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 #define SETUP_DTB 2 16 17 /* extensible setup data list node */ 18 struct setup_data { 19 __u64 next; 20 __u32 type; 21 __u32 len; 22 __u8 data[0]; 23 }; 24 25 struct setup_header { 26 __u8 setup_sects; 27 __u16 root_flags; 28 __u32 syssize; 29 __u16 ram_size; 30 #define RAMDISK_IMAGE_START_MASK 0x07FF 31 #define RAMDISK_PROMPT_FLAG 0x8000 32 #define RAMDISK_LOAD_FLAG 0x4000 33 __u16 vid_mode; 34 __u16 root_dev; 35 __u16 boot_flag; 36 __u16 jump; 37 __u32 header; 38 __u16 version; 39 __u32 realmode_swtch; 40 __u16 start_sys; 41 __u16 kernel_version; 42 __u8 type_of_loader; 43 __u8 loadflags; 44 #define LOADED_HIGH (1<<0) 45 #define QUIET_FLAG (1<<5) 46 #define KEEP_SEGMENTS (1<<6) 47 #define CAN_USE_HEAP (1<<7) 48 __u16 setup_move_size; 49 __u32 code32_start; 50 __u32 ramdisk_image; 51 __u32 ramdisk_size; 52 __u32 bootsect_kludge; 53 __u16 heap_end_ptr; 54 __u8 ext_loader_ver; 55 __u8 ext_loader_type; 56 __u32 cmd_line_ptr; 57 __u32 initrd_addr_max; 58 __u32 kernel_alignment; 59 __u8 relocatable_kernel; 60 __u8 _pad2[3]; 61 __u32 cmdline_size; 62 __u32 hardware_subarch; 63 __u64 hardware_subarch_data; 64 __u32 payload_offset; 65 __u32 payload_length; 66 __u64 setup_data; 67 __u64 pref_address; 68 __u32 init_size; 69 } __attribute__((packed)); 70 71 struct sys_desc_table { 72 __u16 length; 73 __u8 table[14]; 74 }; 75 76 /* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */ 77 struct olpc_ofw_header { 78 __u32 ofw_magic; /* OFW signature */ 79 __u32 ofw_version; 80 __u32 cif_handler; /* callback into OFW */ 81 __u32 irq_desc_table; 82 } __attribute__((packed)); 83 84 struct efi_info { 85 __u32 efi_loader_signature; 86 __u32 efi_systab; 87 __u32 efi_memdesc_size; 88 __u32 efi_memdesc_version; 89 __u32 efi_memmap; 90 __u32 efi_memmap_size; 91 __u32 efi_systab_hi; 92 __u32 efi_memmap_hi; 93 }; 94 95 /* The so-called "zeropage" */ 96 struct boot_params { 97 struct screen_info screen_info; /* 0x000 */ 98 struct apm_bios_info apm_bios_info; /* 0x040 */ 99 __u8 _pad2[4]; /* 0x054 */ 100 __u64 tboot_addr; /* 0x058 */ 101 struct ist_info ist_info; /* 0x060 */ 102 __u8 _pad3[16]; /* 0x070 */ 103 __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */ 104 __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */ 105 struct sys_desc_table sys_desc_table; /* 0x0a0 */ 106 struct olpc_ofw_header olpc_ofw_header; /* 0x0b0 */ 107 __u8 _pad4[128]; /* 0x0c0 */ 108 struct edid_info edid_info; /* 0x140 */ 109 struct efi_info efi_info; /* 0x1c0 */ 110 __u32 alt_mem_k; /* 0x1e0 */ 111 __u32 scratch; /* Scratch field! */ /* 0x1e4 */ 112 __u8 e820_entries; /* 0x1e8 */ 113 __u8 eddbuf_entries; /* 0x1e9 */ 114 __u8 edd_mbr_sig_buf_entries; /* 0x1ea */ 115 __u8 _pad6[6]; /* 0x1eb */ 116 struct setup_header hdr; /* setup header */ /* 0x1f1 */ 117 __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)]; 118 __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ 119 struct e820entry e820_map[E820MAX]; /* 0x2d0 */ 120 __u8 _pad8[48]; /* 0xcd0 */ 121 struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */ 122 __u8 _pad9[276]; /* 0xeec */ 123 } __attribute__((packed)); 124 125 enum { 126 X86_SUBARCH_PC = 0, 127 X86_SUBARCH_LGUEST, 128 X86_SUBARCH_XEN, 129 X86_SUBARCH_MRST, 130 X86_SUBARCH_CE4100, 131 X86_NR_SUBARCHS, 132 }; 133 134 135 136 #endif /* _ASM_X86_BOOTPARAM_H */ 137