[libvirt] [Question] About ivshmemory device and slot number confliction.

Hello, I want to use ivshmemory device which is supported by qemu, but libvirt does not support it. So I use qemu:commandline to make ivshmemory device in qemu command pass-through. But then hot-plug a virtio-net device failed. The reason is that a qemu:commandline pci device's slot number is assigned by qemu not libvirt. And hot-plug device's slot is assigned by libvirt. So it failed beacause of slot confliction. I have two questions to ask: 1. Why libvirt does not support ivshmemory device? If libvirt intends to support it, when? 2. Can libvirt handle with qemu:commandline pci device's slot number? Just like pci:commandline to assign a slot number. what's your opinion? Best Regards, -WangYufei