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s390/kexec_file: Signature verification prototype

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Add kernel signature verification to kexec_file. The verification is based
on module signature verification and works with kernel images signed via
scripts/sign-file.

Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Philipp Rudo
2019-02-26 10:50:39 +01:00
committed by Martin Schwidefsky
parent 653beba24d
commit e23a8020ce
8 changed files with 95 additions and 0 deletions
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arch/s390/configs/debug_defconfig
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@@ -64,6 +64,7 @@ CONFIG_NUMA=y
CONFIG_PREEMPT=y
CONFIG_HZ_100=y
CONFIG_KEXEC_FILE=y
CONFIG_KEXEC_VERIFY_SIG=y
CONFIG_EXPOLINE=y
CONFIG_EXPOLINE_AUTO=y
CONFIG_MEMORY_HOTPLUG=y