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On Thu, Jun 26, 2025 at 03:10:37PM -0700, Hamza Mahfooz wrote:

All major distros have had carried a version of this patch-set
out of tree for sometime now, but with a bunch of magic (typically
sprinkled in setup_arch()). Though we can avoid those architecture
specific quirks if we call efi_get_secureboot_mode() from
efisubsys_init() and that allows us to have a generic solution.

Hamza Mahfooz (2):
  security: introduce security_lock_kernel_down()
  efi: introduce EFI_KERNEL_LOCK_DOWN_IN_SECURE_BOOT

 drivers/firmware/efi/Kconfig  | 10 ++++++++++
 drivers/firmware/efi/efi.c    |  9 +++++++++
 include/linux/lsm_hook_defs.h |  1 +
 include/linux/security.h      |  8 ++++++++
 security/lockdown/lockdown.c  |  1 +
 security/security.c           | 15 +++++++++++++++
 6 files changed, 44 insertions(+)

-- 
2.49.0