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_common
  32 {
  33   /* Command line passed to xnu. */
  34   grub_uint8_t cmdline[1024];
  35
  36   /* Later are the same as EFI's get_memory_map (). */
  37   grub_xnu_ptr_t efi_mmap;
  38   grub_uint32_t efi_mmap_size;
  39   grub_uint32_t efi_mem_desc_size;
  40   grub_uint32_t efi_mem_desc_version;
  41
  42   /* Later are video parameters. */
  43   grub_xnu_ptr_t lfb_base;
  44 #define GRUB_XNU_VIDEO_SPLASH 1
  45 #define GRUB_XNU_VIDEO_TEXT_IN_VIDEO 2
  46   grub_uint32_t lfb_mode;
  47   grub_uint32_t lfb_line_len;
  48   grub_uint32_t lfb_width;
  49   grub_uint32_t lfb_height;
  50   grub_uint32_t lfb_depth;
  51
  52   /* Pointer to device tree and its len. */
  53   grub_xnu_ptr_t devtree;
  54   grub_uint32_t devtreelen;
  55
  56   /* First used address by kernel or boot structures. */
  57   grub_xnu_ptr_t heap_start;
  58   /* Last used address by kernel or boot structures minus previous value. */
  59   grub_uint32_t heap_size;
  60   /* First memory page containing runtime code or data. */
  61   grub_uint32_t efi_runtime_first_page;
  62   /* First memory page containing runtime code or data minus previous value. */
  63   grub_uint32_t efi_runtime_npages;
  64 } GRUB_PACKED;
  65
  66 struct grub_xnu_boot_params_v1
  67 {
  68   grub_uint16_t verminor;
  69   grub_uint16_t vermajor;
  70   struct grub_xnu_boot_params_common common;
  71
  72   grub_uint32_t efi_system_table;
  73   /* Size of grub_efi_uintn_t in bits. */
  74   grub_uint8_t efi_uintnbits;
  75 } GRUB_PACKED;
  76 #define GRUB_XNU_BOOTARGSV1_VERMINOR 5
  77 #define GRUB_XNU_BOOTARGSV1_VERMAJOR 1
  78
  79 struct grub_xnu_boot_params_v2
  80 {
  81   grub_uint16_t verminor;
  82   grub_uint16_t vermajor;
  83
  84   /* Size of grub_efi_uintn_t in bits. */
  85   grub_uint8_t efi_uintnbits;
  86   grub_uint8_t unused[3];
  87
  88   struct grub_xnu_boot_params_common common;
  89
  90   grub_uint64_t efi_runtime_first_page_virtual;
  91   grub_uint32_t efi_system_table;
  92   grub_uint32_t unused2[9];
  93   grub_uint64_t ram_size;
  94   grub_uint64_t fsbfreq;
  95   grub_uint32_t unused3[734];
  96 } GRUB_PACKED;
  97 #define GRUB_XNU_BOOTARGSV2_VERMINOR 0
  98 #define GRUB_XNU_BOOTARGSV2_VERMAJOR 2
  99
 100 union grub_xnu_boot_params_any
 101 {
 102   struct grub_xnu_boot_params_v1 v1;
 103   struct grub_xnu_boot_params_v2 v2;
 104 };
 105
 106 struct grub_xnu_devprop_header
 107 {
 108   grub_uint32_t length;
 109   /* Always set to 1. Version?  */
 110   grub_uint32_t alwaysone;
 111   grub_uint32_t num_devices;
 112 };
 113
 114 struct grub_xnu_devprop_device_header
 115 {
 116   grub_uint32_t length;
 117   grub_uint32_t num_values;
 118 };
 119
 120 void grub_cpu_xnu_unload (void);
 121
 122 struct grub_xnu_devprop_device_descriptor;
 123
 124 struct grub_xnu_devprop_device_descriptor *
 125 grub_xnu_devprop_add_device (struct grub_efi_device_path *path, int length);
 126 grub_err_t
 127 grub_xnu_devprop_remove_device (struct grub_xnu_devprop_device_descriptor *dev);
 128 grub_err_t
 129 grub_xnu_devprop_remove_property (struct grub_xnu_devprop_device_descriptor *dev,
 130                                   char *name);
 131 grub_err_t
 132 grub_xnu_devprop_add_property_utf8 (struct grub_xnu_devprop_device_descriptor *dev,
 133                                     char *name, void *data, int datalen);
 134 grub_err_t
 135 grub_xnu_devprop_add_property_utf16 (struct grub_xnu_devprop_device_descriptor *dev,
 136                                      grub_uint16_t *name, int namelen,
 137                                      void *data, int datalen);
 138 grub_err_t
 139 grub_xnu_devprop_remove_property_utf8 (struct grub_xnu_devprop_device_descriptor *dev,
 140                                        char *name);
 141 void grub_cpu_xnu_init (void);
 142 void grub_cpu_xnu_fini (void);
 143
 144 extern grub_uint32_t grub_xnu_entry_point;
 145 extern grub_uint32_t grub_xnu_stack;
 146 extern grub_uint32_t grub_xnu_arg1;
 147 extern char grub_xnu_cmdline[1024];
 148 grub_err_t grub_xnu_boot (void);
 149 #endif