KiDisconnectInterruptCommon

__int64 __fastcall KiDisconnectInterruptCommon(int a1, __int64 a2, struct _KEVENT *a3){
  _ETHREAD *v4; 
  unsigned int v7; 
  char v8; 
  UINT64 *v9; 
  _INTERRUPT_CONNECTION_DATA *v10; 
  char OldIrql[8]; 
  __int128 v13; 
  __int64 v14; 
  VOID *a1a[2]; 
  __int64 v16; 
  struct _GROUP_AFFINITY PreviousAffinity; 
  a1a[1] = a3;
  a1a[0] = 0i64;
  v14 = 0i64;
  v16 = 0i64;
  v4 = *(_ETHREAD **)(a2 + 152);
  v13 = 0i64;
  OldIrql[0] = 0;
  v7 = -1073741585;
  v8 = 0;
  PreviousAffinity = 0i64;
  if( v4 != (_ETHREAD *)KeGetCurrentThread() )
  {
    LOWORD(v13) = 1;
    v14 = (__int64)&v13 + 8;
    *((_QWORD *)&v13 + 1) = (char *)&v13 + 8;
    a1a[0] = &v13;
    BYTE2(v13) = 6;
    DWORD1(v13) = 0;
  }
  if( a1 )
  {
    v9 = (UINT64 *)(KiGlobalSecondaryIDT + 48i64 * (unsigned int)(*(_DWORD *)(a2 + 88) - 256));
    KiAcquireSecondaryInterruptConnectLock(v9, (UINT8 *)OldIrql);
  }
  else
  {
    v9 = 0i64;
    KiAcquireInterruptConnectLock(*(unsigned int *)(a2 + 96), (UINT8 *)OldIrql, &PreviousAffinity);
  }
  if( *(_BYTE *)(a2 + 95) && (*(_DWORD *)(a2 + 104) & 2) == 0 )
  {
    if( *(_WORD *)(a2 + 102) )
    {
      _InterlockedOr((volatile signed __int32 *)(a2 + 104), 2u);
      v8 = 1;
      *(_QWORD *)(a2 + 144) = a1a;
    }
    else
    {
      if( !a1 )
      {
        v7 = KiDisconnectInterruptInternal((_KINTERRUPT *)a2, (_INTERRUPT_CONNECTION_DATA *)a3);
        goto LABEL_10;
      }
      v7 = KiDisconnectSecondaryInterruptInternal((_KINTERRUPT *)a2, v10);
    }
  }
  if( a1 )
  {
    KxReleaseSpinLock(v9);
    __writecr8((unsigned __int8)OldIrql[0]);
    goto LABEL_11;
  }
LABEL_10:
  __writecr8((unsigned __int8)OldIrql[0]);
  KeRevertToUserGroupAffinityThread(&PreviousAffinity);
LABEL_11:
  if( a1a[0] && v8 )
  {
    KiSignalWaitDisconnectLock(a1a[0], 1);
    return(unsigned int)v16;
  }
  return v7;
}

Referenced by: