[PATCH v3 0/2] generic and PowerPC accessor functions for arch keystore
gjoyce at linux.vnet.ibm.com
gjoyce at linux.vnet.ibm.com
Mon Aug 1 22:34:24 AEST 2022
From: Greg Joyce <gjoyce at linux.vnet.ibm.com>
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defined as weak so that they may be superseded by platform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.
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 at linux.vnet.ibm.com>
base-commit: ff6992735ade75aae3e35d16b17da1008d753d28
--
2.27.0
More information about the Linuxppc-dev
mailing list