On 5/15/2026 3:15 PM, Nicholas Piggin wrote:
On Thu, May 14, 2026 at 05:46:38PM -0300, Daniel Henrique Barboza wrote:
From: Fei Wu <[email protected]>
The harts requirements of RISC-V server platform [1] require RVA23 ISA
profile support and others.
This patch provides a new "riscv-server-ref" CPU to go along with the
future "riscv-server-ref" board.
About compatibility, if we get a server platform spec v2.0 that requires
a different machine and RVA28 + Sxxx CPU. Is the plan to update these,
or add a new CPU and machine types? If the latter, then perhaps a
version in the names like riscv-server-v1.0 / riscv-server-v1.0-cpu
would be good.
Good question. We can get away with machine props to change the board
behavior based on spec version but not sure if this makes sense with
a CPU. I suppose we could live with:
-cpu riscv-server-ref,spec1.1=on
to change the CPU setup to v1.1 and so on, but creating a new CPU with the
spec version in the name like you suggested (e.g. riscv-server-ref-v1.1)
seems cleaner. In particular if the spec doesn't change that much - which
I guess it's fair to assume given that a reference spec wouldn't be much
of a reference if it keeps changing/updating all the time ...
Thanks,
Daniel
Non-versioned names could be aliases to the latest one, but I don't know
if that is really worthwhile particularly for non virtualized system.
Thanks,
Nick
