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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC108C43334 for ; Fri, 10 Jun 2022 01:40:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238771AbiFJBkb (ORCPT ); Thu, 9 Jun 2022 21:40:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41800 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230371AbiFJBka (ORCPT ); Thu, 9 Jun 2022 21:40:30 -0400 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ECED1663CF for ; Thu, 9 Jun 2022 18:40:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1654825225; x=1686361225; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=Yw/r7HwN1jVjxWJ69XtmQXEGuwVekvEPs2AWrElAlWI=; b=NP92gcomiuA1vN0Y/L9AYzcDSw7uda4BpKp1jLhh8mCymDsKuInznr+B BiVTZyaqeNGfc3+4Awo+NLLT+wTU9u4k9hKeyWnWstyrWDC/XWqmAr8oU BB7tKgMvSOkWCvrXvtPNn/bIXfRkaKVrrL+wPLu3L1TDz8ELmR79A9qUq LrieZmA37r+wXoZlCuXEQEllRSYLVZYEIPFncWotw5rGXDuYs02pSZnHf 8SFeq/e1NyNaIb2hM0cC+3U/6M4o+jGZnhafpvzJe03AaAgLEEnVFMVCm rg+fwlUS1keAr3DHXP5eu1Go4sLzpg+UVrRGJS6rZYpNb/5aP9Xv0rHgJ w==; X-IronPort-AV: E=McAfee;i="6400,9594,10373"; a="276249811" X-IronPort-AV: E=Sophos;i="5.91,288,1647327600"; d="scan'208";a="276249811" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2022 18:40:25 -0700 X-IronPort-AV: E=Sophos;i="5.91,288,1647327600"; d="scan'208";a="637852184" Received: from yangweij-mobl.ccr.corp.intel.com (HELO [10.255.29.27]) ([10.255.29.27]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2022 18:40:24 -0700 Message-ID: <409d14a2-5357-3640-1603-82aa51455c68@intel.com> Date: Fri, 10 Jun 2022 09:40:10 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [kvm-unit-tests PATCH 2/3] x86: Skip running test when pmu is disabled Content-Language: en-US To: Like Xu Cc: kvm@vger.kernel.org, "Paolo Bonzini - Distinguished Engineer (kernel-recipes.org) (KVM HoF)" References: <20220609083916.36658-1-weijiang.yang@intel.com> <20220609083916.36658-3-weijiang.yang@intel.com> <2bd56b9f-cf27-f4a3-321f-1b1b11172bc0@gmail.com> From: "Yang, Weijiang" In-Reply-To: <2bd56b9f-cf27-f4a3-321f-1b1b11172bc0@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 6/10/2022 7:57 AM, Like Xu wrote: > On 9/6/2022 4:39 pm, Yang Weijiang wrote: >> +    perf_cap = rdmsr(MSR_IA32_PERF_CAPABILITIES); > > Nit, check the PDCM bit before accessing this MSR. Thanks, I'll add the check.