linux-kernel - Re: Runtime updates to EFI secure variables

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Date:	Fri, 13 Jul 2012 19:02:31 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
Cc:	linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Runtime updates to EFI secure variables

On Fri, Jul 13, 2012 at 06:12:26PM +0100, James Bottomley wrote:

> This means (provided we have access to the relevant keys) we can move
> the platform into and out of Setup Mode as well as add signing and other
> keys.

I'm pretty sure that the expected behaviour is to use 
EFI_VARIABLE_APPEND_WRITE for these updates, which means you don't need 
to worry about the timestamp.

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