PnpValidateRegistryString

char __fastcall PnpValidateRegistryString(_DWORD *a1){
  char v1; 

  if( a1[1] != 1 || !PnpValidateStringData((__int64)a1 + (unsigned int)a1[2], a1[3]) )
    return 0;
  return v1;
}

Referenced by:

PiDevCfgBuildIndirectString
PiDevCfgQueryPolicyStringList
PiDevCfgResolveVariable
PiDevCfgResolveVariableDeviceProperty
PiDevCfgResolveVariableFormatString
PiDevCfgResolveVariableKeyHandle
PiDevCfgResolveVariableKeyValue
PiDevCfgResolveVariableSwitchCase