From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: rom bios Date: Sun, 25 Mar 2007 10:56:50 +0200 Message-ID: <46063952.40108@qumranet.com> References: <352399.53595.qm@web60225.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: DONGYAOZU Return-path: In-Reply-To: <352399.53595.qm-K0cdyur6QfKA/QwVtaZbd3CJp6faPEW9@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org DONGYAOZU wrote: > When looking at the guest physical address space > layout, I am confused by the rombios location. Besides > normal bios position (0xE0000-1M), it seems the whole > region 2 is for that purpose too (4G-12K--4G), and > region 0 high end sapce also have a copy. > > What is the reason to have multiple copy of rom bios? > The x86 reset vector is 0xfffffff0 physical, so we need a copy there. -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV