Re: [RFC,PATCH v2] efi: Add support for a UEFI variable filesystem

[joeyli <jlee@suse.com>]

於 二，2012-09-11 於 15:23 +0800，lee joey 提到：
> 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> 

I and Gary tested create, update, delete unauthenticated variable, works
fine.

Tested-by: Lee, Chun-Yi <jlee@suse.com>


Thanks a lot!
Joey Lee