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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 29CC5C433DB for ; Mon, 8 Feb 2021 18:53:48 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 830D764E59 for ; Mon, 8 Feb 2021 18:53:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 830D764E59 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=alien8.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E59316B0006; Mon, 8 Feb 2021 13:53:46 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E09956B006C; Mon, 8 Feb 2021 13:53:46 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D466C6B006E; Mon, 8 Feb 2021 13:53:46 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0221.hostedemail.com [216.40.44.221]) by kanga.kvack.org (Postfix) with ESMTP id C25676B0006 for ; Mon, 8 Feb 2021 13:53:46 -0500 (EST) Received: from smtpin05.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 7C52C824934B for ; Mon, 8 Feb 2021 18:53:46 +0000 (UTC) X-FDA: 77795999652.05.river01_4f02fd727601 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin05.hostedemail.com (Postfix) with ESMTP id 5B7B11809CD8E for ; Mon, 8 Feb 2021 18:53:46 +0000 (UTC) X-HE-Tag: river01_4f02fd727601 X-Filterd-Recvd-Size: 3395 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by imf03.hostedemail.com (Postfix) with ESMTP for ; Mon, 8 Feb 2021 18:53:45 +0000 (UTC) Received: from zn.tnic (p200300ec2f073f00132389f64ded89c1.dip0.t-ipconnect.de [IPv6:2003:ec:2f07:3f00:1323:89f6:4ded:89c1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 23DF21EC0512; Mon, 8 Feb 2021 19:53:44 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1612810424; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=1uhG+yA903nD3x6ie0DaKdIZW5ha5ZFqYz7PTiHf344=; b=LLIESv4cbsLI3itmuUSvfVcbCedzuZ1ZazsOyimWXj7EhAc0/OZiaJMJMw946UBnU6WiQ7 gVYf+bA1Lr/0EzmtW2rmpjCSpu1W8GDhP75Vr3dvIsQw3Ri+tq3dVrZudshCbmVt3p6e7L GD3vH8fVko0z0dgGi0id9CON9ReQ1aA= Date: Mon, 8 Feb 2021 19:53:41 +0100 From: Borislav Petkov To: "Yu, Yu-cheng" Cc: 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 , Michael Kerrisk Subject: Re: [PATCH v19 06/25] x86/cet: Add control-protection fault handler Message-ID: <20210208185341.GF18227@zn.tnic> References: <20210203225547.32221-1-yu-cheng.yu@intel.com> <20210203225547.32221-7-yu-cheng.yu@intel.com> <20210205135927.GH17488@zn.tnic> <2d829cba-784e-635a-e0c5-a7b334fa9b40@intel.com> <20210208182009.GE18227@zn.tnic> <690bc3b9-2890-e68d-5e4b-cda5c21b496b@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <690bc3b9-2890-e68d-5e4b-cda5c21b496b@intel.com> 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 Mon, Feb 08, 2021 at 10:50:07AM -0800, Yu, Yu-cheng wrote: > I have not run into the situation. Initially it was there because other > faults have it. Which other faults? > When you asked, I went through it and put out my reasoning. What does that mean? > I think it still makes sense to keep it. Because you have a hunch or you actually have an objective reason why? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette