[PATCH v4 0/3] generic and PowerPC SED Opal keystore

[gjoyce@linux.vnet.ibm.com]

From: Greg Joyce <gjoyce@linux.vnet.ibm.com>

Generic functions have been defined for accessing SED Opal keys.
The generic functions are defined as weak so that they may be superseded
by keystore specific versions.

PowerPC/pseries versions of these functions provide read/write access
to SED Opal keys in the PLPKS keystore.

The SED block driver has been modified to read the SED Opal
keystore to populate a key in the SED Opal keyring. Changes to the
SED Opal key will be written to the SED Opal keystore.

Patch 3 "keystore access for SED Opal keys" is dependent on:
        https://lore.kernel.org/keyrings/20220818143045.680972-4-gjoyce@linux.vnet.ibm.com/T/#u

Changelog
v4:
        - scope reduced to cover just SED Opal keys
        - base SED Opal keystore is now in SED block driver
        - removed use of enum to indicate type
        - refactored common code into common function that read and
          write use
        - removed cast to void
        - added use of SED Opal keystore functions to SED block driver

v3:
        - No code changes, but per reviewer requests, adding additional
          mailing lists(keyring, EFI) for wider review.

v2:
	- Include feedback from Gregory Joyce, Eric Richter and
	  Murilo Opsfelder Araujo.
	- Include suggestions from Michael Ellerman.
	- Moved a dependency from generic SED code to this patchset.
	  This patchset now builds of its own.

Greg Joyce (3):
  block: sed-opal: SED Opal keystore
  powerpc/pseries: PLPKS SED Opal keystore support
  block: sed-opal: keystore access for SED Opal keys

 arch/powerpc/platforms/pseries/Makefile       |   1 +
 .../powerpc/platforms/pseries/plpks_sed_ops.c | 124 ++++++++++++++++++
 block/Makefile                                |   2 +-
 block/sed-opal-key.c                          |  23 ++++
 block/sed-opal.c                              |  17 ++-
 include/linux/sed-opal-key.h                  |  15 +++
 6 files changed, 179 insertions(+), 3 deletions(-)
 create mode 100644 arch/powerpc/platforms/pseries/plpks_sed_ops.c
 create mode 100644 block/sed-opal-key.c
 create mode 100644 include/linux/sed-opal-key.h

-- 
gjoyce@linux.vnet.ibm.com