Update timers support

xtoskrnl/includes/kei.h

@@ -63,6 +63,10 @@ KePanicEx(IN ULONG Code,
           IN ULONG_PTR Parameter3,
           IN ULONG_PTR Parameter4);
 
+XTAPI
+ULONGLONG
+KeQueryTimer(IN PKTIMER Timer);
+
 XTAPI
 LONG
 KeSetEvent(IN PKEVENT Event,