[GIT PULL] EFI changes for v5.7

From: Ingo Molnar
Date: Mon Mar 30 2020 - 09:48:10 EST

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Linus,

Please pull the latest efi-core-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi-core-for-linus

# HEAD: 594e576d4b93b8cda3247542366b47e1b2ddc4dc efi/libstub/arm: Fix spurious message that an initrd was loaded

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.

Thanks,

Ingo

------------------>
Ard Biesheuvel (76):
efi/arm: Work around missing cache maintenance in decompressor handover
efi/arm: Pass start and end addresses to cache_clean_flush()
efi/libstub/arm: Make efi_entry() an ordinary PE/COFF entrypoint
efi/libstub/arm64: Use 1:1 mapping of RT services if property table exists
efi/libstub/x86: Remove pointless zeroing of apm_bios_info
efi/libstub/x86: Avoid overflowing code32_start on PE entry
efi/libstub: Use hidden visibility for all source files
efi/libstub/arm: Relax FDT alignment requirement
efi/libstub: Move memory map handling and allocation routines to mem.c
efi/libstub: Simplify efi_high_alloc() and rename to efi_allocate_pages()
efi/libstub/x86: Incorporate eboot.c into libstub
efi/libstub: Use consistent type names for file I/O protocols
efi/libstub/x86: Permit bootparams struct to be allocated above 4 GB
efi/libstub: Move stub specific declarations into efistub.h
efi/libstub/x86: Permit cmdline data to be allocated above 4 GB
efi/libstub: Move efi_random_alloc() into separate source file
efi/libstub: Move get_dram_base() into arm-stub.c
efi/libstub: Move file I/O support code into separate file
efi/libstub: Rewrite file I/O routine
efi/libstub: Take soft and hard memory limits into account for initrd loading
efi/libstub: Clean up command line parsing routine
efi/libstub: Expose LocateDevicePath boot service
efi/libstub: Make the LoadFile EFI protocol accessible
efi/x86: Reindent struct initializer for legibility
efi/x86: Replace #ifdefs with IS_ENABLED() checks
efi/dev-path-parser: Add struct definition for vendor type device path nodes
efi/libstub: Add support for loading the initrd from a device path
efi/libstub: Take noinitrd cmdline argument into account for devpath initrd
efi: Drop handling of 'boot_info' configuration table
efi/ia64: Move HCDP and MPS table handling into IA64 arch code
efi: Move UGA and PROP table handling to x86 code
efi: Make rng_seed table handling local to efi.c
efi: Move mem_attr_table out of struct efi
efi: Make memreserve table handling local to efi.c
efi: Merge EFI system table revision and vendor checks
efi/ia64: Use existing helpers to locate ESI table
efi/ia64: Use local variable for EFI system table address
efi/ia64: Switch to efi_config_parse_tables()
efi: Make efi_config_init() x86 only
efi: Clean up config_parse_tables()
efi/x86: Remove runtime table address from kexec EFI setup data
efi/x86: Make fw_vendor, config_table and runtime sysfs nodes x86 specific
efi/x86: Merge assignments of efi.runtime_version
efi: Add 'runtime' pointer to struct efi
efi/arm: Drop unnecessary references to efi.systab
efi/x86: Drop 'systab' member from struct efi
efi/x86: add headroom to decompressor BSS to account for setup block
efi/x86: Drop redundant .bss section
efi/libstub/x86: Make loaded_image protocol handling mixed mode safe
efi/libstub/x86: Use Exit() boot service to exit the stub on errors
efi/x86: Implement mixed mode boot without the handover protocol
efi/x86: Add true mixed mode entry point into .compat section
efi/arm: Move FDT param discovery code out of efi.c
efi/arm: Move FDT specific definitions into fdtparams.c
efi/arm: Rewrite FDT param discovery routines
efi: Store mask of supported runtime services in struct efi
efi: Add support for EFI_RT_PROPERTIES table
efi: Use more granular check for availability for variable services
efi: Register EFI rtc platform device only when available
infiniband: hfi1: Use EFI GetVariable only when available
scsi: iscsi: Use EFI GetVariable only when available
efi: Use EFI ResetSystem only when available
x86/ima: Use EFI GetVariable only when available
integrity: Check properly whether EFI GetVariable() is available
efi/x86: Use symbolic constants in PE header instead of bare numbers
efi/libstub: Introduce symbolic constants for the stub major/minor version
efi: Bump the Linux EFI stub major version number to #1
efi/arm: Clean EFI stub exit code from cache instead of avoiding it
efi/arm64: Clean EFI stub exit code from cache instead of avoiding it
efi: Mark all EFI runtime services as unsupported on non-EFI boot
efi/libstub/x86: Deal with exit() boot service returning
efi/x86: Ignore the memory attributes table on i386
efi/x86: Preserve %ebx correctly in efi_set_virtual_address_map()
efi/libstub/x86: Use ULONG_MAX as upper bound for all allocations
efi/libstub/arm64: Avoid image_base value from efi_loaded_image
efi/libstub/arm: Fix spurious message that an initrd was loaded

