Compliance with specification

This page lists all recognized behaviors that differ from the specification. It also documents implementation details that TPM standards left as vendor- or implementation-specific.

List of specifications

• TCG PC Client Platform TPM Profile Specification for TPM 2.0, Version 1.05, Revision 14, 9/4/2020, shortened to PC Client PTP in this document

Deviations from specifications

None discovered at this point.

Implementation details

PC Client PTP, 6.5.2.4

Any write operation to the TPM_ACCESS_x register with more than one field set to a 1 MAY be treated as vendor specific.

This implementation acts on least significant set bit. Reasoning behind such approach is that a write tries to request the use of locality peacefully before seizing it, if both corresponding bits in TPM_ACCESS_x register are set.