Message-ID: <fd40010f-f2ec-b32a-6850-1e054af43725@canonical.com>
Date:   Thu, 16 Dec 2021 15:17:25 +0100
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Subject: Re: [PATCH 1/1] riscv: default to CONFIG_RISCV_SBI_V01=n
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To:     Jessica Clarke <jrtc27@jrtc27.com>
Cc:     Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
References: <20211216123538.175087-1-heinrich.schuchardt@canonical.com>
 <BC1B38E7-1170-4C05-948A-D18E80AC49E7@jrtc27.com>
From:   Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
In-Reply-To: <BC1B38E7-1170-4C05-948A-D18E80AC49E7@jrtc27.com>
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On 12/16/21 14:49, Jessica Clarke wrote:
> On 16 Dec 2021, at 12:35, Heinrich Schuchardt <heinrich.schuchardt@canonical.com> 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 The SBI 0.1 specification is obsolete.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outdated software stack does not justify defaulting to deprecated 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.

Best regards

Heinrich