tboot boot failure observed with TPM in Red Hat Enterprise Linux 8.3

Solution In Progress - Updated -

Issue

  • System halt is observed when we try to boot from tboot entry in grub in RHEL-8.3+ with TPM 2.0 in legacy BIOS mode

Environment

  • Red Hat Enterprise Linux 8.3 & 8.4
  • tboot package version 1.9.12-2 or newer
  • Intel TXT mode with TPM 2.0 or TPM 1.2 enabled in BIOS

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