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Message-ID: <35286B1AE75A7C47BFF0870081A31B4B3A9B501757@SAFEX1MAIL4.st.com>
Date: Wed, 28 Nov 2012 18:48:57 +0100
From: Mathias LEBLANC <Mathias.LEBLANC@...com>
To: Kent Yoder <shpedoikal@...il.com>
Cc: Kent Yoder <key@...ux.vnet.ibm.com>,
Jean-Luc BLANC <jean-luc.blanc@...com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Rajiv Andrade <mail@...jiv.net>,
"tpmdd-devel@...ts.sourceforge.net"
<tpmdd-devel@...ts.sourceforge.net>, Sirrix AG <tpmdd@...rix.com>
Subject: RE: [tpmdd-devel] [PATCH 1/1] TPM: STMicroelectronics ST33 I2C
KERNEL 3.x.x
Ok, so i have patch the ST33 I2C driver on this branch and correct some errors.
I send you the patch for the kernel 3.x
I have no error on compilation, tell me if you have problems.
I have implemented the tpm_do_selftest function to get the tpm ready, but it can be removed
________________________________________
From: Kent Yoder [shpedoikal@...il.com]
Sent: 28 November 2012 16:31
To: Mathias LEBLANC
Cc: Kent Yoder; Jean-Luc BLANC; linux-kernel@...r.kernel.org; Rajiv Andrade; tpmdd-devel@...ts.sourceforge.net; Sirrix AG
Subject: Re: [tpmdd-devel] [PATCH 1/1] TPM: STMicroelectronics ST33 I2C KERNEL 3.x.x
On Wed, Nov 28, 2012 at 2:54 AM, Mathias LEBLANC <Mathias.LEBLANC@...com> wrote:
> Hi Kent,
>
> I have been tried the patch on your linux branch and indeed, i have an error about tpm_continue_seftest.
> What is the kernel I should use to test officially my patch? Because i saw a lot of different version of linux kernel with the tpm_continue_seftest function.
> I used this repo git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 for my tests.
The tree url I sent you is the correct one. Make sure you use the
"next" branch.
Kent
> Matthias Leblanc
>
> ________________________________________From: Kent Yoder [shpedoikal@...il.com]
> Sent: 27 November 2012 15:48
> To: Mathias LEBLANC
> Cc: Kent Yoder; Jean-Luc BLANC; linux-kernel@...r.kernel.org; Rajiv Andrade; tpmdd-devel@...ts.sourceforge.net; Sirrix AG
> Subject: Re: [tpmdd-devel] [PATCH 1/1] TPM: STMicroelectronics ST33 I2C KERNEL 3.x.x
>
> On Tue, Nov 27, 2012 at 2:44 AM, Mathias LEBLANC <Mathias.LEBLANC@...com> wrote:
>> Hi Kent,
>>
>> What's version of the kernel do you compiled?
>> I don't understand why you have some problem with formating, i have send you the patch with no error and warning of code formating.
>> The tpm_continue_selftest_nocheck() (in kernel 3.x.x) and tpm_continue_selftest() (in kernel 2.6.x) is called to have the tpm ready.
>> If the tpm_continue_selftest is not called by the driver, it will be use in the applications.
>
> Apply against this tree's "next" branch.
>
> git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git
>
> Thanks,
> Kent
>
>> Regards,
>>
>> Matthias Leblanc
>> ________________________________________
>> From: Kent Yoder [key@...ux.vnet.ibm.com]
>> Sent: 26 November 2012 18:46
>> To: Mathias LEBLANC
>> Cc: Rajiv Andrade; Marcel Selhorst; Sirrix AG; tpmdd-devel@...ts.sourceforge.net; Debora Velarde; linux-kernel@...r.kernel.org; Jean-Luc BLANC
>> Subject: Re: [PATCH 1/1] TPM: STMicroelectronics ST33 I2C KERNEL 3.x.x
>>
>> Hi Mathias,
>>
>> On Mon, Nov 19, 2012 at 11:15:21PM +0100, Mathias Leblanc wrote:
>>> * STMicroelectronics version 1.2.0, Copyright (C) 2010
>>> * STMicroelectronics comes with ABSOLUTELY NO WARRANTY.
>>> * This is free software, and you are welcome to redistribute it
>>> * under certain conditions.
