"""
virsh -c qemu:///system edit
来修改虚拟机配置virsh -c qemu:///system start
来启动虚拟机来测试配置是否生效https://unix.stackexchange.com/questions/591252/libvirt-how-to-pass-qemu-command-line-args-now-libvirt-schemas-is-404
https://libvirt.org/drvqemu.html#qemucommand