On Thu, 2012-09-20 at 10:41 -0400, Matthew Garrett wrote:
> The firmware has a set of flags that indicate whether secure boot is enabled
> and enforcing. Use them to indicate whether the kernel should lock itself
> down.
> 
> Signed-off-by: Matthew Garrett <mjg@redhat.com>
> ---
>  Documentation/x86/zero-page.txt  |  2 ++
>  arch/x86/boot/compressed/eboot.c | 32 ++++++++++++++++++++++++++++++++
>  arch/x86/include/asm/bootparam.h |  3 ++-
>  arch/x86/kernel/setup.c          |  3 +++
>  include/linux/cred.h             |  2 ++
>  5 files changed, 41 insertions(+), 1 deletion(-)

Probably wants an update to Documentation/x86/boot.txt too. But
otherwise,

Acked-by: Matt Fleming <matt.fleming@intel.com>