Nano acting as PCIe slave?

Would it be possible to configure the Nano to act as a PCIe slave? Or is it acting as master only?
i.e. would it be possible to link 2 nanos through PCIe?

Hi Sebastien, the PCIe controller of Nano SoC (TX1) supports root port mode only (not endpoint), so to link multiple Nano’s together over PCIe you would need to use a PCIe switch that supports non-transparent bridging.

Thanks for the clarification