Re: [PATCH 1/3] efi: Add support for a UEFI variable filesystem

Matt Fleming
2012-10-06T19:32:44Z

On Fri, 2012-10-05 at 13:54 +0800, Jeremy Kerr wrote:
> From: Matthew Garrett <mjg@redhat.com>
>
> The existing EFI variables code only supports variables of up to 1024
> bytes. This limitation existed in version 0.99 of the EFI specification,
> but was removed before any full releases. Since variables can now be
> larger than a single page, sysfs isn't the best interface for this. So,
> instead, let's add a filesystem. Variables can be read, written and
> created, with the first 4 bytes of each variable representing its UEFI
> attributes. The create() method doesn't actually commit to flash since
> zero-length variables can't exist per-spec.
>
> Updates from Jeremy Kerr <jeremy.kerr@canonical.com>.
>
> Signed-off-by: Matthew Garrett <mjg@redhat.com>
> Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>

Thanks, I've applied this series.