Re: TPM selftest failure in 4.15 (Dell XPS 13, Nuvoton 6xx)

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On Thu, Feb 01, 2018 at 09:06:55PM +0000, Mario.Limonciello@xxxxxxxx wrote:

> I discussed this with some folks and although it would fix the
> problem it is not accurately characterizing the situation.  What is
> likely happening here is that issuing the self test command in
> succession is causing the TPM to restart the self test and not
> complete.  Instead the selfTestDone bit should be polled.

Oh, I wonder if that is beacuse this was copied from the TPM1 version
where we don't have a bit like that??

Should we check this selfTestDone bit before event sending the self
test?

Jsaon



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