[RFC PATCH 07/28] tests: Add a baseline test for multifunction pci device use case

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There are already good number of test cases with hostdevices,
few have multifunction devices but none having more than one
than one multifunction cards.

This patch adds a case where there are two multifunction cards
and two Virtual functions part of the same XML.

0001:01:00.X & 0005:09:00.X - are Multifunction PCI cards.
0000:06:12.[5|6] - are SRIOV Virtual functions

The next few commits improve on automatically detecting the multifunction
cards and auto-assinging the addresses appropriately.

Signed-off-by: Shivaprasad G Bhat <sbhat@xxxxxxxxxxxxxxxxxx>
---
 .../hostdev-pci-multifunction.args                 |   29 +++++++
 .../qemuxml2argvdata/hostdev-pci-multifunction.xml |   59 +++++++++++++++
 tests/qemuxml2argvtest.c                           |    5 +
 .../hostdev-pci-multifunction.xml                  |   79 ++++++++++++++++++++
 tests/qemuxml2xmltest.c                            |    1 
 5 files changed, 173 insertions(+)
 create mode 100644 tests/qemuxml2argvdata/hostdev-pci-multifunction.args
 create mode 100644 tests/qemuxml2argvdata/hostdev-pci-multifunction.xml
 create mode 100644 tests/qemuxml2xmloutdata/hostdev-pci-multifunction.xml

diff --git a/tests/qemuxml2argvdata/hostdev-pci-multifunction.args b/tests/qemuxml2argvdata/hostdev-pci-multifunction.args
new file mode 100644
index 0000000000..6b57f5713f
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-pci-multifunction.args
@@ -0,0 +1,29 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-x86_64 \
+-name delete \
+-S \
+-M pc \
+-m 256 \
+-smp 4,sockets=4,cores=1,threads=1 \
+-uuid 583a8e8e-f0ce-4f53-89ab-092862148b25 \
+-nographic \
+-nodefaults \
+-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-delete/monitor.sock,\
+server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=readline \
+-no-acpi \
+-boot c \
+-usb \
+-device vfio-pci,host=0005:90:01.0,id=hostdev0,bus=pci.0,addr=0x3 \
+-device vfio-pci,host=0001:01:00.1,id=hostdev1,bus=pci.0,addr=0x4 \
+-device vfio-pci,host=0001:01:00.0,id=hostdev2,bus=pci.0,addr=0x5 \
+-device vfio-pci,host=0005:90:01.2,id=hostdev3,bus=pci.0,addr=0x6 \
+-device vfio-pci,host=0005:90:01.3,id=hostdev4,bus=pci.0,addr=0x7 \
+-device vfio-pci,host=06:12.1,id=hostdev5,bus=pci.0,addr=0x8 \
+-device vfio-pci,host=06:12.2,id=hostdev6,bus=pci.0,addr=0x9 \
+-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xa
diff --git a/tests/qemuxml2argvdata/hostdev-pci-multifunction.xml b/tests/qemuxml2argvdata/hostdev-pci-multifunction.xml
new file mode 100644
index 0000000000..06c889c64d
--- /dev/null
+++ b/tests/qemuxml2argvdata/hostdev-pci-multifunction.xml
@@ -0,0 +1,59 @@
+<domain type='kvm'>
+  <name>delete</name>
+  <uuid>583a8e8e-f0ce-4f53-89ab-092862148b25</uuid>
+  <memory unit='KiB'>262144</memory>
+  <vcpu placement='static'>4</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc'>hvm</type>
+  </os>
+  <devices>
+    <emulator>/usr/bin/qemu-system-x86_64</emulator>
+    <controller type='usb' index='0'/>
+    <controller type='ide' index='0'/>
+    <controller type='pci' index='0' model='pci-root'/>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0005' bus='0x90' slot='0x01' function='0x0'/>
+      </source>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0001' bus='0x01' slot='0x00' function='0x1'/>
+      </source>
+    </hostdev>
+    <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='0x0005' bus='0x90' slot='0x01' function='0x3'/>
+      </source>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0000' bus='0x06' slot='0x12' function='0x1'/>
+      </source>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0000' bus='0x06' slot='0x12' function='0x2'/>
+      </source>
+    </hostdev>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 731db9ed52..1e00eb167a 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1604,6 +1604,11 @@ mymain(void)
     DO_TEST("hostdev-vfio-multidomain",
             QEMU_CAPS_NODEFCONFIG,
             QEMU_CAPS_DEVICE_VFIO_PCI, QEMU_CAPS_HOST_PCI_MULTIDOMAIN);
+    DO_TEST("hostdev-pci-multifunction",
+            QEMU_CAPS_KVM,
+            QEMU_CAPS_DEVICE_VFIO_PCI,
+           QEMU_CAPS_HOST_PCI_MULTIDOMAIN,
+            QEMU_CAPS_PCI_MULTIFUNCTION);
     DO_TEST("hostdev-mdev-precreated",
             QEMU_CAPS_NODEFCONFIG,
             QEMU_CAPS_DEVICE_VFIO_PCI);
diff --git a/tests/qemuxml2xmloutdata/hostdev-pci-multifunction.xml b/tests/qemuxml2xmloutdata/hostdev-pci-multifunction.xml
new file mode 100644
index 0000000000..52ed86e305
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/hostdev-pci-multifunction.xml
@@ -0,0 +1,79 @@
+<domain type='kvm'>
+  <name>delete</name>
+  <uuid>583a8e8e-f0ce-4f53-89ab-092862148b25</uuid>
+  <memory unit='KiB'>262144</memory>
+  <currentMemory unit='KiB'>262144</currentMemory>
+  <vcpu placement='static'>4</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc'>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-x86_64</emulator>
+    <controller type='usb' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+    </controller>
+    <controller type='ide' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+    </controller>
+    <controller type='pci' index='0' model='pci-root'/>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0005' bus='0x90' slot='0x01' function='0x0'/>
+      </source>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' 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='0x04' function='0x0'/>
+    </hostdev>
+    <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='0x05' 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='0x06' function='0x0'/>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0005' bus='0x90' slot='0x01' function='0x3'/>
+      </source>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0000' bus='0x06' slot='0x12' function='0x1'/>
+      </source>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
+    </hostdev>
+    <hostdev mode='subsystem' type='pci' managed='yes'>
+      <driver name='vfio'/>
+      <source>
+        <address domain='0x0000' bus='0x06' slot='0x12' function='0x2'/>
+      </source>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
+    </hostdev>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 28ba46efb2..91e3285109 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -473,6 +473,7 @@ mymain(void)
 
     DO_TEST("hostdev-usb-address", NONE);
     DO_TEST("hostdev-pci-address", NONE);
+    DO_TEST("hostdev-pci-multifunction", NONE);
     DO_TEST("hostdev-vfio", NONE);
     DO_TEST("hostdev-mdev-precreated", NONE);
     DO_TEST("pci-rom", NONE);

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