This patch series extends SED Opal support: it adds IOCTL for setting the shadow MBR done flag which can be useful for unlocking an Opal disk on boot and it adds IOCTL for writing to the shadow MBR. The code has been already submitted in [1] but it was suggested to split this part off. In comparison to that version, I tried to apply Scott's suggestions from [2]. This series requires the previously-submitted Opal cleanup patches[3]. It applies on current linux-next/master (e.g. next-20190430). I successfully tested toggling the MBR done flag and writing the shadow MBR using some tools I hacked together[4] with a Samsung SSD 850 EVO drive. [1] https://lore.kernel.org/lkml/1549054223-12220-1-git-send-email-zub@xxxxxxxxxxxxxxxxxx/ [2] https://lore.kernel.org/lkml/20190210182655.GA20491@hacktheplanet/ [3] https://lore.kernel.org/lkml/1550103368-4605-1-git-send-email-zub@xxxxxxxxxxxxxxxxxx/ [4] https://gitlab.com/zub2/opalctl Jonas Rabenstein (3): block: sed-opal: add ioctl for done-mark of shadow mbr block: sed-opal: ioctl for writing to shadow mbr block: sed-opal: check size of shadow mbr block/opal_proto.h | 16 ++++ block/sed-opal.c | 160 +++++++++++++++++++++++++++++++++- include/linux/sed-opal.h | 2 + include/uapi/linux/sed-opal.h | 20 +++++ 4 files changed, 196 insertions(+), 2 deletions(-) -- 2.20.1
