Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 41 insertions, 0 deletions

diff --git a/include/sysemu/hax.h b/include/sysemu/hax.h
new file mode 100644
index 000000000..247f0661d
--- /dev/null
+++ b/include/sysemu/hax.h
@@ -0,0 +1,41 @@
+/*
+ * QEMU HAXM support
+ *
+ * Copyright IBM, Corp. 2008
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * Copyright (c) 2011 Intel Corporation
+ *  Written by:
+ *  Jiang Yunhong<yunhong.jiang@intel.com>
+ *  Xin Xiaohui<xiaohui.xin@intel.com>
+ *  Zhang Xiantao<xiantao.zhang@intel.com>
+ *
+ * Copyright 2016 Google, Inc.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef QEMU_HAX_H
+#define QEMU_HAX_H
+
+int hax_sync_vcpus(void);
+
+#ifdef NEED_CPU_H
+
+#ifdef CONFIG_HAX
+
+int hax_enabled(void);
+
+#else /* CONFIG_HAX */
+
+#define hax_enabled() (0)
+
+#endif /* CONFIG_HAX */
+
+#endif /* NEED_CPU_H */
+
+#endif /* QEMU_HAX_H */