diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
index bbac399de0..3b0c205958 100644
--- a/src/conf/domain_addr.c
+++ b/src/conf/domain_addr.c
@@ -1489,7 +1489,7 @@ virDomainUSBAddressFindPort(virDomainUSBAddressSetPtr addrs,
 
 #define VIR_DOMAIN_USB_HUB_PORTS 8
 
-static int
+int
 virDomainUSBAddressSetAddHub(virDomainUSBAddressSetPtr addrs,
                              virDomainHubDefPtr hub)
 {
@@ -1564,6 +1564,119 @@ virDomainUSBAddressSetAddControllers(virDomainUSBAddressSetPtr addrs,
 }
 
 
+static int
+virDomainUSBAddressFindFreePort(virDomainUSBAddressHubPtr hub,
+                                unsigned int *portpath,
+                                unsigned int level)
+{
+    unsigned int port;
+    ssize_t portIdx;
+    size_t i;
+
+    /* Look for free ports on the current hub */
+    if ((portIdx = virBitmapNextClearBit(hub->portmap, -1)) >= 0) {
+        port = portIdx + 1;
+        VIR_DEBUG("Found a free port %u at level %u", port, level);
+        portpath[level] = port;
+        return 0;
+    }
+
+    VIR_DEBUG("No ports found on hub %p, trying the hubs on it", hub);
+
+    if (level >= VIR_DOMAIN_DEVICE_USB_MAX_PORT_DEPTH - 1)
+        return -1;
+
+    /* Recursively search through the ports that contain another hub */
+    for (i = 0; i < hub->nports; i++) {
+        if (!hub->ports[i])
+            continue;
+
+        port = i + 1;
+        VIR_DEBUG("Looking at USB hub at level: %u port: %u", level, port);
+        if (virDomainUSBAddressFindFreePort(hub->ports[i], portpath,
+                                            level + 1) < 0)
+            continue;
+
+        portpath[level] = port;
+        return 0;
+    }
+    return -1;
+}
+
+
+/* Try to find a free port on bus @bus.
+ *
+ * Returns  0 on success
+ *         -1 on fatal error (OOM)
+ *         -2 if there is no bus at @bus or no free port on this bus
+ */
+static int
+virDomainUSBAddressAssignFromBus(virDomainUSBAddressSetPtr addrs,
+                                 virDomainDeviceInfoPtr info,
+                                 size_t bus)
+{
+    unsigned int portpath[VIR_DOMAIN_DEVICE_USB_MAX_PORT_DEPTH] = { 0 };
+    virDomainUSBAddressHubPtr hub = addrs->buses[bus];
+    char *portStr = NULL;
+    int ret = -1;
+
+    if (!hub)
+        return -2;
+
+    if (virDomainUSBAddressFindFreePort(hub, portpath, 0) < 0)
+        return -2;
+
+    /* we found a free port */
+    if (!(portStr = virDomainUSBAddressPortFormat(portpath)))
+        goto cleanup;
+
+    info->type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB;
+    info->addr.usb.bus = bus;
+    memcpy(info->addr.usb.port, portpath, sizeof(portpath));
+    VIR_DEBUG("Assigning USB addr bus=%u port=%s",
+              info->addr.usb.bus, portStr);
+    if (virDomainUSBAddressReserve(info, addrs) < 0)
+        goto cleanup;
+
+    ret = 0;
+ cleanup:
+    VIR_FREE(portStr);
+    return ret;
+}
+
+
+int
+virDomainUSBAddressAssign(virDomainUSBAddressSetPtr addrs,
+                          virDomainDeviceInfoPtr info)
+{
+    size_t i;
+    int rc;
+
+    if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
+        VIR_DEBUG("A USB port on bus %u was requested", info->addr.usb.bus);
+        if (!addrs->buses[info->addr.usb.bus]) {
+            virReportError(VIR_ERR_XML_ERROR,
+                           _("USB bus %u requested but no controller "
+                             "with that index is present"), info->addr.usb.bus);
+            return -1;
+        }
+        rc = virDomainUSBAddressAssignFromBus(addrs, info, info->addr.usb.bus);
+        if (rc >= -1)
+            return rc;
+    } else {
+        VIR_DEBUG("Looking for a free USB port on all the buses");
+        for (i = 0; i < addrs->nbuses; i++) {
+            rc = virDomainUSBAddressAssignFromBus(addrs, info, i);
+            if (rc >= -1)
+                return rc;
+        }
+    }
+
+    virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("No free USB ports"));
+    return -1;
+}
+
+
 int
 virDomainUSBAddressReserve(virDomainDeviceInfoPtr info,
                            void *data)
@@ -1604,3 +1717,21 @@ virDomainUSBAddressReserve(virDomainDeviceInfoPtr info,
     VIR_FREE(portStr);
     return ret;
 }
+
+
+int
+virDomainUSBAddressEnsure(virDomainUSBAddressSetPtr addrs,
+                          virDomainDeviceInfoPtr info)
+{
+    if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE ||
