4 #include "types.h" // u64
7 #define E820_RESERVED 2
10 #define E820_UNUSABLE 5
11 #define E820_HOLE ((u32)-1) // Useful for removing entries
19 void add_e820(u64 start, u64 size, u32 type);
20 void memmap_prepboot(void);
22 // A typical OS page size
23 #define PAGE_SIZE 4096
26 extern struct e820entry e820_list[];
27 extern int e820_count;