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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 DEC8DC43331 for ; Tue, 12 Nov 2019 06:08:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BFF1F206BB for ; Tue, 12 Nov 2019 06:08:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725865AbfKLGIl (ORCPT ); Tue, 12 Nov 2019 01:08:41 -0500 Received: from mga03.intel.com ([134.134.136.65]:18506 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725298AbfKLGIl (ORCPT ); Tue, 12 Nov 2019 01:08:41 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Nov 2019 22:08:39 -0800 X-IronPort-AV: E=Sophos;i="5.68,295,1569308400"; d="scan'208";a="197972475" Received: from likexu-mobl1.ccr.corp.intel.com (HELO [10.239.196.122]) ([10.239.196.122]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 11 Nov 2019 22:08:38 -0800 Subject: Re: [PATCH v4 0/6] KVM: x86/vPMU: Efficiency optimization by reusing last created perf_event To: Paolo Bonzini Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, kvm@vger.kernel.org References: <20191027105243.34339-1-like.xu@linux.intel.com> <20191028164324.GJ4097@hirez.programming.kicks-ass.net> From: Like Xu Organization: Intel OTC Message-ID: Date: Tue, 12 Nov 2019 14:08:36 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <20191028164324.GJ4097@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi Paolo, On 2019/10/29 0:43, Peter Zijlstra wrote: > On Sun, Oct 27, 2019 at 06:52:37PM +0800, Like Xu wrote: >> For perf subsystem, please help review first two patches. > >> Like Xu (6): >> perf/core: Provide a kernel-internal interface to recalibrate event >> period >> perf/core: Provide a kernel-internal interface to pause perf_event > > Acked-by: Peter Zijlstra (Intel) > Would you mind to revisit the following patches for upstream ? > KVM: x86/vPMU: Rename pmu_ops callbacks from msr_idx to rdpmc_ecx > KVM: x86/vPMU: Introduce a new kvm_pmu_ops->msr_idx_to_pmc callback > KVM: x86/vPMU: Reuse perf_event to avoid unnecessary > pmc_reprogram_counter > KVM: x86/vPMU: Add lazy mechanism to release perf_event per vPMC For vPMU, please review two more patches as well: + https://lore.kernel.org/kvm/20191030164418.2957-1-like.xu@linux.intel.com/ (kvm) + https://lore.kernel.org/lkml/20191105140955.22504-1-like.xu@linux.intel.com/ (perf) Thanks, Like Xu