1 files changed, 71 insertions, 0 deletions
diff --git a/Platform/Intel/KabylakeOpenBoardPkg/Policy/PolicyInitDxe/DxeSaPolicyUpdate.c b/Platform/Intel/KabylakeOpenBoardPkg/Policy/PolicyInitDxe/DxeSaPolicyUpdate.c
new file mode 100644
index 0000000000..384b94ba54
--- /dev/null
+++ b/Platform/Intel/KabylakeOpenBoardPkg/Policy/PolicyInitDxe/DxeSaPolicyUpdate.c
@@ -0,0 +1,71 @@
+/** @file
+  This file is the library for SA DXE Policy initialization.
+  
+Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that 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 "SaPolicyInitDxe.h"
+
+#define SA_VTD_RMRR_USB_LENGTH  0x20000
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_PHYSICAL_ADDRESS                  mAddress;
+GLOBAL_REMOVE_IF_UNREFERENCED UINTN                                 mSize;
+
+/**
+  Update RMRR Base and Limit Address for USB.
+
+**/
+VOID
+UpdateRmrrUsbAddress (
+  IN OUT  SA_POLICY_PROTOCOL    *SaPolicy
+  )
+{
+  EFI_STATUS              Status;
+  MISC_DXE_CONFIG         *MiscDxeConfig;
+
+  Status = GetConfigBlock ((VOID *)SaPolicy, &gMiscDxeConfigGuid, (VOID *)&MiscDxeConfig);
+  ASSERT_EFI_ERROR (Status);
+
+  if (1) {
+    mSize = EFI_SIZE_TO_PAGES(SA_VTD_RMRR_USB_LENGTH);
+    mAddress = SIZE_4GB;
+
+    Status = (gBS->AllocatePages) (
+                     AllocateMaxAddress,
+                     EfiReservedMemoryType,
+                     mSize,
+                     &mAddress
+                    );
+    ASSERT_EFI_ERROR (Status);
+
+    MiscDxeConfig->RmrrUsbBaseAddress[0] = mAddress;
+    MiscDxeConfig->RmrrUsbBaseAddress[1] = mAddress + SA_VTD_RMRR_USB_LENGTH - 1;
+  }
+}
+
+/**
+  Get data for platform policy from setup options.
+
+  @param[in] SaPolicy                  The pointer to get SA Policy protocol instance
+
+  @retval EFI_SUCCESS                  Operation success.
+
+**/
+EFI_STATUS
+EFIAPI
+UpdateDxeSaPolicy (
+  IN OUT  SA_POLICY_PROTOCOL    *SaPolicy
+  )
+{
+  UpdateRmrrUsbAddress (SaPolicy);
+  return EFI_SUCCESS;
+}
+