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1965aae3 PA |
1 | #ifndef _ASM_X86_BOOTPARAM_H |
2 | #define _ASM_X86_BOOTPARAM_H | |
48c7ae67 | 3 | |
09c205af PA |
4 | /* setup_data types */ |
5 | #define SETUP_NONE 0 | |
6 | #define SETUP_E820_EXT 1 | |
7 | #define SETUP_DTB 2 | |
8 | #define SETUP_PCI 3 | |
9 | ||
10 | /* ram_size flags */ | |
11 | #define RAMDISK_IMAGE_START_MASK 0x07FF | |
12 | #define RAMDISK_PROMPT_FLAG 0x8000 | |
13 | #define RAMDISK_LOAD_FLAG 0x4000 | |
14 | ||
15 | /* loadflags */ | |
16 | #define LOADED_HIGH (1<<0) | |
17 | #define QUIET_FLAG (1<<5) | |
18 | #define KEEP_SEGMENTS (1<<6) | |
19 | #define CAN_USE_HEAP (1<<7) | |
20 | ||
21 | /* xloadflags */ | |
22 | #define XLF_KERNEL_64 (1<<0) | |
23 | #define XLF_CAN_BE_LOADED_ABOVE_4G (1<<1) | |
24 | #define XLF_EFI_HANDOVER_32 (1<<2) | |
25 | #define XLF_EFI_HANDOVER_64 (1<<3) | |
26 | ||
27 | #ifndef __ASSEMBLY__ | |
28 | ||
48c7ae67 PA |
29 | #include <linux/types.h> |
30 | #include <linux/screen_info.h> | |
31 | #include <linux/apm_bios.h> | |
48c7ae67 | 32 | #include <linux/edd.h> |
238b706d PA |
33 | #include <asm/e820.h> |
34 | #include <asm/ist.h> | |
48c7ae67 PA |
35 | #include <video/edid.h> |
36 | ||
8b664aa6 HY |
37 | /* extensible setup data list node */ |
38 | struct setup_data { | |
afaafe50 RR |
39 | __u64 next; |
40 | __u32 type; | |
41 | __u32 len; | |
42 | __u8 data[0]; | |
8b664aa6 HY |
43 | }; |
44 | ||
48c7ae67 | 45 | struct setup_header { |
ee8e7cfe RR |
46 | __u8 setup_sects; |
47 | __u16 root_flags; | |
48 | __u32 syssize; | |
49 | __u16 ram_size; | |
ee8e7cfe RR |
50 | __u16 vid_mode; |
51 | __u16 root_dev; | |
52 | __u16 boot_flag; | |
53 | __u16 jump; | |
54 | __u32 header; | |
55 | __u16 version; | |
56 | __u32 realmode_swtch; | |
57 | __u16 start_sys; | |
58 | __u16 kernel_version; | |
59 | __u8 type_of_loader; | |
60 | __u8 loadflags; | |
ee8e7cfe RR |
61 | __u16 setup_move_size; |
62 | __u32 code32_start; | |
63 | __u32 ramdisk_image; | |
64 | __u32 ramdisk_size; | |
65 | __u32 bootsect_kludge; | |
66 | __u16 heap_end_ptr; | |
5031296c PA |
67 | __u8 ext_loader_ver; |
68 | __u8 ext_loader_type; | |
ee8e7cfe RR |
69 | __u32 cmd_line_ptr; |
70 | __u32 initrd_addr_max; | |
71 | __u32 kernel_alignment; | |
72 | __u8 relocatable_kernel; | |
09c205af PA |
73 | __u8 min_alignment; |
74 | __u16 xloadflags; | |
ee8e7cfe RR |
75 | __u32 cmdline_size; |
76 | __u32 hardware_subarch; | |
77 | __u64 hardware_subarch_data; | |
8b664aa6 HY |
78 | __u32 payload_offset; |
79 | __u32 payload_length; | |
80 | __u64 setup_data; | |
8af21e7e MF |
81 | __u64 pref_address; |
82 | __u32 init_size; | |
9ca8f72a | 83 | __u32 handover_offset; |
48c7ae67 PA |
84 | } __attribute__((packed)); |
85 | ||
86 | struct sys_desc_table { | |
ee8e7cfe RR |
87 | __u16 length; |
88 | __u8 table[14]; | |
48c7ae67 PA |
89 | }; |
90 | ||
fd699c76 AS |
91 | /* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */ |
92 | struct olpc_ofw_header { | |
93 | __u32 ofw_magic; /* OFW signature */ | |
94 | __u32 ofw_version; | |
95 | __u32 cif_handler; /* callback into OFW */ | |
96 | __u32 irq_desc_table; | |
97 | } __attribute__((packed)); | |
98 | ||