>>
>>> This is the driver for TPM chip from ST Microelectronics.
>>>
>>> If you have a TPM security chip from STMicroelectronics working with
>>> an I2C, in menuconfig or .config choose the tpm driver on
>>> device --> tpm and activate the protocol of your choice before compiling
>>> the kernel.
>>> The driver will be accessible from within Linux.
>>>
>>> Tested on linux x86/x64, beagleboard REV B & XM REV C and CHROMIUM OS
>>> on kernel 3.x.x
>>>
>>> Signed-off-by: Mathias Leblanc <mathias.leblanc@...com>
>>> ---
>>> drivers/char/tpm/tpm_stm_st33_i2c.c | 903 ++++++++++++++++++++++++++++++++++
>>> drivers/char/tpm/tpm_stm_st33_i2c.h | 81 +++
>>> include/linux/i2c/tpm_stm_st33_i2c.h | 47 ++
>>> 3 files changed, 1031 insertions(+)
>>> create mode 100644 drivers/char/tpm/tpm_stm_st33_i2c.c
>>> create mode 100644 drivers/char/tpm/tpm_stm_st33_i2c.h
>>> create mode 100644 include/linux/i2c/tpm_stm_st33_i2c.h
>>
>> I'm still getting the compiler errors I mentioned earlier. I've fixed
>> them up with the patch below (plus some formatting), all except for the
>> tpm_continue_selftest_nocheck() problem. Do you really need to call
>> continue selftest on resume? That strikes me as out of place here.
>> What's making the call to the TPM to start the self test in that case?
>>
>> Please test with the patch below.
>>
>> Thanks,
>> Kent
>>
>>
>> diff --git a/drivers/char/tpm/tpm_stm_st33_i2c.c b/drivers/char/tpm/tpm_stm_st33_i2c.c
>> index 52f3380..67f81b6 100644
>> --- a/drivers/char/tpm/tpm_stm_st33_i2c.c
>> +++ b/drivers/char/tpm/tpm_stm_st33_i2c.c
>> @@ -722,7 +722,7 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
>> goto _irq_set;
>>
>> intmask = TPM_GLOBAL_INT_ENABLE;
>> - err = I2C_WRITE_DATA(client, TPM_INT_ENABLE + 3, &intmask, 1);
>> + err = I2C_WRITE_DATA(client, (TPM_INT_ENABLE + 3), &intmask, 1);
>> if (err < 0)
>> goto _irq_set;
>>
>> @@ -820,10 +820,10 @@ static int tpm_st33_i2c_pm_suspend(struct i2c_client *client, pm_message_t mesg)
>>
>> if (power_mgt)
>> gpio_set_value(pin_infos->io_lpcpd, 0);
>> - else{
>> + else {
>> if (chip->data_buffer == NULL)
>> chip->data_buffer = pin_infos->tpm_i2c_buffer[0];
>> - ret = tpm_pm_suspend(&client->dev, mesg);
>> + ret = tpm_pm_suspend(&client->dev);
>> }
>> return ret;
>> } /* tpm_st33_i2c_suspend() */
>> @@ -848,12 +848,12 @@ static int tpm_st33_i2c_pm_resume(struct i2c_client *client)
>> (chip->vendor.status(chip) &&
>> TPM_STS_VALID) == TPM_STS_VALID,
>> chip->vendor.timeout_b);
>> - } else{
>> - if (chip->data_buffer == NULL)
>> - chip->data_buffer = pin_infos->tpm_i2c_buffer[0];
>> - ret = tpm_pm_resume(&client->dev);
>> - if (!ret)
>> - tpm_continue_selftest_nocheck(chip);
>> + } else {
>> + if (chip->data_buffer == NULL)
>> + chip->data_buffer = pin_infos->tpm_i2c_buffer[0];
>> + ret = tpm_pm_resume(&client->dev);
>> + if (!ret)
>> + tpm_continue_selftest_nocheck(chip);
>> }
>> return ret;
>> } /* tpm_st33_i2c_pm_resume() */
>>
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>
>
>
> --
> IBM LTC Security
--
IBM LTC Security
View attachment "0001-TPM-STMicroelectronics-ST33-I2C-KERNEL-3.x.patch" of type "text/x-patch" (30813 bytes)
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