From d4393c42934dd1960c022f77834f3987eb8de5e7 Mon Sep 17 00:00:00 2001
From: Andrea Bolognani <abologna@redhat.com>
Date: Tue, 21 Feb 2017 14:30:39 +0100
Subject: [PATCH] tests: Reduce usage of legacy PCI controllers on PCIe
 machines

Up until a while ago, libvirt would automatically add a legacy
PCI controllers combo (dmi-to-pci-bridge + pci-bridge) to any
PCIe machine type (x86_64/q35 and aarch64/virt).

As a result, a number of input and output files in the test
suite ended up containing the legacy PCI controllers, even
though they are not needed or in any way relevant to the
feature being tested.

Get rid of most of the occurrences. Most of the time, this
just means removing the controllers from the input file and
regenerating the output files; in a few instances, some
minor tweaking is performed on the input file, most notably
removing the memory balloon: as memory balloon support was
not the scope of the test being changed, there is no loss
of test coverage from doing so.

Several occurrences of the legacy PCI controllers remain in
the test suite, both because removing their usage would have
required even more tweaking, and because we still want to
have coverage of this perfectly valid combination.
---
 .../qemuxml2argv-boot-floppy-q35.args         |   5 +-
 .../qemuxml2argv-boot-floppy-q35.xml          |  10 +-
 .../qemuxml2argv-bootindex-floppy-q35.args    |   5 +-
 .../qemuxml2argv-bootindex-floppy-q35.xml     |  10 +-
 .../qemuxml2argv-intel-iommu-machine.args     |   5 +-
 .../qemuxml2argv-intel-iommu-machine.xml      |  13 +-
 .../qemuxml2argv-intel-iommu.args             |   5 +-
 .../qemuxml2argv-intel-iommu.xml              |  13 +-
 ...qemuxml2argv-pcie-expander-bus-bad-bus.xml |  18 +-
 .../qemuxml2argv-pcie-expander-bus.args       | 136 ++++++-----
 .../qemuxml2argv-pcie-expander-bus.xml        |  85 +++----
 .../qemuxml2argv-pcie-root-port-too-many.xml  |   6 +-
 .../qemuxml2argv-pcie-root-port.args          |   6 +-
 .../qemuxml2argv-pcie-root-port.xml           |   6 +-
 ...uxml2argv-pcie-switch-downstream-port.args |  22 +-
 ...muxml2argv-pcie-switch-downstream-port.xml |  18 +-
 ...emuxml2argv-pcie-switch-upstream-port.args |  10 +-
 ...qemuxml2argv-pcie-switch-upstream-port.xml |  10 +-
 .../qemuxml2argv-pcihole64-q35.args           |   2 -
 .../qemuxml2argv-pcihole64-q35.xml            |   2 -
 .../qemuxml2argv-q35-dmi-bad-address1.xml     |   5 +-
 .../qemuxml2argv-q35-dmi-bad-address2.xml     |  21 +-
 .../qemuxml2argv-q35-wrong-root.xml           |   7 -
 tests/qemuxml2argvdata/qemuxml2argv-q35.args  |   2 -
 tests/qemuxml2argvdata/qemuxml2argv-q35.xml   |   7 -
 ...muxml2argv-usb-controller-default-q35.args |   2 -
 ...emuxml2argv-usb-controller-default-q35.xml |   5 -
 ...uxml2argv-usb-controller-explicit-q35.args |   2 -
 ...muxml2argv-usb-controller-explicit-q35.xml |   5 -
 .../qemuxml2argv-vcpu-placement-static.xml    |   6 -
 .../qemuxml2xmlout-intel-iommu.xml            |  13 +-
 .../qemuxml2xmlout-pcie-expander-bus.xml      | 225 +++++++++---------
 .../qemuxml2xmlout-pcie-root-port.xml         |  15 +-
 ...xml2xmlout-pcie-switch-downstream-port.xml |  67 +++---
 ...muxml2xmlout-pcie-switch-upstream-port.xml |  25 +-
 .../qemuxml2xmlout-pcihole64-q35.xml          |   9 -
 .../qemuxml2xmloutdata/qemuxml2xmlout-q35.xml |   9 -
 ...uxml2xmlout-usb-controller-default-q35.xml |   9 -
 ...xml2xmlout-usb-controller-explicit-q35.xml |   9 -
 .../qemuxml2xmlout-vcpu-placement-static.xml  |   9 -
 40 files changed, 303 insertions(+), 536 deletions(-)

diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.args b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.args
index b9c6126967..caaf75892e 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.args
@@ -16,8 +16,5 @@ QEMU_AUDIO_DRV=none \
 -monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \
 -no-acpi \
 -boot a \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x1 \
 -drive file=/tmp/firmware.img,format=raw,if=none,id=drive-fdc0-0-0 \
--device isa-fdc,driveA=drive-fdc0-0-0 \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x3
+-device isa-fdc,driveA=drive-fdc0-0-0
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.xml b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.xml
index 70d3262d32..b94ad85994 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-boot-floppy-q35.xml
@@ -24,17 +24,9 @@
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
     </controller>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
-    </controller>
     <controller type='fdc' index='0'/>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
-    <memballoon model='virtio'>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
-    </memballoon>
+    <memballoon model='none'/>
   </devices>
 </domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.args b/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.args
index 8bcdc1f5d1..10ae65ec9d 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.args
@@ -15,8 +15,5 @@ QEMU_AUDIO_DRV=none \
 -nodefaults \
 -monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \
 -no-acpi \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x1 \
 -drive file=/tmp/firmware.img,format=raw,if=none,id=drive-fdc0-0-0 \
--device isa-fdc,driveA=drive-fdc0-0-0,bootindexA=1 \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x3
+-device isa-fdc,driveA=drive-fdc0-0-0,bootindexA=1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.xml b/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.xml
index 70d3262d32..b94ad85994 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-bootindex-floppy-q35.xml
@@ -24,17 +24,9 @@
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
     </controller>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
-    </controller>
     <controller type='fdc' index='0'/>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
-    <memballoon model='virtio'>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
-    </memballoon>
+    <memballoon model='none'/>
   </devices>
 </domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-machine.args b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-machine.args
index 9221b790de..91e37e32ec 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-machine.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-machine.args
@@ -15,7 +15,4 @@ QEMU_AUDIO_DRV=none \
 -nodefaults \
 -monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \
 -no-acpi \
--boot c \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1
+-boot c
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-machine.xml b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-machine.xml
index b5b2b5158a..de921f6ccb 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-machine.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-machine.xml
@@ -15,23 +15,12 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='2'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
     </controller>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
-    <memballoon model='virtio'>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
-    </memballoon>
+    <memballoon model='none'/>
     <iommu model='intel'/>
   </devices>
 </domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu.args b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu.args
index fc64405ef7..dfc2183bae 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu.args
@@ -16,7 +16,4 @@ QEMU_AUDIO_DRV=none \
 -monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \
 -no-acpi \
 -boot c \
--device intel-iommu \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1
+-device intel-iommu
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu.xml b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu.xml
index b5b2b5158a..de921f6ccb 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu.xml
@@ -15,23 +15,12 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='2'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
     </controller>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
-    <memballoon model='virtio'>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
-    </memballoon>
+    <memballoon model='none'/>
     <iommu model='intel'/>
   </devices>
 </domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus-bad-bus.xml b/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus-bad-bus.xml
index 0305f356a8..4f4b0e68f6 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus-bad-bus.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus-bad-bus.xml
@@ -27,21 +27,9 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-    </controller>
-    <controller type='pci' index='3' model='pcie-root-port'>
-      <target busNr='220'>
-        <node>1</node>
-      </target>
-      <address type='pci' bus='0x00'/>
-    </controller>
-    <controller type='pci' index='4' model='pcie-expander-bus'>
-      <address type='pci' bus='3'/>
+    <controller type='pci' index='1' model='pcie-root-port'/>
+    <controller type='pci' index='2' model='pcie-expander-bus'>
+      <address type='pci' bus='1'/>
     </controller>
     <memballoon model='none'/>
