how hotplug devices onto pcie-to-pci-bridge

["longguang.yue" <libvirt@xxxxxxx>]

Hi, all

  I have add two pcie-to-pci-bridge controllers, how hotplug devices onto this two controllers?  and libvirt knows to plug onto pci-bridge when there are no pcie-ports.

defaultly libvirt plugs devices onto pcie-port. 

thanks