1 files changed, 110 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Compatibility/FvHobToFvInfoThunk/FvInfoToFvHobThunk.c b/EdkCompatibilityPkg/Compatibility/FvHobToFvInfoThunk/FvInfoToFvHobThunk.c
new file mode 100644
index 0000000000..a98331edc0
--- /dev/null
+++ b/EdkCompatibilityPkg/Compatibility/FvHobToFvInfoThunk/FvInfoToFvHobThunk.c
@@ -0,0 +1,110 @@
+/** @file
+ Module produces EFI_FIRMWARE_VOLUME_INFO_PPI based on each FV HOB if no such PPI exist for the FV.
+
+ UEFI PI Spec supersedes Intel's Framework Specs. 
+ EFI_FIRMWARE_VOLUME_INFO_PPI defined in PI spec is required by PI PEI core to dispatch PEIMs or find DXE core
+ in the FV.
+ This module produces produces EFI_FIRMWARE_VOLUME_INFO_PPI based on each FV HOB if no such PPI exist for the FV.
+ This module is used on platform when both of these two conditions are true:
+ 1) Framework platform module produces FV HOB but does not build EFI_FIRMWARE_VOLUME_INFO_PPI.
+ 2) The platform has PI PEI core that cosumes EFI_FIRMWARE_VOLUME_INFO_PPI to dispatch PEIMs or DXE core
+     in FVs other than Boot Fimware Volume.
+
+Copyright (c) 2008 Intel Corporation. <BR>
+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.
+Module Name:
+
+**/
+
+#include <PiPei.h>
+#include <Ppi/FirmwareVolumeInfo.h>
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/HobLib.h>
+#include <Library/PeiPiLib.h>
+
+
+/**
+  Check if there is a matching EFI_PEI_FIRMWARE_VOLUME_INFO_PPI for the FV described by FvHob.
+
+  This function located all existing instance of EFI_PEI_FIRMWARE_VOLUME_INFO_PPI in the platform.
+  Then it compare the base address of the FVs found with that of FvHob. If a matching base address is
+  found, the function return TRUE. Otherwise, FALSE is returned.
+
+  If a matching base address of FV is found but the length of FV does not match, then ASSERT ().
+
+  @param  FvHob      The FV Hob.
+
+  @retval   TRUE       A instance of EFI_PEI_FIRMWARE_VOLUME_INFO_PPI is already installed.
+
+**/
+BOOLEAN
+FvInfoPpiInstalled (
+  EFI_HOB_FIRMWARE_VOLUME * FvHob
+  )
+{
+  EFI_STATUS                            Status;
+  UINTN                                 Idx;
+  EFI_PEI_FIRMWARE_VOLUME_INFO_PPI      *FvInfoPpi;
+
+  for (Idx = 0; ; Idx++) {
+    Status = PeiServicesLocatePpi (
+                &gEfiPeiFirmwareVolumeInfoPpiGuid,
+                Idx,
+                NULL,
+                (VOID **) &FvInfoPpi
+               );
+    if (!EFI_ERROR (Status)) {
+      if (FvHob->BaseAddress == (EFI_PHYSICAL_ADDRESS) (UINTN) FvInfoPpi->FvInfo) {
+        ASSERT (FvHob->Length == (UINT64) FvInfoPpi->FvInfoSize);
+        return TRUE;
+      }
+    } else {
+      break;
+    }
+  }
+
+  return FALSE;
+}
+
+/**
+  PEIM's standard entry point.
+  
+  @param FfsHeader    Image's header
+  @param PeiServices  Pointer of EFI_PEI_SERVICES
+  @return EFI_SUCESS This entry point always return successfully.
+  
+**/
+EFI_STATUS
+EFIAPI
+PeimEntry (
+  IN EFI_PEI_FILE_HANDLE       FfsHeader,
+  IN CONST EFI_PEI_SERVICES    **PeiServices
+  )
+{
+  EFI_PEI_HOB_POINTERS        HobPointer;
+  
+  for (HobPointer.Raw = GetNextHob (EFI_HOB_TYPE_FV, GetHobList ());
+        HobPointer.Raw != NULL;
+        HobPointer.Raw = GetNextHob (EFI_HOB_TYPE_FV, GET_NEXT_HOB (HobPointer))) {
+    if (!FvInfoPpiInstalled (HobPointer.FirmwareVolume)) {
+      PiLibInstallFvInfoPpi (
+        &(((EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) HobPointer.FirmwareVolume->BaseAddress)->FileSystemGuid),
+        (VOID *) (UINTN) HobPointer.FirmwareVolume->BaseAddress,
+        (UINT32) HobPointer.FirmwareVolume->Length,
+        NULL,
+        NULL
+        );
+    }
+  }
+
+  return EFI_SUCCESS;
+}
+