From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1GnnuY-0002qT-QZ for mharc-grub-devel@gnu.org; Fri, 24 Nov 2006 22:09:02 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1GnnuW-0002qI-GG for grub-devel@gnu.org; Fri, 24 Nov 2006 22:09:00 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1GnnuV-0002py-QK for grub-devel@gnu.org; Fri, 24 Nov 2006 22:08:59 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GnnuV-0002pv-Kv for grub-devel@gnu.org; Fri, 24 Nov 2006 22:08:59 -0500 Received: from [212.85.152.101] (helo=kotoba.storever.com) by monty-python.gnu.org with esmtp (Exim 4.52) id 1GnnuV-00012P-ET for grub-devel@gnu.org; Fri, 24 Nov 2006 22:08:59 -0500 Received: from kotoba.oasis.nexedi.com (kotoba.oasis.nexedi.com [212.85.152.101]) by kotoba.storever.com (Postfix) with ESMTP id BBBAD3C79B06D for ; Sat, 25 Nov 2006 06:58:28 +0100 (CET) Received: from [??1] (localhost [127.0.0.1]) by kotoba.storever.com (Postfix) with ESMTP id 918383C79B06C for ; Sat, 25 Nov 2006 06:58:28 +0100 (CET) From: "Yoshinori K. Okuji" Organization: enbug.org To: The development of GRUB 2 Date: Sat, 25 Nov 2006 04:08:54 +0100 User-Agent: KMail/1.8.2 References: <1163802029.20484.53.camel@basalt> <87u00rhl7w.fsf@night.trouble.net> <1164221907.29546.2.camel@basalt> In-Reply-To: <1164221907.29546.2.camel@basalt> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-6" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200611250408.55885.okuji@enbug.org> X-Bogosity: No, tests=bogofilter, spamicity=0.163754, version=0.17.2 Subject: Re: OpenSolaris and multiboot X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GRUB 2 List-Id: The development of GRUB 2 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Nov 2006 03:09:01 -0000 On Wednesday 22 November 2006 19:58, Hollis Blanchard wrote: > I think he's referring to the "architecture-specific" tags (which are > currently not fleshed out in the spec). There are different sections for > x86 and x86-64, and it is a good question about when each is used. > > I'm really not sure what would be different about the two sets, but if > there are differences, the ELF class seems like a reasonable way to > decide which to use. No difference, in my opinion. GRUB never activate 64-bit mode, and the firmware behaves exactly in the same way. Thus we don't need to pass different tags. Briefly, i386 and x86_64 are treated identically in the Multiboot Specification. I wrote some notes about x86_64, only because I had to make it clear how to initialize additional registers before passing the control to a kernel. Okuji