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From: "Nhi Pham" <nhi@os.amperecomputing.com>
To: devel@edk2.groups.io
CC: Nhi Pham <nhi@os.amperecomputing.com>,
Thang Nguyen <thang@os.amperecomputing.com>,
Chuong Tran <chuong@os.amperecomputing.com>,
Phong Vo <phong@os.amperecomputing.com>,
Leif Lindholm <leif@nuviainc.com>,
Michael D Kinney <michael.d.kinney@intel.com>,
Ard Biesheuvel <ardb+tianocore@kernel.org>,
Nate DeSimone <nathaniel.l.desimone@intel.com>
Subject: [edk2-platforms][PATCH v2 30/32] AmpereSiliconPkg: Implement PlatformBootManagerLib for LinuxBoot
Date: Wed, 26 May 2021 17:07:22 +0700
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The PlatformBootManagerLib library derived from
ArmPkg/Library/PlatformBootManagerLib.
This implementation registers only a common GUID for LinuxBoot Payload
("D834A5AD-459C-4AED-B0D0-8CBCB28838D7") as a active boot option. This
allows BDS to jump to the LinuxBoot Shell immediately without entering
the UiApp Setup Screen or UEFI Shell.
Cc: Thang Nguyen <thang@os.amperecomputing.com>
Cc: Chuong Tran <chuong@os.amperecomputing.com>
Cc: Phong Vo <phong@os.amperecomputing.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
---
Silicon/Ampere/AmpereSiliconPkg/Library/LinuxBootBootManagerLib/LinuxBootB=
ootManagerLib.inf | 54 ++++++
Silicon/Ampere/AmpereSiliconPkg/Library/LinuxBootBootManagerLib/LinuxBootB=
m.c | 173 ++++++++++++++++++++
2 files changed, 227 insertions(+)
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/LinuxBootBootManagerLi=
b/LinuxBootBootManagerLib.inf b/Silicon/Ampere/AmpereSiliconPkg/Library/Lin=
uxBootBootManagerLib/LinuxBootBootManagerLib.inf
new file mode 100644
index 000000000000..cb4ade210117
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/LinuxBootBootManagerLib/Linux=
BootBootManagerLib.inf
@@ -0,0 +1,54 @@
+## @file
+# Implementation for PlatformBootManagerLib library class interfaces.
+#
+# Copyright (C) 2015-2016, Red Hat, Inc.
+# Copyright (c) 2014, ARM Ltd. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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.<B=
R>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION =3D 0x00010005
+ BASE_NAME =3D LinuxBootBootManagerLib
+ FILE_GUID =3D 1FA91547-DB23-4F6A-8AF8-3B9782A7F917
+ MODULE_TYPE =3D DXE_DRIVER
+ VERSION_STRING =3D 1.0
+ LIBRARY_CLASS =3D PlatformBootManagerLib|DXE_DRIVER
+
+#
+# The following information is for reference only and not required by the =
build tools.
+#
+# VALID_ARCHITECTURES =3D ARM AARCH64
+#
+
+[Sources]
+ LinuxBootBm.c
+
+[Packages]
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+ ShellPkg/ShellPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ DebugLib
+ MemoryAllocationLib
+ PrintLib
+ UefiBootManagerLib
+ UefiBootServicesTableLib
+ UefiLib
+ UefiRuntimeServicesTableLib
+
+[Pcd]
+
+[Guids]
+ gEfiEndOfDxeEventGroupGuid
+ gUefiShellFileGuid
+
+[Protocols]
+ gEfiLoadedImageProtocolGuid
diff --git a/Silicon/Ampere/AmpereSiliconPkg/Library/LinuxBootBootManagerLi=
b/LinuxBootBm.c b/Silicon/Ampere/AmpereSiliconPkg/Library/LinuxBootBootMana=
gerLib/LinuxBootBm.c
new file mode 100644
index 000000000000..2d0f087477d6
--- /dev/null
+++ b/Silicon/Ampere/AmpereSiliconPkg/Library/LinuxBootBootManagerLib/Linux=
BootBm.c
@@ -0,0 +1,173 @@
+/** @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/UefiBootManagerLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Protocol/LoadedImage.h>
+#include <Protocol/PlatformBootManager.h>
+
+// This GUID must match the FILE_GUID in the LinuxBootPkg/LinuxBoot.inf fi=
le.
+// GUID: D834A5AD-459C-4AED-B0D0-8CBCB28838D7
+EFI_GUID mLinuxBootFileGuid =3D { 0xD834A5AD, 0x459C, 0x4AED, { 0xB0, 0xD0=
, 0x8C, 0xBC, 0xB2, 0x88, 0x38, 0xD7 } };
+
+STATIC
+VOID
+RegisterFvBootOption (
+ 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 =3D gBS->HandleProtocol (
+ gImageHandle,
+ &gEfiLoadedImageProtocolGuid,
+ (VOID **)&LoadedImage
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ EfiInitializeFwVolDevicepathNode (&FileNode, FileGuid);
+ DevicePath =3D DevicePathFromHandle (LoadedImage->DeviceHandle);
+ ASSERT (DevicePath !=3D NULL);
+ DevicePath =3D AppendDevicePathNode (
+ DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&FileNode
+ );
+ ASSERT (DevicePath !=3D NULL);
+
+ Status =3D EfiBootManagerInitializeLoadOption (
+ &NewOption,
+ LoadOptionNumberUnassigned,
+ LoadOptionTypeBoot,
+ Attributes,
+ Description,
+ DevicePath,
+ NULL,
+ 0
+ );
+ ASSERT_EFI_ERROR (Status);
+ FreePool (DevicePath);
+
+ BootOptions =3D EfiBootManagerGetLoadOptions (
+ &BootOptionCount,
+ LoadOptionTypeBoot
+ );
+
+ OptionIndex =3D EfiBootManagerFindLoadOption (
+ &NewOption,
+ BootOptions,
+ BootOptionCount
+ );
+
+ if (OptionIndex =3D=3D -1) {
+ Status =3D 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
+ )
+{
+ //
+ // Register LinuxBoot
+ //
+ RegisterFvBootOption (
+ &mLinuxBootFileGuid,
+ L"LinuxBoot",
+ LOAD_OPTION_ACTIVE
+ );
+}
+
+/**
+ 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;
+}
--=20
2.17.1