#include #include #include #include #include #include void ap_startup(void) { load_idt(&idt_pointer); load_gdt(&gdt_pointer); load_pt_lvl4(page_table_lvl4); lock(cnt_lock); printf("curr_cpu_apic_id: 0x%x\n", curr_cpu_apic_id()); cnt++; unlock(cnt_lock); for(;;) { __asm__ volatile ("hlt;"); } }