26149b02 - powerpc/secvar: Warn and error if multiple secvar ops are set

Fri, 10 Feb 2023 08:03:40 +0000

powerpc/secvar: Warn and error if multiple secvar ops are setThe secvar code only supports one consumer at a time.Multiple consumers aren't possible at this point in time, but we'd wantit to be obvious if it ever could happen.Signed-off-by: Russell Currey Co-developed-by: Andrew Donnellan Signed-off-by: Andrew Donnellan Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20230210080401.345462-6-ajd@linux.ibm.com List of files: /linux-6.15/arch/powerpc/kernel/secvar-ops.c

9155e234 - powerpc/powernv: Add OPAL API interface to access secure variable

Mon, 11 Nov 2019 03:10:33 +0000

powerpc/powernv: Add OPAL API interface to access secure variableThe X.509 certificates trusted by the platform and required to secureboot the OS kernel are wrapped in secure variables, which arecontrolled by OPAL.This patch adds firmware/kernel interface to read and write OPALsecure variables based on the unique key.This support can be enabled using CONFIG_OPAL_SECVAR.Signed-off-by: Claudio Carvalho Signed-off-by: Nayna Jain Signed-off-by: Eric Richter [mpe: Make secvar_ops __ro_after_init, only build opal-secvar.c if PPC_SECURE_BOOT=y]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1573441836-3632-2-git-send-email-nayna@linux.ibm.com List of files: /linux-6.15/arch/powerpc/kernel/secvar-ops.c

Changes in secvar-ops.c

26149b02 - powerpc/secvar: Warn and error if multiple secvar ops are set

9155e234 - powerpc/powernv: Add OPAL API interface to access secure variable