grub-core/include/grub/i386/xnu.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2009  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef GRUB_CPU_XNU_H
  20 #define GRUB_CPU_XNU_H 1
  21
  22 #include <grub/err.h>
  23 #include <grub/efi/api.h>
  24 #include <grub/cpu/relocator.h>
  25
  26 #define XNU_RELOCATOR(x) (grub_relocator32_ ## x)
  27
  28 #define GRUB_XNU_PAGESIZE 4096
  29 typedef grub_uint32_t grub_xnu_ptr_t;
  30
  31 struct grub_xnu_boot_params
  32 {
  33   grub_uint16_t verminor;
  34   grub_uint16_t vermajor;
  35   /* Command line passed to xnu. */
  36   grub_uint8_t cmdline[1024];
  37
  38   /* Later are the same as EFI's get_memory_map (). */
  39   grub_xnu_ptr_t efi_mmap;
  40   grub_uint32_t efi_mmap_size;
  41   grub_uint32_t efi_mem_desc_size;
  42   grub_uint32_t efi_mem_desc_version;
  43
  44   /* Later are video parameters. */
  45   grub_xnu_ptr_t lfb_base;
  46 #define GRUB_XNU_VIDEO_SPLASH 1
  47 #define GRUB_XNU_VIDEO_TEXT_IN_VIDEO 2
  48   grub_uint32_t lfb_mode;
  49   grub_uint32_t lfb_line_len;
  50   grub_uint32_t lfb_width;
  51   grub_uint32_t lfb_height;
  52   grub_uint32_t lfb_depth;
  53
  54   /* Pointer to device tree and its len. */
  55   grub_xnu_ptr_t devtree;
  56   grub_uint32_t devtreelen;
  57
  58   /* First used address by kernel or boot structures. */
  59   grub_xnu_ptr_t heap_start;
  60   /* Last used address by kernel or boot structures minus previous value. */
  61   grub_uint32_t heap_size;
  62
  63   /* First memory page containing runtime code or data. */
  64   grub_uint32_t efi_runtime_first_page;
  65   /* First memory page containing runtime code or data minus previous value. */
  66   grub_uint32_t efi_runtime_npages;
  67   grub_uint32_t efi_system_table;
  68   /* Size of grub_efi_uintn_t in bits. */
  69   grub_uint8_t efi_uintnbits;
  70 } __attribute__ ((packed));
  71 #define GRUB_XNU_BOOTARGS_VERMINOR 5
  72 #define GRUB_XNU_BOOTARGS_VERMAJOR 1
  73
  74 struct grub_xnu_devprop_header
  75 {
  76   grub_uint32_t length;
  77   /* Always set to 1. Version?  */
  78   grub_uint32_t alwaysone;
  79   grub_uint32_t num_devices;
  80 };
  81
  82 struct grub_xnu_devprop_device_header
  83 {
  84   grub_uint32_t length;
  85   grub_uint32_t num_values;
  86 };
  87
  88 void grub_cpu_xnu_unload (void);
  89
  90 struct grub_xnu_devprop_device_descriptor;
  91
  92 struct grub_xnu_devprop_device_descriptor *
  93 grub_xnu_devprop_add_device (struct grub_efi_device_path *path, int length);
  94 grub_err_t
  95 grub_xnu_devprop_remove_device (struct grub_xnu_devprop_device_descriptor *dev);
  96 grub_err_t
  97 grub_xnu_devprop_remove_property (struct grub_xnu_devprop_device_descriptor *dev,
  98                                   char *name);
  99 grub_err_t
 100 grub_xnu_devprop_add_property_utf8 (struct grub_xnu_devprop_device_descriptor *dev,
 101                                     char *name, void *data, int datalen);
 102 grub_err_t
 103 grub_xnu_devprop_add_property_utf16 (struct grub_xnu_devprop_device_descriptor *dev,
 104                                      grub_uint16_t *name, int namelen,
 105                                      void *data, int datalen);
 106 grub_err_t
 107 grub_xnu_devprop_remove_property_utf8 (struct grub_xnu_devprop_device_descriptor *dev,
 108                                        char *name);
 109 void grub_cpu_xnu_init (void);
 110 void grub_cpu_xnu_fini (void);
 111
 112 extern grub_uint32_t grub_xnu_entry_point;
 113 extern grub_uint32_t grub_xnu_stack;
 114 extern grub_uint32_t grub_xnu_arg1;
 115 extern char grub_xnu_cmdline[1024];
 116 grub_err_t grub_xnu_boot (void);
 117 grub_err_t grub_cpu_xnu_fill_devicetree (void);
 118 extern grub_uint32_t grub_xnu_heap_will_be_at;
 119 #endif