> -----Original Message----- > From: Matt Fleming [mailto:m...@codeblueprint.co.uk] > Sent: Wednesday, May 04, 2016 10:36 PM > To: Kweh, Hock Leong; Bryan O'Donoghue > Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; Ard Biesheuvel; > joeyli; Borislav Petkov > Subject: Re: [PATCH] efi/capsule: Make efi_capsule_pending() lockless > > On Wed, 04 May, at 02:20:42PM, Borislav Petkov wrote: > > > > Blergh. > > Wilson, Bryan, what kind of rollback support does the Intel Quark have if its > firmware update is interrupted? > > The interruption could be for a number of reasons including power loss, or > the example in this case, rebooting due to panic().
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. Regards, Wilson