Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp1160596pxb; Sun, 21 Feb 2021 14:12:24 -0800 (PST) X-Google-Smtp-Source: ABdhPJxVN84ByIlruVmp9y8Clfz8dcsQU7JVAFHR+Ra9u0xu5dK18iJAreKXvD8PQXwXBmGOc6q7 X-Received: by 2002:a17:906:681a:: with SMTP id k26mr4646271ejr.450.1613945544408; Sun, 21 Feb 2021 14:12:24 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1613945544; cv=none; d=google.com; s=arc-20160816; b=JKLTyWUnijJD9lZQzWeY/gg9JcDTiNGIyWv2kvEYtuBBPdCCJgopN7lV+8dNp+DxDR pKbHfqmkiNvsMVXO7bEhUIFcwq4ho1B4AT/oNYf9aeyy7V63CRzL+phi1G0hi8+/A4Ua hCcS26xq5enDdWJlqe4oP5E7dyirdb+wvKiJuzF+89TjbIRfa0uggVIAsD9SEGBFSk01 cyy4ugKGCDqeCbKfzOf6V/gCbbsCN+p72s8L3RtgjXuNsh1uOBJ5ZA+tOXulbwjv9r4R njHI6Hx4XT7DFYAN+p6tTUkdUk5i8HgK8neSPeuj/GEq41Rm1lBd60nTRxxYcL8FuVR3 0Ruw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-transfer-encoding :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=6TFnR2wTHAnoA9eOghAbSgZz+AhRgqpjAOQoEVveYec=; b=YZq6h2oXj6bSh/Lb0JXtOByXHIvt8vmgnjxzSz+eoOeDzL/yfVM1Kk1W7BbDcTP+Mi bxz8vLSgb0SEbS+fsFhfbb7NH6uUze4PlOzVtGY45UTJEMH8VGgwTYNPrVpm2DvPSehX K3a3hVy+P8e10MSAZHSUUD65uhceGGvMlHZu4wgQQQAQBSZjtDbO8BW/L0i4Lr5xqn93 qOTaUljWfqSZcRXC9Nrt/S/5GXyJl7fK7URfX4GhxxA0i4txnKcEN2zysr7gv641Rfm+ FvboGIj/oS7yyTTurWqFf1J70M+CYSG4lzTT975umiL602h3Am394yQajdzlNMQhJC/t UHew== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=VqjTp8Dx; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i8si11852522ejj.286.2021.02.21.14.12.01; Sun, 21 Feb 2021 14:12:24 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=VqjTp8Dx; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231615AbhBUWLd (ORCPT + 99 others); Sun, 21 Feb 2021 17:11:33 -0500 Received: from mail.skyhub.de ([5.9.137.197]:52526 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231440AbhBUWLY (ORCPT ); Sun, 21 Feb 2021 17:11:24 -0500 Received: from zn.tnic (p200300ec2f205c0001ea2f1fa764c384.dip0.t-ipconnect.de [IPv6:2003:ec:2f20:5c00:1ea:2f1f:a764:c384]) (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 890531EC04A9; Sun, 21 Feb 2021 23:10:39 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1613945439; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6TFnR2wTHAnoA9eOghAbSgZz+AhRgqpjAOQoEVveYec=; b=VqjTp8Dxc0afvsW7ir4R3wD6S11U/WUDPCCHnPJvcBaQGRFfLYDZvNyVENvylCVAzeExHe 0ju1GlhqhN9ZoJ1NguQ1qy25L0oaVgRv+kBx1RAsN0K9NYL204Pv6qLgtUtHxmIhrKyVqC OIqs80vngvlzR4k4cSmr1ZTKIN4x7yI= Date: Sun, 21 Feb 2021 23:10:37 +0100 From: Borislav Petkov To: Paul Menzel Cc: Thomas Gleixner , Ingo Molnar , x86@kernel.org, Chao Fan , linux-kernel@vger.kernel.org Subject: Re: *Wrong EFI loader signature.* logged on non-EFI boot Message-ID: <20210221221037.GD1897@zn.tnic> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Feb 21, 2021 at 10:22:56PM +0100, Paul Menzel wrote: > It’s unexpected to see the EFI loader signature to be checked in this > scenario. Why is it unexpected? You have enabled that check through CONFIG_EFI=y. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette