Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Description of problem:
We are using Nuvoton TPM NPCT421LA0WX, we can't run the TPM linux test tool from Nuvoton, the TPM test is pass under DOS and microsoft windows.

Need support from RHEL to support the a tpm_tis that supports Nuvoton TPM NPCT421LA0WX.

TPM The “National Semiconductor TPM Interface” refers to the Nuvoton old TPM v1.1 device which had a proprietary interface.

For TPM v1.2 (the Nuvoton current TPMs – WPCT2xx & NPCT4xx), use “TPM Interface Specification 1.2 Interface”, a.k.a TIS or MMIO.


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.boot to RHEL6.2(kernel 2.6.32-202.el6.x86_64)
2.enable TPM driver with this command modprobe tpm_tis force=1 interrupts=0
  It prompts: FATAL: Module tpm_tis not found
  
Actual results:
fail to enable the TPM driver

Expected results:
we can enable the TPM driver successfully.


Additional info:
Intel Romley platform with Nuvonton TPM NPCT421LA0WX

This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unfortunately unable to
address this request at this time. Red Hat invites you to
ask your support representative to propose this request, if
appropriate and relevant, in the next release of Red Hat
Enterprise Linux. If you would like it considered as an
exception in the current release, please ask your support
representative.

This should have went through your support method rather than directly into bugzilla. If you look at /boot/config-2.6.32-202.el6.x86_64 and scan down to TPM, you will see that TPM_TIS is built in rather than a loadable module. So, no modprobe is needed. Closing this bug report since the module is builtin.