1. A method, comprising: establishing and initializing a set of platform configuration registers, where a first subset of platform configuration registers is defined as being non-resettable, and a second subset of platform configuration registers is defined as being resettable; storing initial boot-up system state information in one or more non-resettable platform configuration registers; dynamically resetting a value of a platform configuration register identified by a reference integrity metric to reflect a measurement value provided by the reference integrity metric; and responding to an attestation request with an attestation response including dynamic information from the platform configuration register that was reset and system state information from a non-resettable platform configuration register.