68 lines
2 KiB
C
68 lines
2 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/machine/init.h>
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#include <grub/machine/memory.h>
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#include <grub/err.h>
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#include <grub/types.h>
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#include <grub/misc.h>
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grub_err_t
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grub_machine_mmap_iterate (int NESTED_FUNC_ATTR (*hook) (grub_uint64_t, grub_uint64_t, grub_uint32_t))
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{
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grub_uint32_t cont;
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struct grub_machine_mmap_entry *entry
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= (struct grub_machine_mmap_entry *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
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grub_memset (entry, 0, sizeof (entry));
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/* Check if grub_get_mmap_entry works. */
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cont = grub_get_mmap_entry (entry, 0);
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if (entry->size)
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do
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{
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if (hook (entry->addr, entry->len,
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/* Multiboot mmaps have been defined to match with the E820 definition.
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Therefore, we can just pass type through. */
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entry->type))
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break;
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if (! cont)
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break;
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grub_memset (entry, 0, sizeof (entry));
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cont = grub_get_mmap_entry (entry, cont);
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}
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while (entry->size);
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else
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{
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grub_uint32_t eisa_mmap = grub_get_eisa_mmap ();
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if (eisa_mmap)
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{
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if (hook (0x100000, (eisa_mmap & 0xFFFF) << 10, GRUB_MACHINE_MEMORY_AVAILABLE) == 0)
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hook (0x1000000, eisa_mmap & ~0xFFFF, GRUB_MACHINE_MEMORY_AVAILABLE);
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}
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else
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hook (0x100000, grub_get_memsize (1) << 10, GRUB_MACHINE_MEMORY_AVAILABLE);
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}
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return 0;
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}
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