From: Greg Joyce <gjoyce@xxxxxxxxxxxxxxxxxx>
Changelog v3a:
- No code changes, but per reviewer requests, adding additional
mailing lists(keyring, EFI) for wider review.
Architectural neutral functions have been defined for accessing
architecture specific variable store. The neutral functions are
defined as weak so that they may be superseded by platform
specific versions. The functions have been desigined so that
they can support a large range of platforms/architectures.
PowerPC/pseries versions of these functions provide read/write access
to the non-volatile PLPKS data store.
This functionality allows kernel code such as the block SED opal
driver to store authentication keys in a secure permanent store.
Greg Joyce (2):
lib: define generic accessor functions for arch specific keystore
powerpc/pseries: Override lib/arch_vars.c functions
arch/powerpc/platforms/pseries/Makefile | 1 +
.../platforms/pseries/plpks_arch_ops.c | 167 ++++++++++++++++++
include/linux/arch_vars.h | 23 +++
lib/Makefile | 2 +-
lib/arch_vars.c | 25 +++
5 files changed, 217 insertions(+), 1 deletion(-)
create mode 100644 arch/powerpc/platforms/pseries/plpks_arch_ops.c
create mode 100644 include/linux/arch_vars.h
create mode 100644 lib/arch_vars.c
Signed-off-by: Greg Joyce <gjoyce@xxxxxxxxxxxxxxxxxx>
base-commit: ff6992735ade75aae3e35d16b17da1008d753d28
--
2.27.0
