u-boot.git/lib/efi_loader/efi_disk.c, branch v2018.01

efi_loader: Setup logical_partition media information

2017-12-19T12:57:02+00:00

When adding a partition, set the logical_partition member in the media
structure as mandated by the UEFI spec.

Signed-off-by: Emmanuel Vadot 
Reviewed-by: Heinrich Schuchardt

efi_loader: Fix partition offsets

2017-12-01T21:30:47+00:00

Commit 884bcf6f65 (efi_loader: use proper device-paths for partitions) tried
to introduce the el torito scheme to all partition table types: Spawn
individual disk objects for each partition on a disk.

Unfortunately, that code ended up creating partitions with offset=0 which meant
that anyone accessing these objects gets data from the raw block device instead
of the partition.

Furthermore, all the el torito logic to spawn devices for partitions was
duplicated. So let's merge the two code paths and give partition disk objects
good offsets to work from, so that payloads can actually make use of them.

Fixes: 884bcf6f65 (efi_loader: use proper device-paths for partitions)
Reported-by: Yousaf Kaukab 
Signed-off-by: Alexander Graf

efi_loader: helper function to add EFI object to list

2017-12-01T12:41:01+00:00

To avoid duplicate coding provide a helper function that
initializes an EFI object and adds it to the EFI object
list.

efi_exit() is the only place where we dereference a handle
to obtain a protocol interface. Add a comment to the function.

Suggested-by: Alexander Graf 
Reviewed-by: Simon Glass 
Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf

efi_loader: manage protocols in a linked list

2017-12-01T12:37:49+00:00

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

efi_loader: efi_disk: use efi_add_protocol

2017-12-01T12:36:17+00:00

Use efi_add_protocol to install protocols.

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

efi_loader: efi_disk: check return value of calloc

2017-12-01T12:22:56+00:00

Calloc may return NULL. We should check the return value.

Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf

efi_loader: don't increment part twice per loop

2017-10-10T16:14:05+00:00

Correct a mistake in the part number handling of commit
16a73b249d138fedeb188710533902ed7aac1ddc and only increment part once
per loop.

Signed-off-by: Jonathan Gray 
Tested-by: Peter Robinson 
Signed-off-by: Alexander Graf

efi_loader: search all possible disk partitions

2017-10-10T07:56:04+00:00

When searching for partitions don't stop if a partition is not present
for a given partition number as there may be valid partitions after.

Search for up to MAX_SEARCH_PARTITIONS matching the other callers of
part_get_info().

This allows OpenBSD to boot via the efi_loader on rpi_3 again after
changes made after U-Boot 2017.09.  With MBR partitioning OpenBSD will
by default use the fourth partition for the 0xA6 (OpenBSD) partition.

Signed-off-by: Jonathan Gray 
Signed-off-by: Alexander Graf

efi_loader: Fix disk dp's for pre-DM/legacy devices

2017-10-09T05:00:38+00:00

This fixes an issue with OpenBSD's bootloader, and I think should also
fix a similar issue with grub2 on legacy devices.  In the legacy case
we were creating disk objects for the partitions, but not also the
parent device.

Reported-by: Jonathan Gray 
Signed-off-by: Rob Clark 
Signed-off-by: Alexander Graf

efi_loader: add file/filesys support

2017-09-20T08:43:54+00:00

fallback.efi (and probably other things) use UEFI's simple-file-system
protocol and file support to search for OS's to boot.

Signed-off-by: Rob Clark 
[agraf: whitespace fixes, unsigned fixes]
Signed-off-by: Alexander Graf