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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 E57C8C433FE for ; Tue, 8 Dec 2020 17:55:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 93B4823B3E for ; Tue, 8 Dec 2020 17:55:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727998AbgLHRzW (ORCPT ); Tue, 8 Dec 2020 12:55:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726810AbgLHRzV (ORCPT ); Tue, 8 Dec 2020 12:55:21 -0500 Received: from ms.lwn.net (ms.lwn.net [IPv6:2600:3c01:e000:3a1::42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94D5CC061749; Tue, 8 Dec 2020 09:54:41 -0800 (PST) Received: from lwn.net (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 3E7342AE; Tue, 8 Dec 2020 17:54:40 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 ms.lwn.net 3E7342AE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lwn.net; s=20201203; t=1607450080; bh=vUPe5xnpjeq2RaLybVlar/PVL7nLlPiDhZ3QIs3m20A=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=GRjBzFPvR4kiKNQwFPmmxzQxrkIKDc8YNkpgRVUBRpFnNPj1VzA9PLr4bQRIgYuKE nglo3wWpIWrxUfRm8hVM65ug3d/2JtDRi1a54rElPcZWlQRI9zeJXrx9B+mSRGV2CA 79URsdjyLhoe7OuSb2FsMas1epmkLbhnxH0DhGbYGHIt5ae5WDYzcEOfgP5yLnB+mt x+N+/7S/qCEg3lpjZvfCrsfgrpfiPbsUSax6nxY+7VDtWsi2jpVUZE+zpJs9zTWLea kzd4eO5Y1htxj1+ioRH51aUPDhvRhu8qfhkmWbXT6kZ0XpoacjzNOODrSzL5qfxFTR C/mVTeuD8o49A== Date: Tue, 8 Dec 2020 10:54:39 -0700 From: Jonathan Corbet To: Mathieu Chouquet-Stringer Cc: Borislav Petkov , Stephen Kitt , Andrew Morton , Kees Cook , "Guilherme G. Piccoli" , Eric Biggers , Randy Dunlap , Qais Yousef , Naoki Hayama , Yue Hu , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Update documentation to reflect what TAINT_CPU_OUT_OF_SPEC means nowadays Message-ID: <20201208105439.23e2349b@lwn.net> In-Reply-To: <20201202153244.709752-1-me@mathieu.digital> References: <20201202153244.709752-1-me@mathieu.digital> Organization: LWN.net MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Wed, 2 Dec 2020 16:32:43 +0100 Mathieu Chouquet-Stringer wrote: > Hello Jonathan, > > Here's a patch updating the meaning of TAINT_CPU_OUT_OF_SPEC after > Borislav introduced changes in a7e1f67ed29f and upcoming patches in tip. > > TAINT_CPU_OUT_OF_SPEC now means a bit more what it implies as the > flag isn't set just because of a CPU misconfiguration or mismatch. > Historically it was for SMP kernel oops on an officially SMP incapable > processor but now it also covers CPUs whose MSRs have been incorrectly > poked at from userspace, drivers being used on non supported > architectures, broken firmware, mismatched CPUs, ... > > Update documentation and script to reflect that. > > Signed-off-by: Mathieu Chouquet-Stringer Hearing no objection, I've applied this. Thanks, jon