Re: [PATCH v2 0/3] RISC-V: Export Zba, Zbb to usermode via hwprobe

Palmer Dabbelt
2023-06-20T00:57:31Z

On Tue, 09 May 2023 11:25:00 -0700, Evan Green wrote:
> This change detects the presence of Zba, Zbb, and Zbs extensions and exports
> them per-hart to userspace via the hwprobe mechanism. Glibc can then use
> these in setting up hwcaps-based library search paths.
>
> There's a little bit of extra housekeeping here: the first change adds
> Zba and Zbs to the set of extensions the kernel recognizes, and the second
> change starts tracking ISA features per-hart (in addition to the ANDed
> mask of features across all harts which the kernel uses to make
> decisions). Now that we track the ISA information per-hart, we could
> even fix up /proc/cpuinfo to accurately report extension per-hart,
> though I've left that out of this series for now.
>
> [...]

Applied, thanks!

[1/3] RISC-V: Add Zba, Zbs extension probing
https://git.kernel.org/palmer/c/c6699baf1064
[2/3] RISC-V: Track ISA extensions per hart
https://git.kernel.org/palmer/c/82e9c66e81c8
[3/3] RISC-V: hwprobe: Expose Zba, Zbb, and Zbs
https://git.kernel.org/palmer/c/c0baf321038d

Best regards,
--
Palmer Dabbelt <palmer@rivosinc.com>