+        (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB &&
+         !virDomainUSBAddressPortIsValid(info->addr.usb.port))) {
+        if (virDomainUSBAddressAssign(addrs, info) < 0)
+            return -1;
+    } else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
+        if (virDomainUSBAddressReserve(info, addrs) < 0)
+            return -1;
+    }
+
+    return 0;
+}
diff --git a/src/conf/domain_addr.h b/src/conf/domain_addr.h
index a24d2166ef..633aa16c0f 100644
--- a/src/conf/domain_addr.h
+++ b/src/conf/domain_addr.h
@@ -273,10 +273,24 @@ virDomainUSBAddressSetPtr virDomainUSBAddressSetCreate(void);
 int virDomainUSBAddressSetAddControllers(virDomainUSBAddressSetPtr addrs,
                                          virDomainDefPtr def)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+int
+virDomainUSBAddressSetAddHub(virDomainUSBAddressSetPtr addrs,
+                             virDomainHubDefPtr hub)
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 void virDomainUSBAddressSetFree(virDomainUSBAddressSetPtr addrs);
 
 int
 virDomainUSBAddressReserve(virDomainDeviceInfoPtr info,
                            void *data)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+
+int
+virDomainUSBAddressAssign(virDomainUSBAddressSetPtr addrs,
+                          virDomainDeviceInfoPtr info)
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+
+int
+virDomainUSBAddressEnsure(virDomainUSBAddressSetPtr addrs,
+                          virDomainDeviceInfoPtr info)
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 #endif /* __DOMAIN_ADDR_H__ */
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index d8744aab40..0242829311 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -107,11 +107,14 @@ virDomainPCIAddressSetGrow;
 virDomainPCIAddressSlotInUse;
 virDomainPCIAddressValidate;
 virDomainPCIControllerModelToConnectType;
+virDomainUSBAddressAssign;
+virDomainUSBAddressEnsure;
 virDomainUSBAddressPortFormat;
 virDomainUSBAddressPortFormatBuf;
 virDomainUSBAddressPortIsValid;
 virDomainUSBAddressReserve;
 virDomainUSBAddressSetAddControllers;
+virDomainUSBAddressSetAddHub;
 virDomainUSBAddressSetCreate;
 virDomainUSBAddressSetFree;
 virDomainVirtioSerialAddrAssign;
diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c
index f66b2f09da..21c2ecf937 100644
--- a/src/qemu/qemu_domain_address.c
+++ b/src/qemu/qemu_domain_address.c
@@ -1622,6 +1622,63 @@ qemuDomainAssignPCIAddresses(virDomainDefPtr def,
 }
 
 
+struct qemuAssignUSBIteratorInfo {
+    virDomainUSBAddressSetPtr addrs;
+    size_t count;
+};
+
+
+static int
+qemuDomainAssignUSBPortsIterator(virDomainDeviceInfoPtr info,
+                                 void *opaque)
+{
+    struct qemuAssignUSBIteratorInfo *data = opaque;
+
+    if (info->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
+        return 0;
+
+    return virDomainUSBAddressAssign(data->addrs, info);
+}
+
+
+static int
+qemuDomainAssignUSBHubs(virDomainUSBAddressSetPtr addrs,
+                        virDomainDefPtr def)
+{
+    size_t i;
+
+    for (i = 0; i < def->nhubs; i++) {
+        virDomainHubDefPtr hub = def->hubs[i];
+        if (hub->type != VIR_DOMAIN_HUB_TYPE_USB)
+            continue;
+
+        if (hub->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB &&
+            virDomainUSBAddressPortIsValid(hub->info.addr.usb.port))
+            continue;
+        if (virDomainUSBAddressAssign(addrs, &hub->info) < 0)
+            return -1;
+
+        if (virDomainUSBAddressSetAddHub(addrs, hub) < 0)
+            return -1;
+    }
+
+    return 0;
+}
+
+
+static int
+qemuDomainAssignUSBPorts(virDomainUSBAddressSetPtr addrs,
+                         virDomainDefPtr def)
+{
+    struct qemuAssignUSBIteratorInfo data = { .addrs = addrs };
+
+    return virDomainUSBDeviceDefForeach(def,
+                                        qemuDomainAssignUSBPortsIterator,
+                                        &data,
+                                        true);
+}
+
+
 static int
 qemuDomainAssignUSBAddresses(virDomainDefPtr def,
                              virDomainObjPtr obj)
@@ -1642,6 +1699,14 @@ qemuDomainAssignUSBAddresses(virDomainDefPtr def,
 
     VIR_DEBUG("Existing USB addresses have been reserved");
 
+    if (qemuDomainAssignUSBHubs(addrs, def) < 0)
+        goto cleanup;
+
+    if (qemuDomainAssignUSBPorts(addrs, def) < 0)
+        goto cleanup;
+
+    VIR_DEBUG("Finished assigning USB ports");
+
