95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2010 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/relocator.h>
|
|
#include <grub/relocator_private.h>
|
|
#include <grub/memory.h>
|
|
#include <grub/ieee1275/ieee1275.h>
|
|
|
|
unsigned
|
|
grub_relocator_firmware_get_max_events (void)
|
|
{
|
|
int counter = 0;
|
|
auto int NESTED_FUNC_ATTR count (grub_uint64_t addr __attribute__ ((unused)),
|
|
grub_uint64_t len __attribute__ ((unused)),
|
|
grub_uint32_t type __attribute__ ((unused)));
|
|
int NESTED_FUNC_ATTR count (grub_uint64_t addr __attribute__ ((unused)),
|
|
grub_uint64_t len __attribute__ ((unused)),
|
|
grub_uint32_t type __attribute__ ((unused)))
|
|
{
|
|
counter++;
|
|
return 0;
|
|
}
|
|
|
|
if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET))
|
|
return 0;
|
|
grub_machine_mmap_iterate (count);
|
|
return 2 * counter;
|
|
}
|
|
|
|
unsigned
|
|
grub_relocator_firmware_fill_events (struct grub_relocator_mmap_event *events)
|
|
{
|
|
int counter = 0;
|
|
auto int NESTED_FUNC_ATTR fill (grub_uint64_t addr, grub_uint64_t len,
|
|
grub_uint32_t type);
|
|
int NESTED_FUNC_ATTR fill (grub_uint64_t addr, grub_uint64_t len,
|
|
grub_uint32_t type)
|
|
{
|
|
if (type != GRUB_MACHINE_MEMORY_AVAILABLE)
|
|
return 0;
|
|
|
|
if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM))
|
|
{
|
|
if (addr + len <= 0x180000)
|
|
return 0;
|
|
|
|
if (addr < 0x180000)
|
|
{
|
|
len = addr + len - 0x180000;
|
|
addr = 0x180000;
|
|
}
|
|
}
|
|
|
|
events[counter].type = REG_FIRMWARE_START;
|
|
events[counter].pos = addr;
|
|
counter++;
|
|
events[counter].type = REG_FIRMWARE_END;
|
|
events[counter].pos = addr + len;
|
|
counter++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET))
|
|
return 0;
|
|
grub_machine_mmap_iterate (fill);
|
|
return counter;
|
|
}
|
|
|
|
int
|
|
grub_relocator_firmware_alloc_region (grub_addr_t start, grub_size_t size)
|
|
{
|
|
return (grub_claimmap (start, size) >= 0);
|
|
}
|
|
|
|
void
|
|
grub_relocator_firmware_free_region (grub_addr_t start, grub_size_t size)
|
|
{
|
|
grub_ieee1275_release (start, size);
|
|
}
|