[PATCH v6 13/14] tpm: Allow locality 2 to be set when initializing the TPM for Secure Launch

Matthew Garrett mjg59 at srcf.ucam.org
Fri May 12 04:43:49 PDT 2023


On Thu, May 04, 2023 at 02:50:22PM +0000, Ross Philipson wrote:
> The Secure Launch MLE environment uses PCRs that are only accessible from
> the DRTM locality 2. By default the TPM drivers always initialize the
> locality to 0. When a Secure Launch is in progress, initialize the
> locality to 2.

This looks correct in itself, but looking at the CRB driver code I don't 
think locality support is actually implemented. Are there any SL systems 
using CRB?



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