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 13A14C433FF for ; Tue, 6 Aug 2019 07:28:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E6704218DA for ; Tue, 6 Aug 2019 07:28:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732066AbfHFH25 (ORCPT ); Tue, 6 Aug 2019 03:28:57 -0400 Received: from mga02.intel.com ([134.134.136.20]:31201 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731557AbfHFH25 (ORCPT ); Tue, 6 Aug 2019 03:28:57 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Aug 2019 00:24:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,352,1559545200"; d="scan'208";a="325555334" Received: from black.fi.intel.com (HELO black.fi.intel.com.) ([10.237.72.28]) by orsmga004.jf.intel.com with ESMTP; 06 Aug 2019 00:24:38 -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 v5 0/7] perf, intel: Add support for PEBS output to Intel PT Date: Tue, 6 Aug 2019 10:24:26 +0300 Message-Id: <20190806072433.26820-1-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, Sixth attempt at the PEBS-via-PT feature. The previous ones were [1], [2], [3], [4], [5]. This one addresses the most recent review comments, mainly renaming the new attribute bit and everything related to 'aux_output'. Tooling also changed to use /aux-output/ config term. 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 [3] https://marc.info/?l=linux-kernel&m=156458152126310 [4] https://marc.info/?l=linux-kernel&m=156458348626999 [5] https://marc.info/?l=linux-kernel&m=156498939722450 Adrian Hunter (5): perf tools: Add aux_output attribute flag perf tools: Add itrace option 'o' to synthesize aux-output events perf intel-pt: Process options for PEBS event synthesis perf tools: Add aux-output config term perf intel-pt: Add brief documentation for PEBS via Intel PT Alexander Shishkin (2): perf: Allow normal events to output AUX data perf/x86/intel: Support PEBS output to PT arch/x86/events/core.c | 34 +++++++++ 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 | 93 ++++++++++++++++++++++++ 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