loader.h

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#ifndef _LOADER_H_INCLUDED
#define _LOADER_H_INCLUDED
 
#include <stdint.h>
 
static const uint64_t LFOS_LOADER_SIGNATURE = 0x17a15174545c8b4f;
 
// basic "what is this memory for" attributes
#define MEMORY_REGION_USABLE        (1ULL << 0)
#define MEMORY_REGION_FIRMWARE      (1ULL << 1)
#define MEMORY_REGION_CODE          (1ULL << 2)
#define MEMORY_REGION_RO            (1ULL << 3)
 
// "what kinda memory is this"
#define MEMORY_REGION_NV            (1ULL << 4)
#define MEMORY_REGION_MORE_RELIABLE (1ULL << 5)
 
// cacheability flags
#define MEMORY_REGION_UC    (1ULL << 16)
#define MEMORY_REGION_WC    (1ULL << 17)
#define MEMORY_REGION_WT    (1ULL << 18)
#define MEMORY_REGION_WB    (1ULL << 19)
#define MEMORY_REGION_UCE   (1ULL << 20)
 
#define MEMORY_REGION_WP    (1ULL << 21)
#define MEMORY_REGION_RP    (1ULL << 22)
#define MEMORY_REGION_XP    (1ULL << 23)
 
struct LoaderStruct {
    uint64_t signature;
 
    uint16_t size;
 
    ptr_t fb_location;
 
    uint16_t fb_width;
 
    uint16_t fb_height;
 
    uint8_t fb_bpp;
 
    uint8_t  fb_reserved1;
 
    uint16_t fb_stride;
 
    uint64_t num_mem_desc;
 
    uint64_t num_files;
 
    ptr_t firmware_info;
}__attribute__((packed));
 
struct MemoryRegion {
    ptr_t  start_address;
 
    size_t num_pages;
 
    uint64_t flags;
}__attribute__((packed));
 
struct FileDescriptor {
    char name[256];
 
    uint64_t size;
 
    uint64_t offset;
}__attribute__((packed));
 
#endif