linux-kernel - Re: [PATCH V2 00/12] tpm + tpm

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Message-ID: <4DF62DFF.8050105@linux.vnet.ibm.com>
Date:	Mon, 13 Jun 2011 11:34:23 -0400
From:	Stefan Berger <stefanb@...ux.vnet.ibm.com>
To:	Rajiv Andrade <srajiv@...ux.vnet.ibm.com>
CC:	debora@...ux.vnet.ibm.com, tpmdd-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, jirislaby@...il.com,
	preining@...ic.at
Subject: Re: [PATCH V2 00/12] tpm + tpm_tis : Various fixes

On 05/31/2011 09:23 AM, Rajiv Andrade wrote:
> Hi Stefan,
>
> Yes, I'll have them reviewed again and in a git pull request real soon.
Has the review-oracle spoken in the meantime ? What did it say?

    Stefan

> Thanks, Rajiv Andrade
> Security Development
> IBM Linux Technology Center
>
> On 05/27/2011 05:55 PM, Stefan Berger wrote:
>> Rajiv,
>>
>>    are you planning to use these patches?
>>
>> Regards,
>>     Stefan
>>
>>
>> On 03/30/2011 12:13 PM, Stefan Berger wrote:
>>> This patchset fixes various issues in the general TPM driver and the TPM TIS
>>> driver. Some of the patches were previously posted, and are being re-posted
>>> without change, while other patches were refactored. This patchset applies to
>>> the tip of the main git tree.
>>>
>>> Patches 1-6 are related to using the timeouts that the TPM reports, along with
>>> work-arounds for TPMs that don't report the timeouts in microseconds but
>>> rather in milliseconds.
>>>
>>> Patch 7 fixes the display of the public key of the TPM's Endorsement Key in
>>> sysfs.
>>>
>>> Patch 8 re-enables the TPM's interrupts after resume from S3.
>>>
>>> Patch 9 is useful if the TPM is run in interrupt mode and delays the S3 suspend
>>> until the TPM has finished processing a command.
>>>
>>> Patch 10 fixes several aspects of the code around the probing for interrupts.
>>>
>>> Patch 11 introduces automatic probing for the Intel iTPM flaw. The probing
>>> is useful in combination with the 'force' module parameter that enables
>>> the interrupt mode on some machines but then ends up circumventing ACPI to
>>> determine whether an Intel iTPM is present to activate the work-around. So,
>>> in that case we can rely on the probing.
>>>
>>> Patch 12 fixes a typo.
>>>
>>> I have tested these patches on four different types of machines. They worked
>>> fine there even though the TPM could not be used in interrupt mode on all of
>>> them (IRQ line not connected?).
>>>
>>> V2:
>>>     - following Rajiv's feedback. Splitting the durations and timeout
>>>       patches in 3 parts.
>>>     - slightly rearranging the order of the patches
>>>
>>>     Regards,
>>>            Stefan
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