u-boot.git/lib/efi_loader/efi_bootbin.c, branch master

efi_loader: Separate device path into its own header

2025-05-25T09:27:18+00:00

These functions are useful for the EFI app. As a first step towards
making these available outside lib/efi_loader, create a separate header
file and include it where needed. Add proper comments to the functions,
since many are missing at present.

Signed-off-by: Simon Glass 
Reviewed-by: Heinrich Schuchardt

efi_loader: fix typo initd_sz to initrd_sz

2025-05-01T07:19:24+00:00

Signed-off-by: Adriano Cordova 
Reviewed-by: Ilias Apalodimas 
Reviewed-by: Heinrich Schuchardt

efi_loader: bootbin: do not load an initrd if none is provided

2025-05-01T07:19:24+00:00

Do not try to create an initrd device path nor try to register
an initrd with the EFI_LOAD_FILE2_PROTOCOL if none is provided.

Handle initrd installation in efi_binary_run_dp with
efi_install_initrd, imitating what is done for the fdt.

Fixes: 36835a9105c ("efi_loader: binary_run: register an initrd")
Reported-by: Weizhao Ouyang 
Signed-off-by: Adriano Cordova 
Tested-by: Weizhao Ouyang 
Reviewed-by: Ilias Apalodimas 
Reviewed-by: Heinrich Schuchardt

efi: Fix efiboot for payloads loaded from memory

2025-04-11T11:20:38+00:00

Calling bootefi on an address that was loaded from memory (e.g., cramfs
or SPI flash via "sf read", etc.), currently results in the EFI binary
not being able to access the EFI image device path.

For example, iPXE would fail with an error "EFI could not get loaded
image's device path: Error 0x7f39e082 (https://ipxe.org/7f39e082)".

This is due to an incomplete special-case in efi_binary_run, where a new
device path was created but not used in all required places.

Fix the in-memory special case, set the "bootefi_device_path" to the
generated "file_path".

iPXE will now boot, and report the device path as
"/MemoryMapped(0x0,0xSTART,0xLEN)"

Signed-off-by: Christian Kohlschütter 
Reviewed-by: Heinrich Schuchardt

efi_loader: binary_run: register an initrd

2025-04-11T11:20:38+00:00

Add support to install an initrd when running an EFI binary
with efi_binary_run

Signed-off-by: Adriano Cordova 
Acked-by: Ilias Apalodimas

efi_loader: efi_net: Add device path cache

2025-03-10T06:02:25+00:00

In preparation to support mutiple efi net udevices. Add a device path
cache to support device paths from multiple ethernet udevices.
The device paths can be added to the cache before EFI gets initialized and
the protocols get installed.

Signed-off-by: Adriano Cordova

bootmeth_efi: Support PXE booting

2025-01-26T10:06:57+00:00

Finish off the implementation so it is possible to boot an EFI app over
a network.

Signed-off-by: Simon Glass

efi_loader: Pass in the required parameters from EFI bootmeth

2025-01-26T10:06:57+00:00

Rather than setting up the global variables and then making the call,
pass them into function directly. This cleans up the code and makes it
all a bit easier to understand.

Signed-off-by: Simon Glass

efi_loader: Move the fallback code from efi_run_image()

2025-01-26T10:06:57+00:00

This code is only needed if an invalid image/device path is passed in.
Move the code out to a caller where this can be dealt with. The normal
flow will provide these parameters.

Signed-off-by: Simon Glass

efi_loader: Add a version of efi_binary_run() with more parameters

2025-01-26T10:06:57+00:00

This uses a few global variables at present. With the bootflow we have
the required parameters, so add a function which accepts these. Update
the existing function to call the new one with the globals.

Signed-off-by: Simon Glass 
Reviewed-by: Ilias Apalodimas