#ifndef MULTIBOOT_HEADER #define MULTIBOOT_HEADER 1 /* * How many bytes from the start of the file we search for the header. * */ #define MULTIBOOT_SEARCH 32768 #define MULTIBOOT_HEADER_ALIGN 8 /* * The magic field should contain this. * */ #define MULTIBOOT2_HEADER_MAGIC 0xe85250d6 /* * This should be in %eax. * */ #define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289 /* * Alignment of multiboot modules. * */ #define MULTIBOOT_MOD_ALIGN 0x00001000 /* * Alignment of the multiboot info structure. * */ #define MULTIBOOT_INFO_ALIGN 0x00000008 /* * Flags set in the ’flags’ member of the multiboot header. * */ #define MULTIBOOT_TAG_ALIGN 8 #define MULTIBOOT_TAG_TYPE_END 0 #define MULTIBOOT_TAG_TYPE_CMDLINE 1 #define MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME 2 #define MULTIBOOT_TAG_TYPE_MODULE 3 #define MULTIBOOT_TAG_TYPE_BASIC_MEMINFO 4 #define MULTIBOOT_TAG_TYPE_BOOTDEV 5 #define MULTIBOOT_TAG_TYPE_MMAP 6 #define MULTIBOOT_TAG_TYPE_VBE 7 #define MULTIBOOT_TAG_TYPE_FRAMEBUFFER 8 #define MULTIBOOT_TAG_TYPE_ELF_SECTIONS 9 #define MULTIBOOT_TAG_TYPE_APM 10 #define MULTIBOOT_HEADER_TAG_END 0 #define MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST 1 #define MULTIBOOT_HEADER_TAG_ADDRESS 2 #define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS 3 #define MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS 4 #define MULTIBOOT_HEADER_TAG_FRAMEBUFFER 5 #define MULTIBOOT_HEADER_TAG_MODULE_ALIGN 6 #define MULTIBOOT_ARCHITECTURE_I386 0 #define MULTIBOOT_ARCHITECTURE_MIPS32 4 #define MULTIBOOT_HEADER_TAG_OPTIONAL 1 #define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1 #define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2 #ifndef ASM_FILE typedef unsigned char multiboot_uint8_t; typedef unsigned short multiboot_uint16_t; typedef unsigned int multiboot_uint32_t; typedef unsigned long long multiboot_uint64_t; struct multiboot_header { /* * Must be MULTIBOOT * MAGIC - see above. * */ multiboot_uint32_t magic; /* * ISA * */ multiboot_uint32_t architecture; /* * Total header length. * */ multiboot_uint32_t header_length; /* * The above fields plus this one must equal 0 mod 2 * ^ * 32. * */ multiboot_uint32_t checksum; }; struct multiboot_header_tag { multiboot_uint16_t type; multiboot_uint16_t flags; multiboot_uint32_t size; }; struct multiboot_header_tag_information_request { multiboot_uint16_t type; multiboot_uint16_t flags; multiboot_uint32_t size; multiboot_uint32_t requests[0]; }; struct multiboot_header_tag_address { multiboot_uint16_t type; multiboot_uint16_t flags; multiboot_uint32_t size; multiboot_uint32_t header_addr; multiboot_uint32_t load_addr; multiboot_uint32_t load_end_addr; multiboot_uint32_t bss_end_addr; }; struct multiboot_header_tag_entry_address { multiboot_uint16_t type; multiboot_uint16_t flags; multiboot_uint32_t size; multiboot_uint32_t entry_addr; }; struct multiboot_header_tag_console_flags { multiboot_uint16_t type; multiboot_uint16_t flags; multiboot_uint32_t size; multiboot_uint32_t console_flags; }; struct multiboot_header_tag_framebuffer { multiboot_uint16_t type; multiboot_uint16_t flags; multiboot_uint32_t size; multiboot_uint32_t width; multiboot_uint32_t height; multiboot_uint32_t depth; }; struct multiboot_header_tag_module_align { multiboot_uint16_t type; multiboot_uint16_t flags; multiboot_uint32_t size; multiboot_uint32_t width; multiboot_uint32_t height; multiboot_uint32_t