78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
#pragma once
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#define MBOOT1_MAGIC 0x1BADB002
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#define MBOOT1_MAGIC2 0x2BADB002
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#define MBOOT1_FLAG_PAGE_ALIGN 0x01
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#define MBOOT1_FLAG_MEM_INFO 0x02
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#define MBOOT1_HEADER_FLAGS (MBOOT1_FLAG_PAGE_ALIGN | MBOOT1_FLAG_MEM_INFO)
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#define MBOOT1_HEADER_CHECKSUM -(MBOOT1_HEADER_FLAGS + MBOOT1_MAGIC)
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#define MBOOT2_MAGIC 0xE85250D6
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#define MBOOT2_MAGIC2 0x36D76289
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#define MBOOT2_ARCH 0
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#define MBOOT2_LENGTH (MultiBootHeaderEnd - MultiBootHeader)
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#define MBOOT2_CHECKSUM -(MBOOT2_MAGIC + MBOOT2_ARCH + MBOOT2_LENGTH)
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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// MULTIBOOT 1
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typedef struct {
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uint32_t flags;
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uint32_t mem_lower;
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uint32_t mem_upper;
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uint32_t boot_device;
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uint32_t cmdline;
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uint32_t mods_count;
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uint32_t mods_addr;
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uint32_t symbol_num;
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uint32_t symbol_size;
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uint32_t symbol_addr;
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uint32_t symbol_shndx;
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uint32_t mmap_len;
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uint32_t mmap_addr;
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uint32_t drives_len;
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uint32_t drives_addr;
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uint32_t config_table;
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uint32_t bootloader_name;
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uint32_t apm_table;
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uint32_t vbe_control_info;
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uint32_t vbe_mode_info;
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uint32_t vbe_mode;
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uint32_t vbe_interface_seg;
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uint32_t vbe_interface_off;
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uint32_t vbe_interface_len;
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} mboot1_info;
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// MULTIBOOT 2
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typedef struct {
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uint32_t total_size;
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uint32_t reserved;
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} mboot2_tags_head;
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typedef struct {
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uint32_t type;
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uint32_t size;
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char data[];
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} mboot2_tag_basic;
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#define MBOOT2_CMDLINE 1
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#define MBOOT2_BOOTLOADER 2
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// Multiboot tags are padded to a multiple of 8 bytes
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#define next_tag(tag) ((void *)((((uintptr_t)tag) + tag->size + 7) & ~0x7))
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extern char *mboot_tags_type[];
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struct mboot_data_st{
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int version;
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void *data;
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char *commandline;
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char *bootloader;
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};
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extern struct mboot_data_st mboot_data;
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void multiboot_init(uint64_t magic, void *data);
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#endif
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