A technical candidate for implementing the Kernel Enforcement Design Requirements in a Linux environment is the eBPF / LSM Reference Model. This is not the Governance OS itself, but an exploratory Reference Model for implementing the Execution Boundary.

Upstream, a Governance Decision is formed, while the Execution Boundary separates that Decision from actual Execution. However, the Execution Boundary itself is an architectural concept. Actual control is performed by Runtime Enforcement positioned downstream of the Boundary.

Runtime Enforcement receives an Enforcement Constraint derived from the upstream Decision. Rather than passing Policy itself to the Kernel for reinterpretation, the Governance Layer provides an established Execution Constraint. The Kernel then verifies whether the actual Execution Request satisfies that Constraint.

In this Reference Model, the User-Space Controller connects the Governance Layer to the Kernel Layer and makes the Enforcement Constraint available at the Kernel Enforcement Points. eBPF / LSM provides one technical candidate for enforcing these Constraints close to Execution within a Linux environment.

Kernel Enforcement Points can intercept Execution where Actions affect System Resources, including Process Execution, File Access, Network Access, and Privilege Control. Execution proceeds when the required conditions are satisfied and is Blocked when they are not. The Kernel does not independently supplement or reinterpret the Governance Decision.

Importantly, the Execution Boundary must not be conflated with the technology used to enforce it. The Execution Boundary is an architectural concept, while eBPF / LSM is only one implementation candidate for a Linux environment. Other operating systems or environments may use different Enforcement Mechanisms.

The purpose of this Reference Model is therefore not to prescribe eBPF / LSM as the optimal solution, but to demonstrate one technical path through which a Decision formed by the Governance Layer could be connected to actual OS / Kernel Enforcement through the Execution Boundary.

Governance Architecture is technology-independent. Enforcement mechanisms are replaceable.