MiAllocateLargeZeroPages

_MI_LARGEPAGE_MEMORY_INFO *__stdcall MiAllocateLargeZeroPages(
        UINT64 NumberOfPages,
        UINT64 PreferredNode,
        UINT64 ProtectionMask,
        UINT64 a4,
        UINT64 ZeroFillNeeded){
  int v5; 
  unsigned int v6; 
  int v8; 
  UINT64 v9; 
  INT64 v10; 
  _MI_PARTITION *v11; 
  int v12; 
  _MI_LARGEPAGE_MEMORY_INFO *v13; 
  __int64 v14; 
  INT64 v15; 
  INT64 v16; 
  int v17; 
  INT64 v18; 
  __int64 v19; 
  __int64 v20; 
  _QWORD *v21; 
  CHAR *v22; 
  INT64 v23; 
  CHAR **v24; 
  unsigned int v25; 
  unsigned int v26; 
  INT64 v27; 
  CHAR **v28; 
  CHAR *v29; 
  CHAR *v30; 
  INT64 ProtectionMaska; 
  INT64 a6; 
  int v34; 
  _RTL_AVL_TREE Tree; 
  UINT64 v36; 
  CHAR *v37; 
  CHAR **v38; 
  INT64 v39; 
  __int64 v40; 
  __int64 CurrentIrql; 
  UINT64 PreferredNodea; 
  _MI_PARTITION *Partition; 
  INT64 v44[2]; 
  __int128 v45; 
  __int128 v46; 
  INT64 v47; 
  int v48; 

  v5 = v48;
  Partition = (_MI_PARTITION *)NumberOfPages;
  v6 = a4;
  LODWORD(v36) = ZeroFillNeeded;
  v39 = v47;
  *(_OWORD *)v44 = 0i64;
  PreferredNodea = ProtectionMask;
  v45 = 0i64;
  v46 = 0i64;
  CurrentIrql = KeGetCurrentIrql();
  LODWORD(Tree.Root) = MiProtectionToCacheAttribute((unsigned int)ZeroFillNeeded);
  v12 = 0;
  v34 = 0;
  v38 = &v37;
  v13 = 0i64;
  v37 = (CHAR *)&v37;
  if( v14 )
  {
    do
    {
      LODWORD(a6) = v5;
      LODWORD(ProtectionMaska) = v8;
      LODWORD(v15) = MiGetFastLargePages((INT64)v11, v6, PreferredNode - (_QWORD)v13, v10, ProtectionMaska, a6);
      v16 = v15;
      if( !v15 )
      {
        v12 = v34;
        break;
      }
      v17 = v5 & 2;
      do
      {
        v18 = *(_QWORD *)v16;
        if( !v17 )
          MiIsFreshPfnFromZeroedList(v16);
        v40 = MiLargePageSizes[MiGetPfnPageSizeIndex(v16)];
        if( (_DWORD)v9 )
        {
          if( (_DWORD)v45 )
            goto LABEL_11;
          if( (unsigned __int8)CurrentIrql < 2u && MiCreateColorAnchors((INT64)v44, v6) )
          {
            HIDWORD(v44[1]) = Tree.Root;
            LODWORD(v44[1]) = v17 == 0 ? 2 : 0;
LABEL_11:
            v19 = (unsigned __int128)((v16 - (__int64)MmGetPfnDb()) * (__int128)0x2AAAAAAAAAAAAAABi64) >> 64;
            v20 = v40;
            MiInsertMdlPageNeedsZero((__int64)v44, ((unsigned __int64)v19 >> 63) + (v19 >> 3), v40);
            v12 = 1;
            v34 = 1;
            goto LABEL_15;
          }
          MiZeroLargePage((_MI_ZERO_THREAD_CONTEXT *)v16);
        }
        v21 = v38;
        if( *v38 != (CHAR *)&v37 )
          __fastfail(3u);
        v12 = v34;
        *(_QWORD *)v16 = &v37;
        *(_QWORD *)(v16 + 8) = v21;
        *v21 = v16;
        v38 = (CHAR **)v16;
        v20 = v40;
LABEL_15:
        v13 = (_MI_LARGEPAGE_MEMORY_INFO *)((char *)v13 + v20);
        v16 = v18;
      }
      while( v18 );
      v5 = v48;
      v8 = v36;
      v11 = Partition;
      v10 = PreferredNodea;
    }
    while( (unsigned __int64)v13 < PreferredNode );
  }
  v22 = v37;
  if( v37 != (CHAR *)&v37 )
  {
    v23 = v39;
    do
    {
      v24 = *(CHAR ***)v22;
      MiAssembleLargePagePfnList(v23, v22);
      v22 = (CHAR *)v24;
    }
    while( v24 != &v37 );
    LOBYTE(v5) = v48;
  }
  if( v12 )
  {
    MiZeroInParallel((_COLORED_PAGE_INFO *)v44, (UINT64)v22, v9);
    v25 = v45;
    v26 = 0;
    if( (_DWORD)v45 )
    {
      v27 = v39;
      v28 = (CHAR **)(v44[0] + 32);
      do
      {
        v29 = *v28;
        if( *v28 != (CHAR *)v28 )
        {
          do
          {
            v30 = *(CHAR **)v29;
            MiAssembleLargePagePfnList(v27, v29);
            v29 = v30;
          }
          while( v30 != (CHAR *)v28 );
          v25 = v45;
        }
        v28 += 6;
        ++v26;
      }
      while( v26 < v25 );
      LOBYTE(v5) = v48;
    }
    MiDeleteColorAnchors((INT64)v44);
  }
  if( v13 != (_MI_LARGEPAGE_MEMORY_INFO *)PreferredNode && (unsigned __int8)CurrentIrql < 2u && (v5 & 1) == 0 )
  {
    Tree.Root = 0i64;
    LODWORD(ProtectionMaska) = v36;
    MiFindLargePageMemory(
      Partition,
      (_MI_LARGEPAGE_MEMORY_INFO *)v6,
      PreferredNode - (_QWORD)v13,
      PreferredNodea,
      ProtectionMaska);
  }
  return v13;
}

Referenced by: