1. In a virtualization platform, a method for reclaiming memory pages, the method comprising: receiving, by a virtual machine of the virtualization platform, an inflate command which directs a balloon driver of the virtual machine to inflate; issuing, by the virtual machine and in response to the inflate command, a sweep request to a hypervisor, wherein the sweep request directs the hypervisor to (i) perform a scan of memory pages allocated to the virtual machine for a predetermined pattern of characters, (ii) de-allocate memory pages having the predetermined pattern of characters from the virtual machine, the de-allocated memory pages including super pages and regular pages, and (iii) update a list of memory page mappings to reflect the de-allocated memory pages; and after the list of memory page mappings is updated, completing balloon driver inflation.