MiCombineIdenticalPages

NTSTATUS __stdcall MiCombineIdenticalPages(
        _MI_PARTITION *Partition,
        PVOID StopHandle,
        UINT64 CombineFlags,
        INT8 PreviousMode,
        UINT64 *OutputPagesCombined){
  int v6; 
  __int64 v7; 
  struct _DMA_ADAPTER *v8; 
  struct _DMA_ADAPTER *v9; 
  __int64 v10; 
  NTSTATUS v11; 
  NTSTATUS v12; 
  _ETHREAD *CurrentThread; 
  INT64 v14; 
  unsigned int NextPageColor; 
  INT16 v16; 
  NTSTATUS v17; 
  NTSTATUS v19; 
  PVOID Object; 
  PVOID v21; 
  int v22[2]; 
  _MI_PARTITION *v23; 
  _QWORD *v24; 
  __int64 v25[2]; 
  __int128 v26; 
  __int64 result[10]; 
  INT64 a1[4]; 
  struct _DMA_ADAPTER *v29; 
  __int64 *v30; 
  int *v31; 
  int v32; 
  int v33; 
  INT64 v34[16]; 
  __int128 v35; 
  __int128 v36; 
  _KAPC_STATE ApcState; 
  _QWORD *v38; 
  v23 = Partition;
  v6 = CombineFlags;
  v24 = v38;
  v7 = PreviousMode;
  memset((INT64)result, 0i64);
  v35 = 0i64;
  v36 = 0i64;
  memset((INT64)a1, 0i64);
  *v38 = 0i64;
  v8 = 0i64;
  v9 = 0i64;
  memset(&ApcState, 0, sizeof(ApcState));
  if( (v6 & 0xFFFFFFFC) != 0 )
    return -1073741583;
  v10 = -1i64;
  if( (v6 & 2) != 0 )
  {
    if( v7 )
      v10 = v7;
    v7 = v10;
  }
  else if( v7 )
  {
    return -1073741811;
  }
  if( (dword_140CFA178 & 1) != 0 )
    return -1073741637;
  if( !StopHandle
    || (Object = 0i64,
        v11 = ObReferenceObjectByHandle(
                StopHandle,
                1u,
                (POBJECT_TYPE)ExEventObjectType,
                (KPROCESSOR_MODE)OutputPagesCombined,
                &Object,
                0i64),
        v9 = (struct _DMA_ADAPTER *)Object,
        v12 = v11,
        v11 >= 0) )
  {
    if( v7 )
    {
      v21 = 0i64;
      v19 = ObReferenceObjectByHandle(
              (HANDLE)v7,
              0x18u,
              (POBJECT_TYPE)PsProcessType,
              (KPROCESSOR_MODE)OutputPagesCombined,
              &v21,
              0i64);
      v8 = (struct _DMA_ADAPTER *)v21;
      v12 = v19;
      if( v19 < 0 )
      {
LABEL_14:
        if( v8 )
        {
          KiUnstackDetachProcess(&ApcState, 0i64);
          HalPutDmaAdapter(v8);
        }
        goto LABEL_16;
      }
      KiStackAttachProcess((_KPROCESS *)v21, 0i64, &ApcState);
    }
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    v14 = (INT64)v23 + 6448;
    if( (v6 & 1) == 0 || v23 == (_MI_PARTITION *)&MiSystemPartition )
    {
      --*((_WORD *)CurrentThread + 242);
      MiCombiningInProgress((INT64 *)v14, (INT64)result, 1i64);
      v22[0] = 0;
      v22[1] = -1;
      v25[0] = qword_140C4EAD8;
      v25[1] = qword_140C4EAE0;
      v30 = v25;
      v31 = v22;
      a1[2] = (INT64)result;
      a1[3] = (INT64)&v35;
      v32 = 2;
      a1[0] = v14;
      a1[1] = (INT64)v9;
      v33 = v6;
      v26 = 0i64;
      MiInitializePageColorBase(*((_QWORD *)KeGetCurrentThread() + 23) + 1664i64, 0i64, (INT64)&v26);
      NextPageColor = MiGetNextPageColor((INT64)&v26);
      if( (unsigned int)MiCreateUltraThreadContext((INT64)v34, NextPageColor, 8i64) )
      {
        if( (v6 & 2) != 0 )
        {
          v29 = v8 + 104;
          v17 = MiCombineWorkingSet((INT64)a1);
        }
        else
        {
          v29 = 0i64;
          MiCombineAllPhysicalMemory((INT64)a1, v16);
        }
        v12 = v17;
        MiDeleteUltraThreadContext((INT64)v34);
        *v24 = v35;
        _InterlockedIncrement((volatile signed __int32 *)(v14 + 384));
        _InterlockedExchangeAdd64((volatile signed __int64 *)(v14 + 376), *((unsigned __int64 *)&v35 + 1));
        _InterlockedExchangeAdd64((volatile signed __int64 *)(v14 + 360), v36);
        _InterlockedExchangeAdd64((volatile signed __int64 *)(v14 + 368), *((unsigned __int64 *)&v36 + 1));
      }
      else
      {
        v12 = -1073741670;
      }
      MiCombiningInProgress((INT64 *)v14, (INT64)result, 0i64);
      KeLeaveCriticalRegionThread((__int64)CurrentThread);
    }
    else
    {
      v12 = -1073741637;
    }
    goto LABEL_14;
  }
LABEL_16:
  if( v9 )
    HalPutDmaAdapter(v9);
  return v12;
}

Referenced by: