Pull x86 boot updates from Borislav Petkov:
"Avoid the baremetal decompressor code when booting on an EFI machine.
This is mandated by the current tightening of EFI executables
requirements when used in a secure boot scenario. More specifically,
an EFI executable cannot have a single section with RWX permissions,
which conflicts with the in-place kernel decompression that is done
today.
Instead, the things required by the booting kernel image are done in
the EFI stub now.
Work by Ard Biesheuvel"
* tag 'x86_boot_for_v6.6_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
x86/efistub: Avoid legacy decompressor when doing EFI boot
x86/efistub: Perform SNP feature test while running in the firmware
efi/libstub: Add limit argument to efi_random_alloc()
x86/decompressor: Factor out kernel decompression and relocation
x86/decompressor: Move global symbol references to C code
decompress: Use 8 byte alignment
x86/efistub: Prefer EFI memory attributes protocol over DXE services
x86/efistub: Perform 4/5 level paging switch from the stub
x86/decompressor: Merge trampoline cleanup with switching code
x86/decompressor: Pass pgtable address to trampoline directly
x86/decompressor: Only call the trampoline when changing paging levels
x86/decompressor: Call trampoline directly from C code
x86/decompressor: Avoid the need for a stack in the 32-bit trampoline
x86/decompressor: Use standard calling convention for trampoline
x86/decompressor: Call trampoline as a normal function
x86/decompressor: Assign paging related global variables earlier
x86/decompressor: Store boot_params pointer in callee save register
x86/efistub: Clear BSS in EFI handover protocol entrypoint
x86/decompressor: Avoid magic offsets for EFI handover entrypoint
x86/efistub: Simplify and clean up handover entry code
...