[PATCH v9 0/9] efi: Improvements to U-Boot running on top of UEFI

Simon Glass sjg at chromium.org
Thu Jan 13 22:54:27 CET 2022


Hi Heinrich,

On Thu, 13 Jan 2022 at 14:08, Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
>
>
>
> Am 13. Januar 2022 20:39:15 MEZ schrieb Simon Glass <sjg at chromium.org>:
> >Hi Heinrich,
> >
> >On Tue, 4 Jan 2022 at 03:51, Simon Glass <sjg at chromium.org> wrote:
> >>
> >> At present U-Boot can be built as an EFI app, but it is really just for
> >> testing, with very few features. Instead, the payload build is used for
> >> booting on top of UEFI, where U-Boot takes over the machine immediately
> >> and supplies its own drivers.
> >>
> >> But the app could be made more useful.
> >>
> >> This series provides access to EFI block devices and the video console
> >> within U-Boot. It also restructures the app to make it possible to boot
> >> a kernel, although further work is needed to implement this.
> >>
> >> This can be thought of as making U-Boot perform a little like 'grub', in
> >> that it runs purely based on UEFI-provided services.
> >>
> >> Of course a lot more work is required, but this is a start.
> >>
> >> Note: It would be very useful to include qemu tests of the app and stub
> >> in CI.
> >>
> >> This is available at u-boot-dm/efi-working
> >>
> >> Changes in v9:
> >> - Add a comment as to why printf() cannot be used
> >> - Comment out storing the EFI memory map in the app and update commit message
> >> - Drop changes previously applied
> >>
> >> Changes in v8:
> >> - Add new patch to tidy up header comments
> >>
> >> Changes in v7:
> >> - Rebase on -master instead of -next
> >>
> >> Changes in v6:
> >> - Fix typo in function comment
> >>
> >> Changes in v5:
> >> - Add new patch to avoid using the 64-bit link script for the EFI app
> >> - Add new patch to build the 64-bit app properly
> >> - Add new patch to round out the link script for 64-bit EFI
> >> - Add new patch to set the correct link flags for the 64-bit EFI app
> >> - Add new patch to tweak the code used for the 64-bit EFI app
> >> - Add various patches to fix up the 64-bit app so that it boots
> >>
> >> Changes in v2:
> >> - Add a sentence about what the patch does
> >> - Add new patch to support the efi command in the app
> >>
> >> Simon Glass (9):
> >>   efi: Move exit_boot_services into a function
> >>   x86: efi: Update efi_get_next_mem_desc() to avoid needing a map
> >>   efi: Support the efi command in the app
> >>   x86: efi: Tweak the code used for the 64-bit EFI app
> >>   x86: efi: Round out the link script for 64-bit EFI
> >>   x86: efi: Don't use the 64-bit link script for the EFI app
> >>   x86: efi: Set the correct link flags for the 64-bit EFI app
> >>   efi: Build the 64-bit app properly
> >>   efi: Tidy up some comments in efi header
> >>
> >>  Makefile                        |  4 +-
> >>  arch/x86/config.mk              | 15 +++++--
> >>  arch/x86/cpu/config.mk          |  2 +-
> >>  arch/x86/cpu/efi/payload.c      |  8 ++--
> >>  arch/x86/cpu/x86_64/cpu.c       |  5 +++
> >>  arch/x86/lib/Makefile           |  5 +--
> >>  arch/x86/lib/elf_x86_64_efi.lds |  5 ++-
> >>  arch/x86/lib/relocate.c         |  2 +
> >>  cmd/Makefile                    |  2 +-
> >>  cmd/efi.c                       | 78 +++++++++++++++++++++------------
> >>  include/efi.h                   | 64 +++++++++++++++++++++++----
> >>  lib/efi/efi.c                   | 72 ++++++++++++++++++++++++++++++
> >>  lib/efi/efi_app.c               | 42 ++++++++++++++++++
> >>  lib/efi/efi_stub.c              | 66 +++++-----------------------
> >>  14 files changed, 263 insertions(+), 107 deletions(-)
> >>
> >> --
> >> 2.34.1.448.ga2b2bfdf31-goog
> >>
> >
> >Does this series look OK to you now? I'd like to put it to bed.
>
> I just need to find time to create the next pull request.

OK thanks.

Regards,
SImon


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