     if (obj && obj->privateData) {
         priv = obj->privateData;
         priv->usbaddrs = addrs;
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-bios-nvram.args b/tests/qemuxml2argvdata/qemuxml2argv-bios-nvram.args
index 6d76dc1fe0..92e6362596 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-bios-nvram.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-bios-nvram.args
@@ -22,5 +22,5 @@ readonly=on \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
 -serial pty \
--device usb-tablet,id=input0 \
+-device usb-tablet,id=input0,bus=usb.0,port=1 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-bios.args b/tests/qemuxml2argvdata/qemuxml2argv-bios.args
index 701eb5d305..fdd9a4e1e1 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-bios.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-bios.args
@@ -22,5 +22,5 @@ QEMU_AUDIO_DRV=none \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
 -serial pty \
--device usb-tablet,id=input0 \
+-device usb-tablet,id=input0,bus=usb.0,port=1 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-controller-order.args b/tests/qemuxml2argvdata/qemuxml2argv-controller-order.args
index 8415c88cda..3361383386 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-controller-order.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-controller-order.args
@@ -19,8 +19,8 @@ nowait \
 -boot order=cna,menu=off \
 -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x7 \
--device usb-ccid,id=ccid0 \
--device usb-hub,id=hub0 \
+-device usb-ccid,id=ccid0,bus=usb.0,port=1.1 \
+-device usb-hub,id=hub0,bus=usb.0,port=1 \
 -drive file=/tmp/fdr.img,format=raw,if=none,id=drive-virtio-disk0,cache=none,\
 aio=native \
 -device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,\
@@ -37,10 +37,10 @@ media=cdrom,id=drive-ide0-1-0,readonly=on \
 -chardev spicevmc,id=charchannel0,name=vdagent \
 -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,\
 id=channel0,name=com.redhat.spice.0 \
--device usb-tablet,id=input0 \
+-device usb-tablet,id=input0,bus=usb.0,port=1.2 \
 -spice port=5901,tls-port=5902,addr=0.0.0.0,x509-dir=/etc/pki/libvirt-spice \
 -vga cirrus \
 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 \
 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 \
--device usb-host,hostbus=14,hostaddr=6,id=hostdev0 \
+-device usb-host,hostbus=14,hostaddr=6,id=hostdev0,bus=usb.0,port=2 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.args
index e2b7a70227..d002f99aa9 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device-removable.args
@@ -21,5 +21,6 @@ QEMU_AUDIO_DRV=none \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
 -drive file=/tmp/usbdisk.img,format=raw,if=none,id=drive-usb-disk0 \
--device usb-storage,drive=drive-usb-disk0,id=usb-disk0,removable=on \
+-device usb-storage,bus=usb.0,port=1,drive=drive-usb-disk0,id=usb-disk0,\
+removable=on \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device.args
index 7e823d49f2..4ac1a9c28b 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-usb-device.args
@@ -21,5 +21,5 @@ QEMU_AUDIO_DRV=none \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
 -drive file=/tmp/usbdisk.img,format=raw,if=none,id=drive-usb-disk0 \
--device usb-storage,drive=drive-usb-disk0,id=usb-disk0 \
+-device usb-storage,bus=usb.0,port=1,drive=drive-usb-disk0,id=usb-disk0 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-timeout.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-timeout.args
index 58a3766be9..bab81ffdb9 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-timeout.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-timeout.args
@@ -28,7 +28,7 @@ media=cdrom,id=drive-ide0-1-0,readonly=on \
 -device rtl8139,vlan=0,id=net0,mac=52:54:00:71:70:89,bus=pci.0,addr=0x7 \
 -net tap,fd=3,vlan=0,name=hostnet0 \
 -serial pty \
--device usb-tablet,id=input0 \
+-device usb-tablet,id=input0,bus=usb.0,port=1 \
 -spice port=5900,addr=127.0.0.1 \
 -vga std \
 -device AC97,id=sound0,bus=pci.0,addr=0x3 \
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-usb-redir.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-usb-redir.args
index a7ff9049bf..7d3146c6d0 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-usb-redir.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-usb-redir.args
@@ -30,7 +30,7 @@ zlib-glz-wan-compression=auto,playback-compression=on,streaming-video=filter,\
 disable-copy-paste \
 -vga cirrus \
 -chardev socket,id=charredir0,host=localhost,port=4000 \
