HalpInterruptRemap

__int64 __fastcall HalpInterruptRemap(unsigned int a1, __int64 a2, int *a3, char a4, __int64 a5, INT64 a6){
  int *v6; 
  char v7; 
  _DWORD *v8; 
  INT64 v9; 
  unsigned __int64 v10; 
  __int128 *v11; 
  unsigned int v12; 
  unsigned int v13; 
  int BestRouting; 
  int v15; 
  int v16; 
  unsigned int v17; 
  _DWORD *v18; 
  INT64 v19; 
  int v20; 
  unsigned int v21; 
  __int64 v22; 
  ULONG_PTR *v23; 
  INT64 v24; 
  int v25; 
  int v26; 
  UINT64 v28; 
  UINT64 IrtIndex; 
  INT64 v30; 
  INT64 v31; 
  __int64 v32; 
  INT64 v33[2]; 
  INT64 a2a[2]; 
  __int128 v35; 
  __int64 v36; 
  int *v37; 
  CHAR v38; 
  v38 = a4;
  v37 = a3;
  v6 = (int *)a5;
  HIDWORD(v30) = 0;
  *(_OWORD *)v33 = 0i64;
  LODWORD(IrtIndex) = -1;
  v7 = *(_BYTE *)(a5 + 8);
  v8 = (_DWORD *)(a5 + 40);
  v9 = a5 + 24;
  v10 = (unsigned __int64)*(unsigned __int8 *)(a5 + 4) >> 4;
  *(_OWORD *)a2a = 0i64;
  v11 = &HalpHwToSwIrqlMap;
  LODWORD(a2a[0]) = -1;
  v12 = -1;
  v32 = a5 + 40;
  v13 = a6;
  BestRouting = -1073741823;
  *((_BYTE *)&HalpHwToSwIrqlMap + v10) = v7;
  v36 = 0i64;
  LODWORD(v33[0]) = v6[3];
  LODWORD(v33[1]) = v6[4];
  LODWORD(v36) = v6[1];
  v15 = *v6;
  LODWORD(v30) = 1;
  v31 = v9;
  HIDWORD(v33[1]) = 16;
  HIDWORD(a2a[0]) = 1;
  v35 = 0i64;
  if( !v15 )
  {
    v21 = v6[14];
    a5 = 0i64;
    if( (int)HalpInterruptGsiToLine(v21, &a5) >= 0 )
    {
      HalpInterruptApplyOverrides(&a5, v33, &v33[1]);
      if( LODWORD(v33[0]) == 3 )
      {
        LODWORD(v33[1]) = 0;
        BYTE4(v33[0]) = 1;
        LODWORD(v33[0]) = 2;
      }
      else if( LODWORD(v33[0]) == 4 )
      {
        LODWORD(v33[1]) = 0;
        BYTE4(v33[0]) = 1;
        LODWORD(v33[0]) = 1;
      }
      else
      {
        BYTE4(v33[0]) = 0;
      }
      v23 = HalpInterruptLookupController(a5);
      if( v23 )
      {
        BestRouting = HalpInterruptDestinationToTarget(v22, (__int64)&v30, (__int64)&a2a[1]);
        if( BestRouting < 0 )
        {
LABEL_10:
          HalpInterruptLastProblem = 19;
          goto LABEL_42;
        }
        BestRouting = HalpInterruptFindBestRouting((UINT64 *)&a5, a2a[0]);
        if( BestRouting < 0 )
          return(unsigned int)BestRouting;
        HalpInterruptRemapUpdateDeliveryMode((INT64)v6, (INT64)v33);
        if( (*(_DWORD *)(HalpInterruptController + 220) & 0x100) != 0 && (unsigned int)HalpInterruptModel() == 1 )
        {
          if( (*v8 & 0x40000000) == 0 )
          {
            v25 = HalpIrtAllocateIndex(&IrtIndex, 1i64);
            v12 = IrtIndex;
            BestRouting = v25;
            if( v25 < 0 )
              goto LABEL_7;
            *v8 ^= (IrtIndex ^ *v8) & 0x3FFFFFFF;
          }
          HalpIommuUpdateRemappingTableEntry(0, *v8 & 0x3FFFFFFF, (INT64)v33);
          v26 = *v8 & 0x3FFFFFFF;
          LODWORD(a2a[1]) = 7;
          LODWORD(v35) = v26;
          v9 = (INT64)(v6 + 6);
        }
        if( qword_140C4A168 )
        {
          BestRouting = HalpHvMapDeviceInterrupt(*((_DWORD *)v23 + 58), v24, (INT64)v33, v9);
          if( BestRouting < 0 )
            goto LABEL_7;
        }
        HIDWORD(v33[1]) &= ~0x10u;
        v20 = HalpInterruptSetRemappedLineStateInternal((__int64)v23, (int *)&a5, (__int64)v33);
        goto LABEL_40;
      }
      HalpInterruptLastProblem = 17;
    }
    else
    {
      HalpInterruptLastProblem = 18;
    }
    return(unsigned int)-1073741811;
  }
  if( v15 != 3 )
  {
    HalpInterruptLastProblem = 19;
    return(unsigned int)BestRouting;
  }
  if( (*(_DWORD *)(HalpInterruptController + 220) & 0x100) != 0 )
  {
    if( (*v8 & 0x40000000) != 0 )
    {
      v12 = *v8 & 0x3FFFFFFF;
    }
    else
    {
      v16 = HalpIrtAllocateIndex(&IrtIndex, v13);
      v12 = IrtIndex;
      BestRouting = v16;
      if( v16 < 0 )
      {
LABEL_7:
        HalpInterruptLastProblem = 31;
        goto LABEL_42;
      }
    }
    BestRouting = HalpInterruptDestinationToTarget((__int64)v11, (__int64)&v30, (__int64)&a2a[1]);
    if( BestRouting < 0 )
      goto LABEL_10;
    HalpInterruptRemapUpdateDeliveryMode((INT64)v6, (INT64)v33);
    v17 = 0;
    if( v13 )
    {
      v18 = v8;
      do
      {
        *v18 ^= (*v18 ^ (v17 + v12)) & 0x3FFFFFFF;
        v19 = *v18 & 0x3FFFFFFF;
        LODWORD(v36) = *(v18 - 9);
        HalpIommuUpdateRemappingTableEntry(1, v19, (INT64)v33);
        ++v17;
        v18 += 22;
      }
      while( v17 < v13 );
    }
    a3 = v37;
    a4 = v38;
  }
  if( qword_140C4A168 )
  {
    LODWORD(v28) = v13;
    BestRouting = HalpHvMapDeviceMsiRange((INT64)v11, a2, (INT64 *)a3, a4, (INT64)v6, v28);
    if( BestRouting < 0 )
      goto LABEL_7;
    goto LABEL_41;
  }
  v20 = HalpPopulateMsiMessages((INT64)&v30, (INT64)v6, v13);
LABEL_40:
  BestRouting = v20;
  if( v20 >= 0 )
  {
LABEL_41:
    BestRouting = 0;
LABEL_42:
    if( BestRouting >= 0 )
      return(unsigned int)BestRouting;
  }
  if( v12 != -1 && (*v8 & 0x40000000) == 0 )
    HalpIrtFreeIndex(v12, v13);
  return(unsigned int)BestRouting;
}

Referenced by: