[SMP] Cpu initialization cleanup

kernel/include/cpu.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#define MAX_NUMCPU 64
+
+#define GS_OFFSET_CPU 0
+
+#ifndef __ASSEMBLER__
+#include <stdint.h>
+#include <gdt.h>
+#include <process.h>
+#include <thread.h>
+
+typedef struct cpu_t
+{
+  uint64_t cpu;
+  uint64_t id;
+  uint64_t apic_id;
+  uint64_t apic_ticks_per_us;
+  uint64_t is_bsp;
+  thread_t *current_thread;
+  thread_t *last_thread;
+  process_t *current_process;
+  uint64_t gdt[5];
+  struct gdtp_st gdt_p;
+  thread_t *scheduler;
+}__attribute__((packed)) cpu_t;
+
+extern cpu_t cpus[];
+extern unsigned int num_cpu;
+
+void acpi_init();
+void cpu_add(uint64_t id, uint64_t apic);
+void cpu_init();
+cpu_t *get_cpu();
+#endif
+
+

kernel/include/process.h

@@ -3,6 +3,7 @@ typedef struct process_st process_t;
 #include <stdint.h>
 #include <thread.h>
 #include <mem.h>
+#include <cpu.h>
 
 typedef struct process_st
 {
@@ -23,9 +24,8 @@ typedef struct process_st
 
 #define process_alive(proc) ((proc)->state == PROC_STATE_READY || (proc)->state == PROC_STATE_RUNNING)
 
-process_t *current_process;
-#define get_current_process() (current_process)
-#define set_current_process(proc) (current_process = (proc))
+#define get_current_process() (get_cpu()->current_process)
+#define set_current_process(proc) (get_cpu()->current_process = (proc))
 
 process_t *process_spawn(process_t *parent);
 void process_attach(process_t *proc, thread_t *th);

kernel/include/thread.h

@@ -4,6 +4,7 @@ typedef struct thread_st thread_t;
 #include <list.h>
 #include <process.h>
 #include <int.h>
+#include <cpu.h>
 
 #define THREAD_STACK_SIZE 0x1000-sizeof(thread_t)
 
@@ -40,9 +41,8 @@ typedef struct thread_stack_st
   thread_t tcb;
 } thread_stack_t;
 
-thread_t *current_thread;
-#define get_current_thread() (current_thread)
-#define set_current_thread(new) (current_thread = (new))
+#define get_current_thread() (get_cpu()->current_thread)
+#define set_current_thread(new) (get_cpu()->current_thread = (new))
 
 thread_t *new_thread(void (*func)(void));
 void switch_thread(thread_t *old, thread_t *new);