1 #ifndef _ASM_X86_BOOTPARAM_H
2 #define _ASM_X86_BOOTPARAM_H
6 #define SETUP_E820_EXT 1
12 #define RAMDISK_IMAGE_START_MASK 0x07FF
13 #define RAMDISK_PROMPT_FLAG 0x8000
14 #define RAMDISK_LOAD_FLAG 0x4000
17 #define LOADED_HIGH (1<<0)
18 #define QUIET_FLAG (1<<5)
19 #define KEEP_SEGMENTS (1<<6)
20 #define CAN_USE_HEAP (1<<7)
23 #define XLF_KERNEL_64 (1<<0)
24 #define XLF_CAN_BE_LOADED_ABOVE_4G (1<<1)
25 #define XLF_EFI_HANDOVER_32 (1<<2)
26 #define XLF_EFI_HANDOVER_64 (1<<3)
27 #define XLF_EFI_KEXEC (1<<4)
31 #include <linux/types.h>
32 #include <linux/screen_info.h>
33 #include <linux/apm_bios.h>
34 #include <linux/edd.h>
37 #include <video/edid.h>
39 /* extensible setup data list node */
63 __u16 setup_move_size
;
67 __u32 bootsect_kludge
;
72 __u32 initrd_addr_max
;
73 __u32 kernel_alignment
;
74 __u8 relocatable_kernel
;
78 __u32 hardware_subarch
;
79 __u64 hardware_subarch_data
;
85 __u32 handover_offset
;
86 } __attribute__((packed
));
88 struct sys_desc_table
{
93 /* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */
94 struct olpc_ofw_header
{
95 __u32 ofw_magic
; /* OFW signature */
97 __u32 cif_handler
; /* callback into OFW */
99 } __attribute__((packed
));
102 __u32 efi_loader_signature
;
104 __u32 efi_memdesc_size
;
105 __u32 efi_memdesc_version
;
107 __u32 efi_memmap_size
;
112 /* The so-called "zeropage" */
114 struct screen_info screen_info
; /* 0x000 */
115 struct apm_bios_info apm_bios_info
; /* 0x040 */
116 __u8 _pad2
[4]; /* 0x054 */
117 __u64 tboot_addr
; /* 0x058 */
118 struct ist_info ist_info
; /* 0x060 */
119 __u8 _pad3
[16]; /* 0x070 */
120 __u8 hd0_info
[16]; /* obsolete! */ /* 0x080 */
121 __u8 hd1_info
[16]; /* obsolete! */ /* 0x090 */
122 struct sys_desc_table sys_desc_table
; /* 0x0a0 */
123 struct olpc_ofw_header olpc_ofw_header
; /* 0x0b0 */
124 __u32 ext_ramdisk_image
; /* 0x0c0 */
125 __u32 ext_ramdisk_size
; /* 0x0c4 */
126 __u32 ext_cmd_line_ptr
; /* 0x0c8 */
127 __u8 _pad4
[116]; /* 0x0cc */
128 struct edid_info edid_info
; /* 0x140 */
129 struct efi_info efi_info
; /* 0x1c0 */
130 __u32 alt_mem_k
; /* 0x1e0 */
131 __u32 scratch
; /* Scratch field! */ /* 0x1e4 */
132 __u8 e820_entries
; /* 0x1e8 */
133 __u8 eddbuf_entries
; /* 0x1e9 */
134 __u8 edd_mbr_sig_buf_entries
; /* 0x1ea */
135 __u8 kbd_status
; /* 0x1eb */
136 __u8 _pad5
[3]; /* 0x1ec */
138 * The sentinel is set to a nonzero value (0xff) in header.S.
140 * A bootloader is supposed to only take setup_header and put
141 * it into a clean boot_params buffer. If it turns out that
142 * it is clumsy or too generous with the buffer, it most
143 * probably will pick up the sentinel variable too. The fact
144 * that this variable then is still 0xff will let kernel
145 * know that some variables in boot_params are invalid and
146 * kernel should zero out certain portions of boot_params.
148 __u8 sentinel
; /* 0x1ef */
149 __u8 _pad6
[1]; /* 0x1f0 */
150 struct setup_header hdr
; /* setup header */ /* 0x1f1 */
151 __u8 _pad7
[0x290-0x1f1-sizeof(struct setup_header
)];
152 __u32 edd_mbr_sig_buffer
[EDD_MBR_SIG_MAX
]; /* 0x290 */
153 struct e820entry e820_map
[E820MAX
]; /* 0x2d0 */
154 __u8 _pad8
[48]; /* 0xcd0 */
155 struct edd_info eddbuf
[EDDMAXNR
]; /* 0xd00 */
156 __u8 _pad9
[276]; /* 0xeec */
157 } __attribute__((packed
));
163 X86_SUBARCH_INTEL_MID
,
168 #endif /* __ASSEMBLY__ */
170 #endif /* _ASM_X86_BOOTPARAM_H */