diff options
Diffstat (limited to 'src/VBox/Devices/PC/ipxe/src/interface/efi/efi_smbios.c')
-rw-r--r-- | src/VBox/Devices/PC/ipxe/src/interface/efi/efi_smbios.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/VBox/Devices/PC/ipxe/src/interface/efi/efi_smbios.c b/src/VBox/Devices/PC/ipxe/src/interface/efi/efi_smbios.c new file mode 100644 index 00000000..d7877b0a --- /dev/null +++ b/src/VBox/Devices/PC/ipxe/src/interface/efi/efi_smbios.c @@ -0,0 +1,79 @@ +/* + * 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., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <errno.h> +#include <ipxe/smbios.h> +#include <ipxe/efi/efi.h> +#include <ipxe/efi/Guid/SmBios.h> + +/** @file + * + * iPXE SMBIOS API for EFI + * + */ + +/** SMBIOS configuration table */ +static struct smbios_entry *smbios_entry; +EFI_USE_TABLE ( SMBIOS_TABLE, &smbios_entry, 0 ); + +/** SMBIOS configuration table */ +static struct smbios3_entry *smbios3_entry; +EFI_USE_TABLE ( SMBIOS3_TABLE, &smbios3_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 ) { + + /* Use 64-bit table if present */ + if ( smbios3_entry && ( smbios3_entry->signature == SMBIOS3_SIGNATURE ) ) { + smbios->address = phys_to_user ( smbios3_entry->smbios_address ); + smbios->len = smbios3_entry->smbios_len; + smbios->count = 0; + smbios->version = + SMBIOS_VERSION ( smbios3_entry->major, smbios3_entry->minor ); + DBG ( "Found 64-bit SMBIOS v%d.%d entry point at %p (%lx+%zx)\n", + smbios3_entry->major, smbios3_entry->minor, smbios3_entry, + user_to_phys ( smbios->address, 0 ), smbios->len ); + return 0; + } + + /* Otherwise, use 32-bit table if present */ + if ( smbios_entry && ( smbios_entry->signature == SMBIOS_SIGNATURE ) ) { + smbios->address = phys_to_user ( smbios_entry->smbios_address ); + smbios->len = smbios_entry->smbios_len; + smbios->count = smbios_entry->smbios_count; + smbios->version = + SMBIOS_VERSION ( smbios_entry->major, smbios_entry->minor ); + DBG ( "Found 32-bit SMBIOS v%d.%d entry point at %p (%lx+%zx)\n", + smbios_entry->major, smbios_entry->minor, smbios_entry, + user_to_phys ( smbios->address, 0 ), smbios->len ); + return 0; + } + + DBG ( "No SMBIOS table provided\n" ); + return -ENODEV; +} + +PROVIDE_SMBIOS ( efi, find_smbios, efi_find_smbios ); |