Xavier to xavier share memory mode

In shared memory mode, it can work normally, sudo lspci -vvv can detect the device, and according to the documentation, it can read and write data normally.

1. How to expand BAR0_SIZE to 1G or 2G ？


2. Only 32 bits of data can be written each time. Is it possible to increase the size of each write to 64KB or 1 MB ?


3. How to test read and write speed ？

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