VOID __stdcall IopAcquireGlobalPassiveInterruptListLock(UINT8 *OldIrql){ UINT8 CurrentIrql; CurrentIrql = KeGetCurrentIrql(); __writecr8(0xCui64); *OldIrql = CurrentIrql; KxAcquireSpinLock(&qword_140C45258); }