| /* |
| * Copyright (C) 2008 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| FILE_LICENCE ( GPL2_OR_LATER ); |
| |
| #include <errno.h> |
| #include <gpxe/smbios.h> |
| #include <gpxe/efi/efi.h> |
| #include <gpxe/efi/Guid/SmBios.h> |
| |
| /** @file |
| * |
| * gPXE SMBIOS API for EFI |
| * |
| */ |
| |
| /** SMBIOS configuration table */ |
| static struct smbios_entry *smbios_entry; |
| EFI_USE_TABLE ( EFI_SMBIOS_TABLE, &smbios_entry, 0 ); |
| |
| /** |
| * Find SMBIOS |
| * |
| * @v smbios SMBIOS entry point descriptor structure to fill in |
| * @ret rc Return status code |
| */ |
| static int efi_find_smbios ( struct smbios *smbios ) { |
| |
| if ( ! smbios_entry ) { |
| DBG ( "No SMBIOS table provided\n" ); |
| return -ENODEV; |
| } |
| |
| if ( smbios_entry->signature != SMBIOS_SIGNATURE ) { |
| DBG ( "Invalid SMBIOS signature\n" ); |
| return -ENODEV; |
| } |
| |
| smbios->address = phys_to_user ( smbios_entry->smbios_address ); |
| smbios->len = smbios_entry->smbios_len; |
| smbios->count = smbios_entry->smbios_count; |
| DBG ( "Found SMBIOS v%d.%d entry point at %p (%x+%zx)\n", |
| smbios_entry->major, smbios_entry->minor, smbios_entry, |
| smbios_entry->smbios_address, smbios->len ); |
| |
| return 0; |
| } |
| |
| PROVIDE_SMBIOS ( efi, find_smbios, efi_find_smbios ); |