[SMP] Boot Application Processors

kernel/include/cpu.h

@@ -2,7 +2,17 @@
 
 #define MAX_NUMCPU 64
 
+#define CPU_STOPPED 0
+#define CPU_SIPI_SENT 1
+#define CPU_SIPI_REC 2
+#define CPU_STARTED 3
+#define CPU_FAILED 4
+
+#define TRAMPOLINE_ADDR 0x1000
+
 #define GS_OFFSET_CPU 0
+#define GS_OFFSET_STATE 40
+#define GS_OFFSET_STACK 48
 
 #ifndef __ASSEMBLER__
 #include <stdint.h>
@@ -17,6 +27,8 @@ typedef struct cpu_t
   uint64_t apic_id;
   uint64_t apic_ticks_per_us;
   uint64_t is_bsp;
+  uint64_t current_state; // 40
+  void *kernel_stack; // 48
   thread_t *current_thread;
   thread_t *last_thread;
   process_t *current_process;
@@ -31,7 +43,11 @@ extern unsigned int num_cpu;
 void acpi_init();
 void cpu_add(uint64_t id, uint64_t apic);
 void cpu_init();
+void init_cpu();
 cpu_t *get_cpu();
+void ap_init(cpu_t *cpu);
+
+void trampoline();
 #endif