[PATCH v2 0/5] Support EFI multiboot loading using PE binary

[Frediano Ziglio <frediano.ziglio@xxxxxxxxx>]

Testing this feature in preparation for UEFI CA memory mitigation
requirements I found some issues causing the loading to fail and
other minor issues.
Details in series commit messages.
This is adding an additional way to boot Xen, using GrUB2+EFI
(xen.efi:__efi64_mb2_start).

Changes since v1:
- Changed title, apparently this is a kind of new mode;
- address lot of comments (see "Changes" in other messages).

Frediano Ziglio (5):
  x86: Put trampoline in .init.data section
  x86: Set xen_phys_start and trampoline_xen_phys_start earlier
  x86: Force proper gdt_boot_base setting
  x86: Compensate relocation in case of EFI
  x86: Rollback relocation in case of EFI multiboot

 xen/arch/x86/boot/Makefile          |  2 +-
 xen/arch/x86/boot/efi-reloc-image.c | 40 ++++++++++++++
 xen/arch/x86/boot/efi-reloc-image.h | 85 +++++++++++++++++++++++++++++
 xen/arch/x86/boot/head.S            | 72 ++++++++++++++++++------
 xen/arch/x86/efi/efi-boot.h         | 64 ++--------------------
 5 files changed, 187 insertions(+), 76 deletions(-)
 create mode 100644 xen/arch/x86/boot/efi-reloc-image.c
 create mode 100644 xen/arch/x86/boot/efi-reloc-image.h

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2.45.2