Computing device to provide access control to a hardware resource

A computing device comprising:

• means for sending a transaction signal, the transaction signal including a target address of a hardware resource, a security data associated with an initiator of the transaction signal, a safety data associated with the initiator, and a safety master identifier, wherein the safety master identifier allows safety access to a safety configuration register but prevents safety access to the hardware resource when the safety master identifier is set to a first value, and does not prevent safety access to the hardware resource but prevents safety access to the safety configuration register when the safety master identifier is set to a second value;
• means for receiving the transaction signal;
• means for determining whether security access is granted based on the transaction signal;
• means for determining whether safety access is granted based on the transaction signal;
• and
• means for allowing access to the hardware resource based on both the security access and the safety access being granted.

A method operational in a computing device comprising:

• sending, by a component, a transaction signal, the transaction signal including a target address of a hardware resource, a security data associated with an initiator of the transaction signal, a safety data associated with the initiator, and a safety master identifier, wherein the safety master identifier allows safety access to a safety configuration register but prevents safety access to the hardware resource when the safety master identifier is set to a first value, and does not prevent safety access to the hardware resource but prevents safety access to the safety configuration register when the safety master identifier is set to a second value;
• receiving, by an access control unit, the transaction signal;
• determining, by the access control unit, whether security access is granted based on the transaction signal;
• determining, by the access control unit, whether safety access is granted based on the transaction signal;
• and
• allowing, by the access control unit, access to the hardware resource based on both the security access and the safety access being granted.

A non-transitory, computer-readable medium, having stored thereon computer-readable instructions for providing access control to a hardware resource, comprising instructions configured to cause a computing device to:

• send a transaction signal, the transaction signal including a target address of the hardware resource, a security data associated with an initiator of the transaction signal, a safety data associated with the initiator, and a safety master identifier, wherein the safety master identifier allows safety access to a safety configuration register but prevents safety access to the hardware resource when the safety master identifier is set to a first value, and does not prevent safety access to the hardware resource but prevents safety access to the safety configuration register when the safety master identifier is set to a second value;
• receive the transaction signal;
• determine whether security access is granted based on the transaction signal;
• determine whether safety access is granted based on the transaction signal;
• and
• allow access to the hardware resource based on both the security access and the safety access being granted.