--device usb-redir,chardev=charredir0,id=redir0 \
+-device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=1 \
 -chardev spicevmc,id=charredir1,name=usbredir \
 -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=4 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address-device-boot.args b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address-device-boot.args
index bb7f1e1d31..4d24cb40a0 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address-device-boot.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address-device-boot.args
@@ -19,5 +19,6 @@ QEMU_AUDIO_DRV=none \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
--device usb-host,hostbus=14,hostaddr=6,id=hostdev0,bootindex=1 \
+-device usb-host,hostbus=14,hostaddr=6,id=hostdev0,bootindex=1,bus=usb.0,\
+port=1 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address-device.args b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address-device.args
index d7f0c39357..06187ec28b 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address-device.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address-device.args
@@ -20,5 +20,5 @@ QEMU_AUDIO_DRV=none \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
--device usb-host,hostbus=14,hostaddr=6,id=hostdev0 \
+-device usb-host,hostbus=14,hostaddr=6,id=hostdev0,bus=usb.0,port=1 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address.args b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address.args
index 5de2a6b238..da409f6692 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-usb-address.args
@@ -19,4 +19,4 @@ QEMU_AUDIO_DRV=none \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
--device usb-host,hostbus=14,hostaddr=6,id=hostdev0
+-device usb-host,hostbus=14,hostaddr=6,id=hostdev0,bus=usb.0,port=1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-numa.args b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-numa.args
index 5be70e18ac..2eb006e643 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-numa.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-numa.args
@@ -46,7 +46,7 @@ id=channel0,name=org.qemu.guest_agent.0 \
 -chardev spicevmc,id=charchannel1,name=vdagent \
 -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,\
 id=channel1,name=com.redhat.spice.0 \
--device usb-tablet,id=input0 \
+-device usb-tablet,id=input0,bus=usb.0,port=1 \
 -spice port=5901,tls-port=5902,addr=127.0.0.1,x509-dir=/etc/pki/libvirt-spice \
 -vga qxl \
 -global qxl-vga.ram_size=67108864 \
@@ -54,7 +54,7 @@ id=channel1,name=com.redhat.spice.0 \
 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 \
 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 \
 -chardev spicevmc,id=charredir0,name=usbredir \
--device usb-redir,chardev=charredir0,id=redir0 \
+-device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=2 \
 -chardev spicevmc,id=charredir1,name=usbredir \
--device usb-redir,chardev=charredir1,id=redir1 \
+-device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-input-usbmouse.args b/tests/qemuxml2argvdata/qemuxml2argv-input-usbmouse.args
index e124ddbc92..f8250549f8 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-input-usbmouse.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-input-usbmouse.args
@@ -19,4 +19,4 @@ QEMU_AUDIO_DRV=none \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
--device usb-mouse,id=input0
+-device usb-mouse,id=input0,bus=usb.0,port=1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-input-usbtablet.args b/tests/qemuxml2argvdata/qemuxml2argv-input-usbtablet.args
index bb677e545b..54f8d0cdf6 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-input-usbtablet.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-input-usbtablet.args
@@ -19,4 +19,4 @@ QEMU_AUDIO_DRV=none \
 -usb \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
--device usb-tablet,id=input0
+-device usb-tablet,id=input0,bus=usb.0,port=1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-kbd.args b/tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-kbd.args
index afc817d6ea..845128344f 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-kbd.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-usb-kbd.args
@@ -22,4 +22,4 @@ server,nowait \
 -device pci-ohci,id=usb,bus=pci,addr=0x1 \
 -chardev pty,id=charserial0 \
 -device spapr-vty,chardev=charserial0,reg=0x30000000 \
--device usb-kbd,id=input0
