One or more embodiments of the invention display alerts provided by applications of a guest environment in a notification bar controlled by a host operating system (OS) in a host environment of a mobile device, wherein the guest environment is running in a virtual machine supported by a hypervisor running within the host environment. A hypervisor-aware service in the virtual machine registers with a guest OS to be notified when applications request presentation of alerts in a notification bar controlled by the guest OS. Upon receipt of a notification by the guest OS of an application requesting presentation of an alert in the notification bar controlled by the guest OS, the hypervisor-aware service forwards the notification to the hypervisor and the hypervisor transmits a corresponding request to a notification management component of the host OS to present the alert on the notification bar controlled by the host OS.