| ▲ | matu3ba 3 days ago | |
CHERI on its own does not fix many of the side-channels, which would need something like "BLACKOUT : Data-Oblivious Computation with Blinded Capabilities", but as I understand it, there is no consensus/infra on how to do efficient capability revocation (potentially in hardware), see https://lwn.net/Articles/1039395/. On top of that, as I understand it, CHERI has no widespread concept of how to allow disabling/separation of workloads for ulta-low latency/high-throughput/applications in mixed-critical systems in practical systems. The only system I'm aware of with practical timing guarantees and allowing virtualization is sel4, but again there are no practical guides with trade-offs in numbers yet. | ||