ia64/xen-unstable

view tools/firmware/rombios/32bit/32bitbios.c @ 19079:f3240cd3cd2b

rombios: Indirect through 32-bit jump table from within the 32-bit bios.

This gets rid of shenanigans with relocating the jump table around the
place.

Also clean up bios_info table while we are updating it.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Fri Jan 23 14:32:41 2009 +0000 (2009-01-23)
parents fe2957a376fe
children
line source
1 /*
2 * 32bitbios - jumptable for those function reachable from 16bit area
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 * Copyright (C) IBM Corporation, 2006
19 *
20 * Author: Stefan Berger <stefanb@us.ibm.com>
21 */
23 #include "rombios_compat.h"
25 asm (
26 " .text \n"
27 " movzwl %bx,%eax \n"
28 " jmp *jumptable(,%eax,4) \n"
29 " .data \n"
30 "jumptable: \n"
31 #define X(idx, ret, fn, args...) " .long "#fn"\n"
32 #include "32bitprotos.h"
33 #undef X
34 );