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[libvirt] [PATCH 20/26] tests: Add baseline tests for automatic PHB usage



These tests demonstrate that, while it's now possible for the
user to create PHB explicitly and manually assign devices to
them, libvirt still defaults to extending the guest PCI
topology using PCI bridges and making suboptimal device
placement choices.

The next few commits will improve on these behaviors and the
tests outputs will automatically be updated to reflect this.
---
 .../qemuxml2argv-pseries-hostdev.args              |  23 ++++
 .../qemuxml2argv-pseries-hostdev.xml               |  33 ++++++
 .../qemuxml2argv-pseries-many-buses-1.args         |  22 ++++
 .../qemuxml2argv-pseries-many-buses-1.xml          |  20 ++++
 .../qemuxml2argv-pseries-many-buses-2.args         |  22 ++++
 .../qemuxml2argv-pseries-many-buses-2.xml          |  18 +++
 .../qemuxml2argv-pseries-many-devices.args         |  53 +++++++++
 .../qemuxml2argv-pseries-many-devices.xml          |  49 ++++++++
 tests/qemuxml2argvtest.c                           |  21 ++++
 .../qemuxml2xmlout-pseries-hostdev.xml             |  46 ++++++++
 .../qemuxml2xmlout-pseries-many-buses-1.xml        |  33 ++++++
 .../qemuxml2xmlout-pseries-many-buses-2.xml        |  34 ++++++
 .../qemuxml2xmlout-pseries-many-devices.xml        | 126 +++++++++++++++++++++
 tests/qemuxml2xmltest.c                            |  21 ++++
 14 files changed, 521 insertions(+)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-hostdev.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-hostdev.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-1.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-1.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-2.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-2.xml
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-many-devices.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-pseries-many-devices.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-hostdev.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-buses-1.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-buses-2.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-devices.xml

diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-hostdev.args b/tests/qemuxml2argvdata/qemuxml2argv-pseries-hostdev.args
new file mode 100644
index 0000000..dbd2964
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-hostdev.args
@@ -0,0 +1,23 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-ppc64 \
+-name guest \
+-S \
+-M pseries \
+-m 512 \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-nographic \
+-nodefconfig \
+-nodefaults \
+-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-guest/monitor.sock,\
+server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=readline \
+-boot c \
+-device vfio-pci,host=0001:01:00.0,id=hostdev0,bus=pci.0,addr=0x1 \
+-device vfio-pci,host=0005:90:01.2,id=hostdev1,bus=pci.0,addr=0x2 \
+-device vfio-pci,host=0001:01:00.1,id=hostdev2,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-hostdev.xml b/tests/qemuxml2argvdata/qemuxml2argv-pseries-hostdev.xml
new file mode 100644
index 0000000..2aa6ffc
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-hostdev.xml
@@ -0,0 +1,33 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>524288</memory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+  </os>
+  <devices>
+    <emulator>/usr/bin/qemu-system-ppc64</emulator>
+    <controller type='pci' model='pci-root'/>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0001' bus='0x01' slot='0x00' function='0x0'/>
+      </source>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0005' bus='0x90' slot='0x01' function='0x2'/>
+      </source>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0001' bus='0x01' slot='0x00' function='0x1'/>
+      </source>
+    </hostdev>
+    <controller type='usb' model='none'/>
+    <memballoon model='none'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-1.args b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-1.args
new file mode 100644
index 0000000..bf78fc1
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-1.args
@@ -0,0 +1,22 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-ppc64 \
+-name guest \
+-S \
+-M pseries \
+-m 512 \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-nographic \
+-nodefconfig \
+-nodefaults \
+-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-guest/monitor.sock,\
+server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=readline \
+-boot c \
+-device pci-bridge,chassis_nr=1,id=pci.1,bus=pci.0,addr=0x1 \
+-device virtio-scsi-pci,id=scsi0,bus=pci.1,addr=0x1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-1.xml b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-1.xml
new file mode 100644
index 0000000..8755409
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-1.xml
@@ -0,0 +1,20 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>524288</memory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+  </os>
