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git01.mediatek.com / filogic / uboot / c1969ab9b15482812d68c7b5a0fd1414b044b1a6 / . / arch / x86 / include / asm / bootparam.h
blob: 7a3c1f515544dd1e50eaa816396a98c2f62de9a8 [file] [log] [blame]
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]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 <asm/video/edid.h>
11
12/* setup data types */
Ivan Gorinov901bb0b2018-03-26 18:06:54 -0700[diff] [blame]13enum {
14 SETUP_NONE = 0,
15 SETUP_E820_EXT,
16 SETUP_DTB,
17};
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]18
19/* extensible setup data list node */
20struct setup_data {
21 __u64 next;
22 __u32 type;
23 __u32 len;
24 __u8 data[0];
25};
26
Simon Glass6d5738d2020-09-05 14:50:37 -0600[diff] [blame]27/**
28 * struct setup_header - Information needed by Linux to boot
29 *
30 * See https://www.kernel.org/doc/html/latest/x86/boot.html
31 */
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]32struct setup_header {
33 __u8 setup_sects;
34 __u16 root_flags;
35 __u32 syssize;
36 __u16 ram_size;
37#define RAMDISK_IMAGE_START_MASK 0x07FF
38#define RAMDISK_PROMPT_FLAG 0x8000
39#define RAMDISK_LOAD_FLAG 0x4000
40 __u16 vid_mode;
41 __u16 root_dev;
42 __u16 boot_flag;
43 __u16 jump;
44 __u32 header;
45 __u16 version;
46 __u32 realmode_swtch;
47 __u16 start_sys;
48 __u16 kernel_version;
49 __u8 type_of_loader;
50 __u8 loadflags;
Simon Glass6d5738d2020-09-05 14:50:37 -0600[diff] [blame]51#define LOADED_HIGH BIT(0)
52#define KASLR_FLAG BIT(1)
53#define QUIET_FLAG BIT(5)
54#define KEEP_SEGMENTS BIT(6) /* Obsolete */
55#define CAN_USE_HEAP BIT(7)
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]56 __u16 setup_move_size;
57 __u32 code32_start;
58 __u32 ramdisk_image;
59 __u32 ramdisk_size;
Simon Glass6d5738d2020-09-05 14:50:37 -0600[diff] [blame]60 __u32 bootsect_kludge; /* Obsolete */
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]61 __u16 heap_end_ptr;
62 __u8 ext_loader_ver;
63 __u8 ext_loader_type;
64 __u32 cmd_line_ptr;
65 __u32 initrd_addr_max;
66 __u32 kernel_alignment;
67 __u8 relocatable_kernel;
Simon Glass6d5738d2020-09-05 14:50:37 -0600[diff] [blame]68 u8 min_alignment;
69#define XLF_KERNEL_64 BIT(0)
70#define XLF_CAN_BE_LOADED_ABOVE_4G BIT(1)
71#define XLF_EFI_HANDOVER_32 BIT(2)
72#define XLF_EFI_HANDOVER_64 BIT(3)
73#define XLF_EFI_KEXEC BIT(4)
74 u16 xloadflags;
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]75 __u32 cmdline_size;
76 __u32 hardware_subarch;
77 __u64 hardware_subarch_data;
78 __u32 payload_offset;
79 __u32 payload_length;
80 __u64 setup_data;
Stefan Roese58e41cc2016-09-30 09:15:59 +0200[diff] [blame]81 __u64 pref_address;
82 __u32 init_size;
83 __u32 handover_offset;
Simon Glass6d5738d2020-09-05 14:50:37 -0600[diff] [blame]84 u32 kernel_info_offset;
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]85} __attribute__((packed));
86
87struct sys_desc_table {
88 __u16 length;
89 __u8 table[14];
90};
91
92struct efi_info {
93 __u32 efi_loader_signature;
94 __u32 efi_systab;
95 __u32 efi_memdesc_size;
96 __u32 efi_memdesc_version;
97 __u32 efi_memmap;
98 __u32 efi_memmap_size;
99 __u32 efi_systab_hi;
100 __u32 efi_memmap_hi;
101};
102
103/* The so-called "zeropage" */
104struct boot_params {
105 struct screen_info screen_info; /* 0x000 */
106 struct apm_bios_info apm_bios_info; /* 0x040 */
107 __u8 _pad2[4]; /* 0x054 */
108 __u64 tboot_addr; /* 0x058 */
109 struct ist_info ist_info; /* 0x060 */
Andy Shevchenkod87a21d2019-09-13 18:42:00 +0300[diff] [blame]110 __u64 acpi_rsdp_addr; /* 0x070 */
111 __u8 _pad3[8]; /* 0x078 */
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]112 __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */
113 __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */
114 struct sys_desc_table sys_desc_table; /* 0x0a0 */
115 __u8 _pad4[144]; /* 0x0b0 */
116 struct edid_info edid_info; /* 0x140 */
117 struct efi_info efi_info; /* 0x1c0 */
118 __u32 alt_mem_k; /* 0x1e0 */
119 __u32 scratch; /* Scratch field! */ /* 0x1e4 */
120 __u8 e820_entries; /* 0x1e8 */
121 __u8 eddbuf_entries; /* 0x1e9 */
122 __u8 edd_mbr_sig_buf_entries; /* 0x1ea */
123 __u8 _pad6[6]; /* 0x1eb */
124 struct setup_header hdr; /* setup header */ /* 0x1f1 */
125 __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)];
126 __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
Bin Meng4b8fc742018-04-11 22:02:11 -0700[diff] [blame]127 struct e820_entry e820_map[E820MAX]; /* 0x2d0 */
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]128 __u8 _pad8[48]; /* 0xcd0 */
129 struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */
130 __u8 _pad9[276]; /* 0xeec */
131} __attribute__((packed));
132
133enum {
134 X86_SUBARCH_PC = 0,
135 X86_SUBARCH_LGUEST,
136 X86_SUBARCH_XEN,
Andy Shevchenko7c7a0782017-01-08 23:51:04 +0300[diff] [blame]137 X86_SUBARCH_INTEL_MID,
138 X86_SUBARCH_CE4100,
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]139 X86_NR_SUBARCHS,
140};
Graeme Russ1bab1042010-04-24 00:05:49 +1000[diff] [blame]141#endif /* _ASM_X86_BOOTPARAM_H */