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

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Message-ID: <4DE4EBE0.7050007@linux.vnet.ibm.com>
Date:	Tue, 31 May 2011 10:23:44 -0300
From:	Rajiv Andrade <srajiv@...ux.vnet.ibm.com>
To:	Stefan Berger <stefanb@...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

Hi Stefan,

Yes, I'll have them reviewed again and in a git pull request real soon.

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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