arch/all-pc/boot/grub2-aros/include/grub/memory.h

   1 /* memory.h - describe the memory map */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2002,2007,2008  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef GRUB_MEMORY_HEADER
  21 #define GRUB_MEMORY_HEADER      1
  22
  23 #include <grub/types.h>
  24 #include <grub/err.h>
  25
  26 typedef enum grub_memory_type
  27   {
  28     GRUB_MEMORY_AVAILABLE = 1,
  29     GRUB_MEMORY_RESERVED = 2,
  30     GRUB_MEMORY_ACPI = 3,
  31     GRUB_MEMORY_NVS = 4,
  32     GRUB_MEMORY_BADRAM = 5,
  33     GRUB_MEMORY_CODE = 20,
  34     /* This one is special: it's used internally but is never reported
  35        by firmware. */
  36     GRUB_MEMORY_HOLE = 21
  37   } grub_memory_type_t;
  38
  39 typedef int NESTED_FUNC_ATTR (*grub_memory_hook_t) (grub_uint64_t,
  40                                                     grub_uint64_t,
  41                                                     grub_memory_type_t);
  42
  43 grub_err_t grub_mmap_iterate (grub_memory_hook_t hook);
  44
  45 #if !defined (GRUB_MACHINE_EMU) && !defined (GRUB_MACHINE_EFI)
  46 grub_err_t EXPORT_FUNC(grub_machine_mmap_iterate) (grub_memory_hook_t hook);
  47 #else
  48 grub_err_t grub_machine_mmap_iterate (grub_memory_hook_t hook);
  49 #endif
  50
  51 int grub_mmap_register (grub_uint64_t start, grub_uint64_t size, int type);
  52 grub_err_t grub_mmap_unregister (int handle);
  53
  54 void *grub_mmap_malign_and_register (grub_uint64_t align, grub_uint64_t size,
  55                                      int *handle, int type, int flags);
  56
  57 void grub_mmap_free_and_unregister (int handle);
  58
  59 #ifndef GRUB_MMAP_REGISTER_BY_FIRMWARE
  60
  61 struct grub_mmap_region
  62 {
  63   struct grub_mmap_region *next;
  64   grub_uint64_t start;
  65   grub_uint64_t end;
  66   grub_memory_type_t type;
  67   int handle;
  68 };
  69
  70 extern struct grub_mmap_region *grub_mmap_overlays;
  71 #endif
  72
  73 #endif /* ! GRUB_MEMORY_HEADER */