[U-Boot] [RFC 00/10] efi_loader: bunch of EFI work for distro boot

[Rob Clark <robdclark@gmail.com>]

I still need to do some testing for net boot (but I think I didn't
screw anything up there), so just sending as an RFC for now.

I had to do a bunch of patch rejuggling to get this into a sensible
sequence of patches.  Hopefully I didn't flub anything too badly in
the process.

This patchset adds better devicepath handling to make upstream grub
work, reworks and cleans up bootefi's handling of boot device and
boot devicepath (making it signifcantly less hacky), adds file
support, and adds support to load_image() from a file.

This plus efi variable support (which I'm still working on and will
send separately), gets u-boot to the point where we can boot
\EFI\BOOT\BOOTAA64.efi, which can't find the boot-order related
EFI variables, and then loads fallback.efi to scan the boot disk
looking for boot.csv's which tell it about installed distro's) and
then finally loads the first distro's shim.efi or grubaa64.efi.

(Once I have support to write variables and saveenv in ExitBootServices
then it should only hit fallback.efi on first boot.)

Peter Jones (2):
  efi: fill in disk signature bits of hard drive device path.
  efi: add some more device path structures

Rob Clark (8):
  efi_loader: add back optional efi_handler::open()
  fs: add fs_readdir()
  efi_loader: add device-path utils
  efi_loader: use proper device-paths for partitions
  efi_loader: use proper device-paths for net
  efi_loader: refactor boot device and loaded_image handling
  efi_loader: add file/filesys support
  efi_loader: support load_image() from a file-path

 cmd/bootefi.c                     | 163 ++++---------
 disk/part_dos.c                   |  12 +-
 disk/part_efi.c                   |  20 ++
 fs/fat/fat.c                      |  59 +++--
 fs/fs.c                           |  46 ++++
 include/blk.h                     |  15 ++
 include/efi.h                     |   6 +
 include/efi_api.h                 | 114 ++++++++-
 include/efi_loader.h              |  47 +++-
 include/fat.h                     |   4 +-
 include/fs.h                      |  23 ++
 include/part_efi.h                |   4 -
 lib/efi_loader/Makefile           |   3 +-
 lib/efi_loader/efi_boottime.c     | 156 +++++++++++--
 lib/efi_loader/efi_device_path.c  | 408 ++++++++++++++++++++++++++++++++
 lib/efi_loader/efi_disk.c         | 103 ++++++--
 lib/efi_loader/efi_file.c         | 477 ++++++++++++++++++++++++++++++++++++++
 lib/efi_loader/efi_image_loader.c |   3 +
 lib/efi_loader/efi_net.c          |  24 +-
 19 files changed, 1483 insertions(+), 204 deletions(-)
 create mode 100644 lib/efi_loader/efi_device_path.c
 create mode 100644 lib/efi_loader/efi_file.c

-- 
2.13.0