+  <devices>
+    <emulator>/usr/bin/qemu-system-ppc64</emulator>
+    <controller type='pci' model='pci-root'/>
+    <!-- The SCSI controller is plugged into PCI bus 1, but since said bus
+         is not present in the configuration libvirt will have to add it -->
+    <controller type='scsi' model='virtio-scsi'>
+      <address type='pci' bus='1' slot='1'/>
+    </controller>
+    <controller type='usb' model='none'/>
+    <memballoon model='none'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-2.args b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-2.args
new file mode 100644
index 0000000..1cb5831
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-2.args
@@ -0,0 +1,22 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-ppc64 \
+-name guest \
+-S \
+-M pseries \
+-m 512 \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-nographic \
+-nodefconfig \
+-nodefaults \
+-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-guest/monitor.sock,\
+server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=readline \
+-boot c \
+-device spapr-pci-host-bridge,index=1,id=pci.2 \
+-device pci-bridge,chassis_nr=1,id=pci.1,bus=pci.0,addr=0x1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-2.xml b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-2.xml
new file mode 100644
index 0000000..7065626
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-buses-2.xml
@@ -0,0 +1,18 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>524288</memory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+  </os>
+  <devices>
+    <emulator>/usr/bin/qemu-system-ppc64</emulator>
+    <!-- PCI buses 0 and 2 are present in the configuration, libvirt will
+         have to fill in the blanks and add bus 1 -->
+    <controller type='pci' index='0' model='pci-root'/>
+    <controller type='pci' index='2' model='pci-root'/>
+    <controller type='usb' model='none'/>
+    <memballoon model='none'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-devices.args b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-devices.args
new file mode 100644
index 0000000..1db4533
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-devices.args
@@ -0,0 +1,53 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-ppc64 \
+-name guest \
+-S \
+-M pseries \
+-m 512 \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-nographic \
+-nodefconfig \
+-nodefaults \
+-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-guest/monitor.sock,\
+server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=readline \
+-boot c \
+-device pci-bridge,chassis_nr=1,id=pci.1,bus=pci.0,addr=0x1 \
+-device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
+-device virtio-scsi-pci,id=scsi1,bus=pci.0,addr=0x3 \
+-device virtio-scsi-pci,id=scsi2,bus=pci.0,addr=0x4 \
+-device virtio-scsi-pci,id=scsi3,bus=pci.0,addr=0x5 \
+-device virtio-scsi-pci,id=scsi4,bus=pci.0,addr=0x6 \
+-device virtio-scsi-pci,id=scsi5,bus=pci.0,addr=0x7 \
+-device virtio-scsi-pci,id=scsi6,bus=pci.0,addr=0x8 \
+-device virtio-scsi-pci,id=scsi7,bus=pci.0,addr=0x9 \
+-device virtio-scsi-pci,id=scsi8,bus=pci.0,addr=0xa \
+-device virtio-scsi-pci,id=scsi9,bus=pci.0,addr=0xb \
+-device virtio-scsi-pci,id=scsi10,bus=pci.0,addr=0xc \
+-device virtio-scsi-pci,id=scsi11,bus=pci.0,addr=0xd \
+-device virtio-scsi-pci,id=scsi12,bus=pci.0,addr=0xe \
+-device virtio-scsi-pci,id=scsi13,bus=pci.0,addr=0xf \
+-device virtio-scsi-pci,id=scsi14,bus=pci.0,addr=0x10 \
+-device virtio-scsi-pci,id=scsi15,bus=pci.0,addr=0x11 \
+-device virtio-scsi-pci,id=scsi16,bus=pci.0,addr=0x12 \
+-device virtio-scsi-pci,id=scsi17,bus=pci.0,addr=0x13 \
+-device virtio-scsi-pci,id=scsi18,bus=pci.0,addr=0x14 \
+-device virtio-scsi-pci,id=scsi19,bus=pci.0,addr=0x15 \
+-device virtio-scsi-pci,id=scsi20,bus=pci.0,addr=0x16 \
+-device virtio-scsi-pci,id=scsi21,bus=pci.0,addr=0x17 \
+-device virtio-scsi-pci,id=scsi22,bus=pci.0,addr=0x18 \
+-device virtio-scsi-pci,id=scsi23,bus=pci.0,addr=0x19 \
+-device virtio-scsi-pci,id=scsi24,bus=pci.0,addr=0x1a \
+-device virtio-scsi-pci,id=scsi25,bus=pci.0,addr=0x1b \
+-device virtio-scsi-pci,id=scsi26,bus=pci.0,addr=0x1c \
+-device virtio-scsi-pci,id=scsi27,bus=pci.0,addr=0x1d \
+-device virtio-scsi-pci,id=scsi28,bus=pci.0,addr=0x1e \
+-device virtio-scsi-pci,id=scsi29,bus=pci.0,addr=0x1f \
+-device virtio-scsi-pci,id=scsi30,bus=pci.1,addr=0x1 \
+-device virtio-scsi-pci,id=scsi31,bus=pci.1,addr=0x2
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-devices.xml b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-devices.xml
new file mode 100644
index 0000000..9a3ead3
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-pseries-many-devices.xml
@@ -0,0 +1,49 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>524288</memory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+  </os>
+  <devices>
+    <emulator>/usr/bin/qemu-system-ppc64</emulator>
