Abstract: This document discloses aspects of secure chip-wide communication. In some aspects, a host of a system generates integrity metadata for a command payload issued to a destination over an interconnect of the system. The integrity metadata can be generated based on respective values of bits that form the command payload, such as plaintext data bits. The destination validates the integrity of the command payload based on the integrity metadata before consuming the command payload. In some cases, the destination stores the integrity metadata with data of the command payload, which may be returned to the host along the data when requested. By so doing, the host and destinations of the system can use the integrity metadata to implement secure-chip wide communication, which may prevent fault injection attacks on the command payloads or response data during transit or at temporal storage locations within the system.

Abstract: A system for holding a portable computer device is provided. The system includes a platform configured to hold the portable computer device. Also, a port replicator is provided that replicates one or more computer ports of the portable computing device. The port replicator is configured to attach to the platform. In this embodiment, the port replicator may be connected to the portable computing device such that the ports of the port replicator may be used to connect to peripheral devices instead of the ports of the portable computing device. Thus, the ports of the port replicator act as if they were ports of the portable computing device. Additionally, the port replicator is configured to be detached from the platform. The port replicator, in this embodiment, can be used to support the portable computing device when the portable computing device is not being held by the platform. Accordingly, the port replicator may be used as a stand for the portable computing device.