In PCIe endpoint and rootpoint modes, after increasing the BAR0 SIZE, how to test the data communication?

I am using two Orin modules for RP/EP communication.

At the endpoint, code modifications were made according to the linkhttps://forums.developer.nvidia.com/t/increasing-size-of-bar0-in-endpoint-mode/232498/3.

Using the following command.

nvidia@nvidia-desktop:~/work$ dmesg |grep nv_test

[  103.016937] pci_epf_nv_test pci_epf_nv_test.0: BAR0 RAM IOVA: 0xe0000000

Currently, I cannot see the BAR0 RAM physical address, but I want to use BusyBox to perform data communication testing between two Orin devices using that address.

How can I solve this?