I have a new architecture port that can boot linux and work interactively with a UART. The next step to facilitate application development is to have NFS filesystems. The real HW has no bus--it will have some sort of shared-memory, SW-arbitrated access to a control processor's devices. For development on QEMU, I'm guessing the easiest way to fake a network is to use virtio-net, since linux kernel and QEMU both support it. Perhaps when it comes time to implement the network link to the control-processor, virtio-net will be the best choice there as well.
Now, I need to know how to glue it all together. Questions: * the Syborg virtual board seemed like a good & simple reference; but unfortunately, I can't find a full set of system and userspace software to get it running. Any leads here? * Even though there is no bus, does it make sense to pretend there is a PCI bus? I had the idea that this might be the quickest bringup, since it would require minimal porting on the kernel side: QEMU populates the PCI config space with the virtio-net device and Linux auto-detects at boot. If it's equivalent effort to configure and connect the virtio-net device directly, I'd rather not pretend PCI. All ideas, leads and advice gratefully accepted. G
