RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429
This library is needed by EmbeddedPkg/PrePiHobLib to set / get the
Hob list pointer.
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Brijesh Singh <brijesh.si...@amd.com>
Cc: Erdem Aktas <erdemak...@google.com>
Cc: James Bottomley <j...@linux.ibm.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Tom Lendacky <thomas.lenda...@amd.com>
Cc: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Min Xu <min.m...@intel.com>
---
.../PrePiHobListPointer.c | 45 +++++++++++++++++++
.../PrePiHobListPointerLibTdx.inf | 25 +++++++++++
2 files changed, 70 insertions(+)
create mode 100644
OvmfPkg/IntelTdx/PrePiHobListPointerLibTdx/PrePiHobListPointer.c
create mode 100644
OvmfPkg/IntelTdx/PrePiHobListPointerLibTdx/PrePiHobListPointerLibTdx.inf
diff --git a/OvmfPkg/IntelTdx/PrePiHobListPointerLibTdx/PrePiHobListPointer.c
b/OvmfPkg/IntelTdx/PrePiHobListPointerLibTdx/PrePiHobListPointer.c
new file mode 100644
index 000000000000..a64ca5f04fc5
--- /dev/null
+++ b/OvmfPkg/IntelTdx/PrePiHobListPointerLibTdx/PrePiHobListPointer.c
@@ -0,0 +1,45 @@
+/** @file
+*
+* Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+* SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#include <PiPei.h>
+#include <Library/PrePiHobListPointerLib.h>
+#include <Library/DebugLib.h>
+
+static VOID *mHobList = NULL;
+
+/**
+ Returns the pointer to the HOB list.
+
+ This function returns the pointer to first HOB in the list.
+
+ @return The pointer to the HOB list.
+
+**/
+VOID *
+EFIAPI
+PrePeiGetHobList (
+ VOID
+ )
+{
+ return mHobList;
+}
+
+/**
+ Updates the pointer to the HOB list.
+
+ @param HobList Hob list pointer to store
+
+**/
+EFI_STATUS
+EFIAPI
+PrePeiSetHobList (
+ IN VOID *HobList
+ )
+{
+ mHobList = HobList;
+ return EFI_SUCCESS;
+}
diff --git
a/OvmfPkg/IntelTdx/PrePiHobListPointerLibTdx/PrePiHobListPointerLibTdx.inf
b/OvmfPkg/IntelTdx/PrePiHobListPointerLibTdx/PrePiHobListPointerLibTdx.inf
new file mode 100644
index 000000000000..4d50d28a1614
--- /dev/null
+++ b/OvmfPkg/IntelTdx/PrePiHobListPointerLibTdx/PrePiHobListPointerLibTdx.inf
@@ -0,0 +1,25 @@
+#/** @file
+#
+# Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PrePiHobListPointerLibTdx
+ FILE_GUID = 28297DB9-4CE7-4679-80E6-0270B215A2F2
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PrePiHobListPointerLib
+
+[Sources]
+ PrePiHobListPointer.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+
+[LibraryClasses]
+ PcdLib
--
2.29.2.windows.2
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