ACCESS TYPE PROTECTION OF MEMORY RESERVED FOR USE BY PROCESSOR LOGIC

摘要

A processor of an aspect includes operation mode check logic to determine whether to allow an attempted access to an operation mode and access type protected memory based on an operation mode that is to indicate whether the attempted access is by an on-die processor logic. Access type check logic is to determine whether to allow the attempted access to the operation mode and access type protected memory based on an access type of the attempted access to the operation mode and access type protected memory. Protection logic is coupled with the operation mode check logic and is coupled with the access type check logic. The protection logic is to deny the attempted access to the operation mode and access type protected memory if at least one of the operation mode check logic and the access type check logic determines not to allow the attempted access.

主权项

1. A processor comprising:
operation mode check logic to determine whether to allow an attempted access to an operation mode and access type protected memory based on an operation mode that is to indicate whether the attempted access is by an on-die processor logic; access type check logic to determine whether to allow the attempted access to the operation mode and access type protected memory based on an access type of the attempted access to the operation mode and access type protected memory; and protection logic coupled with the operation mode check logic, and coupled with the access type check logic, the protection logic to deny the attempted access to the operation mode and access type protected memory if at least one of the operation mode check logic and the access type check logic determines not to allow the attempted access.