intel

  1. Bug #1938678
  2. Comment #24

Comment 24 for bug 1938678

Revision history for this message
Sachin Mokashi (sachinmokashi) wrote : Re: [intel] [tgl-h][iotg] [hwe-tpm] Ubuntu Core hangs during bootup on TGL-H

@ethan.hsieh @ivan.hu,

Response from our BIOS/TPM Engineers:

"Hash Algorithm Bitmap is set in BIOS and it’s based on build configuration PCD and active PCR’s supported."

This BIOS is also distributed as reference BIOS for IBVs and hence disabling SM3 would break functionality on other Platforms/BIOS

The way to go would be to enable SM3 on go-tpm2 and tpm2-tss tools, I see your request to enable SM3 in go-tpm2/secboot here:
https://github.com/canonical/go-tpm2/issues/7