From: Ard Biesheuvel <ardb@xxxxxxxxxx> These are the remaining patches that bring v6.1 in sync with v6.6 in terms of support for 4k section alignment and strict separation of executable and writable mappings. More details in [0]. [0] https://lkml.kernel.org/r/CAMj1kXE5y%2B6Fef1SqsePO1p8eGEL_qKR9ZkNPNKb-y6P8-7YmQ%40mail.gmail.com Ard Biesheuvel (15): arm64: efi: Limit allocations to 48-bit addressable physical region x86/efistub: Simplify and clean up handover entry code x86/decompressor: Avoid magic offsets for EFI handover entrypoint x86/efistub: Clear BSS in EFI handover protocol entrypoint x86/decompressor: Move global symbol references to C code efi/libstub: Add limit argument to efi_random_alloc() x86/efistub: Perform 4/5 level paging switch from the stub x86/decompressor: Factor out kernel decompression and relocation x86/efistub: Prefer EFI memory attributes protocol over DXE services x86/efistub: Perform SNP feature test while running in the firmware x86/efistub: Avoid legacy decompressor when doing EFI boot efi/x86: Avoid physical KASLR on older Dell systems x86/efistub: Avoid placing the kernel below LOAD_PHYSICAL_ADDR x86/boot: Rename conflicting 'boot_params' pointer to 'boot_params_ptr' x86/boot: efistub: Assign global boot_params variable Evgeniy Baskov (1): efi/libstub: Add memory attribute protocol definitions Johan Hovold (1): efi: efivars: prevent double registration Yuntao Wang (1): efi/x86: Fix the missing KASLR_FLAG bit in boot_params->hdr.loadflags Documentation/x86/boot.rst | 2 +- arch/arm64/include/asm/efi.h | 1 + arch/x86/boot/compressed/Makefile | 5 + arch/x86/boot/compressed/acpi.c | 14 +- arch/x86/boot/compressed/cmdline.c | 4 +- arch/x86/boot/compressed/efi_mixed.S | 107 +++---- arch/x86/boot/compressed/head_32.S | 32 --- arch/x86/boot/compressed/head_64.S | 63 +---- arch/x86/boot/compressed/ident_map_64.c | 7 +- arch/x86/boot/compressed/kaslr.c | 26 +- arch/x86/boot/compressed/misc.c | 69 +++-- arch/x86/boot/compressed/misc.h | 1 - arch/x86/boot/compressed/pgtable_64.c | 9 +- arch/x86/boot/compressed/sev.c | 114 ++++---- arch/x86/include/asm/boot.h | 10 + arch/x86/include/asm/efi.h | 14 +- arch/x86/include/asm/sev.h | 7 + drivers/firmware/efi/libstub/Makefile | 1 + drivers/firmware/efi/libstub/alignedmem.c | 2 + drivers/firmware/efi/libstub/arm64-stub.c | 7 +- drivers/firmware/efi/libstub/efi-stub-helper.c | 2 + drivers/firmware/efi/libstub/efistub.h | 28 +- drivers/firmware/efi/libstub/mem.c | 2 + drivers/firmware/efi/libstub/randomalloc.c | 14 +- drivers/firmware/efi/libstub/x86-5lvl.c | 95 +++++++ drivers/firmware/efi/libstub/x86-stub.c | 295 +++++++++++--------- drivers/firmware/efi/libstub/x86-stub.h | 17 ++ drivers/firmware/efi/vars.c | 13 +- include/linux/efi.h | 1 + 29 files changed, 560 insertions(+), 402 deletions(-) create mode 100644 drivers/firmware/efi/libstub/x86-5lvl.c create mode 100644 drivers/firmware/efi/libstub/x86-stub.h -- 2.44.0.278.ge034bb2e1d-goog
