diff options
Diffstat (limited to 'Platform/Intel/PurleyOpenBoardPkg/Pci/PciPlatform/PciIovPlatformPolicy.c')
-rw-r--r-- | Platform/Intel/PurleyOpenBoardPkg/Pci/PciPlatform/PciIovPlatformPolicy.c | 102 |
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
+
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