   </devices>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus.args b/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus.args
index 7ce957c32c..92199ee51a 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus.args
@@ -19,106 +19,104 @@ QEMU_AUDIO_DRV=none \
 nowait \
 -no-acpi \
 -boot c \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=56,id=pci.2,bus=pci.1,addr=0x0 \
--device pxb-pcie,bus_nr=254,id=pci.3,numa_node=0,bus=pcie.0,addr=0x4 \
--device ioh3420,port=0x0,chassis=4,id=pci.4,bus=pci.3,addr=0x0 \
--device x3130-upstream,id=pci.5,bus=pci.4,addr=0x0 \
--device xio3130-downstream,port=0x0,chassis=6,id=pci.6,bus=pci.5,addr=0x0 \
--device xio3130-downstream,port=0x1,chassis=7,id=pci.7,bus=pci.5,addr=0x1 \
--device xio3130-downstream,port=0x2,chassis=8,id=pci.8,bus=pci.5,addr=0x2 \
--device xio3130-downstream,port=0x3,chassis=9,id=pci.9,bus=pci.5,addr=0x3 \
--device xio3130-downstream,port=0x4,chassis=10,id=pci.10,bus=pci.5,addr=0x4 \
--device xio3130-downstream,port=0x5,chassis=11,id=pci.11,bus=pci.5,addr=0x5 \
--device xio3130-downstream,port=0x6,chassis=12,id=pci.12,bus=pci.5,addr=0x6 \
--device xio3130-downstream,port=0x7,chassis=13,id=pci.13,bus=pci.5,addr=0x7 \
--device xio3130-downstream,port=0x8,chassis=14,id=pci.14,bus=pci.5,addr=0x8 \
--device xio3130-downstream,port=0x9,chassis=15,id=pci.15,bus=pci.5,addr=0x9 \
--device xio3130-downstream,port=0xa,chassis=16,id=pci.16,bus=pci.5,addr=0xa \
--device xio3130-downstream,port=0xb,chassis=17,id=pci.17,bus=pci.5,addr=0xb \
--device xio3130-downstream,port=0xc,chassis=18,id=pci.18,bus=pci.5,addr=0xc \
--device xio3130-downstream,port=0xd,chassis=19,id=pci.19,bus=pci.5,addr=0xd \
--device xio3130-downstream,port=0xe,chassis=20,id=pci.20,bus=pci.5,addr=0xe \
--device xio3130-downstream,port=0xf,chassis=21,id=pci.21,bus=pci.5,addr=0xf \
--device xio3130-downstream,port=0x10,chassis=22,id=pci.22,bus=pci.5,addr=0x10 \
--device xio3130-downstream,port=0x11,chassis=23,id=pci.23,bus=pci.5,addr=0x11 \
--device xio3130-downstream,port=0x12,chassis=24,id=pci.24,bus=pci.5,addr=0x12 \
--device xio3130-downstream,port=0x13,chassis=25,id=pci.25,bus=pci.5,addr=0x13 \
--device xio3130-downstream,port=0x14,chassis=26,id=pci.26,bus=pci.5,addr=0x14 \
--device xio3130-downstream,port=0x15,chassis=27,id=pci.27,bus=pci.5,addr=0x15 \
--device xio3130-downstream,port=0x16,chassis=28,id=pci.28,bus=pci.5,addr=0x16 \
--device xio3130-downstream,port=0x17,chassis=29,id=pci.29,bus=pci.5,addr=0x17 \
--device xio3130-downstream,port=0x18,chassis=30,id=pci.30,bus=pci.5,addr=0x18 \
--device xio3130-downstream,port=0x19,chassis=31,id=pci.31,bus=pci.5,addr=0x19 \
--device xio3130-downstream,port=0x1a,chassis=32,id=pci.32,bus=pci.5,addr=0x1a \
--device xio3130-downstream,port=0x1b,chassis=33,id=pci.33,bus=pci.5,addr=0x1b \
--device xio3130-downstream,port=0x1c,chassis=34,id=pci.34,bus=pci.5,addr=0x1c \
--device xio3130-downstream,port=0x1d,chassis=35,id=pci.35,bus=pci.5,addr=0x1d \
--device xio3130-downstream,port=0x1e,chassis=36,id=pci.36,bus=pci.5,addr=0x1e \
--device xio3130-downstream,port=0x1f,chassis=37,id=pci.37,bus=pci.5,addr=0x1f \
+-device pxb-pcie,bus_nr=254,id=pci.1,numa_node=0,bus=pcie.0,addr=0x4 \
+-device ioh3420,port=0x0,chassis=2,id=pci.2,bus=pci.1,addr=0x0 \
+-device x3130-upstream,id=pci.3,bus=pci.2,addr=0x0 \
+-device xio3130-downstream,port=0x0,chassis=4,id=pci.4,bus=pci.3,addr=0x0 \
+-device xio3130-downstream,port=0x1,chassis=5,id=pci.5,bus=pci.3,addr=0x1 \
+-device xio3130-downstream,port=0x2,chassis=6,id=pci.6,bus=pci.3,addr=0x2 \
+-device xio3130-downstream,port=0x3,chassis=7,id=pci.7,bus=pci.3,addr=0x3 \
+-device xio3130-downstream,port=0x4,chassis=8,id=pci.8,bus=pci.3,addr=0x4 \
+-device xio3130-downstream,port=0x5,chassis=9,id=pci.9,bus=pci.3,addr=0x5 \
+-device xio3130-downstream,port=0x6,chassis=10,id=pci.10,bus=pci.3,addr=0x6 \
+-device xio3130-downstream,port=0x7,chassis=11,id=pci.11,bus=pci.3,addr=0x7 \
+-device xio3130-downstream,port=0x8,chassis=12,id=pci.12,bus=pci.3,addr=0x8 \
+-device xio3130-downstream,port=0x9,chassis=13,id=pci.13,bus=pci.3,addr=0x9 \
+-device xio3130-downstream,port=0xa,chassis=14,id=pci.14,bus=pci.3,addr=0xa \
+-device xio3130-downstream,port=0xb,chassis=15,id=pci.15,bus=pci.3,addr=0xb \
+-device xio3130-downstream,port=0xc,chassis=16,id=pci.16,bus=pci.3,addr=0xc \
+-device xio3130-downstream,port=0xd,chassis=17,id=pci.17,bus=pci.3,addr=0xd \
+-device xio3130-downstream,port=0xe,chassis=18,id=pci.18,bus=pci.3,addr=0xe \
+-device xio3130-downstream,port=0xf,chassis=19,id=pci.19,bus=pci.3,addr=0xf \
+-device xio3130-downstream,port=0x10,chassis=20,id=pci.20,bus=pci.3,addr=0x10 \
+-device xio3130-downstream,port=0x11,chassis=21,id=pci.21,bus=pci.3,addr=0x11 \
+-device xio3130-downstream,port=0x12,chassis=22,id=pci.22,bus=pci.3,addr=0x12 \
+-device xio3130-downstream,port=0x13,chassis=23,id=pci.23,bus=pci.3,addr=0x13 \
+-device xio3130-downstream,port=0x14,chassis=24,id=pci.24,bus=pci.3,addr=0x14 \
+-device xio3130-downstream,port=0x15,chassis=25,id=pci.25,bus=pci.3,addr=0x15 \
+-device xio3130-downstream,port=0x16,chassis=26,id=pci.26,bus=pci.3,addr=0x16 \
+-device xio3130-downstream,port=0x17,chassis=27,id=pci.27,bus=pci.3,addr=0x17 \
+-device xio3130-downstream,port=0x18,chassis=28,id=pci.28,bus=pci.3,addr=0x18 \
+-device xio3130-downstream,port=0x19,chassis=29,id=pci.29,bus=pci.3,addr=0x19 \
+-device xio3130-downstream,port=0x1a,chassis=30,id=pci.30,bus=pci.3,addr=0x1a \
+-device xio3130-downstream,port=0x1b,chassis=31,id=pci.31,bus=pci.3,addr=0x1b \
+-device xio3130-downstream,port=0x1c,chassis=32,id=pci.32,bus=pci.3,addr=0x1c \
+-device xio3130-downstream,port=0x1d,chassis=33,id=pci.33,bus=pci.3,addr=0x1d \
+-device xio3130-downstream,port=0x1e,chassis=34,id=pci.34,bus=pci.3,addr=0x1e \
+-device xio3130-downstream,port=0x1f,chassis=35,id=pci.35,bus=pci.3,addr=0x1f \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-sata0-0-0 \
 -device ide-drive,bus=ide.0,drive=drive-sata0-0-0,id=sata0-0-0 \
--device rtl8139,vlan=0,id=net0,mac=52:54:00:f1:95:51,bus=pci.6,addr=0x0 \
+-device rtl8139,vlan=0,id=net0,mac=52:54:00:f1:95:51,bus=pci.4,addr=0x0 \
 -net user,vlan=0,name=hostnet0 \
--device e1000,vlan=1,id=net1,mac=52:54:00:5c:c6:1a,bus=pci.7,addr=0x0 \
+-device e1000,vlan=1,id=net1,mac=52:54:00:5c:c6:1a,bus=pci.5,addr=0x0 \
 -net user,vlan=1,name=hostnet1 \
--device e1000,vlan=2,id=net2,mac=52:54:00:39:97:ac,bus=pci.8,addr=0x0 \
+-device e1000,vlan=2,id=net2,mac=52:54:00:39:97:ac,bus=pci.6,addr=0x0 \
 -net user,vlan=2,name=hostnet2 \
--device e1000,vlan=3,id=net3,mac=52:54:00:ee:b9:a8,bus=pci.9,addr=0x0 \
+-device e1000,vlan=3,id=net3,mac=52:54:00:ee:b9:a8,bus=pci.7,addr=0x0 \
 -net user,vlan=3,name=hostnet3 \
--device e1000,vlan=4,id=net4,mac=52:54:00:a9:f7:17,bus=pci.10,addr=0x0 \
+-device e1000,vlan=4,id=net4,mac=52:54:00:a9:f7:17,bus=pci.8,addr=0x0 \
 -net user,vlan=4,name=hostnet4 \
--device e1000,vlan=5,id=net5,mac=52:54:00:df:2b:f3,bus=pci.11,addr=0x0 \
+-device e1000,vlan=5,id=net5,mac=52:54:00:df:2b:f3,bus=pci.9,addr=0x0 \
 -net user,vlan=5,name=hostnet5 \
--device e1000,vlan=6,id=net6,mac=52:54:00:78:94:b4,bus=pci.12,addr=0x0 \
+-device e1000,vlan=6,id=net6,mac=52:54:00:78:94:b4,bus=pci.10,addr=0x0 \
 -net user,vlan=6,name=hostnet6 \
--device e1000,vlan=7,id=net7,mac=52:54:00:6b:9b:06,bus=pci.13,addr=0x0 \
+-device e1000,vlan=7,id=net7,mac=52:54:00:6b:9b:06,bus=pci.11,addr=0x0 \
 -net user,vlan=7,name=hostnet7 \
--device e1000,vlan=8,id=net8,mac=52:54:00:17:df:bc,bus=pci.14,addr=0x0 \
+-device e1000,vlan=8,id=net8,mac=52:54:00:17:df:bc,bus=pci.12,addr=0x0 \
 -net user,vlan=8,name=hostnet8 \
--device e1000,vlan=9,id=net9,mac=52:54:00:3b:d0:51,bus=pci.15,addr=0x0 \
+-device e1000,vlan=9,id=net9,mac=52:54:00:3b:d0:51,bus=pci.13,addr=0x0 \
 -net user,vlan=9,name=hostnet9 \
--device e1000,vlan=10,id=net10,mac=52:54:00:8d:2d:17,bus=pci.16,addr=0x0 \
+-device e1000,vlan=10,id=net10,mac=52:54:00:8d:2d:17,bus=pci.14,addr=0x0 \
 -net user,vlan=10,name=hostnet10 \
--device e1000,vlan=11,id=net11,mac=52:54:00:a7:66:af,bus=pci.17,addr=0x0 \
+-device e1000,vlan=11,id=net11,mac=52:54:00:a7:66:af,bus=pci.15,addr=0x0 \
 -net user,vlan=11,name=hostnet11 \
--device e1000,vlan=12,id=net12,mac=52:54:00:54:ab:d7,bus=pci.18,addr=0x0 \
+-device e1000,vlan=12,id=net12,mac=52:54:00:54:ab:d7,bus=pci.16,addr=0x0 \
 -net user,vlan=12,name=hostnet12 \
--device e1000,vlan=13,id=net13,mac=52:54:00:1f:99:90,bus=pci.19,addr=0x0 \
+-device e1000,vlan=13,id=net13,mac=52:54:00:1f:99:90,bus=pci.17,addr=0x0 \
 -net user,vlan=13,name=hostnet13 \
--device e1000,vlan=14,id=net14,mac=52:54:00:c8:43:87,bus=pci.20,addr=0x0 \
+-device e1000,vlan=14,id=net14,mac=52:54:00:c8:43:87,bus=pci.18,addr=0x0 \
 -net user,vlan=14,name=hostnet14 \
--device e1000,vlan=15,id=net15,mac=52:54:00:df:22:b2,bus=pci.21,addr=0x0 \
+-device e1000,vlan=15,id=net15,mac=52:54:00:df:22:b2,bus=pci.19,addr=0x0 \
 -net user,vlan=15,name=hostnet15 \
--device e1000,vlan=16,id=net16,mac=52:54:00:d2:9a:47,bus=pci.22,addr=0x0 \
+-device e1000,vlan=16,id=net16,mac=52:54:00:d2:9a:47,bus=pci.20,addr=0x0 \
 -net user,vlan=16,name=hostnet16 \
--device e1000,vlan=17,id=net17,mac=52:54:00:86:05:e2,bus=pci.23,addr=0x0 \
+-device e1000,vlan=17,id=net17,mac=52:54:00:86:05:e2,bus=pci.21,addr=0x0 \
 -net user,vlan=17,name=hostnet17 \
--device e1000,vlan=18,id=net18,mac=52:54:00:8c:1c:c2,bus=pci.24,addr=0x0 \
+-device e1000,vlan=18,id=net18,mac=52:54:00:8c:1c:c2,bus=pci.22,addr=0x0 \
 -net user,vlan=18,name=hostnet18 \
--device e1000,vlan=19,id=net19,mac=52:54:00:48:58:92,bus=pci.25,addr=0x0 \
+-device e1000,vlan=19,id=net19,mac=52:54:00:48:58:92,bus=pci.23,addr=0x0 \
 -net user,vlan=19,name=hostnet19 \
--device e1000,vlan=20,id=net20,mac=52:54:00:99:e5:bf,bus=pci.26,addr=0x0 \
+-device e1000,vlan=20,id=net20,mac=52:54:00:99:e5:bf,bus=pci.24,addr=0x0 \
 -net user,vlan=20,name=hostnet20 \
--device e1000,vlan=21,id=net21,mac=52:54:00:b1:8c:25,bus=pci.27,addr=0x0 \
+-device e1000,vlan=21,id=net21,mac=52:54:00:b1:8c:25,bus=pci.25,addr=0x0 \
 -net user,vlan=21,name=hostnet21 \
--device e1000,vlan=22,id=net22,mac=52:54:00:60:e0:d0,bus=pci.28,addr=0x0 \
+-device e1000,vlan=22,id=net22,mac=52:54:00:60:e0:d0,bus=pci.26,addr=0x0 \
 -net user,vlan=22,name=hostnet22 \
--device e1000,vlan=23,id=net23,mac=52:54:00:37:00:6a,bus=pci.29,addr=0x0 \
+-device e1000,vlan=23,id=net23,mac=52:54:00:37:00:6a,bus=pci.27,addr=0x0 \
 -net user,vlan=23,name=hostnet23 \
--device e1000,vlan=24,id=net24,mac=52:54:00:c7:c8:ad,bus=pci.30,addr=0x0 \
+-device e1000,vlan=24,id=net24,mac=52:54:00:c7:c8:ad,bus=pci.28,addr=0x0 \
 -net user,vlan=24,name=hostnet24 \
--device e1000,vlan=25,id=net25,mac=52:54:00:4e:a7:cf,bus=pci.31,addr=0x0 \
+-device e1000,vlan=25,id=net25,mac=52:54:00:4e:a7:cf,bus=pci.29,addr=0x0 \
 -net user,vlan=25,name=hostnet25 \
--device e1000,vlan=26,id=net26,mac=52:54:00:00:79:69,bus=pci.32,addr=0x0 \
+-device e1000,vlan=26,id=net26,mac=52:54:00:00:79:69,bus=pci.30,addr=0x0 \
 -net user,vlan=26,name=hostnet26 \
--device e1000,vlan=27,id=net27,mac=52:54:00:47:00:6f,bus=pci.33,addr=0x0 \
+-device e1000,vlan=27,id=net27,mac=52:54:00:47:00:6f,bus=pci.31,addr=0x0 \
 -net user,vlan=27,name=hostnet27 \
--device e1000,vlan=28,id=net28,mac=52:54:00:2a:8c:8b,bus=pci.34,addr=0x0 \
+-device e1000,vlan=28,id=net28,mac=52:54:00:2a:8c:8b,bus=pci.32,addr=0x0 \
 -net user,vlan=28,name=hostnet28 \
--device e1000,vlan=29,id=net29,mac=52:54:00:ec:d5:e3,bus=pci.35,addr=0x0 \
+-device e1000,vlan=29,id=net29,mac=52:54:00:ec:d5:e3,bus=pci.33,addr=0x0 \
 -net user,vlan=29,name=hostnet29 \
--device e1000,vlan=30,id=net30,mac=52:54:00:7e:6e:c8,bus=pci.36,addr=0x0 \
+-device e1000,vlan=30,id=net30,mac=52:54:00:7e:6e:c8,bus=pci.34,addr=0x0 \
 -net user,vlan=30,name=hostnet30 \
--device e1000,vlan=31,id=net31,mac=52:54:00:7e:6d:c9,bus=pci.37,addr=0x0 \
+-device e1000,vlan=31,id=net31,mac=52:54:00:7e:6d:c9,bus=pci.35,addr=0x0 \
 -net user,vlan=31,name=hostnet31
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus.xml b/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus.xml
index 72681ce730..80f2ea6083 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-expander-bus.xml
@@ -27,29 +27,24 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-    </controller>
-    <controller type='pci' index='3' model='pcie-expander-bus'>
+    <controller type='pci' index='1' model='pcie-expander-bus'>
       <model name='pxb-pcie'/>
       <target busNr='254'>
         <node>0</node>
       </target>
       <address type='pci' bus='0x00' slot='4'/>
     </controller>
-    <controller type='pci' index='4' model='pcie-root-port'>
+    <controller type='pci' index='2' model='pcie-root-port'>
       <target busNr='220'>
         <node>1</node>
       </target>
-      <address type='pci' bus='0x03'/>
+      <address type='pci' bus='0x01'/>
     </controller>
-    <controller type='pci' index='5' model='pcie-switch-upstream-port'>
-      <address type='pci' bus='0x04'/>
+    <controller type='pci' index='3' model='pcie-switch-upstream-port'>
+      <address type='pci' bus='0x02'/>
     </controller>
+    <controller type='pci' index='4' model='pcie-switch-downstream-port'/>
+    <controller type='pci' index='5' model='pcie-switch-downstream-port'/>
     <controller type='pci' index='6' model='pcie-switch-downstream-port'/>
     <controller type='pci' index='7' model='pcie-switch-downstream-port'/>
     <controller type='pci' index='8' model='pcie-switch-downstream-port'/>
@@ -80,167 +75,165 @@
     <controller type='pci' index='33' model='pcie-switch-downstream-port'/>
     <controller type='pci' index='34' model='pcie-switch-downstream-port'/>
     <controller type='pci' index='35' model='pcie-switch-downstream-port'/>
-    <controller type='pci' index='36' model='pcie-switch-downstream-port'/>
-    <controller type='pci' index='37' model='pcie-switch-downstream-port'/>
     <interface type='user'>
       <mac address='52:54:00:f1:95:51'/>
       <model type='rtl8139'/>
-      <address type='pci' bus='6'/>
+      <address type='pci' bus='4'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:5c:c6:1a'/>
       <model type='e1000'/>
-      <address type='pci' bus='07'/>
+      <address type='pci' bus='5'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:39:97:ac'/>
       <model type='e1000'/>
-      <address type='pci' bus='8'/>
+      <address type='pci' bus='6'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:ee:b9:a8'/>
       <model type='e1000'/>
-      <address type='pci' bus='9'/>
+      <address type='pci' bus='7'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:a9:f7:17'/>
       <model type='e1000'/>
-      <address type='pci' bus='10'/>
+      <address type='pci' bus='8'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:df:2b:f3'/>
       <model type='e1000'/>
-      <address type='pci' bus='11'/>
+      <address type='pci' bus='9'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:78:94:b4'/>
       <model type='e1000'/>
-      <address type='pci' bus='12'/>
+      <address type='pci' bus='10'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:6b:9b:06'/>
       <model type='e1000'/>
-      <address type='pci' bus='13'/>
+      <address type='pci' bus='11'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:17:df:bc'/>
       <model type='e1000'/>
-      <address type='pci' bus='14'/>
+      <address type='pci' bus='12'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:3b:d0:51'/>
       <model type='e1000'/>
-      <address type='pci' bus='15'/>
+      <address type='pci' bus='13'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:8d:2d:17'/>
       <model type='e1000'/>
-      <address type='pci' bus='16'/>
+      <address type='pci' bus='14'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:a7:66:af'/>
       <model type='e1000'/>
-      <address type='pci' bus='17'/>
+      <address type='pci' bus='15'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:54:ab:d7'/>
       <model type='e1000'/>
-      <address type='pci' bus='18'/>
+      <address type='pci' bus='16'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:1f:99:90'/>
       <model type='e1000'/>
-      <address type='pci' bus='19'/>
+      <address type='pci' bus='17'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:c8:43:87'/>
       <model type='e1000'/>
-      <address type='pci' bus='20'/>
+      <address type='pci' bus='18'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:df:22:b2'/>
       <model type='e1000'/>
-      <address type='pci' bus='21'/>
+      <address type='pci' bus='19'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:d2:9a:47'/>
       <model type='e1000'/>
-      <address type='pci' bus='22'/>
+      <address type='pci' bus='20'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:86:05:e2'/>
       <model type='e1000'/>
-      <address type='pci' bus='23'/>
+      <address type='pci' bus='21'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:8c:1c:c2'/>
       <model type='e1000'/>
-      <address type='pci' bus='24'/>
+      <address type='pci' bus='22'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:48:58:92'/>
       <model type='e1000'/>
-      <address type='pci' bus='25'/>
+      <address type='pci' bus='23'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:99:e5:bf'/>
       <model type='e1000'/>
-      <address type='pci' bus='26'/>
+      <address type='pci' bus='24'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:b1:8c:25'/>
       <model type='e1000'/>
-      <address type='pci' bus='27'/>
+      <address type='pci' bus='25'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:60:e0:d0'/>
       <model type='e1000'/>
-      <address type='pci' bus='28'/>
+      <address type='pci' bus='26'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:37:00:6a'/>
       <model type='e1000'/>
-      <address type='pci' bus='29'/>
+      <address type='pci' bus='27'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:c7:c8:ad'/>
       <model type='e1000'/>
-      <address type='pci' bus='30'/>
+      <address type='pci' bus='28'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:4e:a7:cf'/>
       <model type='e1000'/>
-      <address type='pci' bus='31'/>
+      <address type='pci' bus='29'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:00:79:69'/>
