From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754962Ab3B1Pne (ORCPT ); Thu, 28 Feb 2013 10:43:34 -0500 Received: from exprod7og101.obsmtp.com ([64.18.2.155]:35752 "EHLO exprod7og101.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752760Ab3B1Pnd (ORCPT ); Thu, 28 Feb 2013 10:43:33 -0500 Message-ID: <512F7B0E.1030404@genband.com> Date: Thu, 28 Feb 2013 09:43:10 -0600 From: Chris Friesen User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Lightning/1.0b3pre Thunderbird/3.1.16 MIME-Version: 1.0 To: Florian Weimer CC: Greg KH , Matthew Garrett , David Howells , Linus Torvalds , Josh Boyer , Peter Jones , Vivek Goyal , Kees Cook , keyrings@linux-nfs.org, Linux Kernel Mailing List Subject: Re: [GIT PULL] Load keys from signed PE binaries References: <87ppzo79in.fsf@mid.deneb.enyo.de> <30665.1361461678@warthog.procyon.org.uk> <20130221164244.GA19625@srcf.ucam.org> <18738.1361836265@warthog.procyon.org.uk> <20130226005955.GA19686@kroah.com> <20130226023332.GA29282@srcf.ucam.org> <20130226030249.GB23834@kroah.com> <20130226031338.GA29784@srcf.ucam.org> <20130226033156.GA24999@kroah.com> <8738wgsweq.fsf@mid.deneb.enyo.de> In-Reply-To: <8738wgsweq.fsf@mid.deneb.enyo.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 28 Feb 2013 15:43:11.0436 (UTC) FILETIME=[504158C0:01CE15CA] X-TM-AS-Product-Ver: SMEX-8.0.0.4160-6.500.1024-19678.000 X-TM-AS-Result: No--8.163100-8.000000-31 X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/28/2013 01:57 AM, Florian Weimer wrote: > In any case, there's another reading of the UEFI Secure Boot > requirements: you may run any code you wish after calling > ExitBootServices(). That could be an unsigned, traditional GRUB. But > this will not generally address the issue of dual-booting Windows 8 in > such a way that Windows sees that the device has enabled Microsoft > Secure Boot. Would it be possible to have a signed bootloader that allows booting Win8 from within the secure environment, or it could exit the secure environment and run unsigned grub? Chris