• Linus Torvalds's avatar
    Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a776c270
    Linus Torvalds authored
    Pull EFI updates from Ingo Molnar:
     "The EFI changes in this cycle are much larger than usual, for two
      (positive) reasons:
    
       - The GRUB project is showing signs of life again, resulting in the
         introduction of the generic Linux/UEFI boot protocol, instead of
         x86 specific hacks which are increasingly difficult to maintain.
         There's hope that all future extensions will now go through that
         boot protocol.
    
       - Preparatory work for RISC-V EFI support.
    
      The main changes are:
    
       - Boot time GDT handling changes
    
       - Simplify handling of EFI properties table on arm64
    
       - Generic EFI stub cleanups, to improve command line handling, file
         I/O, memory allocation, etc.
    
       - Introduce a generic initrd loading method based on calling back
         into the firmware, instead of relying on the x86 EFI handover
         protocol or device tree.
    
       - Introduce a mixed mode boot method that does not rely on the x86
         EFI handover protocol either, and could potentially be adopted by
         other architectures (if another one ever surfaces where one
         execution mode is a superset of another)
    
       - Clean up the contents of 'struct efi', and move out everything that
         doesn't need to be stored there.
    
       - Incorporate support for UEFI spec v2.8A changes that permit
         firmware implementations to return EFI_UNSUPPORTED from UEFI
         runtime services at OS runtime, and expose a mask of which ones are
         supported or unsupported via a configuration table.
    
       - Partial fix for the lack of by-VA cache maintenance in the
         decompressor on 32-bit ARM.
    
       - Changes to load device firmware from EFI boot service memory
         regions
    
       - Various documentation updates and minor code cleanups and fixes"
    
    * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits)
      efi/libstub/arm: Fix spurious message that an initrd was loaded
      efi/libstub/arm64: Avoid image_base value from efi_loaded_image
      partitions/efi: Fix partition name parsing in GUID partition entry
      efi/x86: Fix cast of image argument
      efi/libstub/x86: Use ULONG_MAX as upper bound for all allocations
      efi: Fix a mistype in comments mentioning efivar_entry_iter_begin()
      efi/libstub: Avoid linking libstub/lib-ksyms.o into vmlinux
      efi/x86: Preserve %ebx correctly in efi_set_virtual_address_map()
      efi/x86: Ignore the memory attributes table on i386
      efi/x86: Don't relocate the kernel unless necessary
      efi/x86: Remove extra headroom for setup block
      efi/x86: Add kernel preferred address to PE header
      efi/x86: Decompress at start of PE image load address
      x86/boot/compressed/32: Save the output address instead of recalculating it
      efi/libstub/x86: Deal with exit() boot service returning
      x86/boot: Use unsigned comparison for addresses
      efi/x86: Avoid using code32_start
      efi/x86: Make efi32_pe_entry() more readable
      efi/x86: Respect 32-bit ABI in efi32_pe_entry()
      efi/x86: Annotate the LOADED_IMAGE_PROTOCOL_GUID with SYM_DATA
      ...
    a776c270
efi.h 3.62 KB