In systems based on [U]EFI-conformant firmware, runtime services provide a standardised way for the kernel to update firmware environment variables. This is used for example by efibootmgr to update which image should be loaded on next boot.
This patchset implements basic support for UEFI runtime services on ARM platforms, as well as the basic underlying EFI support. It also defines a mechanism by which the required information is passed from the bootloader to the kernel via FDT entries.
This patchset depends on the previously submitted early_ioremap() patchset.
Leif Lindholm (4): Documentation: arm: [U]EFI runtime services x86: efi: break efi_lookup_mapped_addr out to generic code arm: Add [U]EFI runtime services support init: efi: arm: enable (U)EFI runtime services on arm
Documentation/arm/00-INDEX | 3 + Documentation/arm/uefi.txt | 39 ++++ arch/arm/Kconfig | 2 + arch/arm/include/asm/efi.h | 22 ++ arch/arm/kernel/Makefile | 2 + arch/arm/kernel/efi.c | 456 +++++++++++++++++++++++++++++++++++++ arch/arm/kernel/efi_phys.S | 59 +++++ arch/arm/kernel/setup.c | 5 + arch/x86/platform/efi/efi.c | 28 --- drivers/firmware/efi/Makefile | 2 +- drivers/firmware/efi/efi-helper.c | 33 +++ init/main.c | 6 + 12 files changed, 628 insertions(+), 29 deletions(-) create mode 100644 Documentation/arm/uefi.txt create mode 100644 arch/arm/include/asm/efi.h create mode 100644 arch/arm/kernel/efi.c create mode 100644 arch/arm/kernel/efi_phys.S create mode 100644 drivers/firmware/efi/efi-helper.c