1 files changed, 102 insertions, 0 deletions
diff --git a/Platform/Intel/PurleyOpenBoardPkg/Pci/PciPlatform/PciIovPlatformPolicy.c b/Platform/Intel/PurleyOpenBoardPkg/Pci/PciPlatform/PciIovPlatformPolicy.c
new file mode 100644
index 0000000000..6737bbbcf0
--- /dev/null
+++ b/Platform/Intel/PurleyOpenBoardPkg/Pci/PciPlatform/PciIovPlatformPolicy.c
@@ -0,0 +1,102 @@
+/** @file
+
+Copyright (c) 2018, 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 <PiDxe.h>
+#include "PciPlatform.h"
+#include <Guid/SetupVariable.h>
+
+#ifdef EFI_PCI_IOV_SUPPORT
+
+/**
+
+    The GetSystemLowestPageSize() function retrieves the system lowest page size.
+    
+    @param This                 - Pointer to the EFI_PCI_IOV_PLATFORM_PROTOCOL instance.
+    @param SystemLowestPageSize - The system lowest page size. (This system supports a
+                                  page size of 2^(n+12) if bit n is set.)
+    
+    @retval EFI_SUCCESS           - The function completed successfully.
+    @retval EFI_INVALID_PARAMETER - SystemLowestPageSize is NULL.
+    
+**/
+EFI_STATUS
+EFIAPI
+GetSystemLowestPageSize (
+  IN  EFI_PCI_IOV_PLATFORM_PROTOCOL           *This,
+  OUT UINT32                                  *SystemLowestPageSize
+)
+{
+  UINT8                                 SystemPageSize;  
+
+  CopyMem (&SystemPageSize, (UINT8 *)PcdGetPtr(PcdSetupData) + OFFSET_OF(SYSTEM_CONFIGURATION, SystemPageSize), sizeof(UINT8));
+  
+  if (SystemLowestPageSize != NULL) {
+    //
+    // Page size is 4K
+    //
+    //*SystemLowestPageSize = 1;
+    *SystemLowestPageSize = SystemPageSize;
+  }
+  return EFI_SUCCESS;
+}
+
+/**
+
+    The GetIovPlatformPolicy() function retrieves the platform policy regarding PCI IOV.
+    
+    @param This         - Pointer to the EFI_PCI_IOV_PLATFORM_PROTOCOL instance.
+    @param PciIovPolicy - The platform policy for PCI IOV configuration.
+    
+    @retval EFI_SUCCESS           - The function completed successfully.
+    @retval EFI_INVALID_PARAMETER - PciPolicy is NULL.
+    
+**/
+EFI_STATUS
+EFIAPI 
+GetIovPlatformPolicy (
+  IN  EFI_PCI_IOV_PLATFORM_PROTOCOL           *This,
+  OUT EFI_PCI_IOV_PLATFORM_POLICY             *PciIovPolicy
+)
+{
+  UINT8                                 PolicyEnable;
+  UINT8                                 ARIEnable;
+  UINT8                                 SRIOVEnable;
+  UINT8                                 MRIOVEnable;
+
+  PolicyEnable = 0;
+  
+  CopyMem (&ARIEnable, (UINT8 *)PcdGetPtr(PcdSetupData) + OFFSET_OF(SYSTEM_CONFIGURATION, ARIEnable), sizeof(UINT8));
+  CopyMem (&SRIOVEnable, (UINT8 *)PcdGetPtr(PcdSetupData) + OFFSET_OF(SYSTEM_CONFIGURATION, SRIOVEnable), sizeof(UINT8));
+  CopyMem (&MRIOVEnable, (UINT8 *)PcdGetPtr(PcdSetupData) + OFFSET_OF(SYSTEM_CONFIGURATION, MRIOVEnable), sizeof(UINT8));
+
+  if (ARIEnable == TRUE) {
+    PolicyEnable = PolicyEnable | EFI_PCI_IOV_POLICY_ARI;
+  }
+
+  if (SRIOVEnable == TRUE) {
+    PolicyEnable = PolicyEnable | EFI_PCI_IOV_POLICY_SRIOV;
+  }
+
+  if (MRIOVEnable == TRUE) {
+    PolicyEnable = PolicyEnable | EFI_PCI_IOV_POLICY_MRIOV;
+  }
+  
+  if (PciIovPolicy != NULL) {
+    //*PciIovPolicy = EFI_PCI_IOV_POLICY_ARI | EFI_PCI_IOV_POLICY_SRIOV;
+    *PciIovPolicy = PolicyEnable;
+  }
+  return EFI_SUCCESS;
+}
+
+#endif
+