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SubjectRe: [PATCH 1/1] riscv: default to CONFIG_RISCV_SBI_V01=n
On 16 Dec 2021, at 14:17, Heinrich Schuchardt <> wrote:
> On 12/16/21 14:49, Jessica Clarke wrote:
>> On 16 Dec 2021, at 12:35, Heinrich Schuchardt <> wrote:
>>> The SBI 0.1 specification is obsolete. The current version is 0.3.
>>> Hence we should not rely by default on SBI 0.1 being implemented.
>> It’s what BBL implements, and some people are still using it,
>> especially given early hardware shipped before OpenSBI grew in
>> popularity.
>> Jess
> Do you mean BBL is not developed anymore?
> Some people may still be using a 0.1 SBI. But that minority stuck on an outdated software stack does not justify defaulting to deprecated settings in future Linux releases.

BBL is still actively maintained; its most recent commit was 24 days
ago. Also, the amount of code CONFIG_RISCV_SBI_V01 affects is tiny, so
I see no tangible benefit from making this change, just unnecessary
breakage of perfectly functional systems.


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