Add running level management support

xtoskrnl/CMakeLists.txt

@@ -18,6 +18,7 @@ list(APPEND XTOSKRNL_SOURCE
     ${XTOSKRNL_SOURCE_DIR}/hl/globals.c
     ${XTOSKRNL_SOURCE_DIR}/hl/pic.c
     ${XTOSKRNL_SOURCE_DIR}/hl/${ARCH}/ioport.c
+    ${XTOSKRNL_SOURCE_DIR}/hl/${ARCH}/runlevel.c
     ${XTOSKRNL_SOURCE_DIR}/ke/apc.c
     ${XTOSKRNL_SOURCE_DIR}/ke/dpc.c
     ${XTOSKRNL_SOURCE_DIR}/ke/event.c
@@ -26,6 +27,7 @@ list(APPEND XTOSKRNL_SOURCE
     ${XTOSKRNL_SOURCE_DIR}/ke/krnlinit.c
     ${XTOSKRNL_SOURCE_DIR}/ke/kthread.c
     ${XTOSKRNL_SOURCE_DIR}/ke/panic.c
+    ${XTOSKRNL_SOURCE_DIR}/ke/runlevel.c
     ${XTOSKRNL_SOURCE_DIR}/ke/semphore.c
     ${XTOSKRNL_SOURCE_DIR}/ke/spinlock.c
     ${XTOSKRNL_SOURCE_DIR}/ke/timer.c