KiCallInterruptServiceRoutine

VOID __fastcall KiCallInterruptServiceRoutine(_KINTERRUPT *Interrupt, UINT8 AcquireSpinlock){
  _BYTE *RedirectObject; 
  struct _KPRCB *CurrentPrcb; 
  _QWORD *IsrDpcStats; 
  unsigned __int64 v7; 
  unsigned __int64 v8; 
  unsigned __int8 v9; 
  unsigned __int64 v10; 
  unsigned int DpcWatchdogSequenceNumber; 
  unsigned __int64 v12; 
  unsigned __int64 *ActualLock; 
  int v14; 
  unsigned int v15; 
  NTSTATUS FirstSetRightGroupAffinity; 
  unsigned __int64 v17; 

  if( Interrupt->Vector - 48 <= 0x9F && !KiForceIdleDisabled )
  {
    if( (_DWORD)KiForceIdleState == 4 )
    {
      KiResetForceIdle(1i64, 0);
    }
    else if( (unsigned int)(KiForceIdleState - 1) <= 1 )
    {
      KiCheckAndRearmForceIdle();
    }
  }
  if( Interrupt->SynchronizeIrql )
  {
    RedirectObject = Interrupt->RedirectObject;
    if( !RedirectObject || !RedirectObject[16] )
      goto LABEL_4;
    v14 = 0;
    v15 = KiProcessorIndexToNumberMappingTable[KeGetPcr()->Prcb.Number];
    if( v15 >> 6 == *((unsigned __int16 *)RedirectObject + 4) )
      v14 = 1;
    if( ((unsigned int)(*(_QWORD *)RedirectObject >> (v15 & 0x3F)) & v14) == 0 )
    {
      FirstSetRightGroupAffinity = KeFindFirstSetRightGroupAffinity((INT64)Interrupt->RedirectObject);
      KiIntRedirectQueueRequestOnProcessor(FirstSetRightGroupAffinity, Interrupt->Vector);
    }
    else
    {
LABEL_4:
      CurrentPrcb = KeGetCurrentPrcb();
      IsrDpcStats = CurrentPrcb->IsrDpcStats;
      Interrupt->IsrDpcStats.IsrActive = 1;
      CurrentPrcb->IsrDpcStats = &Interrupt->IsrDpcStats;
      v7 = __rdtsc();
      Interrupt->IsrDpcStats.IsrTimeStart = v7;
      v8 = v7;
      if( AcquireSpinlock )
      {
        ActualLock = Interrupt->ActualLock;
        if( _interlockedbittestandset64((volatile signed __int32 *)ActualLock, 0i64) )
          KxWaitForSpinLockAndAcquire(ActualLock);
      }
      v9 = Interrupt->ServiceRoutine(Interrupt, Interrupt->ServiceContext);
      if( AcquireSpinlock )
        _InterlockedAnd64((volatile signed __int64 *)Interrupt->ActualLock, 0i64);
      v10 = __rdtsc();
      DpcWatchdogSequenceNumber = CurrentPrcb->DpcWatchdogSequenceNumber;
      v12 = v10 - Interrupt->IsrDpcStats.IsrTimeStart;
      if( DpcWatchdogSequenceNumber != Interrupt->IsrDpcStats.DpcWatchdog.SequenceNumber )
      {
        Interrupt->IsrDpcStats.DpcWatchdog.SequenceNumber = DpcWatchdogSequenceNumber;
        Interrupt->IsrDpcStats.DpcWatchdog.IsrTime = 0i64;
        Interrupt->IsrDpcStats.DpcWatchdog.IsrCount = 0i64;
        Interrupt->IsrDpcStats.DpcWatchdog.DpcTime = 0i64;
        Interrupt->IsrDpcStats.DpcWatchdog.DpcCount = 0i64;
      }
      Interrupt->IsrDpcStats.IsrTime += v12;
      Interrupt->IsrDpcStats.DpcWatchdog.IsrTime += v12;
      if( IsrDpcStats != (_QWORD *)1 )
      {
        v17 = v10 - v8;
        if( *((_BYTE *)IsrDpcStats + 48) )
          IsrDpcStats[1] += v17;
        else
          IsrDpcStats[4] += v17;
      }
      CurrentPrcb->IsrDpcStats = IsrDpcStats;
      Interrupt->IsrDpcStats.IsrActive = 0;
      if( v9 )
      {
        ++Interrupt->IsrDpcStats.IsrCount;
        ++Interrupt->IsrDpcStats.DpcWatchdog.IsrCount;
      }
    }
  }
  else
  {
    Interrupt->ServiceRoutine(Interrupt, Interrupt->ServiceContext);
  }
}

Referenced by: