2008-11-20 20:30:24 +00:00
|
|
|
/*
|
|
|
|
|
* GRUB -- GRand Unified Bootloader
|
|
|
|
|
* Copyright (C) 2003,2004,2005,2007,2008 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/>.
|
|
|
|
|
*/
|
|
|
|
|
|
2010-09-04 15:10:10 +00:00
|
|
|
#include <grub/memory.h>
|
2008-11-20 20:30:24 +00:00
|
|
|
#include <grub/ieee1275/ieee1275.h>
|
|
|
|
|
#include <grub/types.h>
|
|
|
|
|
|
|
|
|
|
grub_err_t
|
2013-01-15 12:02:35 +00:00
|
|
|
grub_machine_mmap_iterate (grub_memory_hook_t hook, void *hook_data)
|
2008-11-20 20:30:24 +00:00
|
|
|
{
|
|
|
|
|
grub_ieee1275_phandle_t root;
|
|
|
|
|
grub_ieee1275_phandle_t memory;
|
|
|
|
|
grub_uint32_t available[32];
|
|
|
|
|
grub_ssize_t available_size;
|
|
|
|
|
grub_uint32_t address_cells = 1;
|
|
|
|
|
grub_uint32_t size_cells = 1;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
/* Determine the format of each entry in `available'. */
|
|
|
|
|
grub_ieee1275_finddevice ("/", &root);
|
|
|
|
|
grub_ieee1275_get_integer_property (root, "#address-cells", &address_cells,
|
|
|
|
|
sizeof address_cells, 0);
|
|
|
|
|
grub_ieee1275_get_integer_property (root, "#size-cells", &size_cells,
|
|
|
|
|
sizeof size_cells, 0);
|
|
|
|
|
|
2009-04-22 09:45:43 +00:00
|
|
|
if (size_cells > address_cells)
|
|
|
|
|
address_cells = size_cells;
|
|
|
|
|
|
2008-11-20 20:30:24 +00:00
|
|
|
/* Load `/memory/available'. */
|
|
|
|
|
if (grub_ieee1275_finddevice ("/memory", &memory))
|
|
|
|
|
return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
|
2009-12-24 22:53:05 +00:00
|
|
|
"couldn't find /memory node");
|
2008-11-20 20:30:24 +00:00
|
|
|
if (grub_ieee1275_get_integer_property (memory, "available", available,
|
|
|
|
|
sizeof available, &available_size))
|
|
|
|
|
return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
|
2009-12-24 22:53:05 +00:00
|
|
|
"couldn't examine /memory/available property");
|
2008-11-20 20:30:24 +00:00
|
|
|
|
2011-02-12 07:22:55 +00:00
|
|
|
if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS))
|
|
|
|
|
{
|
|
|
|
|
address_cells = 1;
|
|
|
|
|
size_cells = 1;
|
|
|
|
|
}
|
|
|
|
|
|
2008-11-20 20:30:24 +00:00
|
|
|
/* Decode each entry and call `hook'. */
|
|
|
|
|
i = 0;
|
|
|
|
|
available_size /= sizeof (grub_uint32_t);
|
|
|
|
|
while (i < available_size)
|
|
|
|
|
{
|
|
|
|
|
grub_uint64_t address;
|
|
|
|
|
grub_uint64_t size;
|
|
|
|
|
|
|
|
|
|
address = available[i++];
|
|
|
|
|
if (address_cells == 2)
|
|
|
|
|
address = (address << 32) | available[i++];
|
|
|
|
|
|
|
|
|
|
size = available[i++];
|
|
|
|
|
if (size_cells == 2)
|
|
|
|
|
size = (size << 32) | available[i++];
|
|
|
|
|
|
2013-01-15 12:02:35 +00:00
|
|
|
if (hook (address, size, GRUB_MEMORY_AVAILABLE, hook_data))
|
2008-11-20 20:30:24 +00:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return grub_errno;
|
|
|
|
|
}
|
