qemuxml2xmltest: add virtio-options test

Add a test case with all the virtio devices we know to demonstrate
the addition of new options.

https://bugzilla.redhat.com/show_bug.cgi?id=1283251Reviewed-by: NPavel Hrdina <phrdina@redhat.com>

tests/qemuxml2argvdata/qemuxml2argv-virtio-options.xml

+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219136</memory>
+  <currentMemory unit='KiB'>219136</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-x86_64</emulator>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='raw'/>
+      <source file='/var/lib/libvirt/images/img1'/>
+      <target dev='vda' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
+    </disk>
+    <controller type='usb' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+    </controller>
+    <controller type='ide' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+    </controller>
+    <controller type='scsi' index='0' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
+    </controller>
+    <controller type='pci' index='0' model='pci-root'/>
+    <controller type='virtio-serial' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
+    </controller>
+    <filesystem type='mount' accessmode='passthrough'>
+      <source dir='/export/fs1'/>
+      <target dir='fs1'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+    </filesystem>
+    <filesystem type='mount' accessmode='mapped'>
+      <driver type='path' wrpolicy='immediate'/>
+      <source dir='/export/fs2'/>
+      <target dir='fs2'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
+    </filesystem>
+    <interface type='user'>
+      <mac address='52:54:56:58:5a:5c'/>
+      <model type='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </interface>
+    <input type='mouse' bus='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0e' function='0x0'/>
+    </input>
+    <input type='keyboard' bus='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x10' function='0x0'/>
+    </input>
+    <input type='tablet' bus='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x11' function='0x0'/>
+    </input>
+    <input type='passthrough' bus='virtio'>
+      <source evdev='/dev/input/event1234'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x12' function='0x0'/>
+    </input>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <video>
+      <model type='virtio' heads='1' primary='yes'>
+        <acceleration accel3d='yes'/>
+      </model>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </video>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0c' function='0x0'/>
+    </memballoon>
+    <rng model='virtio'>
+      <backend model='random'>/dev/random</backend>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0d' function='0x0'/>
+    </rng>
+  </devices>
+</domain>

tests/qemuxml2xmloutdata/qemuxml2xmlout-virtio-options.xml

+../qemuxml2argvdata/qemuxml2argv-virtio-options.xml
\ No newline at end of file

tests/qemuxml2xmltest.c

@@ -1106,6 +1106,7 @@ mymain(void)
 
     DO_TEST("memorybacking-set", NONE);
     DO_TEST("memorybacking-unset", NONE);
+    DO_TEST("virtio-options", QEMU_CAPS_VIRTIO_SCSI);
 
     virObjectUnref(cfg);