       <model type='e1000'/>
-      <address type='pci' bus='32'/>
+      <address type='pci' bus='30'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:47:00:6f'/>
       <model type='e1000'/>
-      <address type='pci' bus='33'/>
+      <address type='pci' bus='31'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:2a:8c:8b'/>
       <model type='e1000'/>
-      <address type='pci' bus='34'/>
+      <address type='pci' bus='32'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:ec:d5:e3'/>
       <model type='e1000'/>
-      <address type='pci' bus='35'/>
+      <address type='pci' bus='33'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:7e:6e:c8'/>
       <model type='e1000'/>
-      <address type='pci' bus='36'/>
+      <address type='pci' bus='34'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:7e:6d:c9'/>
       <model type='e1000'/>
-      <address type='pci' bus='37'/>
+      <address type='pci' bus='35'/>
     </interface>
     <memballoon model='none'/>
   </devices>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port-too-many.xml b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port-too-many.xml
index 98be1cdba0..5234e3b132 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port-too-many.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port-too-many.xml
@@ -20,8 +20,8 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'/>
-    <controller type='pci' index='2' model='pci-bridge'/>
+    <controller type='pci' index='1' model='pcie-root-port'/>
+    <controller type='pci' index='2' model='pcie-root-port'/>
     <controller type='pci' index='3' model='pcie-root-port'/>
     <controller type='pci' index='4' model='pcie-root-port'/>
     <controller type='pci' index='5' model='pcie-root-port'/>
@@ -49,8 +49,6 @@
     <controller type='pci' index='27' model='pcie-root-port'/>
     <controller type='pci' index='28' model='pcie-root-port'/>
     <controller type='pci' index='29' model='pcie-root-port'/>
-    <controller type='pci' index='30' model='pcie-root-port'/>
-    <controller type='pci' index='31' model='pcie-root-port'/>
     <controller type='sata' index='0'/>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.args b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.args
index 9a71281b3c..4e852ff8ee 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.args
@@ -16,11 +16,9 @@ QEMU_AUDIO_DRV=none \
 -monitor unix:/tmp/lib/domain--1-q35-test/monitor.sock,server,nowait \
 -no-acpi \
 -boot c \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device ioh3420,port=0x10,chassis=3,id=pci.3,bus=pcie.0,multifunction=on,\
+-device ioh3420,port=0x10,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,\
 addr=0x2 \
--device ioh3420,port=0x1a,chassis=40,id=pci.4,bus=pcie.0,addr=0x2.0x1 \
+-device ioh3420,port=0x1a,chassis=40,id=pci.2,bus=pcie.0,addr=0x2.0x1 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-sata0-0-0 \
 -device ide-drive,bus=ide.0,drive=drive-sata0-0-0,id=sata0-0-0 \
 -device qxl-vga,id=video0,ram_size=67108864,vram_size=33554432,bus=pcie.0,\
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.xml b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.xml
index 795f8ddcbe..7ecc4a6812 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-root-port.xml
@@ -20,10 +20,8 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'/>
-    <controller type='pci' index='2' model='pci-bridge'/>
-    <controller type='pci' index='3' model='pcie-root-port'/>
-    <controller type='pci' index='4' model='pcie-root-port'>
+    <controller type='pci' index='1' model='pcie-root-port'/>
+    <controller type='pci' index='2' model='pcie-root-port'>
       <model name='ioh3420'/>
       <target chassis='40' port='0x1a'/>
     </controller>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-downstream-port.args b/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-downstream-port.args
index 3b3e80dff6..1102b38f0a 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-downstream-port.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-downstream-port.args
@@ -16,18 +16,16 @@ QEMU_AUDIO_DRV=none \
 -monitor unix:/tmp/lib/domain--1-q35-test/monitor.sock,server,nowait \
 -no-acpi \
 -boot c \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device ioh3420,port=0x10,chassis=3,id=pci.3,bus=pcie.0,addr=0x2 \
--device x3130-upstream,id=pci.4,bus=pci.3,addr=0x0 \
--device xio3130-downstream,port=0x0,chassis=5,id=pci.5,bus=pci.4,addr=0x0 \
--device xio3130-downstream,port=0x1,chassis=6,id=pci.6,bus=pci.4,addr=0x1 \
--device xio3130-downstream,port=0x2,chassis=7,id=pci.7,bus=pci.4,addr=0x2 \
--device xio3130-downstream,port=0x27,chassis=30,id=pci.8,bus=pci.4,addr=0x3 \
--device x3130-upstream,id=pci.9,bus=pci.5,addr=0x0 \
--device xio3130-downstream,port=0x4,chassis=10,id=pci.10,bus=pci.4,addr=0x4 \
--device xio3130-downstream,port=0x5,chassis=11,id=pci.11,bus=pci.4,addr=0x5 \
--device xio3130-downstream,port=0x6,chassis=12,id=pci.12,bus=pci.4,addr=0x6 \
+-device ioh3420,port=0x10,chassis=1,id=pci.1,bus=pcie.0,addr=0x2 \
+-device x3130-upstream,id=pci.2,bus=pci.1,addr=0x0 \
+-device xio3130-downstream,port=0x0,chassis=3,id=pci.3,bus=pci.2,addr=0x0 \
+-device xio3130-downstream,port=0x1,chassis=4,id=pci.4,bus=pci.2,addr=0x1 \
+-device xio3130-downstream,port=0x2,chassis=5,id=pci.5,bus=pci.2,addr=0x2 \
+-device xio3130-downstream,port=0x27,chassis=30,id=pci.6,bus=pci.2,addr=0x3 \
+-device x3130-upstream,id=pci.7,bus=pci.3,addr=0x0 \
+-device xio3130-downstream,port=0x4,chassis=8,id=pci.8,bus=pci.2,addr=0x4 \
+-device xio3130-downstream,port=0x5,chassis=9,id=pci.9,bus=pci.2,addr=0x5 \
+-device xio3130-downstream,port=0x6,chassis=10,id=pci.10,bus=pci.2,addr=0x6 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-sata0-0-0 \
 -device ide-drive,bus=ide.0,drive=drive-sata0-0-0,id=sata0-0-0 \
 -device qxl-vga,id=video0,ram_size=67108864,vram_size=33554432,bus=pcie.0,\
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-downstream-port.xml b/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-downstream-port.xml
index b781675844..578cc87839 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-downstream-port.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-downstream-port.xml
@@ -20,21 +20,19 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'/>
-    <controller type='pci' index='2' model='pci-bridge'/>
-    <controller type='pci' index='3' model='pcie-root-port'/>
-    <controller type='pci' index='4' model='pcie-switch-upstream-port'/>
+    <controller type='pci' index='1' model='pcie-root-port'/>
+    <controller type='pci' index='2' model='pcie-switch-upstream-port'/>
+    <controller type='pci' index='3' model='pcie-switch-downstream-port'/>
+    <controller type='pci' index='4' model='pcie-switch-downstream-port'/>
     <controller type='pci' index='5' model='pcie-switch-downstream-port'/>
-    <controller type='pci' index='6' model='pcie-switch-downstream-port'/>
-    <controller type='pci' index='7' model='pcie-switch-downstream-port'/>
-    <controller type='pci' index='8' model='pcie-switch-downstream-port'>
+    <controller type='pci' index='6' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
       <target chassis='30' port='0x27'/>
     </controller>
-    <controller type='pci' index='9' model='pcie-switch-upstream-port'/>
+    <controller type='pci' index='7' model='pcie-switch-upstream-port'/>
+    <controller type='pci' index='8' model='pcie-switch-downstream-port'/>
+    <controller type='pci' index='9' model='pcie-switch-downstream-port'/>
     <controller type='pci' index='10' model='pcie-switch-downstream-port'/>
-    <controller type='pci' index='11' model='pcie-switch-downstream-port'/>
-    <controller type='pci' index='12' model='pcie-switch-downstream-port'/>
     <controller type='sata' index='0'/>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-upstream-port.args b/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-upstream-port.args
index 10aedd5823..05db65b029 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-upstream-port.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-upstream-port.args
@@ -16,13 +16,11 @@ QEMU_AUDIO_DRV=none \
 -monitor unix:/tmp/lib/domain--1-q35-test/monitor.sock,server,nowait \
 -no-acpi \
 -boot c \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device ioh3420,port=0x10,chassis=3,id=pci.3,bus=pcie.0,multifunction=on,\
+-device ioh3420,port=0x10,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,\
 addr=0x2 \
--device ioh3420,port=0x11,chassis=4,id=pci.4,bus=pcie.0,addr=0x2.0x1 \
--device x3130-upstream,id=pci.5,bus=pci.3,addr=0x0 \
--device x3130-upstream,id=pci.6,bus=pci.4,addr=0x0 \
+-device ioh3420,port=0x11,chassis=2,id=pci.2,bus=pcie.0,addr=0x2.0x1 \
+-device x3130-upstream,id=pci.3,bus=pci.1,addr=0x0 \
+-device x3130-upstream,id=pci.4,bus=pci.2,addr=0x0 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-sata0-0-0 \
 -device ide-drive,bus=ide.0,drive=drive-sata0-0-0,id=sata0-0-0 \
 -device qxl-vga,id=video0,ram_size=67108864,vram_size=33554432,bus=pcie.0,\
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-upstream-port.xml b/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-upstream-port.xml