depth; }; struct multiboot_color { multiboot_uint8_t red; multiboot_uint8_t green; multiboot_uint8_t blue; }; struct multiboot_mmap_entry { multiboot_uint64_t addr; multiboot_uint64_t len; #define MULTIBOOT_MEMORY_AVAILABLE 1 #define MULTIBOOT_MEMORY_RESERVED 2 #define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3 #define MULTIBOOT_MEMORY_NVS 4 multiboot_uint32_t type; multiboot_uint32_t zero; } __attribute__((packed)); typedef struct multiboot_mmap_entry multiboot_memory_map_t; struct multiboot_tag { multiboot_uint32_t type; multiboot_uint32_t size; }; struct multiboot_tag_string { multiboot_uint32_t type; multiboot_uint32_t size; char string[0]; }; struct multiboot_tag_module { multiboot_uint32_t type; multiboot_uint32_t size; multiboot_uint32_t mod_start; multiboot_uint32_t mod_end; char cmdline[0]; }; struct multiboot_tag_basic_meminfo { multiboot_uint32_t type; multiboot_uint32_t size; multiboot_uint32_t mem_lower; multiboot_uint32_t mem_upper; }; struct multiboot_tag_bootdev { multiboot_uint32_t type; multiboot_uint32_t size; multiboot_uint32_t biosdev; multiboot_uint32_t slice; multiboot_uint32_t part; }; struct multiboot_tag_mmap { multiboot_uint32_t type; multiboot_uint32_t size; multiboot_uint32_t entry_size; multiboot_uint32_t entry_version; struct multiboot_mmap_entry entries[0]; }; struct multiboot_vbe_info_block { multiboot_uint8_t external_specification[512]; }; struct multiboot_vbe_mode_info_block { multiboot_uint8_t external_specification[256]; }; struct multiboot_tag_vbe { multiboot_uint32_t type; multiboot_uint32_t size; multiboot_uint16_t vbe_mode; multiboot_uint16_t vbe_interface_seg; multiboot_uint16_t vbe_interface_off; multiboot_uint16_t vbe_interface_len; struct multiboot_vbe_info_block vbe_control_info; struct multiboot_vbe_mode_info_block vbe_mode_info; }; struct multiboot_tag_framebuffer_common { multiboot_uint32_t type; multiboot_uint32_t size; multiboot_uint64_t framebuffer_addr; multiboot_uint32_t framebuffer_pitch; multiboot_uint32_t framebuffer_width; multiboot_uint32_t framebuffer_height; multiboot_uint8_t framebuffer_bpp; #define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0 #define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1 #define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2 multiboot_uint8_t framebuffer_type; multiboot_uint16_t reserved; }; struct multiboot_tag_framebuffer { struct multiboot_tag_framebuffer_common common; union { struct { multiboot_uint16_t framebuffer_palette_num_colors; struct multiboot_color framebuffer_palette[0]; }; struct { multiboot_uint8_t framebuffer_red_field_position; multiboot_uint8_t framebuffer_red_mask_size; multiboot_uint8_t framebuffer_green_field_position; multiboot_uint8_t framebuffer_green_mask_size; multiboot_uint8_t framebuffer_blue_field_position; multiboot_uint8_t framebuffer_blue_mask_size; }; }; }; struct multiboot_tag_elf_sections { multiboot_uint32_t type; multiboot_uint32_t size; multiboot_uint32_t num; multiboot_uint32_t entsize; multiboot_uint32_t shndx; char sections[0]; }; struct multiboot_tag_apm { multiboot_uint32_t type; multiboot_uint32_t size; multiboot_uint16_t version; multiboot_uint16_t cseg; multiboot_uint32_t offset; multiboot_uint16_t cseg_16; multiboot_uint16_t dseg; multiboot_uint16_t flags; multiboot_uint16_t cseg_len; multiboot_uint16_t cseg_16_len; multiboot_uint16_t dseg_len; }; #endif #endif