[PATCH 0/3] Add Kconfig option for each extension

[Andrew Jones]

On Tue, Oct 11, 2022 at 12:33:02AM +0800, Vivian Wang wrote:
> This series adds support for disabling SBI extensions via Kconfig. In
> the future, Kconfig can also be used to disable obsolete extensions by
> default.
> 
> All of the SBI extensions except Base extension is optional [1]. Users
> of OpenSBI may wish to disable support for some of the extensions for
> reasons such as:
> 
> - Future-proofing S-mode software, replacing SBI calls with
>   new ISA functionality.
> - Testing S-mode software to make sure they work correctly without
>   certain extensions present.
> - Disabling unused extensions to minimize the attack surface of M-mode
>   software. See [2].
> 
> [1]: https://github.com/riscv-non-isa/riscv-sbi-doc/blob/master/riscv-sbi.adoc#1-introduction
> [2]: https://github.com/riscv-non-isa/riscv-sbi-doc/issues/102
>

For the series

Reviewed-by: Andrew Jones <ajones at ventanamicro.com>