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Message-ID: <CAMj1kXEH+M6j0W8GbwmJ6B2g1Kxoj01XW0P2a5_1OBVFoiF7ZA@mail.gmail.com>
Date: Mon, 1 Jun 2020 16:42:44 +0200
From: Ard Biesheuvel <ardb@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Borislav Petkov <bp@...en8.de>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] EFI changes for v5.8
On Mon, 1 Jun 2020 at 15:24, Ingo Molnar <mingo@...nel.org> wrote:
>
> Linus,
>
> Please pull the latest efi/core git tree from:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi-core-2020-06-01
>
> # HEAD: e9524fb97ab5b41b85e1d3408f8e513433798f3c efi/x86: Don't blow away existing initrd
>
> The EFI changes for this cycle are:
>
> - preliminary changes for RISC-V
> - Add support for setting the resolution on the EFI framebuffer
> - Simplify kernel image loading for arm64
> - Move .bss into .data via the linker script instead of relying on symbol
> annotations.
> - Get rid of __pure getters to access global variables
> - Clean up the config table matching arrays
> - Rename pr_efi/pr_efi_err to efi_info/efi_err, and use them consistently
> - Simplify and unify initrd loading
> - Parse the builtin command line on x86 (if provided)
> - Implement printk() support, including support for wide character strings
> - Simplify GDT handling in early mixed mode thunking code
> - Some other minor fixes and cleanups
>
> Thanks,
>
> Ingo
>
Please note that Stephen reported a conflict with the ARM32 tree, due
to the replacement of all instances of pr_efi_err() with efi_err(),
including a couple in some ARM code that is being modified.
https://lore.kernel.org/linux-next/20200529152907.2205a298@canb.auug.org.au/
> ------------------>
> Ard Biesheuvel (20):
> efi/libstub: Make initrd file loader configurable
> efi/libstub: unify EFI call wrappers for non-x86
> efi/libstub/random: Align allocate size to EFI_ALLOC_ALIGN
> efi/libstub/random: Increase random alloc granularity
> efi/libstub/arm64: Replace 'preferred' offset with alignment check
> efi/libstub/arm64: Simplify randomized loading of kernel image
> efi/libstub: Add API function to allocate aligned memory
> efi/libstub/arm64: Switch to ordinary page allocator for kernel image
> efi/libstub: Move efi_relocate_kernel() into separate source file
> efi/libstub: Drop __pure getter for efi_system_table
> efi/libstub: Drop __pure getters for EFI stub options
> efi/libstub/x86: Avoid getter function for efi_is64
> efi: Clean up config table description arrays
> efi: Move arch_tables check to caller
> efi/libstub: Re-enable command line initrd loading for x86
> efi/libstub/x86: Work around LLVM ELF quirk build regression
> efi/libstub: Make efi_printk() input argument const char*
> efi/libstub: Use pool allocation for the command line
> efi/efivars: Add missing kobject_put() in sysfs entry creation error path
> efi/libstub: Add missing prototype for PE/COFF entry point
>
> Arvind Sankar (56):
> efi/gop: Remove redundant current_fb_base
> efi/gop: Move check for framebuffer before con_out
> efi/gop: Get mode information outside the loop
> efi/gop: Factor out locating the gop into a function
> efi/gop: Slightly re-arrange logic of find_gop
> efi/gop: Move variable declarations into loop block
> efi/gop: Use helper macros for populating lfb_base
> efi/gop: Use helper macros for find_bits
> efi/gop: Remove unreachable code from setup_pixel_info
> efi/gop: Add prototypes for query_mode and set_mode
> efi/gop: Allow specifying mode number on command line
> efi/gop: Allow specifying mode by <xres>x<yres>
> efi/gop: Allow specifying depth as well as resolution
> efi/gop: Allow automatically choosing the best mode
> efi/arm: Remove __efistub_global annotation
> efi/x86: Remove __efistub_global and add relocation check
> efi: Kill __efistub_global
> efi/x86: Use correct size for boot_params
> efi/libstub: Add a helper function to split 64-bit values
> efi/libstub: Move pr_efi/pr_efi_err into efi namespace
> efi/x86: Use efi_err for error messages
> efi/gop: Use efi_err for error messages
