1*fea25720SGraeme Russ #ifndef _ASM_X86_BOOTPARAM_H 2*fea25720SGraeme Russ #define _ASM_X86_BOOTPARAM_H 3*fea25720SGraeme Russ 4*fea25720SGraeme Russ #include <linux/types.h> 5*fea25720SGraeme Russ #include <linux/screen_info.h> 6*fea25720SGraeme Russ #include <linux/apm_bios.h> 7*fea25720SGraeme Russ #include <linux/edd.h> 8*fea25720SGraeme Russ #include <asm/e820.h> 9*fea25720SGraeme Russ #include <asm/ist.h> 10*fea25720SGraeme Russ #include <asm/video/edid.h> 11*fea25720SGraeme Russ 12*fea25720SGraeme Russ /* setup data types */ 13*fea25720SGraeme Russ #define SETUP_NONE 0 14*fea25720SGraeme Russ #define SETUP_E820_EXT 1 15*fea25720SGraeme Russ 16*fea25720SGraeme Russ /* extensible setup data list node */ 17*fea25720SGraeme Russ struct setup_data { 18*fea25720SGraeme Russ __u64 next; 19*fea25720SGraeme Russ __u32 type; 20*fea25720SGraeme Russ __u32 len; 21*fea25720SGraeme Russ __u8 data[0]; 22*fea25720SGraeme Russ }; 23*fea25720SGraeme Russ 24*fea25720SGraeme Russ struct setup_header { 25*fea25720SGraeme Russ __u8 setup_sects; 26*fea25720SGraeme Russ __u16 root_flags; 27*fea25720SGraeme Russ __u32 syssize; 28*fea25720SGraeme Russ __u16 ram_size; 29*fea25720SGraeme Russ #define RAMDISK_IMAGE_START_MASK 0x07FF 30*fea25720SGraeme Russ #define RAMDISK_PROMPT_FLAG 0x8000 31*fea25720SGraeme Russ #define RAMDISK_LOAD_FLAG 0x4000 32*fea25720SGraeme Russ __u16 vid_mode; 33*fea25720SGraeme Russ __u16 root_dev; 34*fea25720SGraeme Russ __u16 boot_flag; 35*fea25720SGraeme Russ __u16 jump; 36*fea25720SGraeme Russ __u32 header; 37*fea25720SGraeme Russ __u16 version; 38*fea25720SGraeme Russ __u32 realmode_swtch; 39*fea25720SGraeme Russ __u16 start_sys; 40*fea25720SGraeme Russ __u16 kernel_version; 41*fea25720SGraeme Russ __u8 type_of_loader; 42*fea25720SGraeme Russ __u8 loadflags; 43*fea25720SGraeme Russ #define LOADED_HIGH (1<<0) 44*fea25720SGraeme Russ #define QUIET_FLAG (1<<5) 45*fea25720SGraeme Russ #define KEEP_SEGMENTS (1<<6) 46*fea25720SGraeme Russ #define CAN_USE_HEAP (1<<7) 47*fea25720SGraeme Russ __u16 setup_move_size; 48*fea25720SGraeme Russ __u32 code32_start; 49*fea25720SGraeme Russ __u32 ramdisk_image; 50*fea25720SGraeme Russ __u32 ramdisk_size; 51*fea25720SGraeme Russ __u32 bootsect_kludge; 52*fea25720SGraeme Russ __u16 heap_end_ptr; 53*fea25720SGraeme Russ __u8 ext_loader_ver; 54*fea25720SGraeme Russ __u8 ext_loader_type; 55*fea25720SGraeme Russ __u32 cmd_line_ptr; 56*fea25720SGraeme Russ __u32 initrd_addr_max; 57*fea25720SGraeme Russ __u32 kernel_alignment; 58*fea25720SGraeme Russ __u8 relocatable_kernel; 59*fea25720SGraeme Russ __u8 _pad2[3]; 60*fea25720SGraeme Russ __u32 cmdline_size; 61*fea25720SGraeme Russ __u32 hardware_subarch; 62*fea25720SGraeme Russ __u64 hardware_subarch_data; 63*fea25720SGraeme Russ __u32 payload_offset; 64*fea25720SGraeme Russ __u32 payload_length; 65*fea25720SGraeme Russ __u64 setup_data; 