1 files changed, 69 insertions, 0 deletions
diff --git a/EmbeddedPkg/Library/PrePiHobListPointerLib/PrePiHobListPointer.c b/EmbeddedPkg/Library/PrePiHobListPointerLib/PrePiHobListPointer.c
new file mode 100644
index 0000000000..9f9e9c7d44
--- /dev/null
+++ b/EmbeddedPkg/Library/PrePiHobListPointerLib/PrePiHobListPointer.c
@@ -0,0 +1,69 @@
+/** @file
+*
+*  Copyright (c) 2011, ARM Limited. All rights reserved.
+*  
+*  This program and the accompanying materials                          
+*  are licensed and made available under the terms and conditions of the BSD License         
+*  which accompanies this distribution.  The full text of the license may be found at        
+*  http://opensource.org/licenses/bsd-license.php                                            
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+*
+**/
+
+#include <PiPei.h>
+#include <Library/PrePiHobListPointerLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+
+//
+// Have to use build system to set the original value in case we are running
+// from FLASH and globals don't work. So if you do a GetHobList() and gHobList
+// and gHobList is NULL the PCD default values are used.
+//
+VOID *gHobList = 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
+  )
+{
+  if (gHobList == NULL) {
+    return (VOID *)*(UINTN*)PcdGet32 (PcdPrePiHobBase);
+  } else {
+    return gHobList;
+  }
+}
+
+
+
+/**
+  Updates the pointer to the HOB list.
+
+  @param  HobList       Hob list pointer to store
+  
+**/
+EFI_STATUS
+EFIAPI
+PrePeiSetHobList (
+  IN  VOID      *HobList
+  )
+{
+  gHobList = HobList;
+  
+  //
+  // If this code is running from ROM this could fail
+  //
+  return (gHobList == HobList) ? EFI_SUCCESS: EFI_UNSUPPORTED;
+}