120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
/*
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* multiboot.h
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*
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* Created on: Aug 17, 2011
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* Author: Tiberiu
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*/
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#ifndef MULTIBOOT_H_
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#define MULTIBOOT_H_
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#include <types.h>
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// Flags to be set in the 'flags' member of the multiboot info structure.
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#define MultibootInfo_MEMORY 0x00000001 // is there basic lower/upper memory information?
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#define MultibootInfo_BOOTDEV 0x00000002 // is there a boot device set?
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#define MultibootInfo_CMDLINE 0x00000004 // is the command-line defined?
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#define MultibootInfo_MODS 0x00000008 // are there modules to do something with?
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// These next two are mutually exclusive
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#define MultibootInfo_AOUT_SYMS 0x00000010 // is there a symbol table loaded?
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#define MultibootInfo_ELF_SHDR 0X00000020 // is there an ELF section header table?
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#define MultibootInfo_MEM_MAP 0x00000040 // is there a full memory map?
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#define MultibootInfo_DRIVE_INFO 0x00000080 // Is there drive info?
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#define MultibootInfo_CONFIG_TABLE 0x00000100 // Is there a config table?
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#define MultibootInfo_BOOT_LOADER_NAME 0x00000200 // Is there a boot loader name?
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#define MultibootInfo_APM_TABLE 0x00000400 // Is there a APM table?
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#define MultibootInfo_VIDEO_INFO 0x00000800 // Is there video information?
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// The symbol table for a.out.
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typedef struct
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{
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uint32 TableSize;
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uint32 StrSize;
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uint32 Address;
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uint32 Reserved;
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} MultibootAoutSymbolTable;
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// The section header table for ELF.
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typedef struct
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{
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uint32 Number;
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uint32 Size;
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uint32 Address;
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uint32 Shndx;
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} MultibootElfSectionHeaderTable;
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typedef struct
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{
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uint32 Flags; // Multiboot info version number
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uint32 MemoryLower; // Available memory from BIOS
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uint32 MemoryUpper;
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uint32 BootDevice; // "root" partition
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uint32 CommandLine; // Kernel command line
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uint32 ModulesCount; // Boot-Module list
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uint32 ModulesAddress;
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union
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{
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MultibootAoutSymbolTable AoutSymbols;
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MultibootElfSectionHeaderTable ElfSectionHeaderTable;
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} Symbols;
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uint32 MemoryMapLength; // Memory Mapping buffer
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uint32 MemoryMapAddress;
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uint32 DrivesLength; // Drive Info buffer
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uint32 DrivesAddress;
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uint32 ConfigurationTable; // ROM configuration table
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uint32 BootLoaderName; // Boot Loader Name
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uint32 ApmTable; // APM table
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uint32 VbeControlInfo; // Video
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uint32 VbeModeInfo;
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uint16 VbeMode;
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uint16 VbeInterfaceSegment;
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uint16 VbeInterfaceOffset;
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uint16 VbeInterfaceLength;
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} MultibootInfo;
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typedef struct
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{
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uint32 Size;
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uint64 Address;
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uint64 Length;
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#define MULTIBOOT_MEMORY_AVAILABLE 1
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#define MULTIBOOT_MEMORY_RESERVED 2
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uint32 Type;
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} __attribute__((packed)) MultibootMemoryMapEntry;
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typedef struct
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{
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// the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive
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uint32 ModuleStart;
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uint32 ModuleEnd;
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// Module command line
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uint32 CommandLine;
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// padding to take it to 16 bytes (must be zero)
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uint32 _Padding;
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} MultibootModule;
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#endif
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