index 4205f8a473..4caf229626 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-upstream-port.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcie-switch-upstream-port.xml
@@ -20,12 +20,10 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'/>
-    <controller type='pci' index='2' model='pci-bridge'/>
-    <controller type='pci' index='3' model='pcie-root-port'/>
-    <controller type='pci' index='4' model='pcie-root-port'/>
-    <controller type='pci' index='5' model='pcie-switch-upstream-port'/>
-    <controller type='pci' index='6' model='pcie-switch-upstream-port'>
+    <controller type='pci' index='1' model='pcie-root-port'/>
+    <controller type='pci' index='2' model='pcie-root-port'/>
+    <controller type='pci' index='3' model='pcie-switch-upstream-port'/>
+    <controller type='pci' index='4' model='pcie-switch-upstream-port'>
       <model name='x3130-upstream'/>
     </controller>
     <controller type='sata' index='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcihole64-q35.args b/tests/qemuxml2argvdata/qemuxml2argv-pcihole64-q35.args
index ee9f6999ca..179a7c5792 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcihole64-q35.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcihole64-q35.args
@@ -17,8 +17,6 @@ QEMU_AUDIO_DRV=none \
 -no-acpi \
 -boot c \
 -global q35-pcihost.pci-hole64-size=1048576K \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-sata0-0-0 \
 -device ide-drive,bus=ide.0,drive=drive-sata0-0-0,id=sata0-0-0 \
 -device qxl-vga,id=video0,ram_size=67108864,vram_size=33554432,bus=pcie.0,\
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pcihole64-q35.xml b/tests/qemuxml2argvdata/qemuxml2argv-pcihole64-q35.xml
index a967bf48c0..9367384ebd 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-pcihole64-q35.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pcihole64-q35.xml
@@ -22,8 +22,6 @@
     <controller type='pci' index='0' model='pcie-root'>
       <pcihole64 unit='KiB'>1048576</pcihole64>
     </controller>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'/>
-    <controller type='pci' index='2' model='pci-bridge'/>
     <controller type='sata' index='0'/>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-q35-dmi-bad-address1.xml b/tests/qemuxml2argvdata/qemuxml2argv-q35-dmi-bad-address1.xml
index e23c87434f..05e23d905e 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-q35-dmi-bad-address1.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-q35-dmi-bad-address1.xml
@@ -22,9 +22,8 @@
       <model name='pci-bridge'/>
       <target chassisNr='56'/>
     </controller>
-    <controller type='pci' index='3' model='pcie-root-port'/>
-    <controller type='pci' index='4' model='dmi-to-pci-bridge'>
-      <address type='pci' bus='2' slot='3'/>
+    <controller type='pci' index='2' model='dmi-to-pci-bridge'>
+      <address type='pci' bus='2'/>
     </controller>
     <memballoon model='none'/>
   </devices>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-q35-dmi-bad-address2.xml b/tests/qemuxml2argvdata/qemuxml2argv-q35-dmi-bad-address2.xml
index c3c1b6aa3c..7796e52d03 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-q35-dmi-bad-address2.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-q35-dmi-bad-address2.xml
@@ -14,26 +14,11 @@
   <on_crash>destroy</on_crash>
   <devices>
     <emulator>/usr/libexec/qemu-kvm</emulator>
-    <disk type='block' device='disk'>
-      <source dev='/dev/HostVG/QEMUGuest1'/>
-      <target dev='sda' bus='sata'/>
-      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
-    </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
+    <controller type='pci' index='1' model='pcie-root-port'/>
+    <controller type='pci' index='2' model='dmi-to-pci-bridge'>
+      <address type='pci' bus='1'/>
     </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-    </controller>
-    <controller type='pci' index='3' model='pcie-root-port'/>
-    <controller type='pci' index='4' model='dmi-to-pci-bridge'>
-      <address type='pci' bus='3'/>
-    </controller>
-    <video>
-      <model type='qxl' ram='65536' vram='32768' vgamem='8192' heads='1'/>
-    </video>
     <memballoon model='none'/>
   </devices>
 </domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-q35-wrong-root.xml b/tests/qemuxml2argvdata/qemuxml2argv-q35-wrong-root.xml
index 836de52a0c..8d9f27d4fa 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-q35-wrong-root.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-q35-wrong-root.xml
@@ -15,13 +15,6 @@
   <devices>
     <emulator>/usr/bin/qemu-kvm</emulator>
     <controller type='pci' index='0' model='pci-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-    </controller>
     <memballoon model='none'/>
   </devices>
 </domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-q35.args b/tests/qemuxml2argvdata/qemuxml2argv-q35.args
index 733a4dc51c..e572e8cd13 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-q35.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-q35.args
@@ -16,8 +16,6 @@ QEMU_AUDIO_DRV=none \
 -monitor unix:/tmp/lib/domain--1-q35-test/monitor.sock,server,nowait \
 -no-acpi \
 -boot c \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=56,id=pci.2,bus=pci.1,addr=0x0 \
 -device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,\
 addr=0x1d \
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-q35.xml b/tests/qemuxml2argvdata/qemuxml2argv-q35.xml
index 0c3da859ef..85e72cd75b 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-q35.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-q35.xml
@@ -20,13 +20,6 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-    </controller>
     <video>
       <model type='qxl' ram='65536' vram='32768' vgamem='8192' heads='1'/>
     </video>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-default-q35.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-default-q35.args
index f45400d575..36237d6454 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-default-q35.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-default-q35.args
@@ -16,6 +16,4 @@ QEMU_AUDIO_DRV=none \
 -monitor unix:/tmp/lib/domain--1-q35-test/monitor.sock,server,nowait \
 -no-acpi \
 -boot c \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=56,id=pci.2,bus=pci.1,addr=0x0 \
 -device piix3-usb-uhci,id=usb,bus=pcie.0,addr=0x1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-default-q35.xml b/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-default-q35.xml
index 5f949d67ec..9c2a2341ab 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-default-q35.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-default-q35.xml
@@ -15,11 +15,6 @@
   <devices>
     <emulator>/usr/libexec/qemu-kvm</emulator>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'/>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-    </controller>
     <controller type='usb' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
     </controller>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-explicit-q35.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-explicit-q35.args
index 92a4ee3c8d..6ea531fb6f 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-explicit-q35.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-explicit-q35.args
@@ -16,6 +16,4 @@ QEMU_AUDIO_DRV=none \
 -monitor unix:/tmp/lib/domain--1-q35-test/monitor.sock,server,nowait \
 -no-acpi \
 -boot c \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=56,id=pci.2,bus=pci.1,addr=0x0 \
 -device nec-usb-xhci,id=usb,bus=pcie.0,addr=0x1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-explicit-q35.xml b/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-explicit-q35.xml
index f6d95b4333..c0827f298d 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-explicit-q35.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-controller-explicit-q35.xml
@@ -15,11 +15,6 @@
   <devices>
     <emulator>/usr/libexec/qemu-kvm</emulator>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'/>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-    </controller>
     <controller type='usb' index='0' model='nec-xhci'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
     </controller>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-vcpu-placement-static.xml b/tests/qemuxml2argvdata/qemuxml2argv-vcpu-placement-static.xml
index 9cd00c0d36..a777f50f86 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-vcpu-placement-static.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-vcpu-placement-static.xml
@@ -26,12 +26,6 @@
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
     </controller>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
-    </controller>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
     <memballoon model='none'/>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu.xml
index b5b2b5158a..de921f6ccb 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu.xml
@@ -15,23 +15,12 @@
   <devices>
     <emulator>/usr/bin/qemu</emulator>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='2'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
