Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761365AbXHTRVQ (ORCPT ); Mon, 20 Aug 2007 13:21:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752925AbXHTRVD (ORCPT ); Mon, 20 Aug 2007 13:21:03 -0400 Received: from smtp-out.google.com ([216.239.45.13]:3678 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751480AbXHTRVB (ORCPT ); Mon, 20 Aug 2007 13:21:01 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=received:message-id:date:from:to:subject:cc:in-reply-to: mime-version:content-type:content-transfer-encoding: content-disposition:references; b=DH8a2dm/tx0ob/NeOe3eBNT54TnsCcAPhS18En5zUqcA9J8AVx/xCkjiZMq1pbX0O w4kQpsOS3Y/B2FsGR3j6Q== Message-ID: <236ccac0708201020y2bfe4aadj8b1f6df361f61@mail.gmail.com> Date: Mon, 20 Aug 2007 10:20:48 -0700 From: "San Mehat" To: "H. Peter Anvin" Subject: Re: [PATCH 0/3] x86_64 EFI runtime service support Cc: "Yinghai Lu" , "Eric W. Biederman" , "Huang, Ying" , "Andrew Morton" , "Andi Kleen" , "Chandramouli Narayanan" , linux-kernel@vger.kernel.org In-Reply-To: <46C9C9C7.8080506@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1186990219.22431.37.camel@caritas-dev.intel.com> <20070815161642.1bfbbe9c.akpm@linux-foundation.org> <46C38AA8.5040202@zytor.com> <1187251248.15063.12.camel@caritas-dev.intel.com> <86802c440708191646r1caab5d8yd82c55fd2c8262db@mail.gmail.com> <46C9C9C7.8080506@zytor.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 820 Lines: 24 On 8/20/07, H. Peter Anvin wrote: > Yinghai Lu wrote: > > > > someone told me that EFI PEI will be 32 bit ( for mem etc > > initialization), and after that will be 64 bit, so the Run time > > service will be 64 bit only, and it will only support 64 bit OS with > > EFI. and they have another mode to emulate the legacy BIOS to boot > > 32bit OS. > > > > That seems unlikely for e.g. the existing Macs already in the field. > > *Sigh.* > Actually some implementations do run PEI in 32 bit and DXE/BDS in 64 bit; I'm not sure what Macintosh does though.. -san - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/