Arvind Sankar (20):
x86/boot: Remove KEEP_SEGMENTS support
efi/x86: Don't depend on firmware GDT layout
x86/boot: Reload GDTR after copying to the end of the buffer
x86/boot: Clear direction and interrupt flags in startup_64
efi/x86: Remove GDT setup from efi_main
x86/boot: GDT limit value should be size - 1
x86/boot: Micro-optimize GDT loading instructions
efi/x86: Mark setup_graphics static
x86/boot/compressed: Fix reloading of GDTR post-relocation
efi/x86: Annotate the LOADED_IMAGE_PROTOCOL_GUID with SYM_DATA
efi/x86: Respect 32-bit ABI in efi32_pe_entry()
efi/x86: Make efi32_pe_entry() more readable
efi/x86: Avoid using code32_start
x86/boot: Use unsigned comparison for addresses
x86/boot/compressed/32: Save the output address instead of recalculating it
efi/x86: Decompress at start of PE image load address
efi/x86: Add kernel preferred address to PE header
efi/x86: Remove extra headroom for setup block
efi/x86: Don't relocate the kernel unless necessary
efi/x86: Fix cast of image argument

Gustavo A. R. Silva (1):
efi/apple-properties: Replace zero-length array with flexible-array member

Hans de Goede (3):
efi/bgrt: Accept BGRT tables with a version of 0
efi: Export boot-services code and data as debugfs-blobs
efi: Add embedded peripheral firmware support

Heinrich Schuchardt (10):
efi/libstub: Add function description of efi_allocate_pages()
efi/libstub: Simplify efi_get_memory_map()
efi/libstub: Describe memory functions
efi/libstub: Describe efi_relocate_kernel()
efi/libstub: Describe RNG functions
efi/libstub: Fix error message in handle_cmdline_files()
efi/esrt: Clean up efi_esrt_init
efi/capsule-loader: Drop superfluous assignment
efi: Don't shadow 'i' in efi_config_parse_tables()
efi/libstub: Add libstub/mem.c to the documentation tree

Lukas Bulwahn (1):
MAINTAINERS: Adjust EFI entry to removing eboot.c

Masahiro Yamada (1):
efi/libstub: Avoid linking libstub/lib-ksyms.o into vmlinux

Nikolai Merinov (1):
partitions/efi: Fix partition name parsing in GUID partition entry

Tom Lendacky (2):
efi/x86: Add TPM related EFI tables to unencrypted mapping checks
efi/x86: Add RNG seed EFI table to unencrypted mapping check

Vladis Dronov (1):
efi: Fix a mistype in comments mentioning efivar_entry_iter_begin()

