[PATCH v4 1/1] RISC-V: Add platform property/capability extensions

[Tsukasa OI]

On 2023/07/26 9:47, Palmer Dabbelt wrote:
> IMO we want to stay away from these extensions that are just defined by
> a single phrase in the spec.  We're still digging out from the first
> rounds of changed specs, trying to start supporting stuff that's not
> even been defined is going to just make for another round of headaches.

I see.  I don't completely agree but it makes sense ('Zkt' for example,
has a dedicated section to describe this extension).

I think there's not so much room for improvements for many of "single
phrase" extensions (on 'Ssu64xl', I requested to clarify some details
before the ratification; 'Zic64b' describes itself completely and adding
more words won't work; definition of 'Zicclsm' on the other hand, might
be better to be a bit stricter).  However, I see they are not so urgent.

As long as this patch set is considered as a prerequisite of further
"RISC-V Profiles" support (e.g. "-march=rva..."), I can wait.

Thanks,
Tsukasa