1 files changed, 42 insertions, 0 deletions
diff --git a/src/VBox/VMM/include/PDMInline.h b/src/VBox/VMM/include/PDMInline.h
new file mode 100644
index 00000000..abf1b6b8
--- /dev/null
+++ b/src/VBox/VMM/include/PDMInline.h
@@ -0,0 +1,42 @@
+/* $Id: PDMInline.h $ */
+/** @file
+ * PDM - Internal header file containing the inlined functions.
+ */
+
+/*
+ * Copyright (C) 2012-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+#ifndef VMM_INCLUDED_SRC_include_PDMInline_h
+#define VMM_INCLUDED_SRC_include_PDMInline_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+
+/**
+ * Calculates the next IRQ tag.
+ *
+ * @returns IRQ tag.
+ * @param   pVM                 The cross context VM structure.
+ * @param   idTracer            The ID of the source device.
+ */
+DECLINLINE(uint32_t) pdmCalcIrqTag(PVM pVM, uint32_t idTracer)
+{
+    uint32_t uTag = (pVM->pdm.s.uIrqTag + 1) & 0x3ff; /* {0..1023} */
+    if (!uTag)
+        uTag++;
+    pVM->pdm.s.uIrqTag = uTag |= (idTracer << 16);
+    return uTag;
+}
+
+#endif /* !VMM_INCLUDED_SRC_include_PDMInline_h */
+