KVM/ARM at Scale - Improvements to the MMU for Hardware Scaling Challenges

Explore the challenges and solutions in scaling ARM architecture for datacenter use in this conference talk by Oliver Upton from Google. Delve into the growing pains of interconnect IP in current silicon and its impact on stage 2 page table operations. Understand how public cloud providers are particularly affected, with live migration and memory overcommit significantly impacting guest performance. Learn about the tweaks made to the KVM/ARM MMU to reclaim performance lost due to hardware limitations. Gain insights into upcoming architected features in future hardware that aim to enhance KVM's capabilities and performance in ARM-based datacenters.