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,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 DD211C2D0EF for ; Fri, 17 Apr 2020 14:57:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BD6592076A for ; Fri, 17 Apr 2020 14:57:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728179AbgDQO5v (ORCPT ); Fri, 17 Apr 2020 10:57:51 -0400 Received: from mga02.intel.com ([134.134.136.20]:20424 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726707AbgDQO5v (ORCPT ); Fri, 17 Apr 2020 10:57:51 -0400 IronPort-SDR: 114KHlgUnNvnaR9xQwM/Qp1w1gxM3/Dah0YdRXRem6L6alNVrhEUuoCTAeWNMsIh1tnO4+yeXA Bc8zf3FeHGRQ== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2020 07:57:50 -0700 IronPort-SDR: z5eMw9P+NeZr6KBO3Z9aNE7tBa6UpZMRvO9tAqYaMtvxlqRwtoOVCUdKA9lKsxv8haQGab/nnS o0rKVzn+a16g== X-IronPort-AV: E=Sophos;i="5.72,395,1580803200"; d="scan'208";a="428250666" Received: from rchatre-mobl.amr.corp.intel.com (HELO [10.251.16.52]) ([10.251.16.52]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2020 07:57:50 -0700 Subject: Re: [PATCH v3] x86/resctrl: Preserve CDP enable over cpuhp To: Borislav Petkov , James Morse Cc: x86@kernel.org, linux-kernel@vger.kernel.org, Thomas Gleixner , Fenghua Yu , Ingo Molnar , "H . Peter Anvin" , Babu Moger References: <20200221162105.154163-1-james.morse@arm.com> <8d84868f-4045-8d69-ed45-d0f0629ba25c@intel.com> <20200417141841.GD7322@zn.tnic> From: Reinette Chatre Message-ID: Date: Fri, 17 Apr 2020 07:57:47 -0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200417141841.GD7322@zn.tnic> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Borislav and James, On 4/17/2020 7:18 AM, Borislav Petkov wrote: > On Wed, Apr 15, 2020 at 08:57:34AM -0700, Reinette Chatre wrote: >> Hi Thomas and Borislav, >> >> Could you please consider this patch for inclusion as a fix for v5.7? > > Do you mean by that that I should add > > Cc: > > so that it goes to stable? > > The commit in Fixes: is from 4.10-ish times... > Borislav: Sorry about that and thank you very much for catching this omission. Yes, this patch needs to go to stable. James: would you be able to do the backports to stable? Please note that support for L2 and L3 CDP was added across Linux versions and the resctrl files moved around since then so the backport would need some changes to address this issue in all versions. Reinette