| /* | |
| * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public License as | |
| * published by the Free Software Foundation; either version 2 of the | |
| * License, or any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, but | |
| * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
| * 02110-1301, USA. | |
| * | |
| * You can also choose to distribute this program under the terms of | |
| * the Unmodified Binary Distribution Licence (as given in the file | |
| * COPYING.UBDL), provided that you have satisfied its requirements. | |
| */ | |
| FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); | |
| #include <stdint.h> | |
| #include <realmode.h> | |
| #include <bios.h> | |
| #include <basemem.h> | |
| #include <ipxe/memmap.h> | |
| /** @file | |
| * | |
| * Base memory allocation | |
| * | |
| */ | |
| /** | |
| * Set the BIOS free base memory counter | |
| * | |
| * @v new_fbms New free base memory counter (in kB) | |
| */ | |
| void set_fbms ( unsigned int new_fbms ) { | |
| uint16_t fbms = new_fbms; | |
| /* Update the BIOS memory counter */ | |
| put_real ( fbms, BDA_SEG, BDA_FBMS ); | |
| /* Update our hidden memory region map */ | |
| hide_basemem(); | |
| } |