Re: [tpmdd-devel] TPM 2.0 chip in Intel NUC miniPC not works

[mipsan.K <mi...@gm...>]

Hi Peter,

On Tue, Nov 3, 2015 at 4:27 PM, Peter Huewe <pet...@gm...> wrote:
> Hi,
> Does it show the same result, with and without the tpm_tis.force=1?
> But at least the driver is correctly loaded I guess - /dev/tpm0 is available?
>
without force=1 parameter, and at linux-tpm2 4.4-rc1, returned as follow:
----------------------------
root@debian:/home/debian# dmesg | grep -i tpm
[    0.000000] Linux version 4.3.0-rc4-tpm2+ (root@debian) (gcc
version 4.9.2 (Debian 4.9.2-10) ) #1 SMP Tue Nov 3 20:31:35 EST 2015
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.3.0-rc4-tpm2+
root=UUID=a5e5e761-c2f2-41c3-9dfd-800a73e7a3e6 ro quiet
[    0.000000] ACPI: TPM2 0x00000000A1F64EF8 000034 (v03 INTEL
NUC5i5MY 00000001 AMI  00000000)
[    0.000000] Kernel command line:
BOOT_IMAGE=/boot/vmlinuz-4.3.0-rc4-tpm2+
root=UUID=a5e5e761-c2f2-41c3-9dfd-800a73e7a3e6 ro quiet
[    0.417763] usb usb1: Manufacturer: Linux 4.3.0-rc4-tpm2+ ehci_hcd
[    0.839882] tpm_tis MSFT0101:00: 2.0 TPM (device-id 0x1A, rev-id 16)

root@debian:/home/debian# lsmod
Module                  Size  Used by
tpm_crb                 3676  0
x86_pkg_temp_thermal     4727  0
tpm_tis                10223  0
tpm                    28797  2 tpm_crb,tpm_tis
----------------------------

As you can find, no IRQ related warning message and tpm module is
added(linux-tpmdd does not have tpm module).

>
> Yes - trousers/tpm tools is 1.2 only
> Maybe have a look into the tss 2.0 stacks by tcg and ibm
>

I tested TPM 2.0 supporting TSS,  from IBM and Intel.
- IBM: http://sourceforge.net/projects/ibmtpm20tss/
- Intel: https://github.com/01org/TPM2.0-TSS

I could get some result only at getcapability command in IBM's TSS as below:
----------------------------
root@debian:/home/debian/Downloads/ibmtpm2/utils# ./getcapability -cap 6 | less
moreData: 1
63 properties
TPM_PT 00000100 value 322e3000 TPM_PT_FAMILY_INDICATOR - a 4-octet
character string containing the TPM Family value (TPM_SPEC_FAMILY)
TPM_PT 00000101 value 00000000 TPM_PT_LEVEL - the level of the specification
TPM_PT 00000102 value 00000074 TPM_PT_REVISION - the specification
Revision times 100
TPM_PT 00000103 value 0000012f TPM_PT_DAY_OF_YEAR - the specification
day of year using TCG calendar
TPM_PT 00000104 value 000007de TPM_PT_YEAR - the specification year using the CE
TPM_PT 00000105 value 49465800 TPM_PT_MANUFACTURER - the vendor ID
unique to each TPM manufacturer
TPM_PT 00000106 value 534c4239 TPM_PT_VENDOR_STRING_1 - the first four
characters of the vendor ID string
TPM_PT 00000107 value 36363500 TPM_PT_VENDOR_STRING_2 - the second
four characters of the vendor ID string
...
----------------------------
> --
> Peter Huewe <pet...@gm...>

It's very hard to test TPM 2.0 TSS like tpm-tools of TPM 1.2.

Thanks,
youngwha