48c7ae67 | 99 | struct efi_info { |
5b83683f | 100 | __u32 efi_loader_signature; |
ee8e7cfe RR |
101 | __u32 efi_systab; |
102 | __u32 efi_memdesc_size; | |
103 | __u32 efi_memdesc_version; | |
104 | __u32 efi_memmap; | |
105 | __u32 efi_memmap_size; | |
5b83683f HY |
106 | __u32 efi_systab_hi; |
107 | __u32 efi_memmap_hi; | |
48c7ae67 PA |
108 | }; |
109 | ||
110 | /* The so-called "zeropage" */ | |
111 | struct boot_params { | |
112 | struct screen_info screen_info; /* 0x000 */ | |
113 | struct apm_bios_info apm_bios_info; /* 0x040 */ | |
31625340 JC |
114 | __u8 _pad2[4]; /* 0x054 */ |
115 | __u64 tboot_addr; /* 0x058 */ | |
238b706d | 116 | struct ist_info ist_info; /* 0x060 */ |
ee8e7cfe RR |
117 | __u8 _pad3[16]; /* 0x070 */ |
118 | __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */ | |
119 | __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */ | |
48c7ae67 | 120 | struct sys_desc_table sys_desc_table; /* 0x0a0 */ |
fd699c76 | 121 | struct olpc_ofw_header olpc_ofw_header; /* 0x0b0 */ |
09c205af PA |
122 | __u32 ext_ramdisk_image; /* 0x0c0 */ |
123 | __u32 ext_ramdisk_size; /* 0x0c4 */ | |
124 | __u32 ext_cmd_line_ptr; /* 0x0c8 */ | |
125 | __u8 _pad4[116]; /* 0x0cc */ | |
48c7ae67 PA |
126 | struct edid_info edid_info; /* 0x140 */ |
127 | struct efi_info efi_info; /* 0x1c0 */ | |
ee8e7cfe RR |
128 | __u32 alt_mem_k; /* 0x1e0 */ |
129 | __u32 scratch; /* Scratch field! */ /* 0x1e4 */ | |
130 | __u8 e820_entries; /* 0x1e8 */ | |
131 | __u8 eddbuf_entries; /* 0x1e9 */ | |
132 | __u8 edd_mbr_sig_buf_entries; /* 0x1ea */ | |
b2d0b7a0 | 133 | __u8 kbd_status; /* 0x1eb */ |
09c205af PA |
134 | __u8 _pad5[3]; /* 0x1ec */ |
135 | /* | |
136 | * The sentinel is set to a nonzero value (0xff) in header.S. | |
137 | * | |
138 | * A bootloader is supposed to only take setup_header and put | |
139 | * it into a clean boot_params buffer. If it turns out that | |
140 | * it is clumsy or too generous with the buffer, it most | |
141 | * probably will pick up the sentinel variable too. The fact | |
142 | * that this variable then is still 0xff will let kernel | |
143 | * know that some variables in boot_params are invalid and | |
144 | * kernel should zero out certain portions of boot_params. | |
145 | */ | |
146 | __u8 sentinel; /* 0x1ef */ | |
147 | __u8 _pad6[1]; /* 0x1f0 */ | |
48c7ae67 | 148 | struct setup_header hdr; /* setup header */ /* 0x1f1 */ |
ee8e7cfe RR |
149 | __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)]; |
150 | __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ | |
48c7ae67 | 151 | struct e820entry e820_map[E820MAX]; /* 0x2d0 */ |
ee8e7cfe | 152 | __u8 _pad8[48]; /* 0xcd0 */ |
48c7ae67 | 153 | struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */ |
ee8e7cfe | 154 | __u8 _pad9[276]; /* 0xeec */ |
48c7ae67 PA |
155 | } __attribute__((packed)); |
156 | ||
162bc7ab PJ |
157 | enum { |
158 | X86_SUBARCH_PC = 0, | |
159 | X86_SUBARCH_LGUEST, | |
160 | X86_SUBARCH_XEN, | |
161 | X86_SUBARCH_MRST, | |
c751e17b | 162 | X86_SUBARCH_CE4100, |
162bc7ab PJ |
163 | X86_NR_SUBARCHS, |
164 | }; | |
165 | ||
09c205af | 166 | #endif /* __ASSEMBLY__ */ |
162bc7ab | 167 | |
1965aae3 | 168 | #endif /* _ASM_X86_BOOTPARAM_H */ |