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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2007,2008,2013 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/i386/coreboot/memory.h>
#include <grub/coreboot/lbio.h>
#include <grub/types.h>
#include <grub/err.h>
#include <grub/misc.h>
#include <grub/dl.h>
#pragma GCC diagnostic ignored "-Wcast-align"
/* Helper for grub_linuxbios_table_iterate. */
int
grub_linuxbios_check_signature (grub_linuxbios_table_header_t tbl_header)
{
if (! grub_memcmp (tbl_header->signature, "LBIO", 4))
return 1;
return 0;
}
grub_err_t
grub_linuxbios_table_iterate (int (*hook) (grub_linuxbios_table_item_t,
void *),
void *hook_data)
{
grub_linuxbios_table_header_t table_header = grub_linuxbios_get_tables ();
grub_linuxbios_table_item_t table_item;
if (!table_header)
return 0;
signature_found:
table_item =
(grub_linuxbios_table_item_t) ((char *) table_header +
table_header->header_size);
for (; table_item < (grub_linuxbios_table_item_t) ((char *) table_header
+ table_header->header_size
+ table_header->table_size);
table_item = (grub_linuxbios_table_item_t) ((char *) table_item + table_item->size))
{
if (table_item->tag == GRUB_LINUXBIOS_MEMBER_LINK
&& grub_linuxbios_check_signature ((grub_linuxbios_table_header_t) (grub_addr_t)
*(grub_uint64_t *) (table_item + 1)))
{
table_header = (grub_linuxbios_table_header_t) (grub_addr_t)
*(grub_uint64_t *) (table_item + 1);
goto signature_found;
}
if (hook (table_item, hook_data))
return 1;
}
return 0;
}
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