The mitigations are largely in code produced by the JIT. It's not hard to patch the JIT's codgen to back this out (perhaps even based on current CPU) if it beco

The mitigations are largely in code produced by the JIT. It's not hard to patch the JIT's codgen to back this out (perhaps even based on current CPU) if it becomes unnecessary. It would be nice if CPU architectures never had this fundamental vulnerability, but they do. So this seems like the best response for the reality we actually live in.