From owner-cvs-all@FreeBSD.ORG Sat Sep 18 21:11:59 2004 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CC25C16A4CF for ; Sat, 18 Sep 2004 21:11:59 +0000 (GMT) Received: from mail3.speakeasy.net (mail3.speakeasy.net [216.254.0.203]) by mx1.FreeBSD.org (Postfix) with ESMTP id 822C043D53 for ; Sat, 18 Sep 2004 21:11:59 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 29471 invoked from network); 18 Sep 2004 21:11:59 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 18 Sep 2004 21:11:58 -0000 Received: from slimer.baldwin.cx (slimer.baldwin.cx [192.168.0.16]) (authenticated bits=0) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id i8ILBrU0010381; Sat, 18 Sep 2004 17:11:56 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: "Poul-Henning Kamp" Date: Sat, 18 Sep 2004 16:59:48 -0400 User-Agent: KMail/1.6.2 References: <1860.1095491285@critter.freebsd.dk> In-Reply-To: <1860.1095491285@critter.freebsd.dk> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200409181659.48310.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/boot/i386/boot2 boot2.c X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Sep 2004 21:11:59 -0000 On Saturday 18 September 2004 03:08 am, Poul-Henning Kamp wrote: > In message <200409180207.i8I27044010045@repoman.freebsd.org>, John Baldwin > writ > > es: > >jhb 2004-09-18 02:07:00 UTC > > > > FreeBSD src repository > > > > Modified files: > > sys/boot/i386/boot2 boot2.c > > Log: > > A long, long time ago in a CVS branch far away (specifically, HEAD prior > > to 4.0 and RELENG_3), the BTX mini-kernel used paging rather than flat > > mode and clients were limited to a virtual address space of 16 > > megabytes. Because of this limitation, boot2 silently masked all physical > > addresses in any binaries it loaded so that they were always loaded into > > the first 16 Meg. Since BTX no longer has this limitation (and hasn't > > for a long time), remove the masking from boot2. This allows boot2 to > > load kernels larger than about 12 to 14 meg (12 for non-PAE, 14 for PAE). > > Does this also give us better space for isa_dma bounce buffers ? Err, I don't see how it could. This only affects how boot2 handles addresses in the executables it loads, it doesn't affect how the kernel manages memory at all. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org