Providing a multi-phase lockstep integrity reporting mechanism

摘要

In one embodiment, a processor can enforce a blacklist and validate, according to a multi-phase lockstep integrity protocol, a device coupled to the processor. Such enforcement may prevent the device from accessing one or more resources of a system prior to the validation. The blacklist may include a list of devices that have not been validated according to the multi-phase lockstep integrity protocol. Other embodiments are described and claimed.

主权项

1. A processor comprising:
a plurality of cores and an uncore logic, wherein the processor is to enforce a blacklist and to validate a device coupled to the processor according to a multi-phase lockstep integrity protocol in which the processor and the device each perform an integrity protocol, the blacklist including a list of devices that have not been validated according to the multi-phase lockstep integrity protocol, the processor to act as a master to perform at least a portion of the multi-phase lockstep integrity protocol, and to extend a first trusted platform module (TPM) platform configuration register (PCR) responsive to an authority value read from a policy entry of a table of the device written by the device after the device has completed at least a portion of a first phase of the multi-phase lockstep integrity protocol.