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