[mirror_ubuntu-hirsute-kernel.git] / arch / x86 / include / uapi / asm / bootparam.h

#ifndef _ASM_X86_BOOTPARAM_H
#define _ASM_X86_BOOTPARAM_H

/* setup_data types */
#define SETUP_NONE			0
#define SETUP_E820_EXT			1
#define SETUP_DTB			2
#define SETUP_PCI			3
#define SETUP_EFI_VARS			4

/* ram_size flags */
#define RAMDISK_IMAGE_START_MASK	0x07FF
#define RAMDISK_PROMPT_FLAG		0x8000
#define RAMDISK_LOAD_FLAG		0x4000

/* loadflags */
#define LOADED_HIGH	(1<<0)
#define QUIET_FLAG	(1<<5)
#define KEEP_SEGMENTS	(1<<6)
#define CAN_USE_HEAP	(1<<7)

/* xloadflags */
#define XLF_KERNEL_64			(1<<0)
#define XLF_CAN_BE_LOADED_ABOVE_4G	(1<<1)
#define XLF_EFI_HANDOVER_32		(1<<2)
#define XLF_EFI_HANDOVER_64		(1<<3)

#ifndef __ASSEMBLY__

#include <linux/types.h>
#include <linux/screen_info.h>
#include <linux/apm_bios.h>
#include <linux/edd.h>
#include <asm/e820.h>
#include <asm/ist.h>
#include <video/edid.h>

/* extensible setup data list node */
struct setup_data {
	__u64 next;
	__u32 type;
	__u32 len;
	__u8 data[0];
};

struct setup_header {
	__u8	setup_sects;
	__u16	root_flags;
	__u32	syssize;
	__u16	ram_size;
	__u16	vid_mode;
	__u16	root_dev;
	__u16	boot_flag;
	__u16	jump;
	__u32	header;
	__u16	version;
	__u32	realmode_swtch;
	__u16	start_sys;
	__u16	kernel_version;
	__u8	type_of_loader;
	__u8	loadflags;
	__u16	setup_move_size;
	__u32	code32_start;
	__u32	ramdisk_image;
	__u32	ramdisk_size;
	__u32	bootsect_kludge;
	__u16	heap_end_ptr;
	__u8	ext_loader_ver;
	__u8	ext_loader_type;
	__u32	cmd_line_ptr;
	__u32	initrd_addr_max;
	__u32	kernel_alignment;
	__u8	relocatable_kernel;
	__u8	min_alignment;
	__u16	xloadflags;
	__u32	cmdline_size;
	__u32	hardware_subarch;
	__u64	hardware_subarch_data;
	__u32	payload_offset;
	__u32	payload_length;
	__u64	setup_data;
	__u64	pref_address;
	__u32	init_size;
	__u32	handover_offset;
} __attribute__((packed));

struct sys_desc_table {
	__u16 length;
	__u8  table[14];
};

/* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */
struct olpc_ofw_header {
	__u32 ofw_magic;	/* OFW signature */
	__u32 ofw_version;
	__u32 cif_handler;	/* callback into OFW */
	__u32 irq_desc_table;
} __attribute__((packed));

struct efi_info {
	__u32 efi_loader_signature;
	__u32 efi_systab;
	__u32 efi_memdesc_size;
	__u32 efi_memdesc_version;
	__u32 efi_memmap;
	__u32 efi_memmap_size;
	__u32 efi_systab_hi;
	__u32 efi_memmap_hi;
};

