Kevin O'Connor | 59a23bb | 2008-06-08 23:09:42 -0400 | [diff] [blame] | 1 | #ifndef __E820MAP_H |
| 2 | #define __E820MAP_H |
| 3 | |
| 4 | #include "types.h" // u64 |
| 5 | |
| 6 | #define E820_RAM 1 |
| 7 | #define E820_RESERVED 2 |
| 8 | #define E820_ACPI 3 |
| 9 | #define E820_NVS 4 |
| 10 | #define E820_UNUSABLE 5 |
Kevin O'Connor | b8d7a47 | 2008-06-21 11:43:32 -0400 | [diff] [blame] | 11 | #define E820_HOLE ((u32)-1) // Useful for removing entries |
Kevin O'Connor | 59a23bb | 2008-06-08 23:09:42 -0400 | [diff] [blame] | 12 | |
| 13 | struct e820entry { |
| 14 | u64 start; |
| 15 | u64 size; |
| 16 | u32 type; |
| 17 | }; |
| 18 | |
| 19 | void add_e820(u64 start, u64 size, u32 type); |
| 20 | void memmap_setup(); |
| 21 | void memmap_finalize(); |
Kevin O'Connor | a3855ad | 2009-08-16 21:59:40 -0400 | [diff] [blame] | 22 | struct e820entry *find_high_area(u32 size); |
Kevin O'Connor | 59a23bb | 2008-06-08 23:09:42 -0400 | [diff] [blame] | 23 | |
Kevin O'Connor | d995b3d | 2008-11-08 13:05:27 -0500 | [diff] [blame] | 24 | // e820 map storage (defined in system.c) |
Kevin O'Connor | df2c19a | 2009-01-17 20:07:09 -0500 | [diff] [blame] | 25 | extern struct e820entry e820_list[]; |
Kevin O'Connor | d995b3d | 2008-11-08 13:05:27 -0500 | [diff] [blame] | 26 | extern int e820_count; |
| 27 | |
Kevin O'Connor | df2c19a | 2009-01-17 20:07:09 -0500 | [diff] [blame] | 28 | // Space for exported bios tables (defined in misc.c) |
Kevin O'Connor | df2c19a | 2009-01-17 20:07:09 -0500 | [diff] [blame] | 29 | extern char BiosTableSpace[]; |
Kevin O'Connor | 59a23bb | 2008-06-08 23:09:42 -0400 | [diff] [blame] | 30 | |
| 31 | #endif // e820map.h |