85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/* memory.h - describe the memory map */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2007,2008 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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#ifndef GRUB_MEMORY_HEADER
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#define GRUB_MEMORY_HEADER 1
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#include <grub/types.h>
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#include <grub/err.h>
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typedef enum grub_memory_type
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{
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GRUB_MEMORY_AVAILABLE = 1,
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GRUB_MEMORY_RESERVED = 2,
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GRUB_MEMORY_ACPI = 3,
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GRUB_MEMORY_NVS = 4,
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GRUB_MEMORY_BADRAM = 5,
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GRUB_MEMORY_COREBOOT_TABLES = 16,
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GRUB_MEMORY_CODE = 20,
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/* This one is special: it's used internally but is never reported
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by firmware. Don't use -1 as it's used internally for other purposes. */
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GRUB_MEMORY_HOLE = -2,
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GRUB_MEMORY_MAX = 0x10000
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} grub_memory_type_t;
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typedef int (*grub_memory_hook_t) (grub_uint64_t,
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grub_uint64_t,
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grub_memory_type_t,
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void *);
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grub_err_t grub_mmap_iterate (grub_memory_hook_t hook, void *hook_data);
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#ifdef GRUB_MACHINE_EFI
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grub_err_t
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grub_efi_mmap_iterate (grub_memory_hook_t hook, void *hook_data,
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int avoid_efi_boot_services);
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#endif
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#if !defined (GRUB_MACHINE_EMU) && !defined (GRUB_MACHINE_EFI)
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grub_err_t EXPORT_FUNC(grub_machine_mmap_iterate) (grub_memory_hook_t hook,
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void *hook_data);
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#else
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grub_err_t grub_machine_mmap_iterate (grub_memory_hook_t hook,
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void *hook_data);
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#endif
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int grub_mmap_register (grub_uint64_t start, grub_uint64_t size, int type);
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grub_err_t grub_mmap_unregister (int handle);
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void *grub_mmap_malign_and_register (grub_uint64_t align, grub_uint64_t size,
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int *handle, int type, int flags);
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void grub_mmap_free_and_unregister (int handle);
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#ifndef GRUB_MMAP_REGISTER_BY_FIRMWARE
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struct grub_mmap_region
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{
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struct grub_mmap_region *next;
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grub_uint64_t start;
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grub_uint64_t end;
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grub_memory_type_t type;
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int handle;
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int priority;
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};
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extern struct grub_mmap_region *grub_mmap_overlays;
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#endif
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#endif /* ! GRUB_MEMORY_HEADER */
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