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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,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 8DF20C433E0 for ; Fri, 29 Jan 2021 21:13:36 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C137264E04 for ; Fri, 29 Jan 2021 21:13:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C137264E04 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 53E0E8D0002; Fri, 29 Jan 2021 16:13:35 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 4A0888D0001; Fri, 29 Jan 2021 16:13:35 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3682D8D0002; Fri, 29 Jan 2021 16:13:35 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0039.hostedemail.com [216.40.44.39]) by kanga.kvack.org (Postfix) with ESMTP id 1B7158D0001 for ; Fri, 29 Jan 2021 16:13:35 -0500 (EST) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id D6CD7181AEF31 for ; Fri, 29 Jan 2021 21:13:34 +0000 (UTC) X-FDA: 77760063948.19.whip29_59154d1275ab Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin19.hostedemail.com (Postfix) with ESMTP id AEF781AD1B7 for ; Fri, 29 Jan 2021 21:13:34 +0000 (UTC) X-HE-Tag: whip29_59154d1275ab X-Filterd-Recvd-Size: 3243 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by imf23.hostedemail.com (Postfix) with ESMTP for ; Fri, 29 Jan 2021 21:13:33 +0000 (UTC) IronPort-SDR: vQZr9bmuUkGcJk9GaYqEjPjRjK3hsS97qKEWFLqsTJXX30msFlK+h+UL1HpbQUagqE+Q2tdWGu pvdOZXLHh5xA== X-IronPort-AV: E=McAfee;i="6000,8403,9879"; a="265315928" X-IronPort-AV: E=Sophos;i="5.79,386,1602572400"; d="scan'208";a="265315928" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jan 2021 13:13:31 -0800 IronPort-SDR: YKpYFCq+rRt4zqUspD1JImoQHJ9ODV3X6/aXQ4uP4iER2tVzPmgw/RbyRy3mSTJpd8CYqX9jRr r0VhB8vP9R9A== X-IronPort-AV: E=Sophos;i="5.79,386,1602572400"; d="scan'208";a="475532535" Received: from yyu32-mobl1.amr.corp.intel.com (HELO [10.212.73.214]) ([10.212.73.214]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jan 2021 13:13:29 -0800 Subject: Re: [PATCH v18 02/25] x86/cet/shstk: Add Kconfig option for user-mode control-flow protection To: Borislav Petkov , Dave Hansen Cc: Andy Lutomirski , x86@kernel.org, "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V. Shankar" , Vedvyas Shanbhogue , Dave Martin , Weijiang Yang , Pengfei Xu References: <40a5a9b5-9c83-473d-5f62-a16ecde50f2a@intel.com> <86F8CE62-A94B-46BD-9A29-DBE1CC14AA83@amacapital.net> <58d5f029-ee8a-ca93-f0e6-0278db22e208@intel.com> <20210129204601.GG27841@zn.tnic> From: "Yu, Yu-cheng" Message-ID: <9061f862-8711-2ca2-b737-8d171de2f0c2@intel.com> Date: Fri, 29 Jan 2021 13:13:26 -0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: <20210129204601.GG27841@zn.tnic> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 1/29/2021 12:46 PM, Borislav Petkov wrote: > On Fri, Jan 29, 2021 at 12:33:43PM -0800, Dave Hansen wrote: >> In that case is there any reason to keep the "depends on CPU_SUP_INTEL"? > > Probably not. I haven't heard of the AMD implementation being somehow > different from Intel's. > Ok, I will remove it.