ARMv8‑A MTE Tag Limit: Maximum Usable Tags on aarch64
Determine the practical limit on distinct tags usable for MTE Determine the practical limit on distinct tags usable for MTE when deploying memory safety checks on aarch64 Linux, considering the 4‑bit tag field and any reserved values. The architecture defines 4 bits, giving 16 possible values; tag 0 is conventionally used to indicate untagged memory, leaving