TESTING MEMORY PROTECTION HARDWARE IN A SECURE VIRTUAL MACHINE ENVIRONMENT

摘要

One method of testing memory protection hardware includes receiving, from an untrusted entity running on a host server, a request to assign a secure entity. Secure interface control of the host server determines whether the host server is in a secure auxiliary (AS) debug mode for testing an AS entity. Based on the determination that the host server is in the AS debug mode, a secure guest entity state is loaded from a state descriptor for the secure entity into an AS entity state in hardware for access upon allocation of the secure entity Test pages in memory that are registered as "Safe" and as belonging to the AS entity.