[RFC virt-manager] virt-manager: enable mdev support

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Enable virt-manager GUI to support add, edit, remove, hot-plug and
hot-unplug of mediated devices (like DASDs, APQNs and PCIs) in virtual
server.

It is not possible to edit mdev when a virtual server is in
running state, as this is not supported by libvirt.

The patch-series "virt-install: Add mediated device support" is the
base patch for this patch.

Signed-off-by: Shalini Chellathurai Saroja <shalini@xxxxxxxxxxxxx>
---
 tests/uitests/test_addhardware.py |  6 ++++++
 virtManager/addhardware.py        | 18 +++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/tests/uitests/test_addhardware.py b/tests/uitests/test_addhardware.py
index ce3da57c..56acc2fa 100644
--- a/tests/uitests/test_addhardware.py
+++ b/tests/uitests/test_addhardware.py
@@ -459,6 +459,12 @@ def testAddHosts(app):
     app.click_alert_button("device is already in use by", "Yes")
     lib.utils.check(lambda: details.active)
 
+    # Add MDEV device
+    _open_addhw(app, details)
+    tab = _select_hw(addhw, "MDEV Host Device", "host-tab")
+    tab.find_fuzzy("mdev_8e37ee90_2b51_45e3_9b25_bf8283c03110",
+                   "table cell").click()
+    _finish(addhw, check=details)
 
 
 def testAddChars(app):
diff --git a/virtManager/addhardware.py b/virtManager/addhardware.py
index cbf19f58..2df84bf5 100644
--- a/virtManager/addhardware.py
+++ b/virtManager/addhardware.py
@@ -249,6 +249,10 @@ class vmmAddHardware(vmmGObjectUI):
         add_hw_option(_("PCI Host Device"), "system-run", PAGE_HOSTDEV,
                       nodedev_enabled, nodedev_errstr, "pci")
 
+        add_hw_option(_("MDEV Host Device"), "system-run", PAGE_HOSTDEV,
+                      self.conn.support.conn_nodedev(),
+                      _("Connection does not support host device enumeration"),
+                      "mdev")
         add_hw_option(_("Video"), "video-display", PAGE_VIDEO, True,
                       _("Libvirt version does not support video devices."))
         add_hw_option(_("Watchdog"), "device_pci", PAGE_WATCHDOG,
@@ -656,6 +660,9 @@ class vmmAddHardware(vmmGObjectUI):
                       (dehex(hostdev.domain), dehex(hostdev.bus),
                        dehex(hostdev.slot), dehex(hostdev.function)))
 
+        elif hostdev.uuid:
+            label += " %s" % (str(hostdev.uuid))
+
         return label
 
 
@@ -775,6 +782,11 @@ class vmmAddHardware(vmmGObjectUI):
                     if dev.xmlobj.name == subdev.xmlobj.parent:
                         prettyname += " (%s)" % subdev.pretty_name()
 
+            if devtype == "mdev":
+                for subdev in self.conn.filter_nodedevs("mdev"):
+                    if dev.xmlobj.name == subdev.xmlobj.parent:
+                        prettyname += " (%s)" % subdev.pretty_name()
+
             model.append([dev.xmlobj, prettyname])
 
         if len(model) == 0:
@@ -981,11 +993,13 @@ class vmmAddHardware(vmmGObjectUI):
 
         if page == PAGE_HOSTDEV:
             # Need to do this here, since we share the hostdev page
-            # between two different HW options
+            # between different HW options
             row = self._get_hw_selection()
             devtype = "usb_device"
             if row and row[5] == "pci":
                 devtype = "pci"
+            if row and row[5] == "mdev":
+                devtype = "mdev"
             self._populate_hostdev_model(devtype)
 
         if page == PAGE_CONTROLLER:
@@ -1036,6 +1050,8 @@ class vmmAddHardware(vmmGObjectUI):
             row = self._get_hw_selection()
             if row and row[5] == "pci":
                 return _("PCI Device")
+            if row and row[5] == "mdev":
+                return _("MDEV Device")
             return _("USB Device")
 
         raise RuntimeError("Unknown page %s" % page)  # pragma: no cover
-- 
2.30.2




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