Re: [PATCH v2 0/3] block: sed-opal: add support for shadow MBR done flag and write
From: Derrick, Jonathan
Date: Tue Jun 25 2019 - 16:47:31 EST
These are still good with me and we'll likely have a similar future use
for passing data through the ioctl.
Could we get this staged for 5.3?
On Tue, 2019-05-21 at 22:46 +0200, David Kozub wrote:
> 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.
> This applies on current master.
> I successfully tested toggling the MBR done flag and writing the shadow MBR
> using some tools I hacked together with a Samsung SSD 850 EVO drive.
> Changes from v1:
> * PATCH 2/3: remove check with access_ok, just rely on copy_from_user as
> suggested in  (I tested passing data == 0 and I got the expected EFAULT)
>  https://gitlab.com/zub2/opalctl
>  https://lore.kernel.org/lkml/20190501134833.GB24132@xxxxxxxxxxxxx/
> 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 | 157 +++++++++++++++++++++++++++++++++-
> include/linux/sed-opal.h | 2 +
> include/uapi/linux/sed-opal.h | 20 +++++
> 4 files changed, 193 insertions(+), 2 deletions(-)
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