From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262087AbVGFT6N (ORCPT ); Wed, 6 Jul 2005 15:58:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262089AbVGFT4V (ORCPT ); Wed, 6 Jul 2005 15:56:21 -0400 Received: from chretien.genwebhost.com ([209.59.175.22]:62379 "EHLO chretien.genwebhost.com") by vger.kernel.org with ESMTP id S262158AbVGFPiU (ORCPT ); Wed, 6 Jul 2005 11:38:20 -0400 Date: Wed, 6 Jul 2005 08:38:14 -0700 From: randy_dunlap To: Bhagyashri Bijwe Cc: linux-kernel@vger.kernel.org Subject: Re: bios interaction with linux kernel after uncompression. Message-Id: <20050706083814.071230ca.rdunlap@xenotime.net> In-Reply-To: References: Organization: YPO4 X-Mailer: Sylpheed version 1.0.5 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-ClamAntiVirus-Scanner: This mail is clean X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - chretien.genwebhost.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - xenotime.net X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 6 Jul 2005 12:02:26 +0530 Bhagyashri Bijwe wrote: | Hi, | During bootstrapping, bios provides services like video ,hard | drive services, memory sizing, PCI table to linux kernel. | After uncompression of kernel , Does linux kernel have any | interaction with bios? | I know that most of work is done by linux device driver. | What is dependency of running linux on bios ? | Thanks in advance, As little as possible after boot/init. That means that BIOS is used for APM mode selections if APM is being used and for ACPI state-switching. Oh, I guess we have to acknowledge that hidden SMI code also, but Linux doesn't use it AFAIK, it's just there and being executed. Those are all that I know of before being fully awake. --- ~Randy