Abstract: Various techniques are provided to implement context switching systems and methods. In one example, a system includes a plurality of programmable logic devices (PLDs) each configured to be in an active state or an inactive state. At most one of the plurality of PLDs is in the active state to provide PLD functionality. The system further includes an instance controller configured to communicate with each of the plurality of PLDs and control context switch aspects to set each of the plurality of PLDs to the active state or the inactive state. Related methods and devices are provided.

Abstract: Various techniques are provided for providing a root of trust chain, updating security protocols, and generating trusted customer configuration bitstreams for a programmable logic device (PLD). In one example, a method includes configuring hardware components of a PLD with an inherently trusted default set of operations immutably stored in a non-volatile memory and comprising a first root of trust for the PLD. The method also includes authenticating, by the hardware components configured with the default set of operations, a customer configuration bitstream comprising an updated set of operations. The method also includes reconfiguring the hardware components to replace the default set of operations with the updated set of operations if the authenticating is successful, wherein the updated set of operations comprise a second root of trust for the PLD. Additional devices, systems and methods are also provided.