A runtime environment for reconfigurable hardware operating systems

We present a runtime environment that partially reconfigures and executes hardware tasks on Xilinx Virtex. To that end, the FPGA's reconfigurable surface is split into a varying number of variable-sized vertical task slots that can accommodate the hardware tasks. A bus-based communication infrastructure allows for task communication and I/O. We discuss the design of the runtime system and its prototype implementation on an reconfigurable board architecture that was specifically tailored to reconfigurable hardware operating system research.