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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 A994DC433C1 for ; Fri, 26 Mar 2021 01:27:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7797061A36 for ; Fri, 26 Mar 2021 01:27:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230194AbhCZB1R (ORCPT ); Thu, 25 Mar 2021 21:27:17 -0400 Received: from mga12.intel.com ([192.55.52.136]:51734 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230198AbhCZB1N (ORCPT ); Thu, 25 Mar 2021 21:27:13 -0400 IronPort-SDR: jCocemp5fu5oWda792XYnD7Ltu9E2xIxKj4WW4vttkoSCFwiwsfIiHLOYvU3/e6ub/oTGg1PZf Bgz35p0MvDiw== X-IronPort-AV: E=McAfee;i="6000,8403,9934"; a="170421818" X-IronPort-AV: E=Sophos;i="5.81,278,1610438400"; d="scan'208";a="170421818" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2021 18:27:13 -0700 IronPort-SDR: ZewzK8MIaWAqXyYdwRGYWG0EwPp0vob2+bwqlI9DG2alt+wscrOh7xjGDKeyHgSAg/WxEI25+Y 5CAxRWyWfg9Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,278,1610438400"; d="scan'208";a="443088972" Received: from clx-ap-likexu.sh.intel.com ([10.239.48.108]) by fmsmga002.fm.intel.com with ESMTP; 25 Mar 2021 18:27:09 -0700 From: Like Xu To: Peter Zijlstra , Namhyung Kim Cc: pbonzini@redhat.com, Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Kan Liang , wei.w.wang@intel.com, x86@kernel.org, linux-kernel@vger.kernel.org, Like Xu , Andi Kleen Subject: [PATCH v5 1/5] perf/x86/intel: Fix the comment about guest LBR support on KVM Date: Fri, 26 Mar 2021 09:19:14 +0800 Message-Id: <20210326011918.183685-2-like.xu@linux.intel.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210326011918.183685-1-like.xu@linux.intel.com> References: <20210326011918.183685-1-like.xu@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Starting from v5.12, KVM reports guest LBR and extra_regs support when the host has relevant support. Just delete this part of the comment and fix a typo incidentally. Signed-off-by: Like Xu Reviewed-by: Kan Liang Reviewed-by: Andi Kleen --- arch/x86/events/intel/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 37ce38403cb8..382dd3994463 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -5737,8 +5737,7 @@ __init int intel_pmu_init(void) /* * Access LBR MSR may cause #GP under certain circumstances. - * E.g. KVM doesn't support LBR MSR - * Check all LBT MSR here. + * Check all LBR MSR here. * Disable LBR access if any LBR MSRs can not be accessed. */ if (x86_pmu.lbr_nr && !check_msr(x86_pmu.lbr_tos, 0x3UL)) -- 2.29.2