9 /* Physical memory size, in 4 kB pages. */
10 extern size_t ram_pages;
12 /* Page directory with kernel mappings only. */
13 extern uint32_t *base_page_dir;
16 If false (default), use round-robin scheduler.
17 If true, use multi-level feedback queue scheduler. */
18 extern bool enable_mlfqs;
22 If false (default), use LRU page replacement policy.
23 If true, use random page replacement policy. */
24 extern bool enable_random_paging;
27 /* -q: Power off when kernel tasks complete? */
28 extern bool power_off_when_done;
30 void power_off (void) NO_RETURN;
32 #endif /* threads/init.h */