+-device usb-kbd,id=input0,bus=usb.0,port=1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-serial-spiceport.args b/tests/qemuxml2argvdata/qemuxml2argv-serial-spiceport.args
index 78aba7c364..54293bb894 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-serial-spiceport.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-serial-spiceport.args
@@ -23,7 +23,7 @@ server,nowait \
 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
 -chardev spiceport,id=charserial0,name=org.qemu.console.serial.0 \
 -device isa-serial,chardev=charserial0,id=serial0 \
--device usb-tablet,id=input0 \
+-device usb-tablet,id=input0,bus=usb.0,port=1 \
 -spice port=5903,tls-port=5904,addr=127.0.0.1,x509-dir=/etc/pki/libvirt-spice \
 -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,bus=pci.0,\
 addr=0x2 \
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-controller.args b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-controller.args
index 34bbfed2bf..913a6b7fcc 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-controller.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-controller.args
@@ -19,7 +19,7 @@ server,nowait \
 -mon chardev=charmonitor,id=monitor,mode=readline \
 -no-acpi \
 -boot c \
--device usb-ccid,id=ccid0 \
+-device usb-ccid,id=ccid0,bus=usb.0,port=1 \
 -usb \
 -device ccid-card-emulated,backend=nss-emulated,id=smartcard0,bus=ccid0.0 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-host-certificates.args b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-host-certificates.args
index f57196ede2..f6ee9ed75f 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-host-certificates.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-host-certificates.args
@@ -19,7 +19,7 @@ server,nowait \
 -mon chardev=charmonitor,id=monitor,mode=readline \
 -no-acpi \
 -boot c \
--device usb-ccid,id=ccid0 \
+-device usb-ccid,id=ccid0,bus=usb.0,port=1 \
 -usb \
 -device ccid-card-emulated,backend=certificates,cert1=cert1,cert2=cert2,\
 cert3=cert3,db=/etc/pki/nssdb,id=smartcard0,bus=ccid0.0 \
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-host.args b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-host.args
index 34bbfed2bf..913a6b7fcc 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-host.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-host.args
@@ -19,7 +19,7 @@ server,nowait \
 -mon chardev=charmonitor,id=monitor,mode=readline \
 -no-acpi \
 -boot c \
--device usb-ccid,id=ccid0 \
+-device usb-ccid,id=ccid0,bus=usb.0,port=1 \
 -usb \
 -device ccid-card-emulated,backend=nss-emulated,id=smartcard0,bus=ccid0.0 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-passthrough-spicevmc.args b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-passthrough-spicevmc.args
index fbae835a8c..d4ebe436eb 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-passthrough-spicevmc.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-passthrough-spicevmc.args
@@ -19,7 +19,7 @@ server,nowait \
 -mon chardev=charmonitor,id=monitor,mode=readline \
 -no-acpi \
 -boot c \
--device usb-ccid,id=ccid0 \
+-device usb-ccid,id=ccid0,bus=usb.0,port=1 \
 -usb \
 -chardev spicevmc,id=charsmartcard0,name=smartcard \
 -device ccid-card-passthru,chardev=charsmartcard0,id=smartcard0,bus=ccid0.0 \
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-passthrough-tcp.args b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-passthrough-tcp.args
index abf07ddfd7..e6034bd191 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-smartcard-passthrough-tcp.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-smartcard-passthrough-tcp.args
@@ -19,7 +19,7 @@ server,nowait \
 -mon chardev=charmonitor,id=monitor,mode=readline \
 -no-acpi \
 -boot c \
--device usb-ccid,id=ccid0 \
+-device usb-ccid,id=ccid0,bus=usb.0,port=1 \
 -usb \
 -chardev socket,id=charsmartcard0,host=127.0.0.1,port=2001,server,nowait \
 -device ccid-card-passthru,chardev=charsmartcard0,id=smartcard0,bus=ccid0.0 \
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-sound-device.args b/tests/qemuxml2argvdata/qemuxml2argv-sound-device.args
index 13186627c0..6735182b4c 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-sound-device.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-sound-device.args
@@ -34,5 +34,5 @@ QEMU_AUDIO_DRV=none \
 -device ich9-intel-hda,id=sound7,bus=pci.0,addr=0x8 \
 -device hda-micro,id=sound7-codec0,bus=sound7.0,cad=0 \
 -device hda-duplex,id=sound7-codec1,bus=sound7.0,cad=1 \
--device usb-audio,id=sound8 \
