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| author | Zhiguang Liu <zhiguang.liu@intel.com> | 2021-05-07 13:34:20 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-06-24 09:16:22 +0000 |
| commit | 82f727c4af3289e7765b36e9c55c57cc61de4065 (patch) | |
| tree | 2c89c48a1d49b933bb34a338ef55de8d4465763c /UefiPayloadPkg/Library/DxeHobListLibNull | |
| parent | 12e34cd2f7900578ee83cb01b8f1696a7bb7511b (diff) | |
| download | edk2-82f727c4af3289e7765b36e9c55c57cc61de4065.tar.gz edk2-82f727c4af3289e7765b36e9c55c57cc61de4065.tar.bz2 edk2-82f727c4af3289e7765b36e9c55c57cc61de4065.zip | |
UefiPayloadPkg: Add HobLib for UniversalPayload
For payload entry, use PayloadEntryHobLib as HobLib and payload entry
should initialize hob base.
For DxeCore, use new added DxeHobLib as HobLib, and DxeCore will
initialize hob base.
For Dxe Driver, use new added DxeHobLib as HobLib, and use DxeHobListLib
to initialize hob base.
Adding a new library DxeHobLib + DxeHobListLib instead of using the
DxeHobLib.inf in MdePkg is because the constructor needed be separated
from DxeHobLib.
If not, when building UefiPayloadPkg, the dependency chain is as below:
DebugLib -> SerialPortLib -> PlatformHookLib -> HobLib -> DebugLib
Each library has a constructor, and this becomes a constructor circle.
To break the circle, separate the constructor from the HobLib as a new
DxeHobListLib, which won't depend on DebugLib.
Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Guo Dong <guo.dong@intel.com>
Cc: Benjamin You <benjamin.you@intel.com>
Reviewed-by: Guo Dong <guo.dong@intel.com>
Signed-off-by: Ray Ni <ray.ni@intel.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
Diffstat (limited to 'UefiPayloadPkg/Library/DxeHobListLibNull')
| -rw-r--r-- | UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.c | 20 | ||||
| -rw-r--r-- | UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.inf | 28 |
2 files changed, 48 insertions, 0 deletions
diff --git a/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.c b/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.c new file mode 100644 index 0000000000..92d3e17ef0 --- /dev/null +++ b/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.c @@ -0,0 +1,20 @@ +/** @file
+ This library retrieve the EFI_BOOT_SERVICES pointer from EFI system table in
+ library's constructor.
+
+ Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+#include <Uefi.h>
+
+EFI_STATUS
+EFIAPI
+DxeHobListLibNullConstructor (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
diff --git a/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.inf b/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.inf new file mode 100644 index 0000000000..f17e5ebdbd --- /dev/null +++ b/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.inf @@ -0,0 +1,28 @@ +## @file
+# UEFI Boot Services Table Library implementation.
+#
+# Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = DxeHobListLibNull
+ MODULE_TYPE = BASE
+ FILE_GUID = 060876c2-0e4e-4c63-8996-6af3710cfa64
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = DxeHobListLib
+ CONSTRUCTOR = DxeHobListLibNullConstructor
+
+#
+# VALID_ARCHITECTURES = IA32 X64 EBC
+#
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[Sources]
+ DxeHobListLibNull.c
|