I have an embedded application running on a Xilinx ZynqMp SoC. The application running on the PS (processor) memory maps the PL (FPGA) of the SoC over an AXI bus via /dev/mem at some base physical address.
I would like to run this application in a KVM/QEMU VM running on the PS. This means I will need to somehow expose that memory window available via /dev/mem on the host to the guest VM.
Through some research I thought that virtio-mmio would be the method to do this. I made some attempts using virtio-mmio but hit a wall, so I asked a question: Memory map address space on host from KVM/QEMU guest using virtio-mmio
The response seems to indicate that virtio-mmio is not the method I should be using for this.
If that is the case, what is the method used for exposing a memory space available on the host to a guest VM? I do not need any sort of device driver/layer on top of this. I just need raw memory access.