Documentation/driver-api/firmware/efi/index.rst | 11 +
Documentation/driver-api/firmware/index.rst | 1 +
Documentation/x86/boot.rst | 8 +-
MAINTAINERS | 1 -
arch/arm/boot/compressed/efi-header.S | 6 +-
arch/arm/boot/compressed/head.S | 58 +-
arch/arm64/include/asm/efi.h | 10 -
arch/arm64/kernel/efi-entry.S | 90 +--
arch/arm64/kernel/efi-header.S | 6 +-
arch/arm64/kernel/image-vars.h | 7 +-
arch/ia64/kernel/efi.c | 55 +-
arch/ia64/kernel/esi.c | 21 +-
arch/x86/boot/Makefile | 2 +-
arch/x86/boot/compressed/Makefile | 5 +-
arch/x86/boot/compressed/eboot.h | 31 -
arch/x86/boot/compressed/efi_thunk_64.S | 29 +-
arch/x86/boot/compressed/head_32.S | 92 ++-
arch/x86/boot/compressed/head_64.S | 205 ++++-
arch/x86/boot/header.S | 93 +--
arch/x86/boot/tools/build.c | 106 ++-
arch/x86/include/asm/efi.h | 23 +-
arch/x86/kernel/asm-offsets.c | 1 -
arch/x86/kernel/asm-offsets_32.c | 5 +
arch/x86/kernel/head_32.S | 6 -
arch/x86/kernel/ima_arch.c | 2 +-
arch/x86/kernel/kexec-bzimage64.c | 5 +-
arch/x86/platform/efi/efi.c | 288 ++++----
arch/x86/platform/efi/efi_32.c | 13 +-
arch/x86/platform/efi/efi_64.c | 14 +-
arch/x86/platform/efi/efi_stub_32.S | 21 +-
arch/x86/platform/efi/quirks.c | 6 +-
block/partitions/efi.c | 35 +-
block/partitions/efi.h | 2 +-
drivers/firmware/efi/Kconfig | 5 +
drivers/firmware/efi/Makefile | 4 +-
drivers/firmware/efi/apple-properties.c | 12 +-
drivers/firmware/efi/arm-init.c | 83 +--
drivers/firmware/efi/arm-runtime.c | 18 -
drivers/firmware/efi/capsule-loader.c | 2 +-
drivers/firmware/efi/dev-path-parser.c | 38 +-
drivers/firmware/efi/efi-bgrt.c | 7 +-
drivers/firmware/efi/efi-pstore.c | 4 +-
drivers/firmware/efi/efi.c | 476 +++++-------
drivers/firmware/efi/efivars.c | 2 +-
drivers/firmware/efi/embedded-firmware.c | 147 ++++
drivers/firmware/efi/esrt.c | 6 +-
drivers/firmware/efi/fdtparams.c | 126 ++++
drivers/firmware/efi/libstub/Makefile | 6 +-
drivers/firmware/efi/libstub/arm-stub.c | 193 ++---
drivers/firmware/efi/libstub/arm32-stub.c | 1 +
drivers/firmware/efi/libstub/arm64-stub.c | 16 +-
drivers/firmware/efi/libstub/efi-stub-helper.c | 822 ++++-----------------
drivers/firmware/efi/libstub/efistub.h | 611 ++++++++++++++-
drivers/firmware/efi/libstub/fdt.c | 7 +-
drivers/firmware/efi/libstub/file.c | 258 +++++++
drivers/firmware/efi/libstub/hidden.h | 6 +
drivers/firmware/efi/libstub/mem.c | 309 ++++++++
drivers/firmware/efi/libstub/random.c | 136 +---
drivers/firmware/efi/libstub/randomalloc.c | 124 ++++
drivers/firmware/efi/libstub/skip_spaces.c | 11 +
drivers/firmware/efi/libstub/string.c | 56 ++
.../firmware/efi/libstub/x86-stub.c | 298 +++-----
drivers/firmware/efi/memattr.c | 13 +-
drivers/firmware/efi/reboot.c | 4 +-
drivers/firmware/efi/runtime-wrappers.c | 4 +-
drivers/firmware/efi/vars.c | 2 +-
drivers/firmware/pcdp.c | 8 +-
drivers/infiniband/hw/hfi1/efivar.c | 2 +-
drivers/rtc/Makefile | 4 -
drivers/rtc/rtc-efi-platform.c | 35 -
drivers/scsi/isci/init.c | 2 +-
fs/efivarfs/super.c | 2 +-
include/linux/efi.h | 700 +++---------------
include/linux/efi_embedded_fw.h | 41 +
include/linux/pe.h | 21 +
security/integrity/platform_certs/load_uefi.c | 2 +-
76 files changed, 3197 insertions(+), 2685 deletions(-)
create mode 100644 Documentation/driver-api/firmware/efi/index.rst
delete mode 100644 arch/x86/boot/compressed/eboot.h
create mode 100644 drivers/firmware/efi/embedded-firmware.c
create mode 100644 drivers/firmware/efi/fdtparams.c
create mode 100644 drivers/firmware/efi/libstub/file.c
create mode 100644 drivers/firmware/efi/libstub/hidden.h
create mode 100644 drivers/firmware/efi/libstub/mem.c
create mode 100644 drivers/firmware/efi/libstub/randomalloc.c
create mode 100644 drivers/firmware/efi/libstub/skip_spaces.c
rename arch/x86/boot/compressed/eboot.c => drivers/firmware/efi/libstub/x86-stub.c (80%)
delete mode 100644 drivers/rtc/rtc-efi-platform.c
create mode 100644 include/linux/efi_embedded_fw.h

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Next in thread: pr-tracker-bot: "Re: [GIT PULL] EFI changes for v5.7"
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