I guess being unpriviliged this still guarantees the dragons are restricted your process, otherwise the chip would have a security problem. So as a heuristic yo

I guess being unpriviliged this still guarantees the dragons are restricted your process, otherwise the chip would have a security problem. So as a heuristic you could fork your process, and try to execute SIMD operations (detecting known nonstandard versions and failing them), and if results seems fine send a "ok" flag up a pipe. (or compile this into a separate test executable)