Added APIC & SMP stub

include/smp.hpp

@@ -0,0 +1,35 @@
+#ifndef __FENNIX_KERNEL_SMP_H__
+#define __FENNIX_KERNEL_SMP_H__
+
+#include <types.h>
+
+#define CPU_DATA_CHECKSUM 0xC0FFEE
+
+struct CPUData
+{
+    /**
+     * @brief CPU ID.
+     */
+    uint64_t ID;
+    /**
+     * @brief Local CPU error code.
+     */
+    long ErrorCode;
+    /**
+     * @brief Is CPU online?
+     */
+    bool IsActive;
+    /**
+     * @brief Architecture-specific CPU data.
+     */
+    void *Data;
+    /**
+     * @brief Checksum. Used to verify the integrity of the data. Must be equal to CPU_DATA_CHECKSUM (0xC0FFEE).
+     */
+    int Checksum;
+} __attribute__((packed));
+
+CPUData *GetCurrentCPU();
+CPUData *GetCPU(uint64_t ID);
+
+#endif // !__FENNIX_KERNEL_SMP_H__