68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
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* Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <errno.h>
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#include <ipxe/smbios.h>
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#include <ipxe/efi/efi.h>
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#include <ipxe/efi/Guid/SmBios.h>
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/** @file
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*
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* iPXE SMBIOS API for EFI
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*
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*/
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/** SMBIOS configuration table */
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static struct smbios_entry *smbios_entry;
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EFI_USE_TABLE ( SMBIOS_TABLE, &smbios_entry, 0 );
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/**
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* Find SMBIOS
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*
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* @v smbios SMBIOS entry point descriptor structure to fill in
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* @ret rc Return status code
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*/
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static int efi_find_smbios ( struct smbios *smbios ) {
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if ( ! smbios_entry ) {
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DBG ( "No SMBIOS table provided\n" );
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return -ENODEV;
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}
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if ( smbios_entry->signature != SMBIOS_SIGNATURE ) {
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DBG ( "Invalid SMBIOS signature\n" );
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return -ENODEV;
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}
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smbios->address = phys_to_user ( smbios_entry->smbios_address );
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smbios->len = smbios_entry->smbios_len;
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smbios->count = smbios_entry->smbios_count;
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smbios->version =
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SMBIOS_VERSION ( smbios_entry->major, smbios_entry->minor );
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DBG ( "Found SMBIOS v%d.%d entry point at %p (%x+%zx)\n",
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smbios_entry->major, smbios_entry->minor, smbios_entry,
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smbios_entry->smbios_address, smbios->len );
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return 0;
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}
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PROVIDE_SMBIOS ( efi, find_smbios, efi_find_smbios );
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