[PATCH v2 00/35] vbe: Verified Boot for Embedded initial support
Simon Glass
sjg at chromium.org
Sat Jul 30 23:52:02 CEST 2022
This adds the concept of a VBE method to U-Boot, along with an
implementation of the 'VBE simple' method, basically a simple way of
updating firmware in MMC from userspace and monitoring it from U-Boot.
VBE simple is implemented in fwupd. U-Boot's role is to set up the
device tree with the required firmware-update properties and provide the
developer with information about the current VBE state. To that end this
series includes a new 'vbe' command that allows VBE methods to be listed
and examined.
As part of this work, support for doing FDT fixups via the event interface
is provided, along with the ability to write to the device tree via the
ofnode interface.
Another (significant) change is that bootmeths now have a 'global' flag,
to allow the implementation of EFI bootmgr (and VBE) to be cleaned up.
The 'system' bootdev is no-longer needed and these bootmeths are scanned
first.
Further work is needed to pull everything together, but this is a step
along the way.
Changes in v2:
- Add new patch with some documentation and links for VBE
- Add a reference to VBE documentation in the header file and commit
- Make VBE a global bootmeth
- Introduce the concept of global bootmeths (various patches)
- Correct the clang / LTO / event bug from v1
Simon Glass (35):
vbe: Add some documentation
video: Renname vbe.h to vesa.h
video: Rename structs and functions to avoid VBE
dm: core: Split out the declaration of ofnode
dm: core: Add a note about how livetree updates work
dm: core: Introduce support for multiple trees
dm: core: Move ofnode-writing test to ofnode
dm: core: Swap parameters of ofnode_write_prop()
dm: core: Tidy up ofnode-writing test
dm: core: Prepare for updating the device tree with ofnode
dm: core: Allow writing to a flat tree with ofnode
dm: core: Add support for writing u32 with ofnode
dm: core: Support sandbox with read interface
bootstd: Drop delays in the tests
bootstd: Fix comment in bootmeth test
bootstd: Detect empty bootmeth ordering
bootstd: Provide a bootmeth method to obtain state info
bootstd: Tidy up var naming in bootdev_setup_iter_order()
bootstd: Allow bootmeths to be marked as global
bootstd: Allow EFI bootmgr to support an invalid bootflow
bootstd: Allow the bootdev to be optional in bootflows
bootstd: Tidy comments in bootflow_scan_bootdev()
bootstd: Support bootflows with global bootmeths
dm: core: Call dm_scan_other() when setting up for tests
bootstd: Allow scanning for global bootmeths separately
bootstd: Always create the EFI bootmgr bootmeth
bootstd: Drop the system bootdev
event: Change EVENT_SPY to global
event: Add an event for device tree fixups
vbe: Add initial support for VBE
vbe: Support VBE simple
bootstd: Add vbe bootmeth into sandbox
bootstd: Update documentation
bootstd: Check building without global bootmeths
vbe: Add a new vbe command
arch/sandbox/dts/sandbox.dtsi | 13 ++
arch/sandbox/dts/test.dts | 15 ++
arch/sandbox/include/asm/test.h | 11 +
arch/x86/lib/bios.c | 12 +-
arch/x86/lib/coreboot_table.c | 2 +-
arch/x86/lib/fsp/fsp_graphics.c | 4 +-
boot/Kconfig | 29 +++
boot/Makefile | 5 +-
boot/bootdev-uclass.c | 15 +-
boot/bootflow.c | 63 +++++-
boot/bootmeth-uclass.c | 105 +++++++--
boot/bootmeth_distro.c | 14 ++
boot/bootmeth_efi_mgr.c | 35 ++-
boot/bootstd-uclass.c | 13 +-
boot/image-fdt.c | 11 +
boot/system_bootdev.c | 66 ------
boot/vbe.c | 119 ++++++++++
boot/vbe_simple.c | 315 ++++++++++++++++++++++++++
cmd/Kconfig | 10 +
cmd/Makefile | 1 +
cmd/bootflow.c | 12 +-
cmd/bootmeth.c | 4 +-
cmd/elf.c | 2 +-
cmd/read.c | 3 +-
cmd/vbe.c | 87 +++++++
common/event.c | 3 +
configs/sandbox_flattree_defconfig | 2 +
doc/develop/bootstd.rst | 89 +++++---
doc/develop/driver-model/livetree.rst | 60 ++++-
doc/develop/index.rst | 1 +
doc/develop/vbe.rst | 26 +++
doc/usage/cmd/bootmeth.rst | 9 +-
drivers/bios_emulator/atibios.c | 18 +-
drivers/core/of_access.c | 57 ++++-
drivers/core/ofnode.c | 81 +++----
drivers/pci/pci_rom.c | 14 +-
drivers/video/broadwell_igd.c | 4 +-
drivers/video/coreboot.c | 4 +-
drivers/video/efi.c | 4 +-
drivers/video/ivybridge_igd.c | 4 +-
drivers/video/vesa.c | 4 +-
include/bios_emul.h | 6 +-
include/bootflow.h | 20 +-
include/bootmeth.h | 65 +++++-
include/bootstd.h | 2 +
include/dm/of_access.h | 22 +-
include/dm/ofnode.h | 122 +++++-----
include/dm/ofnode_decl.h | 85 +++++++
include/event.h | 21 +-
include/of_live.h | 16 ++
include/test/test.h | 2 +
include/vbe.h | 147 ++++--------
include/vesa.h | 116 ++++++++++
lib/efi_loader/Kconfig | 1 +
lib/elf.c | 2 +-
lib/of_live.c | 14 +-
test/boot/Makefile | 4 +
test/boot/bootflow.c | 106 +++++++--
test/boot/bootmeth.c | 55 ++++-
test/boot/vbe_simple.c | 115 ++++++++++
test/dm/ofnode.c | 132 +++++++++++
test/dm/test-fdt.c | 53 -----
test/py/tests/test_event_dump.py | 1 +
test/test-main.c | 7 +-
64 files changed, 1930 insertions(+), 530 deletions(-)
delete mode 100644 boot/system_bootdev.c
create mode 100644 boot/vbe.c
create mode 100644 boot/vbe_simple.c
create mode 100644 cmd/vbe.c
create mode 100644 doc/develop/vbe.rst
create mode 100644 include/dm/ofnode_decl.h
create mode 100644 include/vesa.h
create mode 100644 test/boot/vbe_simple.c
--
2.37.1.455.g008518b4e5-goog
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