multiboot.h

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/*******************************************************************************/
/*  © Université de Lille, The Pip Development Team (2015-2021)                */
/*                                                                             */
/*  This software is a computer program whose purpose is to run a minimal,     */
/*  hypervisor relying on proven properties such as memory isolation.          */
/*                                                                             */
/*  This software is governed by the CeCILL license under French law and       */
/*  abiding by the rules of distribution of free software.  You can  use,      */
/*  modify and/ or redistribute the software under the terms of the CeCILL     */
/*  license as circulated by CEA, CNRS and INRIA at the following URL          */
/*  "http://www.cecill.info".                                                  */
/*                                                                             */
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/*  economic rights,  and the successive licensors  have only  limited         */
/*  liability.                                                                 */
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/*  software by the user in light of its specific status of free software,     */
/*  that may mean  that it is complicated to manipulate,  and  that  also      */
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/*******************************************************************************/

#ifndef __MULTIBOOT_HEADER__
#define __MULTIBOOT_HEADER__

#include <stdint.h>

#define MULTIBOOT_FLAG_MEM     0x001 
#define MULTIBOOT_FLAG_DEVICE  0x002 
#define MULTIBOOT_FLAG_CMDLINE 0x004 
#define MULTIBOOT_FLAG_MODS    0x008 
#define MULTIBOOT_FLAG_AOUT    0x010 
#define MULTIBOOT_FLAG_ELF     0x020 
#define MULTIBOOT_FLAG_MMAP    0x040 
#define MULTIBOOT_FLAG_CONFIG  0x080 
#define MULTIBOOT_FLAG_LOADER  0x100 
#define MULTIBOOT_FLAG_APM     0x200 
#define MULTIBOOT_FLAG_VBE     0x400 

#define MULTIBOOT_MEMORY_AVAILABLE              1 
#define MULTIBOOT_MEMORY_RESERVED               2 
#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE           3 
#define MULTIBOOT_MEMORY_NVS                        4 
#define MULTIBOOT_MEMORY_BADRAM                     5 


struct multiboot
{
   uint32_t flags; 
   uint32_t mem_lower; 
   uint32_t mem_upper; 
   uint32_t boot_device; 
   uint32_t cmdline; 
   uint32_t mods_count; 
   uint32_t mods_addr; 
   uint32_t num; 
   uint32_t size;  
   uint32_t addr;  
   uint32_t shndx;  
   uint32_t mmap_length; 
   uint32_t mmap_addr; 
   uint32_t drives_length; 
   uint32_t drives_addr; 
   uint32_t config_table; 
   uint32_t boot_loader_name; 
   uint32_t apm_table; 
   uint32_t vbe_control_info; 
   uint32_t vbe_mode_info; 
   uint32_t vbe_mode; 
   uint32_t vbe_interface_seg; 
   uint32_t vbe_interface_off; 
   uint32_t vbe_interface_len; 
}  __attribute__((packed));

typedef struct multiboot_header multiboot_header_t; 

typedef struct multiboot_memory_map {
    unsigned int size; 
    unsigned int base_addr_low; 
        unsigned int base_addr_high; 
    unsigned int length_low; 
    unsigned int length_high; 
    unsigned int type; 
} multiboot_memory_map_t;

#endif // __MULTIBOOT_HEADER__