| edd.h (922d27b596c179c5a7d68abe45ede5adb1b6589c) | edd.h (5b8031ccb4ed6e84457d883198d77efc307085dc) |
|---|---|
| 1/* 2 * linux/include/linux/edd.h 3 * Copyright (C) 2002, 2003, 2004 Dell Inc. 4 * by Matt Domsch <Matt_Domsch@dell.com> 5 * 6 * structures and definitions for the int 13h, ax={41,48}h 7 * BIOS Enhanced Disk Drive Services 8 * This is based on the T13 group document D1572 Revision 0 (August 14 2002) 9 * available at http://www.t13.org/docs2002/d1572r0.pdf. It is 10 * very similar to D1484 Revision 3 http://www.t13.org/docs2002/d1484r3.pdf 11 * 12 * In a nutshell, arch/{i386,x86_64}/boot/setup.S populates a scratch 13 * table in the boot_params that contains a list of BIOS-enumerated 14 * boot devices. 15 * In arch/{i386,x86_64}/kernel/setup.c, this information is 16 * transferred into the edd structure, and in drivers/firmware/edd.c, that 17 * information is used to identify BIOS boot disk. The code in setup.S 18 * is very sensitive to the size of these structures. 19 * | 1/* 2 * linux/include/linux/edd.h 3 * Copyright (C) 2002, 2003, 2004 Dell Inc. 4 * by Matt Domsch <Matt_Domsch@dell.com> 5 * 6 * structures and definitions for the int 13h, ax={41,48}h 7 * BIOS Enhanced Disk Drive Services 8 * This is based on the T13 group document D1572 Revision 0 (August 14 2002) 9 * available at http://www.t13.org/docs2002/d1572r0.pdf. It is 10 * very similar to D1484 Revision 3 http://www.t13.org/docs2002/d1484r3.pdf 11 * 12 * In a nutshell, arch/{i386,x86_64}/boot/setup.S populates a scratch 13 * table in the boot_params that contains a list of BIOS-enumerated 14 * boot devices. 15 * In arch/{i386,x86_64}/kernel/setup.c, this information is 16 * transferred into the edd structure, and in drivers/firmware/edd.c, that 17 * information is used to identify BIOS boot disk. The code in setup.S 18 * is very sensitive to the size of these structures. 19 * |
| 20 * This program is free software; you can redistribute it and/or modify 21 * it under the terms of the GNU General Public License v2.0 as published by 22 * the Free Software Foundation 23 * 24 * This program is distributed in the hope that it will be useful, 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27 * GNU General Public License for more details. 28 * | 20 * SPDX-License-Identifier: GPL-2.0 |
| 29 */ 30#ifndef _LINUX_EDD_H 31#define _LINUX_EDD_H 32 33#include <linux/types.h> 34 35#define EDDNR 0x1e9 /* addr of number of edd_info structs at EDDBUF 36 in boot_params - treat this as 1 byte */ --- 158 unchanged lines hidden --- | 21 */ 22#ifndef _LINUX_EDD_H 23#define _LINUX_EDD_H 24 25#include <linux/types.h> 26 27#define EDDNR 0x1e9 /* addr of number of edd_info structs at EDDBUF 28 in boot_params - treat this as 1 byte */ --- 158 unchanged lines hidden --- |