Hi all, I am trying to create a multicore system with two memory types, one is a regular DRAM and the other memory has a longer latency. The memories are located on different memory channels but have the same interconnect latency, the only latency difference is between the memory controller and the memory itself due to memory technology. The address range of each memory is continues and not interleaved. (This is something like a multicore system with DRAM and persistent memory).
In order to be able to assign pages specifically to each memory, I want the OS to recognize the two memories as two different NUMA nodes. How can I make gem5 fs to report to the OS that the two memory address ranges belong to different NUMA nodes? Can I add some component to the configuration script to make this happen? Do I need to change the BIOS somehow? (I have tried using the numa=fake tool on Linux, but it did not create new fake nodes.) Thank you very much, Ben Perach
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