iPXE
pxe_loader.c
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00001 /*
00002  * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
00003  *
00004  * This program is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU General Public License as
00006  * published by the Free Software Foundation; either version 2 of the
00007  * License, or any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00017  * 02110-1301, USA.
00018  *
00019  * You can also choose to distribute this program under the terms of
00020  * the Unmodified Binary Distribution Licence (as given in the file
00021  * COPYING.UBDL), provided that you have satisfied its requirements.
00022  */
00023 
00024 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
00025 
00026 #include <ipxe/init.h>
00027 #include "pxe.h"
00028 #include "pxe_call.h"
00029 
00030 /** @file
00031  *
00032  * PXE UNDI loader
00033  *
00034  */
00035 
00036 /* PXENV_UNDI_LOADER
00037  *
00038  */
00039 PXENV_EXIT_t undi_loader ( struct s_UNDI_LOADER *undi_loader ) {
00040 
00041         /* Perform one-time initialisation (e.g. heap) */
00042         initialise();
00043 
00044         DBG ( "[PXENV_UNDI_LOADER to CS %04x DS %04x]",
00045               undi_loader->UNDI_CS, undi_loader->UNDI_DS );
00046 
00047         /* Fill in UNDI loader structure */
00048         undi_loader->PXEptr.segment = rm_cs;
00049         undi_loader->PXEptr.offset = __from_text16 ( &ppxe );
00050         undi_loader->PXENVptr.segment = rm_cs;
00051         undi_loader->PXENVptr.offset = __from_text16 ( &pxenv );
00052 
00053         undi_loader->Status = PXENV_STATUS_SUCCESS;
00054         return PXENV_EXIT_SUCCESS;
00055 }