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