IopAcquireGlobalPassiveInterruptListLock

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

Referenced by:

IopDereferencePassiveInterruptBlock
IopFindPassiveInterruptBlock
IopInsertPassiveInterruptBlock