Patent attributes
Efficient instantiation of encrypted guests is disclosed. In an example, a first host with a first hypervisor is separated from a second host with a second hypervisor by a network. The first hypervisor executes to allocate a requested amount of memory associated with a first guest on the first host. Pages of the requested amount of memory written to by a boot process of the first guest are tracked. The second hypervisor is requested to allocate the requested amount of memory on the second host. All tracked pages written to by the boot process are transferred to the second host. In response to transferring all of the tracked pages, a transfer completion confirmation is sent to the second hypervisor and a second guest that is a migrated copy of the first guest is instantiated on the second host with the transferred pages from the first guest.
