The virtio-win drivers for Windows guests are now available as inf and ini files on the guest tools ISO. They also remain available on the virtual floppy disk (VFD).

It is now possible to pin the virtual CPUs (vCPUs) of a guest virtual machine to specific physical CPU cores on the host from the user interface. CPU pinning options are available from the Host tab of the Edit Desktop Virtual Machine and Edit Server Virtual Machine dialog boxes.

Devices attached to guest virtual machines now retain the same address allocations as other devices are added to and/or removed from the virtual machine.

The virtio-balloon device is used to control the amount of memory a guest accesses. It offers an opportunity for increased memory over-commitment. By default the virtio-balloon device is enabled for all virtual machines in 3.1 compatible clusters. The device may be disabled using the REST API.

At this time the Manager does not however manage the balloon functionality. Users wishing to make use of this functionality must ensure that the memory balloon device driver from the Red Hat Enterprise Virtualization guest tools is installed on their virtual machines. Additionally an administrator must provide a mechanism to control the memory balloon to make use of the device.