HalpMiscGetParameters

VOID __stdcall HalpMiscGetParameters(_LOADER_PARAMETER_BLOCK *LoaderBlock){
  CHAR *v2; 
  CHAR *v3; 
  CHAR *v4; 
  char IsHvUsedForReboot; 
  CHAR *v6; 
  CHAR v7; 
  NTSTATUS v8; 
  CHAR v9; 
  NTSTATUS v10; 
  CHAR v11; 
  CHAR v12; 
  NTSTATUS v13; 
  if( (unsigned int)HalpInterruptModel() == 1 )
    HalpMiscDiscardLowMemory = 1;
  HalpInterruptBlockHyperthreading = HalpProcIsSmtDisabled((INT64)LoaderBlock);
  if( HalpInterruptBlockHyperthreading )
  {
    if( !LoaderBlock )
      return;
    if( (*(_DWORD *)(*((_QWORD *)LoaderBlock + 30) + 132i64) & 0x200) == 0 )
      HalpInterruptStartHyperthreadSiblings = 1;
  }
  if( LoaderBlock )
  {
    v2 = (CHAR *)*((_QWORD *)LoaderBlock + 27);
    if( v2 )
    {
      strstr(v2, "SAFEBOOT:");
      if( strstr(v2, "ONECPU") )
        HalpInterruptProcessorCap = 1;
      if( strstr(v2, "USEPHYSICALAPIC") )
        HalpInterruptPhysicalModeOnly = 1;
      if( strstr(v2, "BREAK") )
        HalpMiscDebugBreakRequested = 1;
      v3 = strstr(v2, "MAXPROCSPERCLUSTER");
      if( v3 )
      {
        while( 1 )
        {
          v7 = *v3;
          if( !*v3 || v7 == 32 || (unsigned __int8)(v7 - 48) <= 9u )
            break;
          ++v3;
        }
        v8 = atoi(v3);
        HalpInterruptClusterModeForced = 1;
        if( v8 )
          HalpInterruptMaxClusterSize = v8;
      }
      v4 = strstr(v2, "MAXAPICCLUSTER");
      if( v4 )
      {
        while( 1 )
        {
          v9 = *v4;
          if( !*v4 || v9 == 32 || (unsigned __int8)(v9 - 48) <= 9u )
            break;
          ++v4;
        }
        v10 = atoi(v4);
        if( v10 )
          LODWORD(HalpInterruptMaxCluster) = v10;
      }
      if( strstr(v2, "X2APICPOLICY=ENABLE") )
        HalpInterruptX2ApicPolicy = 1;
      if( strstr(v2, "X2APICPOLICY=DISABLE") )
        HalpInterruptX2ApicPolicy = 0;
      if( strstr(v2, "USELEGACYAPICMODE") )
        HalpInterruptX2ApicPolicy = 0;
      if( strstr(v2, "TSCSYNCPOLICY=LEGACY") )
        HalpTscSyncPolicy = 1;
      if( strstr(v2, "TSCSYNCPOLICY=ENHANCED") )
        HalpTscSyncPolicy = 2;
      if( strstr(v2, "SYSTEMWATCHDOGPOLICY=DISABLED") )
      {
        HalpTimerWatchdogDisable = 1;
      }
      else if( strstr(v2, "SYSTEMWATCHDOGPOLICY=PHYSICALONLY") )
      {
        HalpTimerWatchdogPhysicalOnly = 1;
      }
      if( strstr(v2, "CONFIGACCESSPOLICY=DISALLOWMMCONFIG") )
        HalpAvoidMmConfigAccessMethod = 1;
      if( strstr(v2, "MSIPOLICY=FORCEDISABLE") )
      {
        v11 = 0;
      }
      else
      {
        if( !strstr(v2, "FORCEMSI") )
        {
LABEL_31:
          if( (unsigned __int8)HalpIsHvPresent() )
          {
            HalpHvPresent = 1;
            if( (unsigned __int8)HalpIsPartitionCpuManager() )
              *(_BYTE *)HalpHvCpuManager = 1;
            IsHvUsedForReboot = HalpIsHvUsedForReboot();
          }
          else
          {
            IsHvUsedForReboot = HalpIsXboxNanovisorPresent();
          }
          if( IsHvUsedForReboot )
            HalpHvUsedForReboot = 1;
          if( strstr(v2, "FIRSTMEGABYTEPOLICY=USEALL")
            || HalpIsMicrosoftCompatibleHvLoaded() && !*(_BYTE *)HalpHvCpuManager )
          {
            HalpMiscDiscardLowMemory = 0;
          }
          if( strstr(v2, "USEPLATFORMCLOCK") )
            HalpTimerPlatformSourceForced = 1;
          if( strstr(v2, "USEPLATFORMTICK") )
            HalpTimerPlatformClockSourceForced = 1;
          v6 = strstr(v2, "GROUPSIZE");
          if( v6 )
          {
            while( 1 )
            {
              v12 = *v6;
              if( !*v6 || v12 == 32 || (unsigned __int8)(v12 - 48) <= 9u )
                break;
              ++v6;
            }
            v13 = atoi(v6);
            HalpMaximumGroupSize = v13;
            if( (unsigned int)(v13 - 1) > 0x3F || ((v13 - 1) & v13) != 0 )
              HalpMaximumGroupSize = 64;
          }
          strstr(v2, "HALTPROFILINGPOLICY=BLOCKED");
          strstr(v2, "HALTPROFILINGPOLICY=RELAXED");
          strstr(v2, "HALTPROFILINGPOLICY=RESTRICTED");
          return;
        }
        v11 = 1;
      }
      HalpInterruptSetMsiOverride(v11);
      goto LABEL_31;
    }
  }
}

Referenced by: