Abstract: Live migration of a virtual machine (VM) includes establishing multipath connections between the VM and functions of host interface on a source host. The multipath connections include a passthrough path and a software-virtualized (or emulated) path provided by a hypervisor of the source host. A failover of the passthrough path to the emulated path is executed, and a state of the emulated path is thereafter saved. On a host interface of a destination host, functions corresponding to those of the source host are exposed. The VM is then migrated from the source host to the destination host. The VM resumes host interface communication with the host interface of the destination host from the saved state via an emulated path provided by a hypervisor of the destination host. After resuming communication, a passthrough path of communication between the VM and the host interface of the destination host is established.

Abstract: A computer implemented method for assessing endpoint security includes identifying a size of exposed PCIe space corresponding to a system of interest comprising one or more endpoints, determining an observable state of correct functionality for the system, generating random transaction layer packets corresponding to the endpoint, injecting the generated transaction layer packets, monitoring the system following the injection of the generated transaction layer packets for erroneous patterns exhibited by the system, and reporting the erroneous patterns exhibited by the system. A corresponding computer program product and computer system are also disclosed.