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[virt-tools-list] [virt-manager PATCH 2/3] Automatically add multifunction address parameter when needed



Also check for use of duplicate addresses before passing such XML to
libvirt.  And fix tests (of course).

Signed-off-by: Martin Kletzander <mkletzan redhat com>
---
 tests/cli-test-xml/compare/many-devices.xml |  4 ++--
 virtinst/guest.py                           | 23 +++++++++++++++++++++++
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/tests/cli-test-xml/compare/many-devices.xml b/tests/cli-test-xml/compare/many-devices.xml
index 390c22e..b525472 100644
--- a/tests/cli-test-xml/compare/many-devices.xml
+++ b/tests/cli-test-xml/compare/many-devices.xml
@@ -46,7 +46,7 @@
     </controller>
     <controller type="usb" index="0" model="ich9-uhci1">
       <master startport="0"/>
-      <address type="pci" domain="0" bus="0" slot="4" function="0"/>
+      <address type="pci" domain="0" bus="0" slot="4" function="0" multifunction="on"/>
     </controller>
     <controller type="usb" index="0" model="ich9-uhci2">
       <master startport="2"/>
@@ -134,7 +134,7 @@
     </controller>
     <controller type="usb" index="0" model="ich9-uhci1">
       <master startport="0"/>
-      <address type="pci" domain="0" bus="0" slot="4" function="0"/>
+      <address type="pci" domain="0" bus="0" slot="4" function="0" multifunction="on"/>
     </controller>
     <controller type="usb" index="0" model="ich9-uhci2">
       <master startport="2"/>
diff --git a/virtinst/guest.py b/virtinst/guest.py
index db981fe..06b06cc 100644
--- a/virtinst/guest.py
+++ b/virtinst/guest.py
@@ -612,6 +612,7 @@ class Guest(XMLBuilder):
         for dev in self.get_all_devices():
             dev.set_defaults()
         self._add_implied_controllers()
+        self._check_address_multi()
         self._set_disk_defaults()
         self._set_net_defaults()
         self._set_input_defaults()
@@ -697,6 +698,28 @@ class Guest(XMLBuilder):
                 ctrl.address.set_addrstr("spapr-vio")
                 self.add_device(ctrl)

+    def _check_address_multi(self):
+        addresses = {}
+        for d in self._devices:
+            if d.address.type != d.address.ADDRESS_TYPE_PCI:
+                continue
+
+            addr = d.address
+            addrstr = "%d%d%d" % (d.address.domain,
+                                  d.address.bus,
+                                  d.address.slot)
+
+            if addrstr not in addresses:
+                addresses[addrstr] = {}
+            if addr.function in addresses[addrstr]:
+                raise ValueError(_("Duplicate address for devices %s and %s") %
+                                 (str(d), str(addresses[addrstr][addr.function])))
+            addresses[addrstr][addr.function] = d
+
+        for devs in addresses.values():
+            if len(devs) > 1 and 0 in devs:
+                devs[0].address.multifunction = True
+
     def _can_virtio(self, key):
         if not self.conn.is_qemu():
             return False
-- 
1.8.3.2


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