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coreboot: Split parts that are platform-independent.

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We currently assume that coreboot is always i386, it's no longer the case,
so split i386-coreboot parts from generic coreboot code.
This commit is contained in:
Vladimir Serbinenko 2017-05-08 19:06:22 +02:00
parent d08c968514
commit 461bfab7b7
10 changed files with 99 additions and 55 deletions
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53
grub-core/kern/i386/coreboot/cbtable.c
View file

@ -17,7 +17,7 @@
*/
#include <grub/i386/coreboot/memory.h>
#include <grub/i386/coreboot/lbio.h>
#include <grub/coreboot/lbio.h>
#include <grub/types.h>
#include <grub/err.h>
#include <grub/misc.h>
@ -25,59 +25,20 @@
GRUB_MOD_LICENSE ("GPLv3+");
/* Helper for grub_linuxbios_table_iterate. */
static int
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
grub_linuxbios_get_tables (void)
{
grub_linuxbios_table_header_t table_header;
grub_linuxbios_table_item_t table_item;
/* Assuming table_header is aligned to its size (8 bytes). */
for (table_header = (grub_linuxbios_table_header_t) 0x500;
table_header < (grub_linuxbios_table_header_t) 0x1000; table_header++)
if (check_signature (table_header))
goto signature_found;
if (grub_linuxbios_check_signature (table_header))
return table_header;
for (table_header = (grub_linuxbios_table_header_t) 0xf0000;
table_header < (grub_linuxbios_table_header_t) 0x100000; table_header++)
if (check_signature (table_header))
goto signature_found;
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
&& 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;
}
if (grub_linuxbios_check_signature (table_header))
return table_header;
return 0;
}