retspen

# Command line for libvirt
<qemu:commandline>
  <qemu:arg value='-drive'/>
  <qemu:arg value='file=/var/lib/libvirt/centos.img,format=raw,if=none,id=drive-nvme-disk0'/>
  <qemu:arg value='-device'/>
  <qemu:arg value='nvme,id=drive-nvme-disk0,serial=serial0'/>
</qemu:commandline>

# IO tune
<disk type='file' device='disk'>