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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 5/12/23 07:43, Matthew Garrett wrote:
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?

We have never seen a system that supports CRB other than some firmware TPMs that don't work with TXT in the first place. CRB is unexplored territory at this point.

Thanks
Ross



[Index of Archives]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux