1 files changed, 20 insertions, 0 deletions
diff --git a/include/hw/hyperv/hvgdk.h b/include/hw/hyperv/hvgdk.h
new file mode 100644
index 0000000..71161f4
--- /dev/null
+++ b/include/hw/hyperv/hvgdk.h
@@ -0,0 +1,20 @@
+/*
+ * Type definitions for the mshv guest interface.
+ *
+ * Copyright Microsoft, Corp. 2025
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef HW_HYPERV_HVGDK_H
+#define HW_HYPERV_HVGDK_H
+
+#define HVGDK_H_VERSION         (25125)
+
+enum hv_unimplemented_msr_action {
+    HV_UNIMPLEMENTED_MSR_ACTION_FAULT = 0,
+    HV_UNIMPLEMENTED_MSR_ACTION_IGNORE_WRITE_READ_ZERO = 1,
+    HV_UNIMPLEMENTED_MSR_ACTION_COUNT = 2,
+};
+
+#endif /* HW_HYPERV_HVGDK_H */