From owner-freebsd-ppc@FreeBSD.ORG Fri Jul 22 22:53:25 2005 Return-Path: X-Original-To: freebsd-ppc@freebsd.org Delivered-To: freebsd-ppc@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 02D9D16A448; Fri, 22 Jul 2005 22:53:24 +0000 (GMT) (envelope-from grehan@freebsd.org) Received: from liberty.onthenet.com.au (liberty.OntheNet.com.au [203.22.124.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 712F943D49; Fri, 22 Jul 2005 22:53:23 +0000 (GMT) (envelope-from grehan@freebsd.org) Received: from [203.144.2.167] (CPE-2-167.dsl.OntheNet.net [203.144.2.167]) by liberty.onthenet.com.au (8.12.9 - 20030918/8.12.9) with ESMTP id j6MMrL7v050316; Sat, 23 Jul 2005 08:53:21 +1000 (EST) (envelope-from grehan@freebsd.org) Message-ID: <42E178F4.1090308@freebsd.org> Date: Sat, 23 Jul 2005 08:53:40 +1000 From: Peter Grehan User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.2) Gecko/20041016 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ceri Davies References: <42CEF70A.2060605@freebsd.org> <20050712172040.GB46490@dragon.NUXI.org> <013401c58709$3172f500$1700a8c0@failure> <20050719145732.GA22045@dragon.NUXI.org> <20050720133521.GF34707@submonkey.net> <42DE5649.2010202@freebsd.org> <20050722195441.GF9649@submonkey.net> In-Reply-To: <20050722195441.GF9649@submonkey.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-ppc@freebsd.org Subject: Re: refrence machine X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2005 22:53:25 -0000 >> The G5 is a true 64-bit CPU with a 64-bit MMU. 32-bit user-mode code >>can run unchanged, but the kernel has to deal with the 64-bit MMU and >>various other bits and pieces that are painful to implement. > > So it's lack of code rather than anything more sinister? Good. I had > heard some complaints about a dodgy OpenFirmware implementation. That could still be possible ! The loader exercises OpenFirmware a bit and it seems to work OK. > I have a dual G5 PowerMac as of quite recently, and the > second-to-most-recent SNAP booted as far as probing for KDB backends > which was a pleasant surprise. ;) That's the loader working, but the kernel really doesn't get far before bombing out. later, Peter.