1 files changed, 91 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/IntelFsp2Pkg/FspSecCore/SecFspApiChk.c b/src/VBox/Devices/EFI/Firmware/IntelFsp2Pkg/FspSecCore/SecFspApiChk.c
new file mode 100644
index 00000000..06044f9e
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/IntelFsp2Pkg/FspSecCore/SecFspApiChk.c
@@ -0,0 +1,91 @@
+/** @file
+
+  Copyright (c) 2016 - 2020, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "SecFsp.h"
+
+
+/**
+  This function check the FSP API calling condition.
+
+  @param[in]  ApiIdx           Internal index of the FSP API.
+  @param[in]  ApiParam         Parameter of the FSP API.
+
+**/
+EFI_STATUS
+EFIAPI
+FspApiCallingCheck (
+  IN UINT8     ApiIdx,
+  IN VOID     *ApiParam
+  )
+{
+  EFI_STATUS                Status;
+  FSP_GLOBAL_DATA           *FspData;
+
+  Status = EFI_SUCCESS;
+  FspData = GetFspGlobalDataPointer ();
+
+  if (ApiIdx == NotifyPhaseApiIndex) {
+    //
+    // NotifyPhase check
+    //
+    if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) {
+      Status = EFI_UNSUPPORTED;
+    } else {
+      if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {
+        Status = EFI_UNSUPPORTED;
+      }
+    }
+  } else if (ApiIdx == FspMemoryInitApiIndex) {
+    //
+    // FspMemoryInit check
+    //
+    if ((UINT32)FspData != 0xFFFFFFFF) {
+      Status = EFI_UNSUPPORTED;
+    } else if (EFI_ERROR (FspUpdSignatureCheck (ApiIdx, ApiParam))) {
+      Status = EFI_INVALID_PARAMETER;
+    }
+  } else if (ApiIdx == TempRamExitApiIndex) {
+    //
+    // TempRamExit check
+    //
+    if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) {
+      Status = EFI_UNSUPPORTED;
+    } else {
+      if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {
+        Status = EFI_UNSUPPORTED;
+      }
+    }
+  } else if ((ApiIdx == FspSiliconInitApiIndex) || (ApiIdx == FspMultiPhaseSiInitApiIndex)) {
+    //
+    // FspSiliconInit check
+    //
+    if ((FspData == NULL) || ((UINT32)FspData == 0xFFFFFFFF)) {
+      Status = EFI_UNSUPPORTED;
+    } else {
+      if (FspData->Signature != FSP_GLOBAL_DATA_SIGNATURE) {
+        Status = EFI_UNSUPPORTED;
+      } else if (EFI_ERROR (FspUpdSignatureCheck (FspSiliconInitApiIndex, ApiParam))) {
+        Status = EFI_INVALID_PARAMETER;
+      }
+    }
+  } else {
+    Status = EFI_UNSUPPORTED;
+  }
+
+  if (!EFI_ERROR (Status)) {
+    if ((ApiIdx != FspMemoryInitApiIndex)) {
+      //
+      // For FspMemoryInit, the global data is not valid yet
+      // The API index will be updated by SecCore after the global data
+      // is initialized
+      //
+      SetFspApiCallingIndex (ApiIdx);
+    }
+  }
+
+  return Status;
+}