+    <controller type='pci' model='pci-root'/>
+    <!-- pci-root has 31 slots and there are 32 SCSI controllers here, so
+         libvirt will automatically add at least one more PCI controller -->
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='scsi' model='virtio-scsi'/>
+    <controller type='usb' model='none'/>
+    <memballoon model='none'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 9996960..4e46825 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1703,6 +1703,27 @@ mymain(void)
             QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_CHARDEV,
             QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE);
 
+    DO_TEST("pseries-many-devices",
+            QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+            QEMU_CAPS_DEVICE_PCI_BRIDGE,
+            QEMU_CAPS_VIRTIO_SCSI);
+    DO_TEST("pseries-many-buses-1",
+            QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+            QEMU_CAPS_DEVICE_PCI_BRIDGE,
+            QEMU_CAPS_VIRTIO_SCSI);
+    DO_TEST("pseries-many-buses-2",
+            QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+            QEMU_CAPS_DEVICE_PCI_BRIDGE,
+            QEMU_CAPS_VIRTIO_SCSI);
+    DO_TEST("pseries-hostdev",
+            QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+            QEMU_CAPS_HOST_PCI_MULTIDOMAIN,
+            QEMU_CAPS_DEVICE_VFIO_PCI);
+
     DO_TEST("disk-ide-drive-split",
             QEMU_CAPS_NODEFCONFIG,
             QEMU_CAPS_IDE_CD);
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-hostdev.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-hostdev.xml
new file mode 100644
index 0000000..a00c09c
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-hostdev.xml
@@ -0,0 +1,46 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>524288</memory>
+  <currentMemory unit='KiB'>524288</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-ppc64</emulator>
+    <controller type='pci' index='0' model='pci-root'>
+      <model name='spapr-pci-host-bridge'/>
+      <target index='0'/>
+    </controller>
+    <controller type='usb' index='0' model='none'/>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0001' bus='0x01' slot='0x00' function='0x0'/>
+      </source>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0005' bus='0x90' slot='0x01' function='0x2'/>
+      </source>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0001' bus='0x01' slot='0x00' function='0x1'/>
+      </source>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+    </hostdev>
+    <memballoon model='none'/>
+    <panic model='pseries'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-buses-1.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-buses-1.xml
new file mode 100644
index 0000000..010a3be
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-buses-1.xml
@@ -0,0 +1,33 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>524288</memory>
+  <currentMemory unit='KiB'>524288</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-ppc64</emulator>
+    <controller type='pci' index='0' model='pci-root'>
+      <model name='spapr-pci-host-bridge'/>
+      <target index='0'/>
+    </controller>
+    <controller type='scsi' index='0' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
+    </controller>
+    <controller type='usb' index='0' model='none'/>
+    <controller type='pci' index='1' model='pci-bridge'>
+      <model name='pci-bridge'/>
+      <target chassisNr='1'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
+    </controller>
+    <memballoon model='none'/>
+    <panic model='pseries'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-buses-2.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-buses-2.xml
new file mode 100644
index 0000000..75dfabf
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-buses-2.xml
@@ -0,0 +1,34 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>524288</memory>
+  <currentMemory unit='KiB'>524288</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-ppc64</emulator>
+    <controller type='pci' index='0' model='pci-root'>
+      <model name='spapr-pci-host-bridge'/>
+      <target index='0'/>
+    </controller>
+    <controller type='pci' index='2' model='pci-root'>
+      <model name='spapr-pci-host-bridge'/>
+      <target index='1'/>
+    </controller>
+    <controller type='usb' index='0' model='none'/>
+    <controller type='pci' index='1' model='pci-bridge'>
+      <model name='pci-bridge'/>
+      <target chassisNr='1'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
+    </controller>
+    <memballoon model='none'/>
+    <panic model='pseries'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-devices.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-devices.xml
new file mode 100644
index 0000000..336373b
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-pseries-many-devices.xml
@@ -0,0 +1,126 @@
+<domain type='qemu'>
