Memory overcommit by speculative fault

摘要

An example method of allocating memory pages for a guest includes receiving, by a hypervisor, a request to allocate a plurality of guest memory pages for a guest running on a virtual machine. The virtual machine and the hypervisor run on a host machine. The method also includes in response to the request: (i) allocating, by the hypervisor, a plurality of host memory pages, and (ii) mapping the plurality of guest memory pages to the plurality of host memory pages.