Abstract: A mechanism for downloading hypervisor updates using existing virtual machine (VM)-to-host channels is disclosed. A method of embodiments of the invention includes receiving one or more updates to the hypervisor from the VM via a hypervisor update component, verifying that the one or more received updates are valid, and installing the one or more received updates if the one or more received updates are valid.

Abstract: A mechanism for automatic adjustment of virtual machine (VM) storage is disclosed. A method of embodiments of the invention includes stopping, by a host computing device, a virtual machine (VM) hosted by the host computing device from running upon detecting a write error due to lack of storage on the VM, communicating, by the host computing device, an out-of-storage notification from a hypervisor of the host computing device to a host management agent, and sending, by the host computing device, data associated with the out-of storage notification and the VM to a host controller that manages the host computing device, wherein the host controller causes storage for the VM to be increased.

Abstract: A mechanism for prioritized scheduling of virtual machines is disclosed. A method includes receiving control of a virtual machine (VM) managed by a virtual machine monitor (VMM) on a host machine and executing a prioritization task involving a hardware emulation of the VM, determining an interactivity statistic for the VM based on a hardware type factor of the hardware emulation of the VM, calculating an interactivity rate for the VM based on the determined interactivity statistic for the VM, sending the calculated interactivity rate to a management daemon if the calculated interactivity rate is different than a previous interactivity rate for the VM, re-calculating priority numbers for each of the VM and all other VMs managed by the VMM based on the calculated interactivity rate, and providing the re-calculated priority numbers to a scheduling algorithm of a scheduler of the host machine for the scheduler to utilize in prioritizing the VM process.