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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 F02C3C072B5 for ; Fri, 24 May 2019 10:51:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D1E1A217D7 for ; Fri, 24 May 2019 10:51:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390740AbfEXKvT (ORCPT ); Fri, 24 May 2019 06:51:19 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:49230 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2390459AbfEXKvR (ORCPT ); Fri, 24 May 2019 06:51:17 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4OAlOub002112 for ; Fri, 24 May 2019 06:51:16 -0400 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0b-001b2d01.pphosted.com with ESMTP id 2spd17xp0n-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 24 May 2019 06:51:15 -0400 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 24 May 2019 11:51:11 +0100 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x4OApAL849283168 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 24 May 2019 10:51:10 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 50F09A405C; Fri, 24 May 2019 10:51:10 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 40CD3A4054; Fri, 24 May 2019 10:51:09 +0000 (GMT) Received: from localhost.in.ibm.com (unknown [9.124.35.72]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 24 May 2019 10:51:09 +0000 (GMT) From: Anju T Sudhakar To: mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, anju@linux.vnet.ibm.com, maddy@linux.vnet.ibm.com Subject: [PATCH 2/2] tools/perf: Set 'trace_cycles' as defaultevent for perf kvm record in powerpc Date: Fri, 24 May 2019 16:21:07 +0530 X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190524105107.324-1-anju@linux.vnet.ibm.com> References: <20190524105107.324-1-anju@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 19052410-4275-0000-0000-000003381759 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19052410-4276-0000-0000-00003847B6A2 Message-Id: <20190524105107.324-2-anju@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-24_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=3 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905240074 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use 'trace_imc/trace_cycles' as the default event for 'perf kvm record' in powerpc. Signed-off-by: Anju T Sudhakar --- tools/perf/arch/powerpc/util/kvm-stat.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/tools/perf/arch/powerpc/util/kvm-stat.c b/tools/perf/arch/powerpc/util/kvm-stat.c index 66f8fe500945..b552884263df 100644 --- a/tools/perf/arch/powerpc/util/kvm-stat.c +++ b/tools/perf/arch/powerpc/util/kvm-stat.c @@ -177,8 +177,9 @@ int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid __maybe_unused) /* * Incase of powerpc architecture, pmu registers are programmable * by guest kernel. So monitoring guest via host may not provide - * valid samples. It is better to fail the "perf kvm record" - * with default "cycles" event to monitor guest in powerpc. + * valid samples with default 'cycles' event. It is better to use + * 'trace_imc/trace_cycles' event for guest profiling, since it + * can track the guest instruction pointer in the trace-record. * * Function to parse the arguments and return appropriate values. */ @@ -202,8 +203,14 @@ int kvm_add_default_arch_event(int *argc, const char **argv) parse_options(j, tmp, event_options, NULL, 0); if (!event) { - free(tmp); - return -EINVAL; + if (pmu_have_event("trace_imc", "trace_cycles")) { + argv[j++] = strdup("-e"); + argv[j++] = strdup("trace_imc/trace_cycles/"); + *argc += 2; + } else { + free(tmp); + return -EINVAL; + } } free(tmp); -- 2.17.2