[Skiboot] NX crypto on POWER9

[Klaus Heinrich Kiwi]

Haren,

  do you have any insights here? Is there any public documentation that can be used?

Thanks,

  -Klaus

On 3/5/2021 3:46 AM, Stewart Smith wrote:
> On Thu, Mar 4, 2021, at 6:14 PM, Léo Le Bouter wrote:
>> Following https://github.com/open-power/hostboot/issues/196
>>
>> Bdragon on #talos-workstation found out that they are not enabled in
>> skiboot here:
>> https://github.com/open-power/skiboot/blob/master/hw/nx-crypto.c#L269
>>
>>  From their investigations it looks like the engines are working in
>> hardware just not fully configured and wired up in software.
>>
>> How could we get them enabled?
>>
>> Next step then would be to wire it up in the Linux kernel so dm-crypt
>> can then use it.
> 
> Likely needs hardware documentation on that part of the NX unit, so that any configuration needing to happen in skiboot can be done, and any configuration needed can be passed onto the kernel.
> 
> I'm not sure if this documentation is public though.
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-- 
Klaus Heinrich Kiwi <klaus at linux.vnet.ibm.com>