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path: root/arch/s390/kernel/ima_arch.c
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2026-03-05s390: Drop unnecessary CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOTCoiby Xu
Commit b5ca117365d9 ("ima: prevent kexec_load syscall based on runtime secureboot flag") and commit 268a78404973 ("s390/kexec_file: Disable kexec_load when IPLed secure") disabled the kexec_load syscall based on the secureboot mode. Commit 9e2b4be377f0 ("ima: add a new CONFIG for loading arch-specific policies") needed to detect the secure boot mode, not to load an IMA architecture specific policy. Since there is the new CONFIG_INTEGRITY_SECURE_BOOT, drop CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT for s390. Signed-off-by: Coiby Xu <coxu@redhat.com> Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com> [Vasily Gorbik: Fix missing arch_get_secureboot() prototype warning] link: https://lore.kernel.org/linux-integrity/c00-01.ttbfdx5@ub.hpns/ Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2026-03-05integrity: Make arch_ima_get_secureboot integrity-wideCoiby Xu
EVM and other LSMs need the ability to query the secure boot status of the system, without directly calling the IMA arch_ima_get_secureboot function. Refactor the secure boot status check into a general function named arch_get_secureboot. Reported-and-suggested-by: Mimi Zohar <zohar@linux.ibm.com> Suggested-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Coiby Xu <coxu@redhat.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2019-04-29s390/kexec_file: Disable kexec_load when IPLed securePhilipp Rudo
A kernel loaded via kexec_load cannot be verified. Thus disable kexec_load systemcall in kernels which where IPLed securely. Use the IMA mechanism to do so. Signed-off-by: Philipp Rudo <prudo@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>