[RFC PATCH 0/2] efi: get rid of deprecated sysfs varstore interface

Ard Biesheuvel
2022-06-16T12:47:53Z

EFI still has two ways of exposing EFI variable to user space: the
original sysfs interface and the efivarfs pseudo-filesystem that
supersedes it, and which was introduced almost 10 years ago.

As a preparatory step towards refactoring the underlying infrastructure
shared between efivarfs and efi-pstore, I would like to finally get rid
of the sysfs interface which also uses that, but which is only enabled
on x86 and Itanium.

Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Peter Jones <pjones@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-kselftest@vger.kernel.org

Ard Biesheuvel (2):
selftests/kexec: remove broken EFI_VARS secure boot fallback check
efi: remove deprecated 'efivars' sysfs interface

Documentation/x86/x86_64/uefi.rst | 2 +-
arch/arm/configs/milbeaut_m10v_defconfig | 1 -
arch/ia64/configs/bigsur_defconfig | 1 -
arch/ia64/configs/generic_defconfig | 1 -
arch/ia64/configs/gensparse_defconfig | 1 -
arch/ia64/configs/tiger_defconfig | 1 -
arch/ia64/configs/zx1_defconfig | 1 -
arch/x86/configs/i386_defconfig | 1 -
arch/x86/configs/x86_64_defconfig | 1 -
drivers/firmware/efi/Kconfig | 12 -
drivers/firmware/efi/Makefile | 1 -
drivers/firmware/efi/efivars.c | 671 --------------------
tools/testing/selftests/kexec/kexec_common_lib.sh | 36 +-
13 files changed, 3 insertions(+), 727 deletions(-)
delete mode 100644 drivers/firmware/efi/efivars.c

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2.35.1