<desc>Combinations of (OS, OS version, OpenCL platform vendor, OpenCL device name, OpenCL driver version) that are known to be good. Has higher priority than OpenCLBlackList. Each entry is a string consisting of five parts separated by slashes. In case a slash occurs inside a part, it is prefixed by a backslash. And in case a backslash occurs inside a part, it is also prefixed by another backslash. Any part might contain a single asterisk as a wildcard, matching any value, but there is no more generic regexp support.</desc>