Do you happen to have a link to this discussion? I couldn't find anything associated with the spec commits on [1].

One of the aspects folks were looking forward to seeing is the specification of the 2-stage IOMMU, which S-mode or other parts of the spec don't address per the lengthy discussion on [2]. Thanks.

[1] https://github.com/riscv/riscv-isa-manual/commits/master/src... [2] https://arxiv.org/pdf/2103.14951.pdf