[SLOF] [PATCH 07/16] Perform some initial measurements

Nikunj A Dadhania nikunj at linux.vnet.ibm.com
Mon Nov 16 19:35:58 AEDT 2015

Stefan Berger <stefanb at linux.vnet.ibm.com> writes:

> On 11/13/2015 12:20 AM, Nikunj A Dadhania wrote:
>> Stefan Berger <stefanb at linux.vnet.ibm.com> writes:
>>> On 11/12/2015 12:10 AM, Nikunj A Dadhania wrote:
>>> vTPM will enable trusted boot, not secure boot. We will deactivate the
>>> TPM in case an error occurred, which should not be happening under
>>> normal circumstances.
>> Ok, what is user expected to do when this fails ?
> Temporary deactivation (TPM_SetTempDeactivated) of the TPM will be done 
> in the error path of functions that should never fail. The error code 
> will come up in Forth code mostly to be able to display an error 
> message.

During the VNC session, the bootup is very fast and the user would miss
the error message if the boot proceeded after the message.

> If this happens this would indicate that something is wrong 
> with the TPM itself and the user could either try to reboot the VM or 
> define a new VM to see whether the error occurs there as well and if 
> nothing else works file a bug report...

I think we need to stop VM booting at SLOF prompt and indicate this
error. Give an option to user to proceed booting or abort ?


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