Embodiments of apparatus and methods for virtualized computing are described. In embodiments, an apparatus may include one of more processor cores and a cache coupled to the one or more processor cores. The apparatus may further include a hypervisor operated by the one or more processor cores to manage operation of virtual machines on the apparatus, including selecting a part of the cache to store selected data or code of the hypervisor or one of the virtual machines, and locking the part of the cache to prevent the selected data or code from being evicted from the cache. Other embodiments may be described and/or claimed.