diff options
Diffstat (limited to 'roms/ipxe/src/arch/i386/interface/pcbios/bios_smbios.c')
-rw-r--r-- | roms/ipxe/src/arch/i386/interface/pcbios/bios_smbios.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/roms/ipxe/src/arch/i386/interface/pcbios/bios_smbios.c b/roms/ipxe/src/arch/i386/interface/pcbios/bios_smbios.c new file mode 100644 index 00000000..dd7897e2 --- /dev/null +++ b/roms/ipxe/src/arch/i386/interface/pcbios/bios_smbios.c @@ -0,0 +1,61 @@ +/* + * 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. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <stdint.h> +#include <string.h> +#include <errno.h> +#include <assert.h> +#include <ipxe/uaccess.h> +#include <ipxe/smbios.h> +#include <realmode.h> +#include <pnpbios.h> + +/** @file + * + * System Management BIOS + * + */ + +/** + * Find SMBIOS + * + * @v smbios SMBIOS entry point descriptor structure to fill in + * @ret rc Return status code + */ +static int bios_find_smbios ( struct smbios *smbios ) { + struct smbios_entry entry; + int rc; + + /* Scan through BIOS segment to find SMBIOS entry point */ + if ( ( rc = find_smbios_entry ( real_to_user ( BIOS_SEG, 0 ), 0x10000, + &entry ) ) != 0 ) + return rc; + + /* Fill in entry point descriptor structure */ + smbios->address = phys_to_user ( entry.smbios_address ); + smbios->len = entry.smbios_len; + smbios->count = entry.smbios_count; + smbios->version = SMBIOS_VERSION ( entry.major, entry.minor ); + + return 0; +} + +PROVIDE_SMBIOS ( pcbios, find_smbios, bios_find_smbios ); |