Power off and power on method and apparatus for an in-vehicle system

A method for managing in-vehicle computing, comprising:

• instantiating one or more virtual machines (VMs) on a hypervisor executing a computing platform;
• shrinking, via a memory shrink manager, a memory footprint of one of the one or more VMs for a suspend process to suspend the one or more VMs to persistent storage, wherein the suspend process is invoked in response to the computing platform being initiated to power off, and the computing platform proceeds to power off on suspension of the one or more VMs to the persistent storage;
• saving, via a memory snapshot manager, the shrunken memory footprint of the one or more VMs to the persistent storage during the suspend process;
• and
• reloading, via the memory snapshot manager, a subset of the saved shrunken memory footprint during a resume process to resume the one or more VMs from suspension to the persistent storage, wherein the resume process is invoked in response to the computing platform being powered on, cold booted;
• wherein the memory snapshot manager comprises:
• a snapshot saver that prioritizes storing memory contents in a predetermined order into the shrunken memory footprint, wherein the predetermined order is based on functionality of one or more operations associated with the vehicle that are initially rendered;
• and
• a snapshot mapper arranged to establish a memory mapping for the memory contents of the saved shrunken memory footprint during the resume process, regardless whether the memory contents of the saved shrunken memory footprint are part of the subset being reloaded during the resume process, and to load a subset of the memory contents based on the predetermined order;
• wherein the computing platform forms at least a portion of an in-vehicle system of a vehicle that is powered off when an engine of the vehicle is turned off;
• wherein the one or more VMs comprise a service VM includes a service operating system (OS) to host one or more system services, and a user application VM includes a user OS to host one or more user applications;
• and
• wherein the memory shrink manager is disposed in the one of the one or more VMs to shrink a memory footprint of the one of the one or more VMs for the suspend process invoked while the computing platform is being powered off.

At least one non-transitory machine-readable medium having instructions for implementing a hypervisor to host one or more virtual machines (VMs) instantiated on the hypervisor, which when executed by a computing platform of an in-vehicle system in a vehicle, cause the computing platform to:

• implement a memory shrink manager to orchestrate shrinking a memory footprint of one of the one or more VMs for a suspend process to suspend the one or more VMs to persistent storage, wherein the suspend process is invoked in response to the computing platform being initiated to power off, and the computing platform proceeds to power off on suspension of the one or more VMs to the persistent storage;
• and
• implement a memory snapshot manager to save the shrunken memory footprint of the one or more VMs to the persistent storage during the suspend process, and to reload a subset of the saved shrunken memory footprint during a resume process to resume the one or more VMs from suspension to the persistent storage, wherein the resume process is invoked in response to the computing platform being powered on, cold booted;
• wherein the memory snapshot manager comprises:
• a snapshot saver that prioritizes storing memory contents in a predetermined order into the shrunken memory footprint, wherein the predetermined order is based on functionality of one or more operations associated with the vehicle that are initially rendered;
• and
• a snapshot mapper arranged to establish a memory mapping for the memory contents of the saved shrunken memory footprint during the resume process, regardless whether the memory contents of the saved shrunken memory footprint are part of the subset being reloaded during the resume process, and to load a subset of the memory contents based on the predetermined order;
• wherein the computing platform, the memory shrink manager, and the memory snapshot manager form at least a portion of the in-vehicle system of a vehicle that is powered off when an engine of the vehicle is turned off;
• wherein the one or more VMs comprise a service VM having a service operating system (OS) to host one or more system services, and a user application VM having a user OS to host one or more user applications;
• and wherein the memory shrink manager is disposed in the one of the one or more VMs to shrink a memory footprint of the one of the one or more VMs for the suspend process invoked while the computing platform is being powered off.