On Thu, 5 May 2016 15:36:43 +0100 Matt Fleming <m...@codeblueprint.co.uk> wrote:
> On Thu, 05 May, at 02:27:16PM, Kweh, Hock Leong wrote: > > > > If not mistaken, the EFI firmware will not update a partially uploaded > > binary due to checksum error. > > User is required to re-update the efi capsule again on the next boot up. > > Ah, so the capsule is only processed by the firmware after rebooting? > That makes sense and alleviates my concerns about rebooting while in > the middle of efi_capsule_update(). Yes - and in many cases the actions the firmware capsule update does are done in a manner which once you exit the firmware cannot be done by the OS. It acts as a way to communicate a block of (typically signed) firmware to more hardware priviliged boot firmware. Alan
