Support for Fast and Reliable VMM Live Upgrades in Libvirt
Talk, KVM Forum 2021, (online)
This talk discussed an end-to-end solution for live upgrades, i.e. upgrading the hypervisor without a reboot, using local live migration (for KVM/qemu/libvirt). We discussed how to minimize memory and state transfer during a local migration through passing FDs between co-operating qemu processes, orchestrated by libvirt.