66*fea25720SGraeme Russ } __attribute__((packed)); 67*fea25720SGraeme Russ 68*fea25720SGraeme Russ struct sys_desc_table { 69*fea25720SGraeme Russ __u16 length; 70*fea25720SGraeme Russ __u8 table[14]; 71*fea25720SGraeme Russ }; 72*fea25720SGraeme Russ 73*fea25720SGraeme Russ struct efi_info { 74*fea25720SGraeme Russ __u32 efi_loader_signature; 75*fea25720SGraeme Russ __u32 efi_systab; 76*fea25720SGraeme Russ __u32 efi_memdesc_size; 77*fea25720SGraeme Russ __u32 efi_memdesc_version; 78*fea25720SGraeme Russ __u32 efi_memmap; 79*fea25720SGraeme Russ __u32 efi_memmap_size; 80*fea25720SGraeme Russ __u32 efi_systab_hi; 81*fea25720SGraeme Russ __u32 efi_memmap_hi; 82*fea25720SGraeme Russ }; 83*fea25720SGraeme Russ 84*fea25720SGraeme Russ /* The so-called "zeropage" */ 85*fea25720SGraeme Russ struct boot_params { 86*fea25720SGraeme Russ struct screen_info screen_info; /* 0x000 */ 87*fea25720SGraeme Russ struct apm_bios_info apm_bios_info; /* 0x040 */ 88*fea25720SGraeme Russ __u8 _pad2[4]; /* 0x054 */ 89*fea25720SGraeme Russ __u64 tboot_addr; /* 0x058 */ 90*fea25720SGraeme Russ struct ist_info ist_info; /* 0x060 */ 91*fea25720SGraeme Russ __u8 _pad3[16]; /* 0x070 */ 92*fea25720SGraeme Russ __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */ 93*fea25720SGraeme Russ __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */ 94*fea25720SGraeme Russ struct sys_desc_table sys_desc_table; /* 0x0a0 */ 95*fea25720SGraeme Russ __u8 _pad4[144]; /* 0x0b0 */ 96*fea25720SGraeme Russ struct edid_info edid_info; /* 0x140 */ 97*fea25720SGraeme Russ struct efi_info efi_info; /* 0x1c0 */ 98*fea25720SGraeme Russ __u32 alt_mem_k; /* 0x1e0 */ 99*fea25720SGraeme Russ __u32 scratch; /* Scratch field! */ /* 0x1e4 */ 100*fea25720SGraeme Russ __u8 e820_entries; /* 0x1e8 */ 101*fea25720SGraeme Russ __u8 eddbuf_entries; /* 0x1e9 */ 102*fea25720SGraeme Russ __u8 edd_mbr_sig_buf_entries; /* 0x1ea */ 103*fea25720SGraeme Russ __u8 _pad6[6]; /* 0x1eb */ 104*fea25720SGraeme Russ struct setup_header hdr; /* setup header */ /* 0x1f1 */ 105*fea25720SGraeme Russ __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)]; 106*fea25720SGraeme Russ __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ 107*fea25720SGraeme Russ struct e820entry e820_map[E820MAX]; /* 0x2d0 */ 108*fea25720SGraeme Russ __u8 _pad8[48]; /* 0xcd0 */ 109*fea25720SGraeme Russ struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */ 110*fea25720SGraeme Russ __u8 _pad9[276]; /* 0xeec */ 111*fea25720SGraeme Russ } __attribute__((packed)); 112*fea25720SGraeme Russ 113*fea25720SGraeme Russ enum { 114*fea25720SGraeme Russ X86_SUBARCH_PC = 0, 115*fea25720SGraeme Russ X86_SUBARCH_LGUEST, 116*fea25720SGraeme Russ X86_SUBARCH_XEN, 117*fea25720SGraeme Russ X86_SUBARCH_MRST, 118*fea25720SGraeme Russ X86_NR_SUBARCHS, 119*fea25720SGraeme Russ }; 120*fea25720SGraeme Russ #endif /* _ASM_X86_BOOTPARAM_H */ 121