u-boot.git/lib/efi_loader/efi_root_node.c, branch v2021.04

efi_loader: remove EFI_UNICODE_COLLATION_PROTOCOL

2021-01-20T07:17:17+00:00

In EFI 1.10 a version of the Unicode collation protocol using ISO 639-2
language codes existed. This protocol is not part of the UEFI specification
any longer. It was however required to run the UEFI Self Certification Test
(SCT) II, version 2.6, 2017. So we implemented it for the sole purpose of
running the SCT.

As the SCT does not need the protocol anymore it is time for removal.

Signed-off-by: Heinrich Schuchardt

efi_loader: EFI_DEVICE_PATH_UTILITIES_PROTOCOL configurable

2021-01-20T07:17:17+00:00

Allow the EFI_DEVICE_PATH_UTILITIES_PROTOCOL to be disabled via
configuration.

On systems that are very tight on U-Boot image size we may want to disable
the protocol. As it is required to run the UEFI Shell enable it by default.

Signed-off-by: Heinrich Schuchardt

efi_loader: make EFI_DT_FIXUP_PROTOCOL configurable

2021-01-20T07:17:17+00:00

Allow EFI_DT_FIXUP_PROTOCOL to be disabled via configuration.

Signed-off-by: Heinrich Schuchardt

efi_loader: implement EFI_DT_FIXUP_PROTOCOL

2021-01-13T01:38:01+00:00

A boot manager like GRUB can use the protocol to

* apply U-Boot's fix-ups to the a device-tree
* let U-Boot make memory reservations according to the device-tree
* install the device-tree as a configuration table

Signed-off-by: Heinrich Schuchardt

efi_loader: remove EFI_HII_CONFIG_ROUTING_PROTOCOL

2020-12-10T08:15:32+00:00

Our implementation of the EFI_HII_CONFIG_ROUTING_PROTOCOL is a mere stub,
where all services return an error code. The protocol is neither needed for
the EFI shell nor for the UEFI SCT. To reduce the code size remove it from
the U-Boot binary.

Signed-off-by: Heinrich Schuchardt

efi_loader: installation of EFI_RNG_PROTOCOL

2020-09-27T14:10:45+00:00

Having an EFI_RNG_PROTOCOL without a backing RNG device leads to failure
to boot Linux 5.8.

Only install the EFI_RNG_PROTOCOL if we have a RNG device.

Reported-by: Scott K Logan 
Cc: Neil Armstrong 
Cc: Ard Biesheuvel 
Signed-off-by: Heinrich Schuchardt

efi_rng_protocol: Install the efi_rng_protocol on the root node

2020-01-07T17:08:22+00:00

Install the EFI_RNG_PROTOCOL implementation for it's subsequent use by
the kernel for features like kaslr.

Signed-off-by: Sughosh Ganu 
Reviewed-by: Heinrich Schuchardt

efi_loader: implement deprecated Unicode collation protocol

2019-05-19T06:10:10+00:00

In EFI 1.10 a version of the Unicode collation protocol using ISO 639-2
language codes existed. This protocol is not part of the UEFI specification
any longer. Unfortunately it is required to run the UEFI Self Certification
Test (SCT) II, version 2.6, 2017. So we implement it here for the sole
purpose of running the SCT. It can be removed once a compliant SCT is
available.

The configuration option defaults to no.

Signed-off-by: Rob Clark 

Most of Rob's original patch is already merged. Only the deprecated
protocol is missing. Rebase it and make it configurable.

Signed-off-by: Heinrich Schuchardt

efi_loader: rename Unicode collation protocol 2 variables

2019-05-19T06:10:10+00:00

Rename variables to make it clear they refer to the Unicode collation
protocol identified by the EFI_UNICODE_PROTOCOL2_GUID.

Signed-off-by: Heinrich Schuchardt

efi_loader: make device path to text protocol customizable

2019-05-12T18:54:22+00:00

The device path to text protocol is not needed for EBBR compliance. So
let's make it a customizable option.

Signed-off-by: Heinrich Schuchardt