tests: Add test for PCI usage on RISC-V

This shows users can now use PCI for RISC-V guests, as long
as they opt into it by manually assigning addresses.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

tests/qemuxml2xmloutdata/riscv64-virt-pci.xml

@@ -0,0 +1,28 @@
+<domain type='qemu'>
+  <name>riscv64</name>
+  <uuid>fd65fc03-8838-4c4d-9d8d-395802488790</uuid>
+  <memory unit='KiB'>2097152</memory>
+  <currentMemory unit='KiB'>2097152</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='riscv64' machine='virt'>hvm</type>
+    <kernel>/var/lib/libvirt/images/riscv64.bbl</kernel>
+    <cmdline>root=/dev/vda</cmdline>
+    <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-riscv64</emulator>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source file='/var/lib/libvirt/images/riscv64.qcow2'/>
+      <target dev='vda' bus='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
+    </disk>
+    <controller type='pci' index='0' model='pcie-root'/>
+    <memballoon model='none'/>
+  </devices>
+</domain>