fn handle_hotplug_net_add<V: VmArch, Vcpu: VcpuArch>(
    linux: &mut RunnableLinuxVm<V, Vcpu>,
    sys_allocator: &mut SystemAllocator,
    add_control_tube: &mut impl FnMut(AnyControlTube),
    hotplug_manager: &mut PciHotPlugManager,
    tap_name: &str
) -> VmResponse