u-boot.git/include/bootflow.h, branch v2024.10

bootstd: Add bootflow_iter_check_mmc() helper

2024-07-18T19:51:30+00:00

Some bootflows might be able to only boot from MMC devices.

Add a helper function these bootflows can use.

Reviewed-by: Igor Opaniuk 
Reviewed-by: Julien Masson 
Reviewed-by: Guillaume La Roque 
Tested-by: Guillaume La Roque 
Signed-off-by: Mattijs Korpershoek 
Reviewed-by: Simon Glass

boot: bootflow_menu: fix crash for EFI BOOTMGR global bootmeth

2024-06-20T17:41:43+00:00

The global bootmeths don't set the dev in bootflow struct which means
the dev_get_parent(bflow->dev) triggers a NULL-pointer dereference and
crash U-Boot.

So before trying to handle a bootflow, check that the associated
bootmeth isn't global, otherwise skip it.

Suggested-by: Simon Glass 
Signed-off-by: Quentin Schulz 
Reviewed-by: Simon Glass

bootstd: support scanning a single partition

2024-03-04T15:25:47+00:00

The "bootflow" command currently doesn't support scanning a single
partition. This is inconvenient in setups with multiple bootable
partitions within a single disk, but only one is desired.

Support scanning a single disk partition. Specifically, support the
syntax:
	bootflow scan mmc1:4
which scans only mmc device 1, partition 4.

Signed-off-by: Nam Cao

bootflow: bootmeth_efi: Handle fdt not available.

2023-12-09T18:16:08+00:00

While booting with efi, if fdt isn't available externally,
just use the built-in one.

Reviewed-by: Simon Glass 

Signed-off-by: Shantur Rathore

bootstd: Avoid freeing a non-allocated buffer

2023-11-17T16:58:26+00:00

EFI applications can be very large and thus used to cause boot failures
when malloc() space was exhausted.

A recent changed fixed this by using the kernel_addr_r environment var
as the address of the buffer. However, it still frees the buffer when
the bootflow is discarded.

Fix this by introducing a flag to indicate whether the buffer was
allocated, or not.

Note that kernel_addr_r is not the last word here. It might be better
to use lmb to place images. But there is a lot of refactoring to do
before we can remove the environment variables. The distro scripts rely
on them so it is safe for bootstd to do so too.

Fixes: 6a8c2f9781c bootstd: Avoid allocating memory for the EFI file

Signed-off-by: Simon Glass 
Reported by: Simon Glass 
Reported by: Shantur Rathore 
Reviewed-by: Heinrich Schuchardt 
Tested-by: Shantur Rathore

bootstd: Add a command to read all files for a bootflow

2023-08-11T13:33:38+00:00

Some bootflows (such as EFI and ChromiumOS) delay reading the kernel until
it is needed to boot. This saves time when scanning and avoids needing to
allocate memory for something that may never be used.

To permit reading of these files, add a new 'bootflow read' command.

Signed-off-by: Simon Glass

bootstd: Allow display of the x86 setup information

2023-08-11T00:34:54+00:00

Provide an option to dump this information if available.

Move the funciion prototype to the common x86 header. Allow the command
line to be left out since 'bootflow info' show this itself and it is
not in the correct place in memory until the kernel is actually booted.

Fix a badly aligned heading while we are here.

Signed-off-by: Simon Glass

bootstd: Add private bootmeth data to the bootflow

2023-08-11T00:34:54+00:00

Some bootmeths need to store their own information related to the
bootflow, in addition to the generic information in struct bootflow.
Add a pointer for this.

Signed-off-by: Simon Glass

bootstd: Support automatically setting Linux parameters

2023-07-17T05:38:35+00:00

Some Linux parameters can be set automatically by U-Boot, if it knows the
device being used. For example, since U-Boot knows the serial console
being used, it can add parameters for earlycon and console.

Add support for this.

Note that this is an experimental feature and we will see how useful it
turns out to be. It is very handy for ChromeOS, since otherwise it is very
difficult to manually determine the UART address or port number,
particularly in a script.

Provide an example of how this is used with ChromeOS.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

bootstd: Add support for updating elements of the cmdline

2023-07-17T05:38:35+00:00

Add a bootflow command to update the command line more easily. This allows
changing a particular parameter rather than editing a very long strings.
It is also easier to handle with scripting.

The new 'bootflow cmdline' command allows getting and setting single
parameters.

Fix up the example output while we are here, since there are a few new
items.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng