PROTECTING SUPERVISOR MODE INFORMATION

摘要

Embodiments of an invention for protecting supervisor mode information are disclosed. In one embodiment, an apparatus includes a storage location, instruction hardware, execution hardware, and control logic. The storage location is to store an indicator to enable supervisor mode information protection. The instruction hardware is to receive an instruction to access supervisor mode information. The execution hardware is to execute the instruction. The control logic is to prevent execution of the instruction if supervisor mode information protection is enabled and a current privilege level is less privileged than a supervisor mode.

主权项

1. An apparatus comprising:
a storage location in which to store an indicator to enable supervisor mode information protection; instruction hardware to receive an instruction to access supervisor mode information; execution hardware to execute the instruction; and control logic to pre vent execution of the instruction if supervisor mode information protection is enabled and a current privilege level is less privileged than a supervisor mode.