bootparam.h revision a528633fda88a435c59f35f2eee1665dedaf8cf4 
1/* bootparms.h base on Linux kernel include/asm-x86/bootparam.h */
2
3#include "types.h"
4
5#define EDD_MBR_SIG_MAX 16
6#define E820MAX 128
7#define EDDMAXNR 6
8
9/* extensible setup data list node */
10struct setup_data {
11	__u64 next;
12	__u32 type;
13	__u32 len;
14	__u8 data[0];
15};
16
17struct screen_info {
18	__u8  orig_x;	   /* 0x00 */
19	__u8  orig_y;	   /* 0x01 */
20	__u16 ext_mem_k;	/* 0x02 */
21	__u16 orig_video_page;  /* 0x04 */
22	__u8  orig_video_mode;  /* 0x06 */
23	__u8  orig_video_cols;  /* 0x07 */
24	__u16 unused2;	  /* 0x08 */
25	__u16 orig_video_ega_bx;/* 0x0a */
26	__u16 unused3;	  /* 0x0c */
27	__u8  orig_video_lines; /* 0x0e */
28	__u8  orig_video_isVGA; /* 0x0f */
29	__u16 orig_video_points;/* 0x10 */
30
31	/* VESA graphic mode -- linear frame buffer */
32	__u16 lfb_width;	/* 0x12 */
33	__u16 lfb_height;       /* 0x14 */
34	__u16 lfb_depth;	/* 0x16 */
35	__u32 lfb_base;	 /* 0x18 */
36	__u32 lfb_size;	 /* 0x1c */
37	__u16 cl_magic, cl_offset; /* 0x20 */
38	__u16 lfb_linelength;   /* 0x24 */
39	__u8  red_size;	 /* 0x26 */
40	__u8  red_pos;	  /* 0x27 */
41	__u8  green_size;       /* 0x28 */
42	__u8  green_pos;	/* 0x29 */
43	__u8  blue_size;	/* 0x2a */
44	__u8  blue_pos;	 /* 0x2b */
45	__u8  rsvd_size;	/* 0x2c */
46	__u8  rsvd_pos;	 /* 0x2d */
47	__u16 vesapm_seg;       /* 0x2e */
48	__u16 vesapm_off;       /* 0x30 */
49	__u16 pages;	    /* 0x32 */
50	__u16 vesa_attributes;  /* 0x34 */
51	__u32 capabilities;     /* 0x36 */
52	__u8  _reserved[6];     /* 0x3a */
53} __attribute__((packed));
54
55struct apm_bios_info {
56	__u16   version;
57	__u16   cseg;
58	__u32   offset;
59	__u16   cseg_16;
60	__u16   dseg;
61	__u16   flags;
62	__u16   cseg_len;
63	__u16   cseg_16_len;
64	__u16   dseg_len;
65};
66
67struct ist_info {
68	__u32 signature;
69	__u32 command;
70	__u32 event;
71	__u32 perf_level;
72};
73
74struct sys_desc_table {
75	__u16 length;
76	__u8  table[14];
77};
78
79struct efi_info {
80	__u32 efi_loader_signature;
81	__u32 efi_systab;
82	__u32 efi_memdesc_size;
83	__u32 efi_memdesc_version;
84	__u32 efi_memmap;
85	__u32 efi_memmap_size;
86	__u32 efi_systab_hi;
87	__u32 efi_memmap_hi;
88};
89
90struct setup_header {
91	__u8	setup_sects;
92	__u16	root_flags;
93	__u32	syssize;
94	__u16	ram_size;
95	__u16	vid_mode;
96	__u16	root_dev;
97	__u16	boot_flag;
98	__u16	jump;
99	__u32	header;
100	__u16	version;
101	__u32	realmode_swtch;
102	__u16	start_sys;
103	__u16	kernel_version;
104	__u8	type_of_loader;
105	__u8	loadflags;
106	__u16	setup_move_size;
107	__u32	code32_start;
108	__u32	ramdisk_image;
109	__u32	ramdisk_size;
110	__u32	bootsect_kludge;
111	__u16	heap_end_ptr;
112	__u16	_pad1;
113	__u32	cmd_line_ptr;
114	__u32	initrd_addr_max;
115	__u32	kernel_alignment;
116	__u8	relocatable_kernel;
117	__u8	_pad2[3];
118	__u32	cmdline_size;
119	__u32	hardware_subarch;
120	__u64	hardware_subarch_data;
121	__u32	payload_offset;
122	__u32	payload_length;
123	__u64	setup_data;
124} __attribute__((packed));
125
126struct edid_info {
127	unsigned char dummy[128];
128};
129
130struct e820entry {
131	__u64 addr;     /* start of memory segment */
132	__u64 size;     /* size of memory segment */
133	__u32 type;     /* type of memory segment */
134} __attribute__((packed));
135
136struct edd_device_params {
137	__u16 length;
138	__u16 info_flags;
139	__u32 num_default_cylinders;
140	__u32 num_default_heads;
141	__u32 sectors_per_track;
142	__u64 number_of_sectors;
143	__u16 bytes_per_sector;
144	__u32 dpte_ptr;	 /* 0xFFFFFFFF for our purposes */
145	__u16 key;	      /* = 0xBEDD */
146	__u8 device_path_info_length;   /* = 44 */
147	__u8 reserved2;
148	__u16 reserved3;
149	__u8 host_bus_type[4];
150	__u8 interface_type[8];
151	union {
152		struct {
153			__u16 base_address;
154			__u16 reserved1;
155			__u32 reserved2;
156		} __attribute__ ((packed)) isa;
157		struct {
158			__u8 bus;
159			__u8 slot;
160			__u8 function;
161			__u8 channel;
162			__u32 reserved;
163		} __attribute__ ((packed)) pci;
164		/* pcix is same as pci */
165		struct {
166			__u64 reserved;
167		} __attribute__ ((packed)) ibnd;
168		struct {
169			__u64 reserved;
170		} __attribute__ ((packed)) xprs;
171		struct {
172			__u64 reserved;
173		} __attribute__ ((packed)) htpt;
174		struct {
175			__u64 reserved;
176		} __attribute__ ((packed)) unknown;
177	} interface_path;
178	union {
179		struct {
180			__u8 device;
181			__u8 reserved1;
182			__u16 reserved2;
183			__u32 reserved3;
184			__u64 reserved4;
185		} __attribute__ ((packed)) ata;
186		struct {
187			__u8 device;
188			__u8 lun;
189			__u8 reserved1;
190			__u8 reserved2;
191			__u32 reserved3;
192			__u64 reserved4;
193		} __attribute__ ((packed)) atapi;
194		struct {
195			__u16 id;
196			__u64 lun;
197			__u16 reserved1;
198			__u32 reserved2;
199		} __attribute__ ((packed)) scsi;
200		struct {
201			__u64 serial_number;
202			__u64 reserved;
203		} __attribute__ ((packed)) usb;
204		struct {
205			__u64 eui;
206			__u64 reserved;
207		} __attribute__ ((packed)) i1394;
208		struct {
209			__u64 wwid;
210			__u64 lun;
211		} __attribute__ ((packed)) fibre;
212		struct {
213			__u64 identity_tag;
214			__u64 reserved;
215		} __attribute__ ((packed)) i2o;
216	       struct {
217			__u32 array_number;
218			__u32 reserved1;
219			__u64 reserved2;
220		} __attribute__ ((packed)) raid;
221		struct {
222			__u8 device;
223			__u8 reserved1;
224			__u16 reserved2;
225			__u32 reserved3;
226			__u64 reserved4;
227		} __attribute__ ((packed)) sata;
228		struct {
229			__u64 reserved1;
230			__u64 reserved2;
231		} __attribute__ ((packed)) unknown;
232	} device_path;
233	__u8 reserved4;
234	__u8 checksum;
235} __attribute__ ((packed));
236
237struct edd_info {
238	__u8 device;
239	__u8 version;
240	__u16 interface_support;
241	__u16 legacy_max_cylinder;
242	__u8 legacy_max_head;
243	__u8 legacy_sectors_per_track;
244	struct edd_device_params params;
245} __attribute__ ((packed));
246
247/* The so-called "zeropage" */
248struct boot_params {
249	struct screen_info screen_info;			/* 0x000 */
250	struct apm_bios_info apm_bios_info;		/* 0x040 */
251	__u8  _pad2[12];				/* 0x054 */
252	struct ist_info ist_info;			/* 0x060 */
253	__u8  _pad3[16];				/* 0x070 */
254	__u8  hd0_info[16];	/* obsolete! */		/* 0x080 */
255	__u8  hd1_info[16];	/* obsolete! */		/* 0x090 */
256	struct sys_desc_table sys_desc_table;		/* 0x0a0 */
257	__u8  _pad4[144];				/* 0x0b0 */
258	struct edid_info edid_info;			/* 0x140 */
259	struct efi_info efi_info;			/* 0x1c0 */
260	__u32 alt_mem_k;				/* 0x1e0 */
261	__u32 scratch;		/* Scratch field! */	/* 0x1e4 */
262	__u8  e820_entries;				/* 0x1e8 */
263	__u8  eddbuf_entries;				/* 0x1e9 */
264	__u8  edd_mbr_sig_buf_entries;			/* 0x1ea */
265	__u8  _pad6[6];					/* 0x1eb */
266	struct setup_header hdr;    /* setup header */	/* 0x1f1 */
267	__u8  _pad7[0x290-0x1f1-sizeof(struct setup_header)];
268	__u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX];	/* 0x290 */
269	struct e820entry e820_map[E820MAX];		/* 0x2d0 */
270	__u8  _pad8[48];				/* 0xcd0 */
271	struct edd_info eddbuf[EDDMAXNR];		/* 0xd00 */
272	__u8  _pad9[276];				/* 0xeec */
273} __attribute__((packed));
274#define X86_SUBARCH_PC			0
275#define X86_SUBARCH_LGUEST 		1
276#define X86_SUBARCH_XEN			2
277#define X86_SUBARCH_MRST		3
278
279