1. A method comprising: creating a command queue in a memory of a computer system that also includes an input/output memory management unit (IOMMU) configured to implement address translation and memory protection for memory requests sourced by one or more input/output (I/O) devices in the system; writing one or more control commands to the command queue by a memory management module executable on a processor in the computer system; and the IOMMU reading the control commands from the command queue and executing the commands.