1 files changed, 35 insertions, 0 deletions
diff --git a/Silicon/Intel/KabylakeSiliconPkg/SystemAgent/Library/PeiDxeSmmSaPlatformLib/SaPlatformLibrary.c b/Silicon/Intel/KabylakeSiliconPkg/SystemAgent/Library/PeiDxeSmmSaPlatformLib/SaPlatformLibrary.c
new file mode 100644
index 0000000000..df662b0222
--- /dev/null
+++ b/Silicon/Intel/KabylakeSiliconPkg/SystemAgent/Library/PeiDxeSmmSaPlatformLib/SaPlatformLibrary.c
@@ -0,0 +1,35 @@
+/** @file
+  SA Platform Lib implementation.
+
+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 "SaPlatformLibrary.h"
+#include <Library/MmPciLib.h>
+#include <SaRegs.h>
+
+/**
+  Determine if PCH Link is DMI/OPI
+
+  @param[in] CpuModel             CPU model
+
+  @retval TRUE                    DMI
+  @retval FALSE                   OPI
+**/
+BOOLEAN
+IsPchLinkDmi (
+  IN CPU_FAMILY  CpuModel
+  )
+{
+  if (((CpuModel == EnumCpuSklDtHalo) || (CpuModel == EnumCpuKblDtHalo)) && ((MmioRead8 (MmPciBase (0, 0, 0) + R_SA_MC_DEVICE_ID) & (BIT2 | BIT1)) != BIT2)) {
+    return TRUE; // DMI
+  }
+  return FALSE;  // OPI
+}