[PATCH v3 05/20] dt-bindings: riscv: add scalar crypto ISA extensions description

Clément Léger cleger at rivosinc.com
Wed Nov 8 07:11:39 PST 2023



On 08/11/2023 15:57, Conor Dooley wrote:
> Yo,
> 
> On Tue, Nov 07, 2023 at 11:55:41AM +0100, Clément Léger wrote:
>> +        - const: zkr
>> +          description:
>> +            The standard Zkr entropy source extension as ratified in version
>> +            1.0 of RISC-V Cryptography Extensions Volume I specification.
> 
> So the topic of the seed CSR came up on the U-Boot ML in the last few
> days:
> https://lore.kernel.org/u-boot/20231107212431.GP6601@bill-the-cat
> I think we need to document that having zkr in riscv,isa-extensions
> means that the CSR is accessible at the privilege level to which that
> devicetree has been provided.

Hi Conor,

Indeed, seems like a good idea.

Thanks,

Clément




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