In PCIe endpoint mode, is it only possible to use 4K of shared memory?

I refer the NVIDIA Jetson AGX Orin Series PCIe Endpoint Design Guidelines ,config the orin to root mode and endpoint mode ,but I find the shared RAM is 4k.I want to use the share RAM about 512M. How to config the endpoint mode? The system version being used is 35.1. Thank you!
We plan to use two orin. orinA should transfer image and other data to orinB by DMA.

Sorry for the late response, have you managed to get issue resolved or still need the support? Thanks

I still need the support, thanks.

Try to configure it in the driver code.


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