     </controller>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
-    <memballoon model='virtio'>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
-    </memballoon>
+    <memballoon model='none'/>
     <iommu model='intel'/>
   </devices>
 </domain>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-expander-bus.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-expander-bus.xml
index 7a37870e43..377ced2758 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-expander-bus.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-expander-bus.xml
@@ -27,192 +27,183 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
-    <controller type='pci' index='3' model='pcie-expander-bus'>
+    <controller type='pci' index='1' model='pcie-expander-bus'>
       <model name='pxb-pcie'/>
       <target busNr='254'>
         <node>0</node>
       </target>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
     </controller>
-    <controller type='pci' index='4' model='pcie-root-port'>
+    <controller type='pci' index='2' model='pcie-root-port'>
       <model name='ioh3420'/>
-      <target chassis='4' port='0x0' busNr='220'>
+      <target chassis='2' port='0x0' busNr='220'>
         <node>1</node>
       </target>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+    </controller>
+    <controller type='pci' index='3' model='pcie-switch-upstream-port'>
+      <model name='x3130-upstream'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
+    </controller>
+    <controller type='pci' index='4' model='pcie-switch-downstream-port'>
+      <model name='xio3130-downstream'/>
+      <target chassis='4' port='0x0'/>
       <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
     </controller>
-    <controller type='pci' index='5' model='pcie-switch-upstream-port'>
-      <model name='x3130-upstream'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
+    <controller type='pci' index='5' model='pcie-switch-downstream-port'>
+      <model name='xio3130-downstream'/>
+      <target chassis='5' port='0x1'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x01' function='0x0'/>
     </controller>
     <controller type='pci' index='6' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='6' port='0x0'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
+      <target chassis='6' port='0x2'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x02' function='0x0'/>
     </controller>
     <controller type='pci' index='7' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='7' port='0x1'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x01' function='0x0'/>
+      <target chassis='7' port='0x3'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x03' function='0x0'/>
     </controller>
     <controller type='pci' index='8' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='8' port='0x2'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x02' function='0x0'/>
+      <target chassis='8' port='0x4'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x04' function='0x0'/>
     </controller>
     <controller type='pci' index='9' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='9' port='0x3'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x03' function='0x0'/>
+      <target chassis='9' port='0x5'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x05' function='0x0'/>
     </controller>
     <controller type='pci' index='10' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='10' port='0x4'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x04' function='0x0'/>
+      <target chassis='10' port='0x6'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x06' function='0x0'/>
     </controller>
     <controller type='pci' index='11' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='11' port='0x5'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x05' function='0x0'/>
+      <target chassis='11' port='0x7'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x07' function='0x0'/>
     </controller>
     <controller type='pci' index='12' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='12' port='0x6'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x06' function='0x0'/>
+      <target chassis='12' port='0x8'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x08' function='0x0'/>
     </controller>
     <controller type='pci' index='13' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='13' port='0x7'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x07' function='0x0'/>
+      <target chassis='13' port='0x9'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x09' function='0x0'/>
     </controller>
     <controller type='pci' index='14' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='14' port='0x8'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x08' function='0x0'/>
+      <target chassis='14' port='0xa'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x0a' function='0x0'/>
     </controller>
     <controller type='pci' index='15' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='15' port='0x9'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x09' function='0x0'/>
+      <target chassis='15' port='0xb'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x0b' function='0x0'/>
     </controller>
     <controller type='pci' index='16' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='16' port='0xa'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x0a' function='0x0'/>
+      <target chassis='16' port='0xc'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x0c' function='0x0'/>
     </controller>
     <controller type='pci' index='17' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='17' port='0xb'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x0b' function='0x0'/>
+      <target chassis='17' port='0xd'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x0d' function='0x0'/>
     </controller>
     <controller type='pci' index='18' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='18' port='0xc'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x0c' function='0x0'/>
+      <target chassis='18' port='0xe'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x0e' function='0x0'/>
     </controller>
     <controller type='pci' index='19' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='19' port='0xd'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x0d' function='0x0'/>
+      <target chassis='19' port='0xf'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x0f' function='0x0'/>
     </controller>
     <controller type='pci' index='20' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='20' port='0xe'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x0e' function='0x0'/>
+      <target chassis='20' port='0x10'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x10' function='0x0'/>
     </controller>
     <controller type='pci' index='21' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='21' port='0xf'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x0f' function='0x0'/>
+      <target chassis='21' port='0x11'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x11' function='0x0'/>
     </controller>
     <controller type='pci' index='22' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='22' port='0x10'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x10' function='0x0'/>
+      <target chassis='22' port='0x12'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x12' function='0x0'/>
     </controller>
     <controller type='pci' index='23' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='23' port='0x11'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x11' function='0x0'/>
+      <target chassis='23' port='0x13'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x13' function='0x0'/>
     </controller>
     <controller type='pci' index='24' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='24' port='0x12'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x12' function='0x0'/>
+      <target chassis='24' port='0x14'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x14' function='0x0'/>
     </controller>
     <controller type='pci' index='25' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='25' port='0x13'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x13' function='0x0'/>
+      <target chassis='25' port='0x15'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x15' function='0x0'/>
     </controller>
     <controller type='pci' index='26' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='26' port='0x14'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x14' function='0x0'/>
+      <target chassis='26' port='0x16'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x16' function='0x0'/>
     </controller>
     <controller type='pci' index='27' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='27' port='0x15'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x15' function='0x0'/>
+      <target chassis='27' port='0x17'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x17' function='0x0'/>
     </controller>
     <controller type='pci' index='28' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='28' port='0x16'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x16' function='0x0'/>
