Commit graph

8 commits

Author SHA1 Message Date
Simon Glass
22061d3d2a bootstd: Add a new bootmeth method to set the bootflow
Normally the bootmeth driver reads the bootflow from the bootdev, since
it knows the correct way to do it.

However it is easier for some bootdevs to handle this themselves. For
example, reading from SPI flash is quite different from other devices.

Add a way for the bootdev to pass a bootflow to the bootmeth, so that
this can be supported.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23 18:11:41 -05:00
Simon Glass
24d8e1b37b bootstd: Allow reading a logo for the OS
Some operating systems provide a logo in bmp format. Read this in if
present so it can be displayed in the menu.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-16 18:26:50 -05:00
Simon Glass
b190deb895 bootstd: Add a way to set up a bootflow
Add a function to init a bootflow, to reduce code duplication.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-31 11:02:44 -04:00
Simon Glass
c627cfc14c bootstd: Allow scanning for global bootmeths separately
Typically we want to find and use global bootmeths first, since they have
the best idea of how the system should boot. We then use normal bootmeths
as a fallback.

Add the logic for this, putting global bootmeths at the end of the
ordering. We can then easily scan the global bootmeths first, then drop
them from the list for subsequent bootdev-centric scans.

This changes the ordering of global bootmeths, so update the
bootflow_system() accordingly.

Drop the comment from bootmeth_setup_iter_order() since this is an
exported function and it should be in the header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:17:11 -04:00
Simon Glass
bc06aa035d bootstd: Allow bootmeths to be marked as global
The current way of handling things like EFI bootmgr is a bit odd, since
that bootmeth handles selection of the bootdev itself. VBE needs to work
the same way, so we should support it properly.

Add a flag that indicates that the bootmeth is global, rather than being
invoked on each bootdev. Provide a helper to read a bootflow from the
bootmeth.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:17:10 -04:00
Simon Glass
988cacaeed bootstd: Provide a bootmeth method to obtain state info
Some bootmeths can provide information about what is available to boot.
For example, VBE simple provides access to the firmware state.

Add a new method for this, along with a sandbox test.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:14:24 -04:00
Simon Glass
10d16faa43 bootstd: Detect empty bootmeth ordering
If the ordering produces no entries, this is an error. Report it, so that
the caller doesn't try to continue with a NULL bootmeth.

This fixes a crash in the bootflow_iter test when running with the sandbox
'default' device tree, instead of the required 'test' one.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:14:24 -04:00
Simon Glass
a950d31abe bootstd: Add the bootmeth uclass and helpers
A bootmeth is a method of locating an operating system. For now, just
add the uclass itself. Drivers for particular bootmeths are added later.

If no bootmeths devices are included in the devicetree, create them
automatically. This avoids the need for boilerplate in the devicetree
files.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-25 10:00:04 -04:00