2 files changed, 103 insertions, 0 deletions
diff --git a/roms/edk2/EmulatorPkg/Library/ThunkPpiList/ThunkPpiList.c b/roms/edk2/EmulatorPkg/Library/ThunkPpiList/ThunkPpiList.c
new file mode 100644
index 000000000..59ed6cca2
--- /dev/null
+++ b/roms/edk2/EmulatorPkg/Library/ThunkPpiList/ThunkPpiList.c
@@ -0,0 +1,70 @@
+/** @file
+  Emulator Thunk to abstract OS services from pure EFI code
+
+  Copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
+  Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiPei.h>
+#include <Library/BaseLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+
+UINTN                   gThunkPpiListSize = 0;
+EFI_PEI_PPI_DESCRIPTOR  *gThunkPpiList = NULL;
+
+
+
+EFI_PEI_PPI_DESCRIPTOR *
+GetThunkPpiList (
+  VOID
+  )
+{
+  UINTN Index;
+
+  if (gThunkPpiList == NULL) {
+    return NULL;
+  }
+
+  Index = (gThunkPpiListSize/sizeof (EFI_PEI_PPI_DESCRIPTOR)) - 1;
+  gThunkPpiList[Index].Flags |= EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST;
+
+  return gThunkPpiList;
+}
+
+
+EFI_STATUS
+EFIAPI
+AddThunkPpi (
+  IN  UINTN     Flags,
+  IN  EFI_GUID  *Guid,
+  IN  VOID      *Ppi
+  )
+{
+  UINTN Index;
+
+  gThunkPpiList = ReallocatePool (
+                    gThunkPpiListSize,
+                    gThunkPpiListSize + sizeof (EFI_PEI_PPI_DESCRIPTOR),
+                    gThunkPpiList
+                    );
+  if (gThunkPpiList == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  Index = (gThunkPpiListSize/sizeof (EFI_PEI_PPI_DESCRIPTOR));
+  gThunkPpiList[Index].Flags = Flags;
+  gThunkPpiList[Index].Guid  = Guid;
+  gThunkPpiList[Index].Ppi   = Ppi;
+  gThunkPpiListSize += sizeof (EFI_PEI_PPI_DESCRIPTOR);
+
+  return EFI_SUCCESS;
+}
+
+
+
+
+
diff --git a/roms/edk2/EmulatorPkg/Library/ThunkPpiList/ThunkPpiList.inf b/roms/edk2/EmulatorPkg/Library/ThunkPpiList/ThunkPpiList.inf
new file mode 100644
index 000000000..327aab629
--- /dev/null
+++ b/roms/edk2/EmulatorPkg/Library/ThunkPpiList/ThunkPpiList.inf
@@ -0,0 +1,33 @@
+## @file
+# Place thunk PPI in HOB.
+#
+# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Portions copyright (c) 2011, Apple Inc. All rights reserved.
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = ThunkPpiList
+  FILE_GUID                      = 465FDE84-E8B0-B04B-A843-A03F68F617A9
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = MemoryAllocationLib|SEC BASE USER_DEFINED
+
+[Sources]
+  ThunkPpiList.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  EmulatorPkg/EmulatorPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  BaseMemoryLib
+
+[BuildOptions]
+   XCODE:*_*_*_DLINK_PATH == gcc
+