hauer , Will Deacon , Mark Rutland , Benjamin Herrenschmidt , Thomas Gleixner , Borislav Petkov , x86@kernel.org, Ralf Baechle , Paul Burton , James Hogan , Martin Schwidefsky , Heiko Carstens , "David S . Miller" , sparclinux@vger.kernel.org, Michael Ellerman Cc: linux-s390@vger.kernel.org, linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org References: <1543230756-15319-1-git-send-email-andrew.murray@arm.com> <1543230756-15319-2-git-send-email-andrew.murray@arm.com> From: Suzuki K Poulose Message-ID: Date: Mon, 26 Nov 2018 18:22:47 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <1543230756-15319-2-git-send-email-andrew.murray@arm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrew, On 26/11/2018 11:12, Andrew Murray wrote: > Update design.txt to reflect the presence of the exclude_host > and exclude_guest perf flags. > > Signed-off-by: Andrew Murray Thanks a lot for adding this ! > --- > tools/perf/design.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/tools/perf/design.txt b/tools/perf/design.txt > index a28dca2..5b2b23b 100644 > --- a/tools/perf/design.txt > +++ b/tools/perf/design.txt > @@ -222,6 +222,10 @@ The 'exclude_user', 'exclude_kernel' and 'exclude_hv' bits provide a > way to request that counting of events be restricted to times when the > CPU is in user, kernel and/or hypervisor mode. > > +Furthermore the 'exclude_host' and 'exclude_guest' bits provide a way > +to request counting of events restricted to guest and host contexts when > +using KVM virtualisation. minor nit: could we generalise this to : "using Linux as the hypervisor". Otherwise, looks good to me. Cheers Suzuki From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suzuki K Poulose Date: Mon, 26 Nov 2018 18:22:47 +0000 Subject: Re: [PATCH v2 01/20] perf/doc: update design.txt for exclude_{host|guest} flags Message-Id: List-Id: References: <1543230756-15319-1-git-send-email-andrew.murray@arm.com> <1543230756-15319-2-git-send-email-andrew.murray@arm.com> In-Reply-To: <1543230756-15319-2-git-send-email-andrew.murray@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org Hi Andrew, On 26/11/2018 11:12, Andrew Murray wrote: > Update design.txt to reflect the presence of the exclude_host > and exclude_guest perf flags. > > Signed-off-by: Andrew Murray Thanks a lot for adding this ! > --- > tools/perf/design.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/tools/perf/design.txt b/tools/perf/design.txt > index a28dca2..5b2b23b 100644 > --- a/tools/perf/design.txt > +++ b/tools/perf/design.txt > @@ -222,6 +222,10 @@ The 'exclude_user', 'exclude_kernel' and 'exclude_hv' bits provide a > way to request that counting of events be restricted to times when the > CPU is in user, kernel and/or hypervisor mode. > > +Furthermore the 'exclude_host' and 'exclude_guest' bits provide a way > +to request counting of events restricted to guest and host contexts when > +using KVM virtualisation. minor nit: could we generalise this to : "using Linux as the hypervisor". Otherwise, looks good to me. Cheers Suzuki From mboxrd@z Thu Jan 1 00:00:00 1970 From: suzuki.poulose@arm.com (Suzuki K Poulose) Date: Mon, 26 Nov 2018 18:22:47 +0000 Subject: [PATCH v2 01/20] perf/doc: update design.txt for exclude_{host|guest} flags In-Reply-To: <1543230756-15319-2-git-send-email-andrew.murray@arm.com> References: <1543230756-15319-1-git-send-email-andrew.murray@arm.com> <1543230756-15319-2-git-send-email-andrew.murray@arm.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Andrew, On 26/11/2018 11:12, Andrew Murray wrote: > Update design.txt to reflect the presence of the exclude_host > and exclude_guest perf flags. > > Signed-off-by: Andrew Murray Thanks a lot for adding this ! > --- > tools/perf/design.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/tools/perf/design.txt b/tools/perf/design.txt > index a28dca2..5b2b23b 100644 > --- a/tools/perf/design.txt > +++ b/tools/perf/design.txt > @@ -222,6 +222,10 @@ The 'exclude_user', 'exclude_kernel' and 'exclude_hv' bits provide a > way to request that counting of events be restricted to times when the > CPU is in user, kernel and/or hypervisor mode. > > +Furthermore the 'exclude_host' and 'exclude_guest' bits provide a way > +to request counting of events restricted to guest and host contexts when > +using KVM virtualisation. minor nit: could we generalise this to : "using Linux as the hypervisor". Otherwise, looks good to me. Cheers Suzuki