Re: [RFC 0/2] RISC-V: enable rust

[Palmer Dabbelt]

On Fri, 24 Feb 2023 05:36:08 PST (-0800), Conor Dooley wrote:
> This is a somewhat blind (and maybe foolish) attempt at enabling Rust
> for RISC-V. I've tested this on Icicle, and the modules seem to work.
> I'd like to play around with Rust on RISC-V, but I'm not interested in
> using downstream kernels, so figured I should try and see what's
> missing...
> I've tagged this as RFC in case I've missed some "WAaaaa you can't do
> this" somewhere :)

I'm fine with it, but IIRC the Rust support for most targets was pulled 
out as they weren't deemed ready to go yet.  If the Rust folks are OK 
turning on RISC-V support then it's fine with me, but I think it's 
really more up to them at this point.

So

Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>

in case folks want to take it via some Rust-related tree, but I'm also 
fine taking it via the RISC-V tree if that's easier.

> Thanks,
> Conor.
>
> CC: Miguel Ojeda <ojeda@xxxxxxxxxx>
> CC: Alex Gaynor <alex.gaynor@xxxxxxxxx>
> CC: Wedson Almeida Filho <wedsonaf@xxxxxxxxx>
> CC: Boqun Feng <boqun.feng@xxxxxxxxx>
> CC: Gary Guo <gary@xxxxxxxxxxx>
> CC: Björn Roy Baron <bjorn3_gh@xxxxxxxxxxxxxx>
> CC: Jonathan Corbet <corbet@xxxxxxx>
> CC: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
> CC: Palmer Dabbelt <palmer@xxxxxxxxxxx>
> CC: Nathan Chancellor <nathan@xxxxxxxxxx>
> CC: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> CC: Tom Rix <trix@xxxxxxxxxx>
> CC: rust-for-linux@xxxxxxxxxxxxxxx
> CC: linux-doc@xxxxxxxxxxxxxxx
> CC: linux-kernel@xxxxxxxxxxxxxxx
> CC: linux-riscv@xxxxxxxxxxxxxxxxxxx
> CC: llvm@xxxxxxxxxxxxxxx
>
> Miguel Ojeda (2):
>   scripts: generate_rust_target: enable building on RISC-V
>   RISC-V: enable building the 64-bit kernels with rust support
>
>  Documentation/rust/arch-support.rst |  2 ++
>  arch/riscv/Kconfig                  |  1 +
>  arch/riscv/Makefile                 |  3 ++-
>  scripts/generate_rust_target.rs     | 19 +++++++++++++++++++
>  4 files changed, 24 insertions(+), 1 deletion(-)