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Graeme Russ1bab1042010-04-24 00:05:49 +10001#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 <asm/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;
Stefan Roese58e41cc2016-09-30 09:15:59 +020066 __u64 pref_address;
67 __u32 init_size;
68 __u32 handover_offset;
Andy Shevchenko66d3e632018-01-10 19:40:15 +020069 __u64 acpi_rsdp_addr;
Graeme Russ1bab1042010-04-24 00:05:49 +100070} __attribute__((packed));
71
72struct sys_desc_table {
73 __u16 length;
74 __u8 table[14];
75};
76
77struct 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
88/* The so-called "zeropage" */
89struct boot_params {
90 struct screen_info screen_info; /* 0x000 */
91 struct apm_bios_info apm_bios_info; /* 0x040 */
92 __u8 _pad2[4]; /* 0x054 */
93 __u64 tboot_addr; /* 0x058 */
94 struct ist_info ist_info; /* 0x060 */
95 __u8 _pad3[16]; /* 0x070 */
96 __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */
97 __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */
98 struct sys_desc_table sys_desc_table; /* 0x0a0 */
99 __u8 _pad4[144]; /* 0x0b0 */
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
117enum {
118 X86_SUBARCH_PC = 0,
119 X86_SUBARCH_LGUEST,
120 X86_SUBARCH_XEN,
Andy Shevchenko7c7a0782017-01-08 23:51:04 +0300121 X86_SUBARCH_INTEL_MID,
122 X86_SUBARCH_CE4100,
Graeme Russ1bab1042010-04-24 00:05:49 +1000123 X86_NR_SUBARCHS,
124};
Graeme Russ1bab1042010-04-24 00:05:49 +1000125#endif /* _ASM_X86_BOOTPARAM_H */