diff options
Diffstat (limited to 'ArmPkg/Library/LinuxBootBootManagerLib/LinuxBootBm.c')
| -rw-r--r-- | ArmPkg/Library/LinuxBootBootManagerLib/LinuxBootBm.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/ArmPkg/Library/LinuxBootBootManagerLib/LinuxBootBm.c b/ArmPkg/Library/LinuxBootBootManagerLib/LinuxBootBm.c new file mode 100644 index 0000000000..3295c5a070 --- /dev/null +++ b/ArmPkg/Library/LinuxBootBootManagerLib/LinuxBootBm.c @@ -0,0 +1,186 @@ +/** @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", __FUNCTION__));
+ }
+}
+
+/**
+ 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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