The external RTL simulation is supported for XSIM and all other third party simulators. You can find the respective simulator scripts generated inside the export_sim directory as per the below dir structure.
export_sim/<simulator_name>/<top_module_name>.sh
Once you finish to analyse the traffic from PL to AIE and AIE to PL, AIE simulator and RTL simulation shall be manually terminated. No Pass/Fail check is done.