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path: root/arch/powerpc/include/asm/secure_boot.h
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2019-11-12powerpc: Detect the trusted boot state of the systemNayna Jain
While secure boot permits only properly verified signed kernels to be booted, trusted boot calculates the file hash of the kernel image and stores the measurement prior to boot, that can be subsequently compared against good known values via attestation services. This patch reads the trusted boot state of a PowerNV system. The state is used to conditionally enable additional measurement rules in the IMA arch-specific policies. Signed-off-by: Nayna Jain <nayna@linux.ibm.com> Signed-off-by: Eric Richter <erichte@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/e9eeee6b-b9bf-1e41-2954-61dbd6fbfbcf@linux.ibm.com
2019-11-12powerpc: Detect the secure boot mode of the systemNayna Jain
This patch defines a function to detect the secure boot state of a PowerNV system. The PPC_SECURE_BOOT config represents the base enablement of secure boot for powerpc. Signed-off-by: Nayna Jain <nayna@linux.ibm.com> Signed-off-by: Eric Richter <erichte@linux.ibm.com> [mpe: Fold in change from Nayna to add "ibm,secureboot" to ids] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/46b003b9-3225-6bf7-9101-ed6580bb748c@linux.ibm.com