+-device usb-audio,id=sound8,bus=usb.0,port=1 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x9
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-ich9-autoassign.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-ich9-autoassign.args
index 929fa1eb1f..1cda34229b 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-ich9-autoassign.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-ich9-autoassign.args
@@ -24,9 +24,9 @@ server,nowait \
 addr=0x4 \
 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x4.0x1 \
 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x4.0x2 \
--device usb-hub,id=hub0 \
--device usb-hub,id=hub1 \
--device usb-mouse,id=input0 \
--device usb-mouse,id=input1 \
--device usb-mouse,id=input2 \
+-device usb-hub,id=hub0,bus=usb.0,port=1 \
+-device usb-hub,id=hub1,bus=usb.0,port=2 \
+-device usb-mouse,id=input0,bus=usb.0,port=3 \
+-device usb-mouse,id=input1,bus=usb.0,port=4 \
+-device usb-mouse,id=input2,bus=usb.0,port=5 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-port-autoassign.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-port-autoassign.args
index 3515fad195..03803bd48b 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-port-autoassign.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-port-autoassign.args
@@ -21,8 +21,8 @@ server,nowait \
 -boot c \
 -usb \
 -device usb-hub,id=hub0,bus=usb.0,port=1 \
--device usb-hub,id=hub1 \
--device usb-mouse,id=input0 \
--device usb-mouse,id=input1 \
--device usb-mouse,id=input2 \
+-device usb-hub,id=hub1,bus=usb.0,port=2 \
+-device usb-mouse,id=input0,bus=usb.0,port=1.1 \
+-device usb-mouse,id=input1,bus=usb.0,port=1.2 \
+-device usb-mouse,id=input2,bus=usb.0,port=1.3 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-port-missing.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-port-missing.args
index 3b9d9dfcd1..ff743c8975 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-port-missing.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-port-missing.args
@@ -20,7 +20,7 @@ server,nowait \
 -no-acpi \
 -boot c \
 -usb \
--device usb-hub,id=hub0,bus=usb.0 \
--device usb-hub,id=hub1,bus=usb.0 \
+-device usb-hub,id=hub0,bus=usb.0,port=1 \
+-device usb-hub,id=hub1,bus=usb.0,port=2 \
 -device usb-mouse,id=input0,bus=usb.0 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-redir-boot.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-redir-boot.args
index dc878957cf..65c54172c4 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-redir-boot.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-redir-boot.args
@@ -24,7 +24,7 @@ addr=0x4 \
 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x4.0x1 \
 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x4.0x2 \
 -chardev socket,id=charredir0,host=localhost,port=4000 \
--device usb-redir,chardev=charredir0,id=redir0,bootindex=1 \
+-device usb-redir,chardev=charredir0,id=redir0,bootindex=1,bus=usb.0,port=1 \
 -chardev spicevmc,id=charredir1,name=usbredir \
 -device usb-redir,chardev=charredir1,id=redir1,bootindex=2,bus=usb.0,port=4 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args
index 0bb0c5e848..04a7a37f52 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args
@@ -25,7 +25,7 @@ addr=0x4 \
 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x4.0x1 \
 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x4.0x2 \
 -chardev socket,id=charredir0,host=localhost,port=4000 \
--device usb-redir,chardev=charredir0,id=redir0 \
+-device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=1 \
 -chardev spicevmc,id=charredir1,name=usbredir \
 -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=4 \
 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-xhci-autoassign.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-xhci-autoassign.args
index 3034d2190d..abcaeaee91 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-xhci-autoassign.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-xhci-autoassign.args
@@ -20,8 +20,8 @@ server,nowait \
 -no-acpi \
 -boot c \
 -device nec-usb-xhci,p2=8,p3=8,id=usb,bus=pci.0,addr=0x3 \
--device usb-hub,id=hub0 \
--device usb-hub,id=hub1 \
--device usb-mouse,id=input0 \
--device usb-mouse,id=input1 \
--device usb-mouse,id=input2
+-device usb-hub,id=hub0,bus=usb.0,port=1 \
+-device usb-hub,id=hub1,bus=usb.0,port=2 \
+-device usb-mouse,id=input0,bus=usb.0,port=3 \
+-device usb-mouse,id=input1,bus=usb.0,port=4 \
+-device usb-mouse,id=input2,bus=usb.0,port=5