From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.codeaurora.org by pdx-caf-mail.web.codeaurora.org (Dovecot) with LMTP id 6f17Da+UGluhBwAAmS7hNA ; Fri, 08 Jun 2018 14:37:49 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id A61CE607A4; Fri, 8 Jun 2018 14:37:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by smtp.codeaurora.org (Postfix) with ESMTP id 2DAD1606FA; Fri, 8 Jun 2018 14:37:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2DAD1606FA Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752667AbeFHOhp convert rfc822-to-8bit (ORCPT + 25 others); Fri, 8 Jun 2018 10:37:45 -0400 Received: from mga01.intel.com ([192.55.52.88]:4761 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751140AbeFHOho (ORCPT ); Fri, 8 Jun 2018 10:37:44 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Jun 2018 07:37:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,490,1520924400"; d="scan'208";a="235810298" Received: from fmsmsx104.amr.corp.intel.com ([10.18.124.202]) by fmsmga006.fm.intel.com with ESMTP; 08 Jun 2018 07:37:43 -0700 Received: from fmsmsx112.amr.corp.intel.com (10.18.116.6) by fmsmsx104.amr.corp.intel.com (10.18.124.202) with Microsoft SMTP Server (TLS) id 14.3.319.2; Fri, 8 Jun 2018 07:37:43 -0700 Received: from shsmsx104.ccr.corp.intel.com (10.239.4.70) by FMSMSX112.amr.corp.intel.com (10.18.116.6) with Microsoft SMTP Server (TLS) id 14.3.319.2; Fri, 8 Jun 2018 07:37:42 -0700 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.82]) by SHSMSX104.ccr.corp.intel.com ([169.254.5.87]) with mapi id 14.03.0319.002; Fri, 8 Jun 2018 22:37:41 +0800 From: "Kang, Luwei" To: Peter Zijlstra , Alexander Shishkin CC: "kvm@vger.kernel.org" , "tglx@linutronix.de" , "mingo@redhat.com" , "hpa@zytor.com" , "x86@kernel.org" , "chao.p.peng@linux.intel.com" , "thomas.lendacky@amd.com" , "bp@suse.de" , "Liang, Kan" , "Janakarajan.Natarajan@amd.com" , "dwmw@amazon.co.uk" , "linux-kernel@vger.kernel.org" , "mathieu.poirier@linaro.org" , "kstewart@linuxfoundation.org" , "gregkh@linuxfoundation.org" , "pbonzini@redhat.com" , "rkrcmar@redhat.com" , "david@redhat.com" , "bsd@redhat.com" , "yu.c.zhang@linux.intel.com" , "joro@8bytes.org" Subject: RE: [PATCH v9 04/12] perf/x86/intel/pt: add new capability for Intel PT Thread-Topic: [PATCH v9 04/12] perf/x86/intel/pt: add new capability for Intel PT Thread-Index: AQHT8Xi9oYPMthILhkSzx/04cBEj8qRUYT6AgAAC2oCAAiTusA== Date: Fri, 8 Jun 2018 14:37:41 +0000 Message-ID: <82D7661F83C1A047AF7DC287873BF1E167FF0091@SHSMSX101.ccr.corp.intel.com> References: <1526964735-16566-1-git-send-email-luwei.kang@intel.com> <1526964735-16566-5-git-send-email-luwei.kang@intel.com> <20180607134051.rwu5pqtz45cgq7ve@um.fi.intel.com> <20180607135103.GN12198@hirez.programming.kicks-ass.net> In-Reply-To: <20180607135103.GN12198@hirez.programming.kicks-ass.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > On Tue, May 22, 2018 at 12:52:07PM +0800, Luwei Kang wrote: > > > CPUID(EAX=14H,ECX=0):EBX[bit 3] = 1 indicates support of output to > > > Trace Transport subsystem. > > > MSR IA32_RTIT_CTL.FabricEn[bit 6] is reserved if CPUID.(EAX=14H, > > > ECX=0):ECX[bit 3] = 0. > > > > This should instead say: > > > > This adds support for "output to Trace Transport subsystem" capability > > of Intel PT, as documented in IA SDM Chapter 36.x.y.z. It means that > > PT can output its trace to an MMIO address range rather than system > > memory buffer. > > The $subject also needs attention. A little don't understand. What is "$subject" mean? Thanks, Luwei Kang From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kang, Luwei" Subject: RE: [PATCH v9 04/12] perf/x86/intel/pt: add new capability for Intel PT Date: Fri, 8 Jun 2018 14:37:41 +0000 Message-ID: <82D7661F83C1A047AF7DC287873BF1E167FF0091@SHSMSX101.ccr.corp.intel.com> References: <1526964735-16566-1-git-send-email-luwei.kang@intel.com> <1526964735-16566-5-git-send-email-luwei.kang@intel.com> <20180607134051.rwu5pqtz45cgq7ve@um.fi.intel.com> <20180607135103.GN12198@hirez.programming.kicks-ass.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Cc: "kvm@vger.kernel.org" , "tglx@linutronix.de" , "mingo@redhat.com" , "hpa@zytor.com" , "x86@kernel.org" , "chao.p.peng@linux.intel.com" , "thomas.lendacky@amd.com" , "bp@suse.de" , "Liang, Kan" , "Janakarajan.Natarajan@amd.com" , "dwmw@amazon.co.uk" , "linux-kernel@vger.kernel.org" , "mathieu.poirier@linaro.org" , "kstewart@linuxfoundation.org" , "gregkh@linuxfoundation.org" , "pbonzini@redhat.com" , "rkrcmar@redhat.c To: Peter Zijlstra , Alexander Shishkin Return-path: In-Reply-To: <20180607135103.GN12198@hirez.programming.kicks-ass.net> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org > > On Tue, May 22, 2018 at 12:52:07PM +0800, Luwei Kang wrote: > > > CPUID(EAX=14H,ECX=0):EBX[bit 3] = 1 indicates support of output to > > > Trace Transport subsystem. > > > MSR IA32_RTIT_CTL.FabricEn[bit 6] is reserved if CPUID.(EAX=14H, > > > ECX=0):ECX[bit 3] = 0. > > > > This should instead say: > > > > This adds support for "output to Trace Transport subsystem" capability > > of Intel PT, as documented in IA SDM Chapter 36.x.y.z. It means that > > PT can output its trace to an MMIO address range rather than system > > memory buffer. > > The $subject also needs attention. A little don't understand. What is "$subject" mean? Thanks, Luwei Kang