u-boot.git/include/efi_api.h, branch v2020.04

efi_loader: definition of GetNextVariableName()

2020-03-22T17:38:02+00:00

'vendor' is both an input and an output parameter. So it cannot be
constant.

Fixes: 0bda81bfdc5c ("efi_loader: use const efi_guid_t * for variable services")
Signed-off-by: Heinrich Schuchardt

efi_loader: correct a definition of struct efi_capsule_header

2020-03-17T07:29:52+00:00

See UEFI specification, section 8.5.3.
In addition, the structure, efi_capsule_header, should be "packed"
as it is a serialized binary format in a capsule file.

Signed-off-by: AKASHI Takahiro

efi_loader: define System Resource Table macros

2020-03-17T07:29:52+00:00

Some of those values will be used in an implementation of UEFI firmware
management protocol as part of my capsule update patch.

Signed-off-by: AKASHI Takahiro

efi_loader: define OsIndicationsSupported flags

2020-03-17T07:29:52+00:00

These flags are expected to be set in OsIndicationsSupported variable
if corresponding features are supported. See UEFI specification,
section 8.5.4.

In particular, capsule-related flags will be used in my capsule
update patch.

Signed-off-by: AKASHI Takahiro 

Fix misspelled EFI_OS_INDICATIONS_BOOT_TO_FW_UI.
Reviewed-by: Heinrich Schuchardt 

Signed-off-by: Heinrich Schuchardt

efi_loader: Implement FileLoad2 for initramfs loading

2020-02-28T18:37:14+00:00

Following kernel's proposal for an arch-agnostic initrd loading
mechanism [1] let's implement the U-boot counterpart.
This new approach has a number of advantages compared to what we did up
to now. The file is loaded into memory only when requested limiting the
area of TOCTOU attacks. Users will be allowed to place the initramfs
file on any u-boot accessible partition instead of just the ESP one.
Finally this is an attempt of a generic interface across architectures
in the linux kernel so it makes sense to support that.

The file location is intentionally only supported as a config option
argument(CONFIG_EFI_INITRD_FILESPEC), in an effort to enhance security.
Although U-boot is not responsible for verifying the integrity of the
initramfs, we can enhance the offered security by only accepting a
built-in option, which will be naturally verified by UEFI Secure Boot.
This can easily change in the future if needed and configure that via ENV
or UEFI variable.

[1] https://lore.kernel.org/linux-efi/20200207202637.GA3464906@rani.riverdale.lan/T/#m4a25eb33112fab7a22faa0fd65d4d663209af32f

Signed-off-by: Ilias Apalodimas 
Signed-off-by: Heinrich Schuchardt

efi_loader: implement EFI_RT_PROPERTIES_TABLE

2020-02-26T18:32:09+00:00

UEFI spec 2.8 errata A replaces the RuntimeServicesSupported variable
defined in UEFI spec 2.8 by the configuration table
EFI_RT_PROPERTIES_TABLE. So let's follow suit.

Cc: Ard Biesheuvel 
Signed-off-by: Heinrich Schuchardt 
Tested-by: Ard Biesheuvel

efi: device path for nvme

2019-10-06T14:02:37+00:00

This allows our EFI API to create a device path node for NVMe
devices.  It adds the necessary device path struct, uses the
nvme namespace accessor to retrieve the id and eui64, and also
provides support for the device path text protocol.

Signed-off-by: Patrick Wildt 
Tested-by: Heinrich Schuchardt 
Reviewed-by: Heinrich Schuchardt

efi_loader: volume name in EFI_FILE_PROTOCOL.GetInfo()

2019-09-09T13:21:09+00:00

We cannot determine the volume name in U-Boot. Instead of providing a dummy
volume name in case of EFI_FILE_SYSTEM_INFO and EFI_UNSUPPORTED in case of
EFI_FILE_SYSTEM_VOLUME_LABEL consistently return an empty string.

Signed-off-by: Heinrich Schuchardt

efi_loader: EFI_FILE_PROTOCOL rev 2 stub

2019-09-09T13:21:09+00:00

The UEFI specification requires to implement version 2 of the
EFI_FILE_PROTOCOL. Provide the missing functions as stubs.

Signed-off-by: Heinrich Schuchardt

efi_loader: correctly render CD-ROM device path nodes

2019-09-05T21:18:51+00:00

Correct the name of the partition size component in struct
efi_device_path_cdrom_path.

Render entry, start, and size when converting a CD-ROM device path node to
text.

Signed-off-by: Heinrich Schuchardt