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SubjectRe: [RFC] Second attempt at kernel secure boot support
On Wed, Oct 31, 2012 at 06:28:16PM +0100, Takashi Iwai wrote:

> request_firmware() is used for microcode loading, too, so it's fairly
> a core part to cover, I'm afraid.
>
> I played a bit about this yesterday. The patch below is a proof of
> concept to (ab)use the module signing mechanism for firmware loading
> too. Sign firmware files via scripts/sign-file, and put to
> /lib/firmware/signed directory.

That does still leave me a little uneasy as far as the microcode
licenses go. I don't know that we can distribute signed copies of some
of them, and we obviously can't sign at the user end.

--
Matthew Garrett | mjg59@srcf.ucam.org


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