/* The so-called "zeropage" */
struct boot_params {
	struct screen_info screen_info;			/* 0x000 */
	struct apm_bios_info apm_bios_info;		/* 0x040 */
	__u8  _pad2[4];					/* 0x054 */
	__u64  tboot_addr;				/* 0x058 */
	struct ist_info ist_info;			/* 0x060 */
	__u8  _pad3[16];				/* 0x070 */
	__u8  hd0_info[16];	/* obsolete! */		/* 0x080 */
	__u8  hd1_info[16];	/* obsolete! */		/* 0x090 */
	struct sys_desc_table sys_desc_table;		/* 0x0a0 */
	struct olpc_ofw_header olpc_ofw_header;		/* 0x0b0 */
	__u32 ext_ramdisk_image;			/* 0x0c0 */
	__u32 ext_ramdisk_size;				/* 0x0c4 */
	__u32 ext_cmd_line_ptr;				/* 0x0c8 */
	__u8  _pad4[116];				/* 0x0cc */
	struct edid_info edid_info;			/* 0x140 */
	struct efi_info efi_info;			/* 0x1c0 */
	__u32 alt_mem_k;				/* 0x1e0 */
	__u32 scratch;		/* Scratch field! */	/* 0x1e4 */
	__u8  e820_entries;				/* 0x1e8 */
	__u8  eddbuf_entries;				/* 0x1e9 */
	__u8  edd_mbr_sig_buf_entries;			/* 0x1ea */
	__u8  kbd_status;				/* 0x1eb */
	__u8  _pad5[3];					/* 0x1ec */
	/*
	 * The sentinel is set to a nonzero value (0xff) in header.S.
	 *
	 * A bootloader is supposed to only take setup_header and put
	 * it into a clean boot_params buffer. If it turns out that
	 * it is clumsy or too generous with the buffer, it most
	 * probably will pick up the sentinel variable too. The fact
	 * that this variable then is still 0xff will let kernel
	 * know that some variables in boot_params are invalid and
	 * kernel should zero out certain portions of boot_params.
	 */
	__u8  sentinel;					/* 0x1ef */
	__u8  _pad6[1];					/* 0x1f0 */
	struct setup_header hdr;    /* setup header */	/* 0x1f1 */
	__u8  _pad7[0x290-0x1f1-sizeof(struct setup_header)];
	__u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX];	/* 0x290 */
	struct e820entry e820_map[E820MAX];		/* 0x2d0 */
	__u8  _pad8[48];				/* 0xcd0 */
	struct edd_info eddbuf[EDDMAXNR];		/* 0xd00 */
	__u8  _pad9[276];				/* 0xeec */
} __attribute__((packed));

enum {
	X86_SUBARCH_PC = 0,
	X86_SUBARCH_LGUEST,
	X86_SUBARCH_XEN,
	X86_SUBARCH_MRST,
	X86_SUBARCH_CE4100,
	X86_NR_SUBARCHS,
};

