Paolo Bonzini has sent in the KVM pull request for the Linux 3.20 kernel and it includes some interesting changes and features for this important piece of the open-source Linux virtualization stack.
Highlights of the Kernel-based Virtual Machine (KVM) updates for Linux 3.20 include:
– A new optional feature to add a small amount of polling on each executed HLT instruction in the guest, for improving latency by up to 50% for some scenarios.