+      <target chassis='28' port='0x18'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x18' function='0x0'/>
     </controller>
     <controller type='pci' index='29' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='29' port='0x17'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x17' function='0x0'/>
+      <target chassis='29' port='0x19'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x19' function='0x0'/>
     </controller>
     <controller type='pci' index='30' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='30' port='0x18'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x18' function='0x0'/>
+      <target chassis='30' port='0x1a'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x1a' function='0x0'/>
     </controller>
     <controller type='pci' index='31' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='31' port='0x19'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x19' function='0x0'/>
+      <target chassis='31' port='0x1b'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x1b' function='0x0'/>
     </controller>
     <controller type='pci' index='32' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='32' port='0x1a'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x1a' function='0x0'/>
+      <target chassis='32' port='0x1c'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x1c' function='0x0'/>
     </controller>
     <controller type='pci' index='33' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='33' port='0x1b'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x1b' function='0x0'/>
+      <target chassis='33' port='0x1d'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x1d' function='0x0'/>
     </controller>
     <controller type='pci' index='34' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='34' port='0x1c'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x1c' function='0x0'/>
+      <target chassis='34' port='0x1e'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x1e' function='0x0'/>
     </controller>
     <controller type='pci' index='35' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='35' port='0x1d'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x1d' function='0x0'/>
-    </controller>
-    <controller type='pci' index='36' model='pcie-switch-downstream-port'>
-      <model name='xio3130-downstream'/>
-      <target chassis='36' port='0x1e'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='37' model='pcie-switch-downstream-port'>
-      <model name='xio3130-downstream'/>
-      <target chassis='37' port='0x1f'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x1f' function='0x0'/>
+      <target chassis='35' port='0x1f'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x1f' function='0x0'/>
     </controller>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
@@ -220,162 +211,162 @@
     <interface type='user'>
       <mac address='52:54:00:f1:95:51'/>
       <model type='rtl8139'/>
-      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:5c:c6:1a'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x07' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:39:97:ac'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x08' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:ee:b9:a8'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x09' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x07' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:a9:f7:17'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x0a' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x08' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:df:2b:f3'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x0b' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x09' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:78:94:b4'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x0c' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x0a' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:6b:9b:06'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x0d' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x0b' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:17:df:bc'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x0e' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x0c' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:3b:d0:51'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x0f' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x0d' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:8d:2d:17'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x10' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x0e' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:a7:66:af'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x0f' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:54:ab:d7'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x12' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x10' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:1f:99:90'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x13' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x11' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:c8:43:87'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x14' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x12' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:df:22:b2'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x15' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x13' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:d2:9a:47'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x16' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x14' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:86:05:e2'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x17' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x15' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:8c:1c:c2'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x18' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x16' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:48:58:92'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x19' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x17' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:99:e5:bf'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x1a' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x18' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:b1:8c:25'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x1b' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x19' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:60:e0:d0'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x1c' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x1a' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:37:00:6a'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x1d' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x1b' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:c7:c8:ad'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x1e' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x1c' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:4e:a7:cf'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x1f' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x1d' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:00:79:69'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x20' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x1e' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:47:00:6f'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x21' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x1f' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:2a:8c:8b'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x22' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x20' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:ec:d5:e3'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x23' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x21' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:7e:6e:c8'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x24' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x22' slot='0x00' function='0x0'/>
     </interface>
     <interface type='user'>
       <mac address='52:54:00:7e:6d:c9'/>
       <model type='e1000'/>
-      <address type='pci' domain='0x0000' bus='0x25' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x23' slot='0x00' function='0x0'/>
     </interface>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-root-port.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-root-port.xml
index 5c1ebef59b..5775eb91d2 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-root-port.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-root-port.xml
@@ -20,21 +20,12 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='2'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
-    <controller type='pci' index='3' model='pcie-root-port'>
+    <controller type='pci' index='1' model='pcie-root-port'>
       <model name='ioh3420'/>
-      <target chassis='3' port='0x10'/>
+      <target chassis='1' port='0x10'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/>
