Connecting Custom IP with ARM CortexM1 IP from DesignStart

Hello, I have downloaded CortexM1 IP from DesignStart and I am trying to connect it to another IP which I built. I am developing in Vivado. My IP uses AXI4 peripherals. So far I haven't been able to figure out the way to connect ARMs IP with my IP in Vivado. I want to synthesize the integrated design (ARM+my ow IP) from within Vivado. Was hoping that the ARM CortexM1 IP from DesignStart will be accessible by a simple drag-and-drop in Vivado's IP integrator. Please guide me on how to proceed.