Initial implementation of the thread initialization

xtoskrnl/CMakeLists.txt

@@ -24,6 +24,7 @@ list(APPEND XTOSKRNL_SOURCE
     ${XTOSKRNL_SOURCE_DIR}/ke/spinlock.c
     ${XTOSKRNL_SOURCE_DIR}/ke/timer.c
     ${XTOSKRNL_SOURCE_DIR}/ke/${ARCH}/krnlinit.c
+    ${XTOSKRNL_SOURCE_DIR}/ke/${ARCH}/kthread.c
     ${XTOSKRNL_SOURCE_DIR}/ke/${ARCH}/proc.c
     ${XTOSKRNL_SOURCE_DIR}/mm/kpools.c
     ${XTOSKRNL_SOURCE_DIR}/mm/${ARCH}/pages.c