Hierarchical power management in artificial reality systems

A method comprising:

• determining and indicating, by a host subsystem of an artificial reality system, a non-host subsystem of a plurality of non-host subsystems is to be powered up;
• in response to a determination a corresponding power domain of the determined non-host subsystems is awake, generating, by the host subsystem, a reset vector and release;
• and
• sending, by the host subsystem, the generated reset vector and release to the corresponding non-host subsystem to cause a local processor of the non-host subsystem to initiate a cold boot sequence.

A non-transitory computer-readable storage medium comprising instructions that, when executed, configure processing circuitry of an artificial reality system to:

• determine and indicate, by a host subsystem of the artificial reality system, a non-host subsystem of a plurality of non-host subsystems of the artificial reality system is to be powered up;
• in response to a determination a corresponding power domain of the determined non-host subsystems is awake, generate, by the host subsystem, a reset vector and release;
• and
• send, by the host subsystem, the generated reset vector and release to the corresponding non-host subsystem to cause a local processor of the non-host subsystem to initiate a cold boot sequence.