1 files changed, 30 insertions, 0 deletions
diff --git a/OvmfPkg/Tcg/Tcg2Config/Tpm12Support.h b/OvmfPkg/Tcg/Tcg2Config/Tpm12Support.h
new file mode 100644
index 0000000000..c739775d23
--- /dev/null
+++ b/OvmfPkg/Tcg/Tcg2Config/Tpm12Support.h
@@ -0,0 +1,30 @@
+/** @file
+  Declare the InternalTpm12Detect() function, hiding the TPM-1.2 detection
+  internals.
+
+  Copyright (C) 2020, Red Hat, Inc.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef TPM12_SUPPORT_H_
+#define TPM12_SUPPORT_H_
+
+#include <Uefi/UefiBaseType.h>
+
+/**
+  Detect the presence of a TPM with interface version 1.2.
+
+  @retval EFI_SUCCESS      TPM-1.2 available. The Tpm12RequestUseTpm() and
+                           Tpm12SubmitCommand(TPM_ORD_GetTicks) operations
+                           (from the Tpm12DeviceLib class) have succeeded.
+
+  @return                  Error codes propagated from Tpm12RequestUseTpm() and
+                           Tpm12SubmitCommand().
+**/
+EFI_STATUS
+InternalTpm12Detect (
+  VOID
+  );
+
+#endif // TPM12_SUPPORT_H_