1 files changed, 67 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/VariableKeyLibNull/VariableKeyLibNull.c b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/VariableKeyLibNull/VariableKeyLibNull.c
new file mode 100644
index 00000000..a96b92a4
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/VariableKeyLibNull/VariableKeyLibNull.c
@@ -0,0 +1,67 @@
+/** @file
+  Null version of VariableKeyLib for build purpose. Don't use it in real product.
+
+Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#include <Library/DebugLib.h>
+#include <Library/VariableKeyLib.h>
+
+/**
+  Retrieves the key for integrity and/or confidentiality of variables.
+
+  @param[out]     VariableKey         A pointer to pointer for the variable key buffer.
+  @param[in,out]  VariableKeySize     The size in bytes of the variable key.
+
+  @retval       EFI_SUCCESS             The variable key was returned.
+  @retval       EFI_DEVICE_ERROR        An error occurred while attempting to get the variable key.
+  @retval       EFI_ACCESS_DENIED       The function was invoked after locking the key interface.
+  @retval       EFI_UNSUPPORTED         The variable key is not supported in the current boot configuration.
+**/
+EFI_STATUS
+EFIAPI
+GetVariableKey (
+      OUT VOID    **VariableKey,
+  IN  OUT UINTN   *VariableKeySize
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
+/**
+  Regenerates the variable key.
+
+  @retval       EFI_SUCCESS             The variable key was regenerated successfully.
+  @retval       EFI_DEVICE_ERROR        An error occurred while attempting to regenerate the key.
+  @retval       EFI_ACCESS_DENIED       The function was invoked after locking the key interface.
+  @retval       EFI_UNSUPPORTED         Key regeneration is not supported in the current boot configuration.
+**/
+EFI_STATUS
+EFIAPI
+RegenerateVariableKey (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
+/**
+  Locks the regenerate key interface.
+
+  @retval       EFI_SUCCESS             The key interface was locked successfully.
+  @retval       EFI_UNSUPPORTED         Locking the key interface is not supported in the current boot configuration.
+  @retval       Others                  An error occurred while attempting to lock the key interface.
+**/
+EFI_STATUS
+EFIAPI
+LockVariableKeyInterface (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+