144 lines
3.3 KiB
C
144 lines
3.3 KiB
C
#ifndef __MULTIBOOT_H__
|
||
#define __MULTIBOOT_H__
|
||
|
||
#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
|
||
|
||
#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
|
||
|
||
/* Must pass memory information to OS. */
|
||
#define MULTIBOOT_PAGE_ALIGN 0x00000001
|
||
|
||
#define MULTIBOOT_MEMORY_INFO 0x00000002
|
||
|
||
#define MULTIBOOT_VIDEO_MODE 0x00000004
|
||
|
||
#define MULTIBOOT_AOUT_KLUDGE 0x00010000
|
||
|
||
/* consts used for Multiboot pre-init */
|
||
|
||
#define MULTIBOOT_VIDEO_MODE_EGA 1
|
||
|
||
#define MULTIBOOT_VIDEO_BUFFER 0xB8000
|
||
|
||
/* Usable lower memory chunk has a upper bound */
|
||
#define MULTIBOOT_LOWER_MEM_MAX 0x7f800
|
||
|
||
#define MULTIBOOT_CONSOLE_LINES 25
|
||
#define MULTIBOOT_CONSOLE_COLS 80
|
||
|
||
#define MULTIBOOT_VIDEO_BUFFER_BYTES \
|
||
(MULTIBOOT_CONSOLE_LINES*MULTIBOOT_CONSOLE_COLS*2)
|
||
|
||
#define MULTIBOOT_STACK_SIZE 4096
|
||
#define MULTIBOOT_PARAM_BUF_SIZE 1024
|
||
|
||
#define MULTIBOOT_MAX_MODS 20
|
||
|
||
/* Flags to be set in the ’flags’ member of the multiboot info structure. */
|
||
|
||
#define MULTIBOOT_INFO_MEMORY 0x00000001
|
||
#define MULTIBOOT_INFO_MEM_MAP 0x00000040
|
||
|
||
/* Is there a boot device set? */
|
||
#define MULTIBOOT_INFO_BOOTDEV 0x00000002
|
||
|
||
/* Is the command-line defined? */
|
||
#define MULTIBOOT_INFO_CMDLINE 0x00000004
|
||
|
||
/* Are there modules to do something with? */
|
||
#define MULTIBOOT_INFO_MODS 0x00000008
|
||
|
||
#define MULTIBOOT_HIGH_MEM_BASE 0x100000
|
||
|
||
#ifndef __ASSEMBLY__
|
||
|
||
#include <sys/types.h>
|
||
/* The symbol table for a.out. */
|
||
struct multiboot_aout_symbol_table
|
||
{
|
||
u32_t tabsize;
|
||
u32_t strsize;
|
||
u32_t addr;
|
||
u32_t reserved;
|
||
};
|
||
/* The section header table for ELF. */
|
||
struct multiboot_elf_section_header_table
|
||
{
|
||
u32_t num;
|
||
u32_t size;
|
||
u32_t addr;
|
||
u32_t shndx;
|
||
};
|
||
|
||
typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
|
||
typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
|
||
|
||
struct multiboot_info
|
||
{
|
||
/* Multiboot info version number */
|
||
u32_t flags;
|
||
/* Available memory from BIOS */
|
||
u32_t mem_lower_unused; /* minix uses memmap instead */
|
||
u32_t mem_upper_unused;
|
||
/* "root" partition */
|
||
u32_t boot_device;
|
||
/* Kernel command line */
|
||
u32_t cmdline;
|
||
/* Boot-Module list */
|
||
u32_t mods_count;
|
||
u32_t mods_addr;
|
||
union
|
||
{
|
||
multiboot_aout_symbol_table_t aout_sym;
|
||
multiboot_elf_section_header_table_t elf_sec;
|
||
} u;
|
||
/* Memory Mapping buffer */
|
||
u32_t mmap_length;
|
||
u32_t mmap_addr;
|
||
/* Drive Info buffer */
|
||
u32_t drives_length;
|
||
u32_t drives_addr;
|
||
/* ROM configuration table */
|
||
u32_t config_table;
|
||
/* Boot Loader Name */
|
||
u32_t boot_loader_name;
|
||
/* APM table */
|
||
u32_t apm_table;
|
||
/* Video */
|
||
u32_t vbe_control_info;
|
||
u32_t vbe_mode_info;
|
||
u16_t vbe_mode;
|
||
u16_t vbe_interface_seg;
|
||
u16_t vbe_interface_off;
|
||
u16_t vbe_interface_len;
|
||
};
|
||
typedef struct multiboot_info multiboot_info_t;
|
||
|
||
struct multiboot_mod_list
|
||
{
|
||
/* Memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */
|
||
u32_t mod_start;
|
||
u32_t mod_end;
|
||
/* Module command line */
|
||
u32_t cmdline;
|
||
/* Pad struct to 16 bytes (must be zero) */
|
||
u32_t pad;
|
||
};
|
||
typedef struct multiboot_mod_list multiboot_module_t;
|
||
|
||
#define MULTIBOOT_MEMORY_AVAILABLE 1
|
||
#define MULTIBOOT_MEMORY_RESERVED 2
|
||
struct multiboot_mmap_entry
|
||
{
|
||
u32_t size;
|
||
u64_t addr;
|
||
u64_t len;
|
||
#define MULTIBOOT_MEMORY_AVAILABLE 1
|
||
#define MULTIBOOT_MEMORY_RESERVED 2
|
||
u32_t type;
|
||
} __attribute__((packed));
|
||
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
|
||
|
||
#endif /* __ASSEMBLY__ */
|
||
#endif /* __MULTIBOOT_H__ */
|