2013-04-11 23:41 skrev Kent Yoder:
>On Sat, Apr 06, 2013 at 06:00:59PM +0200, peteraspl...@gentoo.se
>wrote:
>>2013-04-02 16:03 skrev Kent Yoder:
>>>Hi Peter,
>>>
>>>On Mon, Apr 1, 2013 at 4:17 PM, <peteraspl...@gentoo.se>
wrote:
>>>>2013-03-28 14:12 skrev peter.hu...@infineon.com:
>>>>>What also might be worth a look - in your bugzilla it states:
>>>>>[ 0.225891] pnp 00:0a: Plug and Play ACPI device, IDs IFX0102
>>>>>PNP0c31
>>>>>(active)
>>>>>[ 9.150673] tpm_tis 00:0a: 1.2 TPM (device-id 0xB, rev-id 16)
>>>>>[ 9.292148] tpm_tis 00:0a: Adjusting TPM timeout parameters.
>>>>>[ 10.084067] tpm_tis 00:0a: A TPM error (7) occurred
>>attempting to
>>>>>read a pcr
>>>>>value
>>>>>[ 10.084077] tpm_tis 00:0a: TPM is disabled/deactivated (0x7)
>>>>>
>>>>>
>>>>>Can you perhaps try to enable your TPM in the BIOS? It's
quite
>>>>>often
>>>>>hidden under "embedded security device" or "system security".
>>>>>Quite often you have to have a bios password set to access
these
>>>>>settings.
>>>>>If your system does not have bios support for TPMs, please
>>>>>tell me so
>>>>>and I'll try to help you out.
>>>>>
>>>>
>>>>I've enabled it in BIOS now, and the output seems to be a bit
>>>>different. Not too uplifting though...
>>>>
>>>>root@zepto:/home/peter# dmesg | grep tpm
>>>>[ 14.631662] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id
16)
>>>>[ 14.748276] tpm_tis 00:08: Adjusting TPM timeout
parameters.
>>>>[ 34.908128] tpm_tis 00:08: tpm_transmit: tpm_send: error
-62
>>>>[ 125.992108] tpm_tis 00:08: tpm_transmit: tpm_send: error
-62
>>>>[ 212.908502] tpm_tis 00:08: tpm_transmit: tpm_send: error
-62
>>>>root@zepto:/home/peter# tpm_version
>>>>Tspi_Context_Connect failed: 0x00003011 - layer=tsp, code=0011
>>(17),
>>>>Communication failure
>>>>root@zepto:/home/peter# tcsd -f
>>>>TCSD TDDL ioctl: (25) Inappropriate ioctl for device
>>>>TCSD TDDL Falling back to Read/Write device support.
>>>>TCSD TDDL ERROR: write to device /dev/tpm0 failed: Timer
expired
>>>>TCSD TCS ERROR: TCS GetCapability failed with result = 0x1087
>>>
>>> Can you cat /sys/class/misc/tpm0/device/timeouts? Ivan
Pryvalov
>>>reported that his TPM showed values that were too small to keep
>>from
>>>causing timeouts waiting on TPM commands, but too big to
>>trigger the
>>>driver's code to scale them. (He saw 12000 for the 3 timeout
>>>values.)
>>>
>>Hi Kent
>>
>>The values I'm seeing are:
>>
>>root@zepto:~# cat /sys/class/misc/tpm0/device/timeouts
>>752000 2000000 752000 752000 [adjusted]
>>
>>So I guess these are within a normal range?
>
> Yes, these look normal. So it seems you can send commands to
the
>TPM
>up until you try to suspend? Can you try to cat other files like
>/sys/class/misc/tpm0/device/pcrs? This is the simplest way to
send
>some
>command to the TPM...
>
>Kent
>
Hi Kent, I'm sorry I haven't replied to this message before. I
must
have missed it!
root@zepto:/sys/class/misc/tpm0# ll
drwxr-xr-x 3 root root 0 Apr 23 16:20 ./
drwxr-xr-x 3 root root 0 Apr 23 16:20 ../
-r--r--r-- 1 root root 4096 Apr 23 16:26 dev
lrwxrwxrwx 1 root root 0 Apr 23 16:26 device -> ../../../00:08/
drwxr-xr-x 2 root root 0 Apr 23 16:26 power/
lrwxrwxrwx 1 root root 0 Apr 23 16:20 subsystem ->
../../../../../class/misc/
-rw-r--r-- 1 root root 4096 Apr 23 16:20 uevent
root@zepto:/sys/class/misc/tpm0# cat dev
10:224
root@zepto:/sys/class/misc/tpm0# cat device/pcrs (prints nothing
after a delay of a second or so)
root@zepto:/sys/class/misc/tpm0# cat uevent
MAJOR=10
MINOR=224
DEVNAME=tpm0
root@zepto:/sys/class/misc/tpm0# cat device/active
root@zepto:/sys/class/misc/tpm0# cat device/cancel
cat: device/cancel: Permission denied
root@zepto:/sys/class/misc/tpm0# cat device/caps
root@zepto:/sys/class/misc/tpm0# cat device/durations
1000000 4000000 152000000 [adjusted]
root@zepto:/sys/class/misc/tpm0# cat device/enabled
root@zepto:/sys/class/misc/tpm0# cat device/id
IFX0102
PNP0c31
root@zepto:/sys/class/misc/tpm0# cat device/options
root@zepto:/sys/class/misc/tpm0# cat device/owned
root@zepto:/sys/class/misc/tpm0# cat device/pubek
root@zepto:/sys/class/misc/tpm0# cat device/resources
state = active
mem 0xfed40000-0xfed44fff
io 0x4e-0x4f
io 0x1670-0x167f
irq 11
root@zepto:/sys/class/misc/tpm0# cat device/temp_deactivated
root@zepto:/sys/class/misc/tpm0# cat device/timeouts
752000 2000000 752000 752000 [adjusted]
root@zepto:/sys/class/misc/tpm0# cat device/uevent
DRIVER=tpm_tis
To be able to do the 'cat' above, I usually need to restart my
computer, otherwise the files aren't there. That's probably after
I've put the computer in sleep mode (which works if I add tpm_tis
to
the module blacklist). Perhaps the same problem is related to this
one:
I just did a grep of my dmesg and saw some new error messages (28)
in it. Perhaps they started occurring after I enabled it in BIOS.
root@zepto:/home/peter# dmesg | grep tpm_
[ 11.369198] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
[ 11.508115] tpm_tis 00:08: Adjusting TPM timeout parameters.
[ 32.560040] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 4320.577827] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
[ 4320.636111] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the timeouts
