2 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 FILE_LICENCE ( GPL2_OR_LATER );
26 #include <ipxe/hidemem.h>
30 * Base memory allocation
35 * Set the BIOS free base memory counter
37 * @v new_fbms New free base memory counter (in kB)
39 void set_fbms ( unsigned int new_fbms ) {
40 uint16_t fbms = new_fbms;
42 /* Update the BIOS memory counter */
43 put_real ( fbms, BDA_SEG, BDA_FBMS );
45 /* Update our hidden memory region map */