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Chester reports that it is necessary to introduce a new way to pass the EFI secure boot status between the EFI stub and the core kernel on ARM systems. The usual way of obtaining this information is by checking the SecureBoot and SetupMode EFI variables, but this can only be done after the EFI variable workqueue is created, which occurs in a subsys_initcall(), whereas arch_ima_get_secureboot() is called much earlier by the IMA framework. However, the IMA framework itself is started as a late_initcall, and the only reason the call to arch_ima_get_secureboot() occurs so early is because it happens in the context of a __setup() callback that parses the ima_appraise= command line parameter. So let's refactor this code a little bit, by using a core_param() callback to capture the command line argument, and deferring any reasoning based on its contents to the IMA init routine. Cc: Chester Lin <clin@suse.com> Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: James Morris <jmorris@namei.org> Cc: "Serge E. Hallyn" <serge@hallyn.com> Link: https://lore.kernel.org/linux-arm-kernel/20200904072905.25332-2-clin@suse.com/ Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reported-by: kernel test robot <lkp@intel.com> [missing core_param()] [zohar@linux.ibm.com: included linux/module.h] Tested-by: Chester Lin <clin@suse.com> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com> |
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| .. | ||
| evm | ||
| ima | ||
| platform_certs | ||
| digsig_asymmetric.c | ||
| digsig.c | ||
| iint.c | ||
| integrity_audit.c | ||
| integrity.h | ||
| Kconfig | ||
| Makefile | ||