+  <name>guest</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>524288</memory>
+  <currentMemory unit='KiB'>524288</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='ppc64' machine='pseries'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-ppc64</emulator>
+    <controller type='pci' index='0' model='pci-root'>
+      <model name='spapr-pci-host-bridge'/>
+      <target index='0'/>
+    </controller>
+    <controller type='scsi' index='0' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='1' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='2' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='3' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='4' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='5' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='6' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='7' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='8' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='9' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='10' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0c' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='11' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0d' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='12' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0e' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='13' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0f' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='14' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x10' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='15' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x11' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='16' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x12' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='17' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x13' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='18' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x14' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='19' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x15' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='20' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x16' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='21' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x17' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='22' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x18' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='23' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x19' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='24' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x1a' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='25' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x1b' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='26' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x1c' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='27' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='28' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='29' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='30' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
+    </controller>
+    <controller type='scsi' index='31' model='virtio-scsi'>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x02' function='0x0'/>
+    </controller>
+    <controller type='usb' index='0' model='none'/>
+    <controller type='pci' index='1' model='pci-bridge'>
+      <model name='pci-bridge'/>
+      <target chassisNr='1'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
+    </controller>
+    <memballoon model='none'/>
+    <panic model='pseries'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 549543a..8cbada1 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -677,6 +677,27 @@ mymain(void)
             QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_CHARDEV,
             QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE);
 
+    DO_TEST("pseries-many-devices",
+            QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+            QEMU_CAPS_DEVICE_PCI_BRIDGE,
+            QEMU_CAPS_VIRTIO_SCSI);
+    DO_TEST("pseries-many-buses-1",
+            QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+            QEMU_CAPS_DEVICE_PCI_BRIDGE,
+            QEMU_CAPS_VIRTIO_SCSI);
+    DO_TEST("pseries-many-buses-2",
+            QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+            QEMU_CAPS_DEVICE_PCI_BRIDGE,
+            QEMU_CAPS_VIRTIO_SCSI);
+    DO_TEST("pseries-hostdev",
+            QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG,
+            QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE,
+            QEMU_CAPS_HOST_PCI_MULTIDOMAIN,
+            QEMU_CAPS_DEVICE_VFIO_PCI);
+
     DO_TEST("balloon-device-auto", NONE);
     DO_TEST("balloon-device-period", NONE);
     DO_TEST("channel-virtio-auto", NONE);
-- 
2.7.5


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