> 在 2019年5月23日，上午4:14，Chris Wilson <[email protected]> 写道：
>
> Quoting Michal Wajdeczko (2019-05-22 20:00:56)
>> During driver load we checked that HuC firmware was verified, and once
>> verified it stays verified, so there is no need to check that again.
>>
>> Signed-off-by: Michal Wajdeczko <[email protected]>
>> Cc: Chris Wilson <[email protected]>
>> Cc: Tony Ye <[email protected]>
>
> Makes sense to me as purely a code monkey.
>
> Reviewed-by: Chris Wilson <[email protected]>
>
> I would like a second opinion from someone who knows the innards of the
> HuC to confirm that indeed once verified, it remains verified. And if it
> can change, we need to report the change in status to userspace (or they
> just hang and the gpu + huc gets reset).
> -Chris
UMD doesn’t authenticate HuC. It only reads the authentication status. So as
long as KMD/GuC verified it, it keeps verified.
Regards, -Tony
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