[Yan_Coutinho]

Architeture doesn't have kernel memory protection? Seems risky...

[orbifold]

There is a specification of privileged extensions, I think it was stabilised fairly recently:

https://people.eecs.berkeley.edu/~krste/papers/riscv-priv-sp...

The rocket chip generator https://github.com/ucb-bar/rocket-chip and boom both have support for it, as far as I know.