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, 67 insertions, 0 deletions

diff --git a/tests/qtest/libqos/virtio-9p.h b/tests/qtest/libqos/virtio-9p.h
new file mode 100644
index 000000000..480727120
--- /dev/null
+++ b/tests/qtest/libqos/virtio-9p.h
@@ -0,0 +1,67 @@
+/*
+ * libqos driver framework
+ *
+ * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+
+#ifndef TESTS_LIBQOS_VIRTIO_9P_H
+#define TESTS_LIBQOS_VIRTIO_9P_H
+
+#include "qgraph.h"
+#include "virtio.h"
+#include "virtio-pci.h"
+
+typedef struct QVirtio9P QVirtio9P;
+typedef struct QVirtio9PPCI QVirtio9PPCI;
+typedef struct QVirtio9PDevice QVirtio9PDevice;
+
+#define MOUNT_TAG "qtest"
+
+struct QVirtio9P {
+    QVirtioDevice *vdev;
+    QVirtQueue *vq;
+};
+
+struct QVirtio9PPCI {
+    QVirtioPCIDevice pci_vdev;
+    QVirtio9P v9p;
+};
+
+struct QVirtio9PDevice {
+    QOSGraphObject obj;
+    QVirtio9P v9p;
+};
+
+/**
+ * Creates the directory for the 9pfs 'local' filesystem driver to access.
+ */
+void virtio_9p_create_local_test_dir(void);
+
+/**
+ * Deletes directory previously created by virtio_9p_create_local_test_dir().
+ */
+void virtio_9p_remove_local_test_dir(void);
+
+/**
+ * Prepares QEMU command line for 9pfs tests using the 'local' fs driver.
+ */
+void virtio_9p_assign_local_driver(GString *cmd_line, const char *args);
+
+/**
+ * Returns path on host to the passed guest path. Result must be freed.
+ */
+char *virtio_9p_test_path(const char *path);
+
+#endif