Martin Steigerwald writes:
I wonder about ARM64 as an alternative? But they have some Trustzone crap if I remember correctly.

ARM64 is fine from a performance viewpoint. The mobile phone vendors have spent a decade optimising ARM SOCs for performance on small batteries. I haven't found laptops with ≥8GB RAM so far though.

Personally I consider the Trustzone well-justified and good. It makes it easy to provide security regimes that rely on an unchangeable past and already-closed windows of opportunity.

Arnt

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