MMU-less Systems

The goal of this WG is to discuss designs for a broad range of CHERI systems where the common theme is that they operate on a shared single address space between processes. The three main categories of systems that I have in mind are:

• Embedded single-address space physical memory systems. This includes systems like CHERIoT.
• Application-class single-address space physical memory systems. This expects large physical memories where processes reside permanently because dynamically managing process memory in this setting is difficult, and supporting disk swap may not be easy.
• Application-class single-address space virtual memory systems. This uses virtual memory solely to virtualize physical memory, facilitating dynamic process memory management and supporting disk swap, while capabilities manage all access control.