ARM's new capability-based security ISA (building on top of ARMv8)

Greg Favor

This is just a quick FYI.  (Sorry if this is a bit spam'y; there isn't a clear TG to target with this email.  And I don't expect that this is something that plays into any near-term RISC-V standardization efforts.)

ARM has been working on a capability-based architecture for a while, and has just now made public the arch spec (and related specs).  This work is based on the Cheri project at Cambridge.  If you're curious about it, this link provides a high-level summary and contain a link that will get you to the arch documents:  ARM Morello Program