[PATCH v3 00/18] bootstd: Add a bootmeth for ChromiumOS on x86

[Bin Meng]

On Wed, Jul 12, 2023 at 11:04 PM Simon Glass <sjg at chromium.org> wrote:
>
> This series adds a simple bootmeth for ChromiumOS on x86. It uses zimage
> to boot the kernel.
>
> Full verified boot is not included at this stage - that is still a
> separate chunk of code to be brought into standard boot at some point.
> For now it just obtains the kernel and command line and boots. This should
> be enough to boot Chrome OS from coreboot on all x86 machines in
> circulation, although only Brya (2022) and Coral (2017) have been tested.
>
> ChromiumOS needs quite large kernel parameters, to hold the DM verity
> settings and other pieces. This makes it painful to modify just one
> parameter, since the whole cmdline must be adjusted at once. To cope with
> this, a new cmdline-editing feature is provided: the 'bootflow cmdline'
> command allows individual parameters to be added, modified and deleted.
>
> To deal with enabling debug console, a variant supports setting 'earlycon'
> and 'console' automatically. The 'bdinfo' command is updated to show
> serial-port info also.
>
> Booting the zimage is now done programmatically, rather than running
> through the command-line interface. Minor tweaks are made to the coreboot
> and coral config so that booting works correctly.
>
> Note that the ACPI tables are not updated with the required firmware
> information in this series, so a warning is shown on boot. This will be
> addressed later since it requires quite a bit of configuration.
>
> Finally, this fixes a recently introduced bug in unit testing and updates
> the algorithm to avoid running flat-tree tests which don't actually use
> the devicetree.
>
> Changes in v3:
> - Drop CONFIG_MISC and CONFIG_NVMEM
> - Update commit message
> - Separate out patch to restore test behaviour on failure
>

series applied to u-boot-x86, thanks!