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Annotation of qemu/roms/ipxe/src/interface/efi/efi_smbios.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (C) 2008 Michael Brown <[email protected]>.
                      3:  *
                      4:  * This program is free software; you can redistribute it and/or
                      5:  * modify it under the terms of the GNU General Public License as
                      6:  * published by the Free Software Foundation; either version 2 of the
                      7:  * License, or any later version.
                      8:  *
                      9:  * This program is distributed in the hope that it will be useful, but
                     10:  * WITHOUT ANY WARRANTY; without even the implied warranty of
                     11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     12:  * General Public License for more details.
                     13:  *
                     14:  * You should have received a copy of the GNU General Public License
                     15:  * along with this program; if not, write to the Free Software
                     16:  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
                     17:  */
                     18: 
                     19: FILE_LICENCE ( GPL2_OR_LATER );
                     20: 
                     21: #include <errno.h>
                     22: #include <ipxe/smbios.h>
                     23: #include <ipxe/efi/efi.h>
                     24: #include <ipxe/efi/Guid/SmBios.h>
                     25: 
                     26: /** @file
                     27:  *
                     28:  * iPXE SMBIOS API for EFI
                     29:  *
                     30:  */
                     31: 
                     32: /** SMBIOS configuration table */
                     33: static struct smbios_entry *smbios_entry;
                     34: EFI_USE_TABLE ( SMBIOS_TABLE, &smbios_entry, 0 );
                     35: 
                     36: /**
                     37:  * Find SMBIOS
                     38:  *
                     39:  * @v smbios           SMBIOS entry point descriptor structure to fill in
                     40:  * @ret rc             Return status code
                     41:  */
                     42: static int efi_find_smbios ( struct smbios *smbios ) {
                     43: 
                     44:        if ( ! smbios_entry ) {
                     45:                DBG ( "No SMBIOS table provided\n" );
                     46:                return -ENODEV;
                     47:        }
                     48: 
                     49:        if ( smbios_entry->signature != SMBIOS_SIGNATURE ) {
                     50:                DBG ( "Invalid SMBIOS signature\n" );
                     51:                return -ENODEV;
                     52:        }
                     53: 
                     54:        smbios->address = phys_to_user ( smbios_entry->smbios_address );
                     55:        smbios->len = smbios_entry->smbios_len;
                     56:        smbios->count = smbios_entry->smbios_count;
                     57:        DBG ( "Found SMBIOS v%d.%d entry point at %p (%x+%zx)\n",
                     58:              smbios_entry->major, smbios_entry->minor, smbios_entry,
                     59:              smbios_entry->smbios_address, smbios->len );
                     60: 
                     61:        return 0;
                     62: }
                     63: 
                     64: PROVIDE_SMBIOS ( efi, find_smbios, efi_find_smbios );

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