To clarify, the sysctl is related to a 3rd-party kernel extension. That kernel extension is a convenient wrapper around the actual interface which is a per-thre

To clarify, the sysctl is related to a 3rd-party kernel extension. That kernel extension is a convenient wrapper around the actual interface which is a per-thread flag that can be turned on and off. And not one of those threads indicates that there is no Rosetta-related instructions. The first would indicate that marcan believes that M1 chips do have TSO related instructions. The second discusses the fact that Rosetta runs on non-Apple CPUs without TSO enabled, meaning that it running on Asahi linux without Asahi linux having TSO support does not show that M1 chips always run in TSO mode; but rather that Rosetta itself has no way of detecting it, so will attempt to run regardless. The third repeats what I just said. The twitter threads provide more evidence against your points than for them.