1 files changed, 123 insertions, 0 deletions
diff --git a/EdkNt32Pkg/Pei/FirmwareVolume/WinntFwh.c b/EdkNt32Pkg/Pei/FirmwareVolume/WinntFwh.c
new file mode 100644
index 0000000000..3764cb78ca
--- /dev/null
+++ b/EdkNt32Pkg/Pei/FirmwareVolume/WinntFwh.c
@@ -0,0 +1,123 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+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:
+  WinNtFwh.c
+    
+Abstract:
+  PEIM to abstract construction of firmware volume in a Windows NT environment.
+
+Revision History
+
+--*/
+
+
+#include <FlashLayout.h>
+
+
+EFI_STATUS
+EFIAPI
+PeimInitializeWinNtFwh (
+  IN EFI_FFS_FILE_HEADER       *FfsHeader,
+  IN EFI_PEI_SERVICES          **PeiServices
+  )
+/*++
+
+Routine Description:
+  Perform a call-back into the SEC simulator to get address of the Firmware Hub
+
+Arguments:
+  FfsHeader   - Ffs Header availible to every PEIM
+  PeiServices - General purpose services available to every PEIM.
+    
+Returns:
+  None
+
+--*/
+{
+  EFI_STATUS                  Status;
+  EFI_PEI_PPI_DESCRIPTOR      *PpiDescriptor;
+  NT_FWH_PPI                  *FwhPpi;
+  EFI_PHYSICAL_ADDRESS        FdBase;
+  EFI_FIRMWARE_VOLUME_HEADER  *FvHeader;
+  UINT64                      FdSize;
+  UINTN                       Index;
+
+  DEBUG ((EFI_D_ERROR, "NT 32 Firmware Volume PEIM Loaded\n"));
+
+  //
+  // Get the Fwh Information PPI
+  //
+  Status = (**PeiServices).LocatePpi (
+                            PeiServices,
+                            &gNtFwhPpiGuid, // GUID
+                            0,              // INSTANCE
+                            &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
+                            &FwhPpi         // PPI
+                            );
+  ASSERT_EFI_ERROR (Status);
+
+  Index = 0;
+  do {
+    //
+    // Get information about all the FD's in the system
+    //
+    Status = FwhPpi->NtFwh (Index, &FdBase, &FdSize);
+    if (!EFI_ERROR (Status)) {
+      //
+      // Assume the FD starts with an FV header
+      //
+      FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) FdBase;
+
+      //
+      // Make an FV Hob for the first FV in the FD
+      //
+      BuildFvHob (FdBase, FvHeader->FvLength);
+
+      if (Index == 0) {
+        //
+        // Assume the first FD was produced by the NT32.DSC
+        //  All these strange offests are needed to keep in
+        //  sync with the FlashMap and NT32.dsc file
+        //
+        BuildResourceDescriptorHob (
+          EFI_RESOURCE_FIRMWARE_DEVICE,
+          (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
+          FdBase,
+          (FvHeader->FvLength + EFI_WINNT_RUNTIME_UPDATABLE_LENGTH + EFI_WINNT_FTW_SPARE_BLOCK_LENGTH)
+          );
+
+        //
+        // Hard code the address of the spare block and variable services.
+        //  Assume it's a hard coded offset from FV0 in FD0.
+        //
+        FdBase  = FdBase + EFI_WINNT_RUNTIME_UPDATABLE_OFFSET;
+        FdSize  = EFI_WINNT_RUNTIME_UPDATABLE_LENGTH + EFI_WINNT_FTW_SPARE_BLOCK_LENGTH;
+
+        BuildFvHob (FdBase, FdSize);
+      } else {
+        //
+        // For other FD's just map them in.
+        //
+        BuildResourceDescriptorHob (
+          EFI_RESOURCE_FIRMWARE_DEVICE,
+          (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
+          FdBase,
+          FdSize
+          );
+      }
+    }
+
+    Index++;
+  } while (!EFI_ERROR (Status));
+
+  return Status;
+}