From: Ard Biesheuvel ardb@kernel.org
This is the final batch of changes to bring linux-6.1.y in sync with 6.6 and later in terms of compatibility with tightened boot security requirements imposed by MicroSoft, compliance with which is a prerequisite for them to be willing to resume signing distro shim images with the MS 3rd party secure boot certificate.
Without this, distros can only boot on off-the-shelf x86 PCs after disabling secure boot explicitly.
Most of these changes appeared in v6.8 and have been backported to v6.6 already.
Ard Biesheuvel (20): x86/efi: Drop EFI stub .bss from .data section x86/efi: Disregard setup header of loaded image x86/efistub: Reinstate soft limit for initrd loading x86/efi: Drop alignment flags from PE section headers x86/boot: Remove the 'bugger off' message x86/boot: Omit compression buffer from PE/COFF image memory footprint x86/boot: Drop redundant code setting the root device x86/boot: Drop references to startup_64 x86/boot: Grab kernel_info offset from zoffset header directly x86/boot: Set EFI handover offset directly in header asm x86/boot: Define setup size in linker script x86/boot: Derive file size from _edata symbol x86/boot: Construct PE/COFF .text section from assembler x86/boot: Drop PE/COFF .reloc section x86/boot: Split off PE/COFF .data section x86/boot: Increase section and file alignment to 4k/512 x86/efistub: Use 1:1 file:memory mapping for PE/COFF .compat section x86/sme: Move early SME kernel encryption handling into .head.text x86/sev: Move early startup code into .head.text section x86/efistub: Remap kernel text read-only before dropping NX attribute
Hou Wenlong (2): x86/head/64: Add missing __head annotation to startup_64_load_idt() x86/head/64: Move the __head definition to <asm/init.h>
Pasha Tatashin (1): x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros
arch/x86/boot/Makefile | 2 +- arch/x86/boot/compressed/Makefile | 2 +- arch/x86/boot/compressed/misc.c | 1 + arch/x86/boot/compressed/sev.c | 3 + arch/x86/boot/compressed/vmlinux.lds.S | 6 +- arch/x86/boot/header.S | 211 ++++++--------- arch/x86/boot/setup.ld | 14 +- arch/x86/boot/tools/build.c | 273 +------------------- arch/x86/include/asm/boot.h | 1 + arch/x86/include/asm/init.h | 2 + arch/x86/include/asm/mem_encrypt.h | 8 +- arch/x86/include/asm/page_types.h | 12 +- arch/x86/include/asm/sev.h | 10 +- arch/x86/kernel/amd_gart_64.c | 2 +- arch/x86/kernel/head64.c | 7 +- arch/x86/kernel/sev-shared.c | 23 +- arch/x86/kernel/sev.c | 11 +- arch/x86/mm/mem_encrypt_boot.S | 4 +- arch/x86/mm/mem_encrypt_identity.c | 58 ++--- arch/x86/mm/pat/set_memory.c | 6 +- arch/x86/mm/pti.c | 2 +- drivers/firmware/efi/libstub/Makefile | 7 - drivers/firmware/efi/libstub/x86-stub.c | 58 ++--- 23 files changed, 194 insertions(+), 529 deletions(-)