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

efi_loader: use LOGC_EFI consistently

2025-01-26T10:06:56+00:00

The log category should be LOGC_EFI all over the EFI sub-system.

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

efi_loader: Remove

2023-12-21T13:54:37+00:00

We largely do not need  in these files, so drop it. The only
exception here is that efi_freestanding.c needs  and had
been getting that via .

Reviewed-by: Simon Glass 
Signed-off-by: Tom Rini

efi_loader: update the timing of enabling and disabling EFI watchdog

2022-02-26T06:37:01+00:00

UEFI specification requires that 5 minutes watchdog timer is
armed before the firmware's boot manager invokes an EFI boot option.
This watchdog timer is updated as follows, according to the
UEFI specification.

 1) The EFI Image may reset or disable the watchdog timer as needed.
 2) If control is returned to the firmware's boot manager,
    the watchdog timer must be disabled.
 3) On successful completion of EFI_BOOT_SERVICES.ExitBootServices()
    the watchdog timer is disabled.

1) is up to the EFI image, and 3) is already implemented in U-Boot.
This patch implements 2), the watchdog is disabled when control is
returned to U-Boot.

In addition, current implementation arms the EFI watchdog at only
the first "bootefi" invocation. The EFI watchdog must be armed
in every EFI boot option invocation.

Signed-off-by: Masahisa Kojima 
Reviewed-by: Heinrich Schuchardt

efi_loader: simplify efi_watchdog_timer_notify()

2021-09-11T09:02:02+00:00

We can call do_reset() directly without invoking the UEFI API.
This decreases the code size.

Signed-off-by: Heinrich Schuchardt

efi_loader: function descriptions efi_watchdog.c

2020-04-16T06:10:02+00:00

Correct function descriptions in efi_watchdog.c.
Add the descriptions to the generated HTML documentation.

Signed-off-by: Heinrich Schuchardt

SPDX: Convert a few files that were missed before

2018-05-11T00:38:35+00:00

As part of the main conversion a few files were missed.  These files had
additional whitespace after the '*' and before the SPDX tag and my
previous regex was too strict.  This time I did a grep for all SPDX tags
and then filtered out anything that matched the correct styles.

Fixes: 83d290c56fab ("SPDX: Convert all of our single license tags to Linux Kernel style")
Reported-by: Heinrich Schuchardt 
Signed-off-by: Tom Rini

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: consistently return efi_status_t efi_watchdog_register

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

efi_watchdog_register() should always return a status code and not
a boolean value.

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

efi_loader: implement SetWatchdogTimer

2017-12-01T12:22:55+00:00

The watchdog is initialized with a 5 minute timeout period.
It can be reset by SetWatchdogTimer.
It is stopped by ExitBoottimeServices.

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