cli: Add virtio option driver.page_per_vq=on

Signed-off-by: Cole Robinson <crobinso@redhat.com>

tests/data/cli/compare/virt-install-many-devices.xml

@@ -279,7 +279,7 @@
       </target>
     </controller>
     <filesystem type="mount" accessmode="mapped">
-      <driver ats="on" iommu="off" packed="on"/>
+      <driver ats="on" iommu="off" packed="on" page_per_vq="off"/>
       <alias name="testfsalias"/>
       <source dir="/source"/>
       <target dir="/target"/>

tests/test_cli.py

@@ -705,7 +705,7 @@ source.reservations.managed=no,source.reservations.source.type=unix,source.reser
 --hostdev mdev_4b20d080_1b54_4048_85b3_a6a62d165c01,address.type=pci,address.domain=0x0000,address.bus=0x01,address.slot=0x01,address.function=0x0,address.zpci.uid=0x0001,address.zpci.fid=0x00000001
 
 
---filesystem /source,/target,alias.name=testfsalias,driver.ats=on,driver.iommu=off,driver.packed=on
+--filesystem /source,/target,alias.name=testfsalias,driver.ats=on,driver.iommu=off,driver.packed=on,driver.page_per_vq=off
 --filesystem template_name,/,type=template,mode=passthrough
 --filesystem type=file,source=/tmp/somefile.img,target=/mount/point,accessmode=squash,driver.format=qcow2,driver.type=path,driver.wrpolicy=immediate
 --filesystem type-mount,source.dir=/,target=/

virtinst/cli.py

@@ -3318,6 +3318,8 @@ def _add_common_device_args(cls,
         _add_arg("driver.ats", "virtio_driver.ats", is_onoff=True)
         _add_arg("driver.iommu", "virtio_driver.iommu", is_onoff=True)
         _add_arg("driver.packed", "virtio_driver.packed", is_onoff=True)
+        _add_arg("driver.page_per_vq",
+                 "virtio_driver.page_per_vq", is_onoff=True)
 
 
 def _add_device_seclabel_args(cls, list_propname, prefix=""):

virtinst/devices/device.py

@@ -17,6 +17,7 @@ class DeviceVirtioDriver(XMLBuilder):
     ats = XMLProperty("./@ats", is_onoff=True)
     iommu = XMLProperty("./@iommu", is_onoff=True)
     packed = XMLProperty("./@packed", is_onoff=True)
+    page_per_vq = XMLProperty("./@page_per_vq", is_onoff=True)
 
 
 class DeviceSeclabel(XMLBuilder):