     </controller>
-    <controller type='pci' index='4' model='pcie-root-port'>
+    <controller type='pci' index='2' model='pcie-root-port'>
       <model name='ioh3420'/>
       <target chassis='40' port='0x1a'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-switch-downstream-port.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-switch-downstream-port.xml
index beb6ca8cf0..a80316c31a 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-switch-downstream-port.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-switch-downstream-port.xml
@@ -20,62 +20,53 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='2'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
-    <controller type='pci' index='3' model='pcie-root-port'>
+    <controller type='pci' index='1' model='pcie-root-port'>
       <model name='ioh3420'/>
-      <target chassis='3' port='0x10'/>
+      <target chassis='1' port='0x10'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
     </controller>
-    <controller type='pci' index='4' model='pcie-switch-upstream-port'>
+    <controller type='pci' index='2' model='pcie-switch-upstream-port'>
       <model name='x3130-upstream'/>
-      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+    </controller>
+    <controller type='pci' index='3' model='pcie-switch-downstream-port'>
+      <model name='xio3130-downstream'/>
+      <target chassis='3' port='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
+    </controller>
+    <controller type='pci' index='4' model='pcie-switch-downstream-port'>
+      <model name='xio3130-downstream'/>
+      <target chassis='4' port='0x1'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
     </controller>
     <controller type='pci' index='5' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='5' port='0x0'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
+      <target chassis='5' port='0x2'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x02' function='0x0'/>
     </controller>
     <controller type='pci' index='6' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='6' port='0x1'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x01' function='0x0'/>
+      <target chassis='30' port='0x27'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
     </controller>
-    <controller type='pci' index='7' model='pcie-switch-downstream-port'>
-      <model name='xio3130-downstream'/>
-      <target chassis='7' port='0x2'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
+    <controller type='pci' index='7' model='pcie-switch-upstream-port'>
+      <model name='x3130-upstream'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
     </controller>
     <controller type='pci' index='8' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='30' port='0x27'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x03' function='0x0'/>
+      <target chassis='8' port='0x4'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x04' function='0x0'/>
     </controller>
-    <controller type='pci' index='9' model='pcie-switch-upstream-port'>
-      <model name='x3130-upstream'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
+    <controller type='pci' index='9' model='pcie-switch-downstream-port'>
+      <model name='xio3130-downstream'/>
+      <target chassis='9' port='0x5'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x05' function='0x0'/>
     </controller>
     <controller type='pci' index='10' model='pcie-switch-downstream-port'>
       <model name='xio3130-downstream'/>
-      <target chassis='10' port='0x4'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x04' function='0x0'/>
-    </controller>
-    <controller type='pci' index='11' model='pcie-switch-downstream-port'>
-      <model name='xio3130-downstream'/>
-      <target chassis='11' port='0x5'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x05' function='0x0'/>
-    </controller>
-    <controller type='pci' index='12' model='pcie-switch-downstream-port'>
-      <model name='xio3130-downstream'/>
-      <target chassis='12' port='0x6'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x06' function='0x0'/>
+      <target chassis='10' port='0x6'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x06' function='0x0'/>
     </controller>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-switch-upstream-port.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-switch-upstream-port.xml
index f35ebf7a4d..b35be3c75d 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-switch-upstream-port.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcie-switch-upstream-port.xml
@@ -20,32 +20,23 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='2'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
-    <controller type='pci' index='3' model='pcie-root-port'>
+    <controller type='pci' index='1' model='pcie-root-port'>
       <model name='ioh3420'/>
-      <target chassis='3' port='0x10'/>
+      <target chassis='1' port='0x10'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/>
     </controller>
-    <controller type='pci' index='4' model='pcie-root-port'>
+    <controller type='pci' index='2' model='pcie-root-port'>
       <model name='ioh3420'/>
-      <target chassis='4' port='0x11'/>
+      <target chassis='2' port='0x11'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
     </controller>
-    <controller type='pci' index='5' model='pcie-switch-upstream-port'>
+    <controller type='pci' index='3' model='pcie-switch-upstream-port'>
       <model name='x3130-upstream'/>
-      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
     </controller>
-    <controller type='pci' index='6' model='pcie-switch-upstream-port'>
+    <controller type='pci' index='4' model='pcie-switch-upstream-port'>
       <model name='x3130-upstream'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
     </controller>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcihole64-q35.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcihole64-q35.xml
index dad7d1a4fb..03a4e8e9e0 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcihole64-q35.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pcihole64-q35.xml
@@ -22,15 +22,6 @@
     <controller type='pci' index='0' model='pcie-root'>
       <pcihole64 unit='KiB'>1048576</pcihole64>
     </controller>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='2'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
     </controller>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-q35.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-q35.xml
index 58c7fab396..e3d4fa0826 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-q35.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-q35.xml
@@ -20,15 +20,6 @@
       <address type='drive' controller='0' bus='0' target='0' unit='0'/>
     </disk>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
     <controller type='usb' index='0' model='ich9-ehci1'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x7'/>
     </controller>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-default-q35.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-default-q35.xml
index 456fd54bc9..b4f94b6f34 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-default-q35.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-default-q35.xml
@@ -15,15 +15,6 @@
   <devices>
     <emulator>/usr/libexec/qemu-kvm</emulator>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
     <controller type='usb' index='0' model='piix3-uhci'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
     </controller>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-explicit-q35.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-explicit-q35.xml
index db92c22e75..8baaee4d9b 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-explicit-q35.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-explicit-q35.xml
@@ -15,15 +15,6 @@
   <devices>
     <emulator>/usr/libexec/qemu-kvm</emulator>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='56'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
-    </controller>
     <controller type='usb' index='0' model='nec-xhci'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
     </controller>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-vcpu-placement-static.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-vcpu-placement-static.xml
index c6471e3a07..a777f50f86 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-vcpu-placement-static.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-vcpu-placement-static.xml
@@ -26,15 +26,6 @@
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
     </controller>
     <controller type='pci' index='0' model='pcie-root'/>
-    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
-      <model name='i82801b11-bridge'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
-    </controller>
-    <controller type='pci' index='2' model='pci-bridge'>
-      <model name='pci-bridge'/>
-      <target chassisNr='2'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
-    </controller>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
     <memballoon model='none'/>