• Linus Torvalds's avatar
    Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 24b5e20f
    Linus Torvalds authored
    Pull EFI updates from Ingo Molnar:
     "The main changes are:
       - Use separate EFI page tables when executing EFI firmware code.
         This isolates the EFI context from the rest of the kernel, which
         has security and general robustness advantages.  (Matt Fleming)
       - Run regular UEFI firmware with interrupts enabled.  This is already
         the status quo under other OSs.  (Ard Biesheuvel)
       - Various x86 EFI enhancements, such as the use of non-executable
         attributes for EFI memory mappings.  (Sai Praneeth Prakhya)
       - Various arm64 UEFI enhancements.  (Ard Biesheuvel)
       - ... various fixes and cleanups.
      The separate EFI page tables feature got delayed twice already,
      because it's an intrusive change and we didn't feel confident about
      it - third time's the charm we hope!"
    * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
      x86/mm/pat: Fix boot crash when 1GB pages are not supported by the CPU
      x86/efi: Only map kernel text for EFI mixed mode
      x86/efi: Map EFI_MEMORY_{XP,RO} memory region bits to EFI page tables
      x86/mm/pat: Don't implicitly allow _PAGE_RW in kernel_map_pages_in_pgd()
      efi/arm*: Perform hardware compatibility check
      efi/arm64: Check for h/w support before booting a >4 KB granular kernel
      efi/arm: Check for LPAE support before booting a LPAE kernel
      efi/arm-init: Use read-only early mappings
      efi/efistub: Prevent __init annotations from being used
      arm64/vmlinux.lds.S: Handle .init.rodata.xxx and .init.bss sections
      efi/arm64: Drop __init annotation from handle_kernel_image()
      x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings
      efi/runtime-wrappers: Run UEFI Runtime Services with interrupts enabled
      efi: Reformat GUID tables to follow the format in UEFI spec
      efi: Add Persistent Memory type name
      efi: Add NV memory attribute
      x86/efi: Show actual ending addresses in efi_print_memmap
      x86/efi/bgrt: Don't ignore the BGRT if the 'valid' bit is 0
      efivars: Use to_efivar_entry
      efi: Runtime-wrapper: Get rid of the rtc_lock spinlock
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