#endif /* __ASSEMBLY__ */

#endif /* _ASM_X86_BOOTPARAM_H */
Commit	Line	Data
1965aae3 PA	1	#ifndef _ASM_X86_BOOTPARAM_H
1965aae3 PA	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
cc5a080c	9	#define SETUP_EFI_VARS 4
09c205af PA	10
	11	/* ram_size flags */
	12	#define RAMDISK_IMAGE_START_MASK 0x07FF
	13	#define RAMDISK_PROMPT_FLAG 0x8000
	14	#define RAMDISK_LOAD_FLAG 0x4000
	15
	16	/* loadflags */
	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)
	21
	22	/* xloadflags */
	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
	28	#ifndef __ASSEMBLY__
	29
48c7ae67 PA	30	#include <linux/types.h>
	31	#include <linux/screen_info.h>
	32	#include <linux/apm_bios.h>
48c7ae67	33	#include <linux/edd.h>
238b706d PA	34	#include <asm/e820.h>
238b706d PA	35	#include <asm/ist.h>
48c7ae67 PA	36	#include <video/edid.h>
48c7ae67 PA	37
8b664aa6 HY	38	/* extensible setup data list node */
8b664aa6 HY	39	struct setup_data {
afaafe50 RR	40	__u64 next;
	41	__u32 type;
	42	__u32 len;
	43	__u8 data[0];
8b664aa6 HY	44	};
8b664aa6 HY	45
48c7ae67	46	struct setup_header {
ee8e7cfe RR	47	__u8 setup_sects;
	48	__u16 root_flags;
	49	__u32 syssize;
	50	__u16 ram_size;
ee8e7cfe RR	51	__u16 vid_mode;
	52	__u16 root_dev;
	53	__u16 boot_flag;
	54	__u16 jump;
	55	__u32 header;
	56	__u16 version;
	57	__u32 realmode_swtch;
	58	__u16 start_sys;
	59	__u16 kernel_version;
	60	__u8 type_of_loader;
	61	__u8 loadflags;
ee8e7cfe RR	62	__u16 setup_move_size;
	63	__u32 code32_start;
	64	__u32 ramdisk_image;
	65	__u32 ramdisk_size;
	66	__u32 bootsect_kludge;
	67	__u16 heap_end_ptr;
5031296c PA	68	__u8 ext_loader_ver;
5031296c PA	69	__u8 ext_loader_type;
ee8e7cfe RR	70	__u32 cmd_line_ptr;
	71	__u32 initrd_addr_max;
	72	__u32 kernel_alignment;
	73	__u8 relocatable_kernel;
09c205af PA	74	__u8 min_alignment;
09c205af PA	75	__u16 xloadflags;
ee8e7cfe RR	76	__u32 cmdline_size;
	77	__u32 hardware_subarch;
	78	__u64 hardware_subarch_data;
8b664aa6 HY	79	__u32 payload_offset;
	80	__u32 payload_length;
	81	__u64 setup_data;
8af21e7e MF	82	__u64 pref_address;
8af21e7e MF	83	__u32 init_size;
9ca8f72a	84	__u32 handover_offset;
48c7ae67 PA	85	} __attribute__((packed));
	86
	87	struct sys_desc_table {
ee8e7cfe RR	88	__u16 length;
ee8e7cfe RR	89	__u8 table[14];
48c7ae67 PA	90	};
48c7ae67 PA	91
fd699c76 AS	92	/* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */
	93	struct olpc_ofw_header {
	94	__u32 ofw_magic; /* OFW signature */
	95	__u32 ofw_version;
	96	__u32 cif_handler; /* callback into OFW */
	97	__u32 irq_desc_table;
	98	} __attribute__((packed));
	99
48c7ae67	100	struct efi_info {
5b83683f	101	__u32 efi_loader_signature;
ee8e7cfe RR	102	__u32 efi_systab;
	103	__u32 efi_memdesc_size;
	104	__u32 efi_memdesc_version;
	105	__u32 efi_memmap;
	106	__u32 efi_memmap_size;
5b83683f HY	107	__u32 efi_systab_hi;
5b83683f HY	108	__u32 efi_memmap_hi;
48c7ae67 PA	109	};
	110
	111	/* The so-called "zeropage" */
	112	struct boot_params {
	113	struct screen_info screen_info; /* 0x000 */
	114	struct apm_bios_info apm_bios_info; /* 0x040 */
31625340 JC	115	__u8 _pad2[4]; /* 0x054 */
31625340 JC	116	__u64 tboot_addr; /* 0x058 */
238b706d	117	struct ist_info ist_info; /* 0x060 */
ee8e7cfe RR	118	__u8 _pad3[16]; /* 0x070 */
	119	__u8 hd0_info[16]; /* obsolete! / / 0x080 */
	120	__u8 hd1_info[16]; /* obsolete! / / 0x090 */
48c7ae67	121	struct sys_desc_table sys_desc_table; /* 0x0a0 */
fd699c76	122	struct olpc_ofw_header olpc_ofw_header; /* 0x0b0 */
09c205af PA	123	__u32 ext_ramdisk_image; /* 0x0c0 */
	124	__u32 ext_ramdisk_size; /* 0x0c4 */
	125	__u32 ext_cmd_line_ptr; /* 0x0c8 */
	126	__u8 _pad4[116]; /* 0x0cc */
48c7ae67 PA	127	struct edid_info edid_info; /* 0x140 */
48c7ae67 PA	128	struct efi_info efi_info; /* 0x1c0 */
ee8e7cfe RR	129	__u32 alt_mem_k; /* 0x1e0 */
	130	__u32 scratch; /* Scratch field! / / 0x1e4 */
	131	__u8 e820_entries; /* 0x1e8 */
	132	__u8 eddbuf_entries; /* 0x1e9 */
	133	__u8 edd_mbr_sig_buf_entries; /* 0x1ea */
b2d0b7a0	134	__u8 kbd_status; /* 0x1eb */
09c205af PA	135	__u8 _pad5[3]; /* 0x1ec */
	136	/*
	137	* The sentinel is set to a nonzero value (0xff) in header.S.
	138	*
	139	* A bootloader is supposed to only take setup_header and put
	140	* it into a clean boot_params buffer. If it turns out that
	141	* it is clumsy or too generous with the buffer, it most
	142	* probably will pick up the sentinel variable too. The fact
	143	* that this variable then is still 0xff will let kernel
	144	* know that some variables in boot_params are invalid and
	145	* kernel should zero out certain portions of boot_params.
	146	*/
	147	__u8 sentinel; /* 0x1ef */
	148	__u8 _pad6[1]; /* 0x1f0 */
48c7ae67	149	struct setup_header hdr; /* setup header / / 0x1f1 */
ee8e7cfe RR	150	__u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)];
ee8e7cfe RR	151	__u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
48c7ae67	152	struct e820entry e820_map[E820MAX]; /* 0x2d0 */
ee8e7cfe	153	__u8 _pad8[48]; /* 0xcd0 */
48c7ae67	154	struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */
ee8e7cfe	155	__u8 _pad9[276]; /* 0xeec */
48c7ae67 PA	156	} __attribute__((packed));
48c7ae67 PA	157
162bc7ab PJ	158	enum {
	159	X86_SUBARCH_PC = 0,
	160	X86_SUBARCH_LGUEST,
	161	X86_SUBARCH_XEN,
	162	X86_SUBARCH_MRST,
c751e17b	163	X86_SUBARCH_CE4100,
162bc7ab PJ	164	X86_NR_SUBARCHS,
	165	};
	166
09c205af	167	#endif /* __ASSEMBLY__ */
162bc7ab	168
1965aae3	169	#endif /* _ASM_X86_BOOTPARAM_H */