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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 10DF2C433FF for ; Wed, 31 Jul 2019 13:58:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DEB6F20693 for ; Wed, 31 Jul 2019 13:58:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729771AbfGaN6h (ORCPT ); Wed, 31 Jul 2019 09:58:37 -0400 Received: from mga05.intel.com ([192.55.52.43]:47382 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726115AbfGaN6h (ORCPT ); Wed, 31 Jul 2019 09:58:37 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 Jul 2019 06:58:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,330,1559545200"; d="scan'208";a="177318767" Received: from black.fi.intel.com (HELO black.fi.intel.com.) ([10.237.72.28]) by orsmga006.jf.intel.com with ESMTP; 31 Jul 2019 06:58:34 -0700 From: Alexander Shishkin To: Peter Zijlstra Cc: Arnaldo Carvalho de Melo , Ingo Molnar , linux-kernel@vger.kernel.org, kan.liang@linux.intel.com, Alexander Shishkin Subject: [PATCH v2 0/7] perf, intel: Add support for PEBS output to Intel PT Date: Wed, 31 Jul 2019 16:58:22 +0300 Message-Id: <20190731135829.54435-1-alexander.shishkin@linux.intel.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Peter, Third attempt at the PEBS-via-PT feature. The previous ones were [1], [2]. This one addresses review comments in patches 1/7 and 2/7, the tooling patches are intact, but I'm including them anyway. The PEBS feature: output to Intel PT stream instead of the DS area. It's theoretically useful in virtualized environments, where DS area can't be used. It's also good for those who are interested in instruction trace for context of the PEBS events. As PEBS goes, it can provide LBR context with all the branch-related information that PT doesn't provide at the moment. PEBS records are packetized in the PT stream, so instead of extracting them in the PMI, we leave it to the perf tool, because real time PT decoding is not practical. [1] https://marc.info/?l=linux-kernel&m=155679423430002 [2] https://marc.info/?l=linux-kernel&m=156225605132606 Adrian Hunter (5): perf tools: Add aux_source attribute flag perf tools: Add itrace option 'o' to synthesize aux-source events perf intel-pt: Process options for PEBS event synthesis perf tools: Add aux-source config term perf intel-pt: Add brief documentation for PEBS via Intel PT Alexander Shishkin (2): perf: Allow normal events to be sources of AUX data perf/x86/intel: Support PEBS output to PT arch/x86/events/core.c | 35 +++++++++ arch/x86/events/intel/core.c | 18 +++++ arch/x86/events/intel/ds.c | 51 ++++++++++++- arch/x86/events/intel/pt.c | 5 ++ arch/x86/events/perf_event.h | 17 +++++ arch/x86/include/asm/intel_pt.h | 2 + arch/x86/include/asm/msr-index.h | 4 ++ include/linux/perf_event.h | 14 ++++ include/uapi/linux/perf_event.h | 3 +- kernel/events/core.c | 92 ++++++++++++++++++++++++ tools/include/uapi/linux/perf_event.h | 3 +- tools/perf/Documentation/intel-pt.txt | 15 ++++ tools/perf/Documentation/itrace.txt | 2 + tools/perf/Documentation/perf-record.txt | 2 + tools/perf/arch/x86/util/intel-pt.c | 23 ++++++ tools/perf/util/auxtrace.c | 4 ++ tools/perf/util/auxtrace.h | 3 + tools/perf/util/evsel.c | 4 ++ tools/perf/util/evsel.h | 2 + tools/perf/util/intel-pt.c | 18 +++++ tools/perf/util/parse-events.c | 8 +++ tools/perf/util/parse-events.h | 1 + tools/perf/util/parse-events.l | 1 + 23 files changed, 324 insertions(+), 3 deletions(-) -- 2.20.1