> efi/tpm: Use efi_err for error messages
> efi/libstub: Upgrade ignored dtb= argument message to error
> efi/x86: Move command-line initrd loading to efi_main
> efi/libstub: Unify initrd loading across architectures
> efi/x86: Support builtin command line
> efi/libstub: Check return value of efi_parse_options
> efi/libstub: Fix mixed mode boot issue after macro refactor
> efi/libstub: Include dependencies of efistub.h
> efi/libstub: Rename efi_[char16_]printk to efi_[char16_]puts
> efi/libstub: Buffer output of efi_puts
> efi/libstub: Add a basic printf implementation
> efi/libstub: Optimize for size instead of speed
> efi/printf: Drop %n format and L qualifier
> efi/printf: Add 64-bit and 8-bit integer support
> efi/printf: Factor out flags parsing and handle '%' earlier
> efi/printf: Fix minor bug in precision handling
> efi/printf: Merge 'p' with the integer formats
> efi/printf: Factor out width/precision parsing
> efi/printf: Factor out integer argument retrieval
> efi/printf: Handle null string input
> efi/printf: Refactor code to consolidate padding and output
> efi/printf: Abort on invalid format
> efi/printf: Turn vsprintf into vsnprintf
> efi/libstub: Implement printk-style logging
> efi/libstub: Add definitions for console input and events
> efi/gop: Add an option to list out the available GOP modes
> efi/printf: Add support for wchar_t (UTF-16)
> efi/libstub: Add UTF-8 decoding to efi_puts
> efi/libstub: Use %ls for filename
> efi/libstub: Get the exact UTF-8 length
> efi/libstub: Use snprintf with %ls to convert the command line
> efi/libstub: Don't parse overlong command lines
> efi/x86: Drop the special GDT for the EFI thunk
> efi/x86: Don't blow away existing initrd
>
> Atish Patra (1):
> efi/libstub: Move arm-stub to a common file
>
> Joe Perches (1):
> efi/libstub: Correct comment typos
>
> Zou Wei (1):
> efi/libstub/arm: Make install_memreserve_table static
>
>
> Documentation/fb/efifb.rst | 38 +-
> arch/arm/Kconfig | 2 +-
> arch/arm/boot/compressed/efi-header.S | 2 +-
> arch/arm/boot/compressed/vmlinux.lds.S | 2 +-
> arch/arm/include/asm/efi.h | 8 -
> arch/arm64/Kconfig | 2 +-
> arch/arm64/include/asm/efi.h | 8 -
> arch/arm64/kernel/efi-entry.S | 2 +-
> arch/arm64/kernel/efi-header.S | 2 +-
> arch/ia64/kernel/efi.c | 12 +-
> arch/x86/boot/compressed/efi_thunk_64.S | 19 +-
> arch/x86/boot/compressed/vmlinux.lds.S | 1 +
> arch/x86/include/asm/efi.h | 50 +-
> arch/x86/platform/efi/efi.c | 8 +-
> arch/x86/xen/efi.c | 2 +-
> drivers/firmware/efi/Kconfig | 15 +-
> drivers/firmware/efi/arm-init.c | 4 +-
> drivers/firmware/efi/efi.c | 44 +-
> drivers/firmware/efi/efivars.c | 4 +-
> drivers/firmware/efi/libstub/Makefile | 47 +-
> drivers/firmware/efi/libstub/alignedmem.c | 57 ++
> drivers/firmware/efi/libstub/arm32-stub.c | 12 +-
> drivers/firmware/efi/libstub/arm64-stub.c | 106 ++--
> drivers/firmware/efi/libstub/efi-stub-helper.c | 381 +++++++++-----
> .../efi/libstub/{arm-stub.c => efi-stub.c} | 93 ++--
> drivers/firmware/efi/libstub/efistub.h | 191 +++++--
> drivers/firmware/efi/libstub/fdt.c | 24 +-
> drivers/firmware/efi/libstub/file.c | 48 +-
> drivers/firmware/efi/libstub/gop.c | 583 +++++++++++++++++----
> drivers/firmware/efi/libstub/mem.c | 191 +------
> drivers/firmware/efi/libstub/pci.c | 10 +-
> drivers/firmware/efi/libstub/randomalloc.c | 6 +-
> drivers/firmware/efi/libstub/relocate.c | 174 ++++++
> drivers/firmware/efi/libstub/secureboot.c | 4 +-
> drivers/firmware/efi/libstub/tpm.c | 2 +-
> drivers/firmware/efi/libstub/vsprintf.c | 564 ++++++++++++++++++++
> drivers/firmware/efi/libstub/x86-stub.c | 155 +++---
> include/linux/efi.h | 6 +-
> 38 files changed, 2050 insertions(+), 829 deletions(-)
> create mode 100644 drivers/firmware/efi/libstub/alignedmem.c
> rename drivers/firmware/efi/libstub/{arm-stub.c => efi-stub.c} (83%)
> create mode 100644 drivers/firmware/efi/libstub/relocate.c
> create mode 100644 drivers/firmware/efi/libstub/vsprintf.c
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