[PATCH] riscv: Add RISC-V svpbmt extension
Nick Kossifidis
mick at ics.forth.gr
Thu Sep 23 03:09:45 PDT 2021
Στις 2021-09-23 13:04, Philipp Tomsich έγραψε:
>
> How if we expand this to a mmu subnode in cpu at x and add a booleans for
> adornments like svnapot and svpbmt?
> The older mmu-type could then treated to indicate a mmu w/o any
> adornments specified. I am aware that this generates an additional
> parsing-path that will be maintained, but it will allow future
> properties to be grouped.
>
> cpu at 0 {
> ...
> mmu {
> type = "riscv,sv39";
> supports-svpbmt;
> }
> ...
> }
I was about to propose the same thing, we can do this now without
breaking backwards compatibility, we don't really use mmu-type property
at this point, we are either sv39 or nommu.
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