1#ifndef _ASM_X86_BOOTPARAM_H 2#define _ASM_X86_BOOTPARAM_H 3 4#include <linux/types.h> 5#include <linux/screen_info.h> 6#include <linux/apm_bios.h> 7#include <linux/edd.h> 8#include <asm/e820.h> 9#include <asm/ist.h> 10#include <video/edid.h> 11 12/* setup data types */ 13#define SETUP_NONE 0 14#define SETUP_E820_EXT 1 15 16/* extensible setup data list node */ 17struct setup_data { 18 __u64 next; 19 __u32 type; 20 __u32 len; 21 __u8 data[0]; 22}; 23 24struct setup_header { 25 __u8 setup_sects; 26 __u16 root_flags; 27 __u32 syssize; 28 __u16 ram_size; 29#define RAMDISK_IMAGE_START_MASK 0x07FF 30#define RAMDISK_PROMPT_FLAG 0x8000 31#define RAMDISK_LOAD_FLAG 0x4000 32 __u16 vid_mode; 33 __u16 root_dev; 34 __u16 boot_flag; 35 __u16 jump; 36 __u32 header; 37 __u16 version; 38 __u32 realmode_swtch; 39 __u16 start_sys; 40 __u16 kernel_version; 41 __u8 type_of_loader; 42 __u8 loadflags; 43#define LOADED_HIGH (1<<0) 44#define QUIET_FLAG (1<<5) 45#define KEEP_SEGMENTS (1<<6) 46#define CAN_USE_HEAP (1<<7) 47 __u16 setup_move_size; 48 __u32 code32_start; 49 __u32 ramdisk_image; 50 __u32 ramdisk_size; 51 __u32 bootsect_kludge; 52 __u16 heap_end_ptr; 53 __u8 ext_loader_ver; 54 __u8 ext_loader_type; 55 __u32 cmd_line_ptr; 56 __u32 initrd_addr_max; 57 __u32 kernel_alignment; 58 __u8 relocatable_kernel; 59 __u8 _pad2[3]; 60 __u32 cmdline_size; 61 __u32 hardware_subarch; 62 __u64 hardware_subarch_data; 63 __u32 payload_offset; 64 __u32 payload_length; 65 __u64 setup_data; 66} __attribute__((packed)); 67 68struct sys_desc_table { 69 __u16 length; 70 __u8 table[14]; 71}; 72 73/* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */ 74struct olpc_ofw_header { 75 __u32 ofw_magic; /* OFW signature */ 76 __u32 ofw_version; 77 __u32 cif_handler; /* callback into OFW */ 78 __u32 irq_desc_table; 79} __attribute__((packed)); 80 81struct efi_info { 82 __u32 efi_loader_signature; 83 __u32 efi_systab; 84 __u32 efi_memdesc_size; 85 __u32 efi_memdesc_version; 86 __u32 efi_memmap; 87 __u32 efi_memmap_size; 88 __u32 efi_systab_hi; 89 __u32 efi_memmap_hi; 90}; 91 92/* The so-called "zeropage" */ 93struct boot_params { 94 struct screen_info screen_info; /* 0x000 */ 95 struct apm_bios_info apm_bios_info; /* 0x040 */ 96 __u8 _pad2[4]; /* 0x054 */ 97 __u64 tboot_addr; /* 0x058 */ 98 struct ist_info ist_info; /* 0x060 */ 99 __u8 _pad3[16]; /* 0x070 */ 100 __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */ 101 __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */ 102 struct sys_desc_table sys_desc_table; /* 0x0a0 */ 103 struct olpc_ofw_header olpc_ofw_header; /* 0x0b0 */ 104 __u8 _pad4[128]; /* 0x0c0 */ 105 struct edid_info edid_info; /* 0x140 */ 106 struct efi_info efi_info; /* 0x1c0 */ 107 __u32 alt_mem_k; /* 0x1e0 */ 108 __u32 scratch; /* Scratch field! */ /* 0x1e4 */ 109 __u8 e820_entries; /* 0x1e8 */ 110 __u8 eddbuf_entries; /* 0x1e9 */ 111 __u8 edd_mbr_sig_buf_entries; /* 0x1ea */ 112 __u8 _pad6[6]; /* 0x1eb */ 113 struct setup_header hdr; /* setup header */ /* 0x1f1 */ 114 __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)]; 115 __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ 116 struct e820entry e820_map[E820MAX]; /* 0x2d0 */ 117 __u8 _pad8[48]; /* 0xcd0 */ 118 struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */ 119 __u8 _pad9[276]; /* 0xeec */ 120} __attribute__((packed)); 121 122enum { 123 X86_SUBARCH_PC = 0, 124 X86_SUBARCH_LGUEST, 125 X86_SUBARCH_XEN, 126 X86_SUBARCH_MRST, 127 X86_NR_SUBARCHS, 128}; 129 130 131 132#endif /* _ASM_X86_BOOTPARAM_H */ 133