core/pxeboot.c

   1 /*
   2  *   Copyright 1994-2009 H. Peter Anvin - All Rights Reserved
   3  *   Copyright 2009 Intel Corporation; author: H. Peter Anvin
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, Inc., 53 Temple Place Ste 330,
   8  *  Boston MA 02111-1307, USA; either version 2 of the License, or
   9  *  (at your option) any later version; incorporated herein by reference.
  10  */
  11
  12 #include <syslinux/video.h>
  13 #include "pxe.h"
  14 #include <com32.h>
  15
  16 #define LOCALBOOT_MSG   "Booting from local disk..."
  17
  18 extern void local_boot16(void);
  19
  20 /*
  21  * Boot to the local disk by returning the appropriate PXE magic.
  22  * AX contains the appropriate return code.
  23  */
  24 __export void local_boot(uint16_t ax)
  25 {
  26     com32sys_t ireg;
  27     memset(&ireg, 0, sizeof ireg);
  28
  29     syslinux_force_text_mode();
  30
  31     writestr(LOCALBOOT_MSG);
  32     crlf();
  33
  34     /* Restore the environment we were called with */
  35     reset_pxe();
  36
  37     cleanup_hardware();
  38
  39     ireg.eax.w[0] = ax;
  40     call16(local_boot16, &ireg, NULL);
  41 }