Hardware Mechanisms for Atomic Durability

PM programming requires that data is consistent in PM in case of a failure to enable recovery and resume execution. Recovery software inspects PM data, ensures data consistency, and restores the system. Post-failure recovery can be greatly simplified by providing failure atomicity for a set of PM updates. Failure atomicity ensures that either all or none of the updates are visible to recovery in the case of a failure. It reduces the state space that recovery might observe upon failure.