This comment is down-voted as other archs are vulnerable to Spectre/Meltdown not just x86. True.

Yet, as of right now Intel as not fixed in silicon all spectre/meltdown issues. Given the R&D / QA time on a specific arch, I'd bet it is still hardware flawed if they took an of the shelf in house x86 design. Atom based maybe?

So I do not feel confident for a chip that runs the broadband and moreover one that is not auditable by the end user (unlike a main CPU would be).

I would be supper interested in knowing if the reverse engineering show traces of retpolines.