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/** @file
Implementation for PlatformBootManagerLib library class interfaces.
Copyright (C) 2015-2016, Red Hat, Inc.
Copyright (c) 2014 - 2019, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
Copyright (c) 2020 - 2021, Ampere Computing LLC. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Uefi.h>
#include <Guid/EventGroup.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Library/UefiBootManagerLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Protocol/LoadedImage.h>
#include <Protocol/PlatformBootManager.h>
/**
Register a boot option using a file GUID in the FV.
@param FileGuid The file GUID name in the FV.
@param Description The description of the boot option.
@param Attributes The attributes of the boot option.
**/
STATIC
VOID
PlatformRegisterFvBootOption (
CONST EFI_GUID *FileGuid,
CHAR16 *Description,
UINT32 Attributes
)
{
EFI_STATUS Status;
INTN OptionIndex;
EFI_BOOT_MANAGER_LOAD_OPTION NewOption;
EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;
UINTN BootOptionCount;
MEDIA_FW_VOL_FILEPATH_DEVICE_PATH FileNode;
EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
Status = gBS->HandleProtocol (
gImageHandle,
&gEfiLoadedImageProtocolGuid,
(VOID **)&LoadedImage
);
ASSERT_EFI_ERROR (Status);
EfiInitializeFwVolDevicepathNode (&FileNode, FileGuid);
DevicePath = DevicePathFromHandle (LoadedImage->DeviceHandle);
ASSERT (DevicePath != NULL);
DevicePath = AppendDevicePathNode (
DevicePath,
(EFI_DEVICE_PATH_PROTOCOL *)&FileNode
);
ASSERT (DevicePath != NULL);
Status = EfiBootManagerInitializeLoadOption (
&NewOption,
LoadOptionNumberUnassigned,
LoadOptionTypeBoot,
Attributes,
Description,
DevicePath,
NULL,
0
);
ASSERT_EFI_ERROR (Status);
FreePool (DevicePath);
BootOptions = EfiBootManagerGetLoadOptions (
&BootOptionCount,
LoadOptionTypeBoot
);
OptionIndex = EfiBootManagerFindLoadOption (
&NewOption,
BootOptions,
BootOptionCount
);
if (OptionIndex == -1) {
Status = EfiBootManagerAddLoadOptionVariable (&NewOption, MAX_UINTN);
ASSERT_EFI_ERROR (Status);
}
EfiBootManagerFreeLoadOption (&NewOption);
EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);
}
/**
Do the platform specific action before the console is connected.
Such as:
Update console variable;
Register new Driver#### or Boot####;
Signal ReadyToLock event.
**/
VOID
EFIAPI
PlatformBootManagerBeforeConsole (
VOID
)
{
//
// Signal EndOfDxe PI Event
//
EfiEventGroupSignal (&gEfiEndOfDxeEventGroupGuid);
}
/**
Do the platform specific action after the console is connected.
Such as:
Dynamically switch output mode;
Signal console ready platform customized event;
Run diagnostics like memory testing;
Connect certain devices;
Dispatch additional option roms.
**/
VOID
EFIAPI
PlatformBootManagerAfterConsole (
VOID
)
{
EFI_GUID LinuxBootFileGuid;
CopyGuid (&LinuxBootFileGuid, PcdGetPtr (PcdLinuxBootFileGuid));
if (!CompareGuid (&LinuxBootFileGuid, &gZeroGuid)) {
//
// Register LinuxBoot
//
PlatformRegisterFvBootOption (
&LinuxBootFileGuid,
L"LinuxBoot",
LOAD_OPTION_ACTIVE
);
} else {
DEBUG ((DEBUG_ERROR, "%a: PcdLinuxBootFileGuid was not set!\n", __func__));
}
}
/**
This function is called each second during the boot manager waits the
timeout.
@param TimeoutRemain The remaining timeout.
**/
VOID
EFIAPI
PlatformBootManagerWaitCallback (
UINT16 TimeoutRemain
)
{
return;
}
/**
The function is called when no boot option could be launched,
including platform recovery options and options pointing to applications
built into firmware volumes.
If this function returns, BDS attempts to enter an infinite loop.
**/
VOID
EFIAPI
PlatformBootManagerUnableToBoot (
VOID
)
{
return;
}
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