From: Greg Joyce <gjo...@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 The generic functions are defined as weak so that they may be superseded by keystore specific versions.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-gjo...@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 -- gjo...@linux.vnet.ibm.com