MiDeleteUltraMapContext

VOID __stdcall MiDeleteUltraMapContext(INT64 a1, _XSTATE_CONFIGURATION *a2){
  __int64 v3; 
  _QWORD *v4; 
  UINT64 v5; 
  struct _KPRCB *CurrentPrcb; 
  __int64 CachedResidentAvailable; 
  bool v8; 
  signed __int32 v9; 

  if( *(_BYTE *)(a1 + 24) )
  {
    v3 = 2i64;
    MiGetUltraMapping((_MI_ZERO_THREAD_CONTEXT *)a1, (INT64)a2);
    _InterlockedDecrement((_DWORD *)&stru_140C4DB30 + 911);
    v4 = (_QWORD *)(a1 + 8);
    v5 = 0i64;
    do
    {
      if( *v4 != -1i64 )
      {
        MiReleaseFreshPage(&MmGetPfnDb()[*v4]);
        ++v5;
        *v4 = -1i64;
      }
      ++v4;
      --v3;
    }
    while( v3 );
    *(_BYTE *)(a1 + 24) = 0;
    if( v5 )
    {
      MiReturnCommit(&Irp, v5);
      CurrentPrcb = KeGetCurrentPrcb();
      CachedResidentAvailable = (int)CurrentPrcb->CachedResidentAvailable;
      if( (_DWORD)CachedResidentAvailable != -1 )
      {
        if( v5 + CachedResidentAvailable <= 0x100 )
        {
          do
          {
            if( v5 >= 0x80000 )
              break;
            v9 = _InterlockedCompareExchange(
                   (volatile signed __int32 *)&CurrentPrcb->CachedResidentAvailable,
                   CachedResidentAvailable + v5,
                   CachedResidentAvailable);
            v8 = (_DWORD)CachedResidentAvailable == v9;
            LODWORD(CachedResidentAvailable) = v9;
            if( v8 )
              return;
          }
          while( v9 != -1 && v5 + v9 <= 0x100 );
        }
        if( (int)CachedResidentAvailable > 192
          && (_DWORD)CachedResidentAvailable != -1
          && (_DWORD)CachedResidentAvailable == _InterlockedCompareExchange(
                                                  (volatile signed __int32 *)&CurrentPrcb->CachedResidentAvailable,
                                                  192,
                                                  CachedResidentAvailable) )
        {
          v5 += (int)CachedResidentAvailable - 192;
        }
      }
      if( v5 )
        _InterlockedExchangeAdd64((_QWORD *)&stru_140C50B28 + 883, v5);
    }
  }
}

Referenced by: