Controlling access to a control register of a microprocessor

摘要

Controlling access to a control register of a microprocessor. A method of controlling access to a control register such as CR 3, for example, of a processor having a normal execution mode and a secure execution mode may include storing address translation table information in the control register, allowing a software invoked write access to modify the address translation table information during the normal execution mode and selectively inhibiting the software invoked write during the secure execution mode.