Messages in this thread | | | Date | Tue, 12 Aug 2008 15:30:31 -0400 | From | Christoph Hellwig <> | Subject | Re: [PATCH 1/4] integrity: TPM internel kernel interface |
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On Mon, Aug 11, 2008 at 05:13:51PM -0400, Mimi Zohar wrote: > > I assume the concern here is that between looking up the chip and actually > > using the chip, the TPM chip is disabled/deactivated. Based on > discussions > with Kenneth Goldman, the TCG main specification part2: structures, > require > that even if the TPM is disabled/deactivated, the command to extend the > PCR > will succeed, but the command to read the PCR will fail with an > appropriate > error code.
And what happens when the chip simply goes away due to a hotplug action? Or not even the actual chip goes away but just the chip driver and you now dereference freed memory?
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