Numerous changes to KVM got into a mainline Linux kernel. Some are - as usual - performance improvements. Also, other software can now use CPU virtualization extensions when KVM module is loaded, but not in use. This should greatly decrease a number of people complaining about their VirtualBox or VMware not using VT-d, who didn't notice their distribution auto-loaded kvm.ko module.
Novell, the company behind OpenSuSE, is in process of switching from Xen to AlacricityVM, a version of KVM designed for lower I/O latency, as their default hypervisor. Recently they tried to get it included in the kernel. Unfortunately, the result was flame war between AlacrityVM developer Gregory Haskins and some KVM developers and Linus saying "no" due to various reasons. Main reason being not enough interest outside of AlacricityVM developers group, kind of obvious considering an early, generally unusuable stage of AlacricityVM.
VirtualBox released version 3.1.4. It's only a bugfix release, see changelog for details. Seeing a long list of bugs, I'm wondering why I've never encountered any of them.
Monday, February 15, 2010
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