After doing some cleanup work on the EFI code in head_64.S, the mixed
mode code in particular, I noticed that the memory encryption pieces
could use some attention as well, so I cleaned that up too.
I have been sitting on these patches since November, waiting for the
right time to post them, i.e., after the SEV/SNP review had finished.
This has yet to happen, so I'm posting them now instead. Please feel
free to disregard for the time being, and propose a suitable timeframe
to repost them if this is likely to conflict with ongoing work.
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Michael Roth <michael.roth@xxxxxxx>
Ard Biesheuvel (6):
x86/head_64: clean up mixed mode 32-bit entry code
efi/x86: simplify IDT/GDT preserve/restore
x86/compressed: move startup32_load_idt() out of startup code
x86/compressed: move startup32_check_sev_cbit out of startup code
x86/compressed: adhere to calling convention in
get_sev_encryption_bit()
x86/compressed: only build mem_encrypt.S if AMD_MEM_ENCRYPT=y
arch/x86/boot/compressed/Makefile | 8 +-
arch/x86/boot/compressed/efi_mixed.S | 352 ++++++++++++++++++++
arch/x86/boot/compressed/efi_thunk_64.S | 195 -----------
arch/x86/boot/compressed/head_32.S | 4 -
arch/x86/boot/compressed/head_64.S | 309 +----------------
arch/x86/boot/compressed/mem_encrypt.S | 146 +++++++-
drivers/firmware/efi/libstub/x86-stub.c | 3 +-
7 files changed, 506 insertions(+), 511 deletions(-)
create mode 100644 arch/x86/boot/compressed/efi_mixed.S
delete mode 100644 arch/x86/boot/compressed/efi_thunk_64.S
--
2.35.1
