On 14/11/2019 20:14, Areligious Republican wrote:
> Reading through Intel's manual of the ARM64 architecture
> (all 6666 pages of it!) it seems that some things are
> implementation defined.

You would be better off reading ARM's manual on ARM64, as they make the
things, Intel only make old fashioned electric room heaters.

> So, in the case of the RPi4 what optional features
> are not included.
>
> For example, are the four exception levels, EL3, EL2, EL1 and EL0
> all implemented?
>
> Are the encryption facilities there?
>
> etc, etc, etc

For that you need the datasheet for the Broadcom BCM2711B0 SOC

---druck

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