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From: "Michael Niewöhner" <linux@mniewoehner.de>
To: Mimi Zohar <zohar@linux.ibm.com>,
	peterhuewe@gmx.de, jarkko.sakkinen@linux.intel.com, jgg@ziepe.ca,
	arnd@arndb.de, linux-integrity@vger.kernel.org,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [BUG] Nuvoton NCPT650 TPM 2.0 mode not working
Date: Sun, 11 Nov 2018 19:51:01 +0100
Message-ID: <b1f403b78da6d70ae493272fd7e9fede0714cf30.camel@mniewoehner.de> (raw)
In-Reply-To: <1541961216.3734.60.camel@linux.ibm.com>

Hi Mimi,

On Sun, 2018-11-11 at 13:33 -0500, Mimi Zohar wrote:
> On Sun, 2018-11-11 at 18:55 +0100, Michael Niewöhner wrote:
> > Hi all,
> > 
> > Nuvoton NCPT650 does not work in TPM 2.0 mode with tpm_tis / tpm_i2c_nuvoton
> > while it works in TPM 1.2 mode (I can reflash it via UEFI setup).
> > Kernel version is 4.19.1
> > 
> > Kernel config:
> > 
> > $ cat .config | egrep 'TCG|TPM|CRB|_TIS'
> > CONFIG_TCG_TPM=y
> > CONFIG_HW_RANDOM_TPM=y
> > CONFIG_TCG_TIS_CORE=y
> > CONFIG_TCG_TIS=y
> > CONFIG_TCG_TIS_SPI=y
> > # CONFIG_TCG_TIS_I2C_ATMEL is not set
> > # CONFIG_TCG_TIS_I2C_INFINEON is not set
> > CONFIG_TCG_TIS_I2C_NUVOTON=y
> > # CONFIG_TCG_NSC is not set
> > # CONFIG_TCG_ATMEL is not set
> > # CONFIG_TCG_INFINEON is not set
> > CONFIG_TCG_CRB=y
> > # CONFIG_TCG_VTPM_PROXY is not set
> > # CONFIG_TCG_TIS_ST33ZP24_I2C is not set
> > # CONFIG_TCG_TIS_ST33ZP24_SPI is not set
> > 
> > 
> > TPM 1.2 mode dmesg:
> > 
> > $ dmesg | egrep -i tis\|tpm\|crb
> > [    3.210040] tpm_tis 00:0a: 1.2 TPM (device-id 0xFE, rev-id 2)
> > 
> > 
> > TPM 2.0 mode dmesg:
> > 
> > $ dmesg | egrep -i tis\|tpm\|crb
> > [    0.000000] efi:  ACPI
> > 2.0=0x9e457000  ACPI=0x9e457000  SMBIOS=0x9ec44000  SMBIOS
> > 3.0=0x9ec43000  TPMEventLog=0x9711f018 
> > [    0.003517] ACPI: TPM2 0x000000009E490ED8 000034 (v03 LENOVO TC-
> > S06   00001300 AMI  00000000)
> > [    4.071550] ima: No TPM chip found, activating TPM-bypass!
> 
> It's possible that eventually the TPM is initialized, but not in time
> for IMA.  Could you you check to see if the TPM is responding to
> userspace commands after boot?

No it isn't even detected. There is no /dev/tpm0 and /sys/class/tpm is empty.

> 
> Mimi
> 



  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-11 17:55 Michael Niewöhner
2018-11-11 18:24 ` James Bottomley
2018-11-11 18:50   ` Michael Niewöhner
2018-11-11 18:57     ` James Bottomley
2018-11-11 20:09       ` Michael Niewöhner
2018-11-11 20:29         ` James Bottomley
2018-11-11 20:34           ` Michael Niewöhner
2018-11-11 21:11             ` Michael Niewöhner
2018-11-11 21:42               ` Mimi Zohar
2018-11-14 20:46                 ` Michael Niewöhner
2018-11-16 21:06                   ` Michael Niewöhner
2018-11-18  8:18                     ` Jarkko Sakkinen
2018-11-18 14:10                       ` Michael Niewöhner
2018-11-19 13:49                         ` Jarkko Sakkinen
2018-11-25 20:06                           ` Michael Niewöhner
2018-11-26 19:15                             ` Michael Niewöhner
2018-11-26 21:13                               ` Jarkko Sakkinen
2018-11-13 10:50               ` Jarkko Sakkinen
2019-01-11 15:40     ` Mimi Zohar
2019-01-12  9:52       ` Michael Niewöhner
2019-01-12 10:49         ` Michael Niewöhner
2018-11-11 18:33 ` Mimi Zohar
2018-11-11 18:51   ` Michael Niewöhner [this message]
2018-11-13 10:28 ` Jarkko Sakkinen

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