bootparam.h 3.3 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137
  1. #ifndef _ASM_X86_BOOTPARAM_H
  2. #define _ASM_X86_BOOTPARAM_H
  3. #include <linux/types.h>
  4. #include <linux/screen_info.h>
  5. #include <linux/apm_bios.h>
  6. #include <linux/edd.h>
  7. #include <asm/e820.h>
  8. #include <asm/ist.h>
  9. #include <video/edid.h>
  10. /* setup data types */
  11. #define SETUP_NONE 0
  12. #define SETUP_E820_EXT 1
  13. #define SETUP_DTB 2
  14. /* extensible setup data list node */
  15. struct setup_data {
  16. __u64 next;
  17. __u32 type;
  18. __u32 len;
  19. __u8 data[0];
  20. };
  21. struct setup_header {
  22. __u8 setup_sects;
  23. __u16 root_flags;
  24. __u32 syssize;
  25. __u16 ram_size;
  26. #define RAMDISK_IMAGE_START_MASK 0x07FF
  27. #define RAMDISK_PROMPT_FLAG 0x8000
  28. #define RAMDISK_LOAD_FLAG 0x4000
  29. __u16 vid_mode;
  30. __u16 root_dev;
  31. __u16 boot_flag;
  32. __u16 jump;
  33. __u32 header;
  34. __u16 version;
  35. __u32 realmode_swtch;
  36. __u16 start_sys;
  37. __u16 kernel_version;
  38. __u8 type_of_loader;
  39. __u8 loadflags;
  40. #define LOADED_HIGH (1<<0)
  41. #define QUIET_FLAG (1<<5)
  42. #define KEEP_SEGMENTS (1<<6)
  43. #define CAN_USE_HEAP (1<<7)
  44. __u16 setup_move_size;
  45. __u32 code32_start;
  46. __u32 ramdisk_image;
  47. __u32 ramdisk_size;
  48. __u32 bootsect_kludge;
  49. __u16 heap_end_ptr;
  50. __u8 ext_loader_ver;
  51. __u8 ext_loader_type;
  52. __u32 cmd_line_ptr;
  53. __u32 initrd_addr_max;
  54. __u32 kernel_alignment;
  55. __u8 relocatable_kernel;
  56. __u8 _pad2[3];
  57. __u32 cmdline_size;
  58. __u32 hardware_subarch;
  59. __u64 hardware_subarch_data;
  60. __u32 payload_offset;
  61. __u32 payload_length;
  62. __u64 setup_data;
  63. __u64 pref_address;
  64. __u32 init_size;
  65. } __attribute__((packed));
  66. struct sys_desc_table {
  67. __u16 length;
  68. __u8 table[14];
  69. };
  70. /* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */
  71. struct olpc_ofw_header {
  72. __u32 ofw_magic; /* OFW signature */
  73. __u32 ofw_version;
  74. __u32 cif_handler; /* callback into OFW */
  75. __u32 irq_desc_table;
  76. } __attribute__((packed));
  77. struct efi_info {
  78. __u32 efi_loader_signature;
  79. __u32 efi_systab;
  80. __u32 efi_memdesc_size;
  81. __u32 efi_memdesc_version;
  82. __u32 efi_memmap;
  83. __u32 efi_memmap_size;
  84. __u32 efi_systab_hi;
  85. __u32 efi_memmap_hi;
  86. };
  87. /* The so-called "zeropage" */
  88. struct boot_params {
  89. struct screen_info screen_info; /* 0x000 */
  90. struct apm_bios_info apm_bios_info; /* 0x040 */
  91. __u8 _pad2[4]; /* 0x054 */
  92. __u64 tboot_addr; /* 0x058 */
  93. struct ist_info ist_info; /* 0x060 */
  94. __u8 _pad3[16]; /* 0x070 */
  95. __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */
  96. __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */
  97. struct sys_desc_table sys_desc_table; /* 0x0a0 */
  98. struct olpc_ofw_header olpc_ofw_header; /* 0x0b0 */
  99. __u8 _pad4[128]; /* 0x0c0 */
  100. struct edid_info edid_info; /* 0x140 */
  101. struct efi_info efi_info; /* 0x1c0 */
  102. __u32 alt_mem_k; /* 0x1e0 */
  103. __u32 scratch; /* Scratch field! */ /* 0x1e4 */
  104. __u8 e820_entries; /* 0x1e8 */
  105. __u8 eddbuf_entries; /* 0x1e9 */
  106. __u8 edd_mbr_sig_buf_entries; /* 0x1ea */
  107. __u8 _pad6[6]; /* 0x1eb */
  108. struct setup_header hdr; /* setup header */ /* 0x1f1 */
  109. __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)];
  110. __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
  111. struct e820entry e820_map[E820MAX]; /* 0x2d0 */
  112. __u8 _pad8[48]; /* 0xcd0 */
  113. struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */
  114. __u8 _pad9[276]; /* 0xeec */
  115. } __attribute__((packed));
  116. enum {
  117. X86_SUBARCH_PC = 0,
  118. X86_SUBARCH_LGUEST,
  119. X86_SUBARCH_XEN,
  120. X86_SUBARCH_MRST,
  121. X86_SUBARCH_CE4100,
  122. X86_NR_SUBARCHS,
  123. };
  124. #endif /* _ASM_X86_BOOTPARAM_H */