<domain type='qemu'> <name>pcie-expander-bus-test</name> <uuid>11dbdcdd-4c3b-482b-8903-9bdb8c0a2774</uuid> <memory unit='KiB'>2097152</memory> <vcpu placement='static'>16</vcpu> <os> <type arch='aarch64' machine='virt'>hvm</type> </os> <devices> <emulator>/usr/bin/qemu-system-aarch64</emulator> <controller type='pci' index='0' model='pcie-root'/> <controller type='pci' index='1' model='pcie-expander-bus'/> <memballoon model='none'/> </devices> </domain>