Patent ID: 9720843
Date: 2017-08-01
CPC Classifications: G06F

Claim:
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, which is to be reserved for use by an on-die persistent security-related processor logic that includes only a subset of the processor and comprises one or more of on-die hardware and on-die firmware but not for use by software that is to be executed on the processor, based on an operation mode that is to indicate whether the attempted access is by the on-die security-related processor logic or the attempted access is by the software; 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.