1 files changed, 46 insertions, 0 deletions
diff --git a/PrmPkg/Include/Prm.h b/PrmPkg/Include/Prm.h
new file mode 100644
index 0000000000..0e3ccfffa3
--- /dev/null
+++ b/PrmPkg/Include/Prm.h
@@ -0,0 +1,46 @@
+/** @file
+
+  Common Platform Runtime Mechanism (PRM) definitions.
+
+  Copyright (c) Microsoft Corporation
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef PRM_H_
+#define PRM_H_
+
+#include <Uefi.h>
+#include <PrmContextBuffer.h>
+
+#if defined(_MSC_VER)
+  #define PRM_EXPORT_API                          __declspec(dllexport)
+#else
+  #define PRM_EXPORT_API
+#endif
+
+#define PRM_HANDLER_NAME_MAXIMUM_LENGTH           128
+
+#define PRM_STRING_(x)                            #x
+#define PRM_STRING(x)                             PRM_STRING_(x)
+
+/**
+  A Platform Runtime Mechanism (PRM) handler function.
+
+  @param[in]  ParameterBuffer             A pointer to a buffer with arbitrary data that is allocated and populated
+                                          by the PRM handler caller.
+  @param[in]  ContextBuffer               A pointer to a buffer with arbitrary data that is allocated in the firmware
+                                          boot environment.
+
+  @retval EFI_STATUS              The PRM handler executed successfully.
+  @retval Others                  An error occurred in the PRM handler.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI PRM_HANDLER) (
+  IN VOID                 *ParameterBuffer  OPTIONAL,
+  IN PRM_CONTEXT_BUFFER   *ContextBuffer  OPTIONAL
+  );
+
+#endif