From owner-freebsd-hackers@FreeBSD.ORG Mon Jun 9 05:22:41 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9230E37B401 for ; Mon, 9 Jun 2003 05:22:41 -0700 (PDT) Received: from gatorzone.com (gatormail.gatorzone.com [216.53.131.133]) by mx1.FreeBSD.org (Postfix) with ESMTP id CBCD043FBD for ; Mon, 9 Jun 2003 05:22:40 -0700 (PDT) (envelope-from cd_freebsd@gatorzone.com) Date: Mon, 9 Jun 2003 08:27:17 -0400 Message-Id: <200306090827.AA151912602@gatorzone.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii From: "cd_freebsd" To: X-Mailer: Subject: Re: Mapping Physical Memory without a Device? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: cd_freebsd@gatorzone.com List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Jun 2003 12:22:41 -0000 John Baldwin wrote: >> The first 1 meg of memory is 1:1 mapped at KERNBASE. IOW, you can get to the BIOS at KERNBASE + 0xc0000. That should cover these first two items. Even on non-i386 machines? I guess it really doesn't matter since I am reading the BIOS area to detect that I am running on a specific type machine. The other calls are ignored if the data read does not equal the expected values. Thanks for the help.