linux-kernel - Re: [tpmdd-devel] [PATCH v11 0/4] Multi-instance vTPM proxy driver

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Date:	Tue, 26 Apr 2016 07:30:26 -0400
From:	Stefan Berger <stefanb@...ux.vnet.ibm.com>
To:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:	linux-security-module@...r.kernel.org,
	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [tpmdd-devel] [PATCH v11 0/4] Multi-instance vTPM proxy driver

On 04/26/2016 05:28 AM, Jarkko Sakkinen wrote:
> On Fri, Apr 22, 2016 at 07:54:27PM +0300, Jarkko Sakkinen wrote:
>> On Mon, Apr 18, 2016 at 01:26:12PM -0400, Stefan Berger wrote:
>>> The following series of patches implements a multi-instance vTPM
>>> proxy driver that can dynamically create TPM 'server' and client device
>>> pairs.
>>>
>>> Using an ioctl on the provided /dev/vtpmx, a client-side vTPM device
>>> and a server side file descriptor is created. The file descriptor must
>>> be passed to a TPM emulator. The device driver will initialize the
>>> emulated TPM using TPM 1.2 or TPM 2 startup commands and it will read
>>> the command durations from the device in case of a TPM 1.2. The choice
>>> of emulated TPM device (1.2 or 2) must be provided with a flag in
>>> the ioctl.
>>>
>>> The patches are based on the tip of a recent checkout of Jarkko's tree
>>> (master branch).
>> I've applied this series to my master branch. These patches have been
>> baking long enough in my opinion that they could be merged to next and
>> therefore find their way into Linux 4.7
>>
>> Stefan, I would still require your Tested-by for the first patch before
>> merging because it is not as mature as other patches are.
> Now I have augmented Tested-by's to relevant patches and added my
> Signed-off-by's. I plan to merge this to the next branch tomorrow.

Please don't forget Jason's patch for tpm_tis.c that fixes the device 
used in the devm_request_irq/devm_free_irq calls. The rmmod of tpm_tis 
only work correctly in interrupt mode when that patch is applied.

    Stefan