One can argue of going the signed firmware route for security is a good or a bad practice and I agree with you that the unbrickable design of the A20 is a better one, but that is irrelevant in the case of Ryzen chips: They have already been taped out so we have to work with what we are given. Going completely free with risc v would be cool but that is years away.

On Sun, Mar 12, 2017 at 8:23 PM, Luke Kenneth Casson Leighton <lkcl@lkcl.net> wrote:

On Sun, Mar 12, 2017 at 3:46 PM, Bill Kontos <vkontogpls@gmail.com> wrote:

> asking for a full unconditional release of everything including releasing
> the signed keys for loading firmware( that doesn't make any sense, if you
> have a system that needs a signed key but the key is public what's the point
> ?).

exactly: the point is, they should never have added secret-key
firmware signing into the hardware in the first place. *that's* the
point.

> press coverage they wanted). So don't get your hopes too high on this.

yep. which is why i'm recommending they go "clean slate" and go with
RISC-V with x86 part-acceleration. i looked at the numbers from a
2015 paper on the FP implementation in rocket: it's a whopping 40%
more power-efficient for the same performance.

l.

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