u-boot.git/lib/efi_loader/efi_boottime.c, branch v2018.05

efi_loader: correcty determine total device path length

2018-04-23T19:34:28+00:00

Device paths may consist of multiple instances. Up to now we have only
considered the size of the first instance. For the services of the
EFI_DEVICE_PATH_UTILITIES_PROTOCOL in most cases the total length of the
device path is relevant.

So let's rename efi_dp_size() to efi_dp_instance_size() and create a new
function efi_dp_size() that calculates the total device path length.

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

efi_loader: use correct types in EFI_FILE_PROTOCOL

2018-04-04T09:39:27+00:00

In the EFI_FILE_PROTOCOL buffer sizes and positions are passed as UINTN and
not as u64.

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

efi_loader: use efi_uintn_t for LoadImage

2018-04-04T09:36:08+00:00

We generally use efi_uintn_t where the UEFI spec uses UINTN.

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

efi_loader: RestoreTPL should execute queued events

2018-04-04T09:04:00+00:00

When the TPL is lowered queued events may become eligible for execution.

iPXE uses the following pattern to request event execution:

	bs->RestoreTPL ( TPL_APPLICATION );
	bs->RaiseTPL ( TPL_CALLBACK );

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

efi_loader: implement event groups

2018-04-04T09:00:07+00:00

If an event of a group event is signaled all other events of the same
group are signaled too.

Function efi_signal_event is renamed to efi_queue_event.
A new function efi_signal_event is introduced that checks if an event
belongs to a group and than signals all events of the group.
Event group notifciation is implemented for ExitBootServices,
InstallConfigurationTable, and ResetSystem.

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

efi_loader: define GUIDS for event groups

2018-04-04T09:00:06+00:00

Event groups are used to signal multiple events at the same time.
They are identified by GUIDs. This patch provided the predefined
GUIDs of UEFI specification 2.7.

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

efi_loader: manage events in a linked list

2018-04-04T09:00:06+00:00

Lift the limit on the number of events by using a linked list.

This also allows to have events with type == 0.

This patch is based on Rob's patch
efi_loader: fix events
https://lists.denx.de/pipermail/u-boot/2017-October/309348.html

Suggested-by: Rob Clark 
Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf

efi_loader: fix formatting errors

2018-04-04T09:00:06+00:00

Fix formatting errors in efi_boottime.c indicated by
scripts/checkpatch.py.

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

efi_loader: clear signaled state in CheckEvent

2018-04-04T09:00:06+00:00

CheckEvent must clear the signaled state.

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

efi_loader: check parameter in InstallConfigurationTable

2018-04-04T09:00:06+00:00

Check that parameter guid is not NULL. This avoids a possible NULL
pointer exception.

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