Re: [Linux-ima-user] Support for Intel TPM chips in IMA/kernel

[Reiner S. <sa...@us...>]

Hi Lavina,

you are missing the right TPM support as you know. Either you do not have 
the right driver or you do not have a TPM chip that satisfies the specs.

Both ways, this is a question for the TPM and is unrelated to IMA; IMA 
works with any TPM chip, it only connects to the generic part of the TPM 
driver.

Please try the trousers mailing list or the Linux user mailing list since 
this is standard Linux TPM support.

Greetings
Reiner 

"Lavina Jain" <lav...@gm...> wrote on 01/19/2009 06:52:31 PM:

> [image removed] 
> 
> [Linux-ima-user] Support for Intel TPM chips in IMA/kernel
> 
> Lavina Jain 
> 
> to:
> 
> linux-ima-user
> 
> 01/19/2009 06:52 PM
> 
> Hi,
> 
> I have earlier compiled IMA into linux kernel 2.6.24 (Ubuntu 8.04) 
> on a lenovo X61. It had Atmel TPM chip. Compiling TPM into the 
> kernel worked fine and I could access TPM through trousers and tpm-
> tools in the compiled kernel.
> 
> Now I am working on another machine which is lenovo X200. I 
> installed Ubuntu 8.04 on it. Since it has an older kernel (2.6.24), 
> I applied the older ima patch that I had used on my previous 
> machine. But it did not recognize TPM chip.
> Output of dmesg is as follows:
> IMA (TPM/BYPASS - no TPM chip found)
> 
> I am not sure of the manufacturer of TPM. There isn't any entry for 
> HID of TPM device in ACPI table. It lists something like this:
> Device (TPM)
> {
>       Method (HID, 0, NotSerialized)
>       {
>             TPHY(0x00)
>              If(LEqual(TPMV, 0x01))
>              {
>                          Return (0x0201D824)
>               }
>               ......
>               ......
>               Return ("INTC0102")
>        }
>        .............
> }
> 
> I suspect that it is an Intel TPM chip. Does the latest IMA patch 
> and kernel (2.6.27 in Ubuntu 8.10) have support for Intel TPM chip? 
> Any suggestions for getting things working with an Intel TPM chip 
> would be greatly appreciated.
> 
> Thanks,
> Lavina
> 
> -- 
> "Unravelling life's mysteries and discovering life's secrets may 
> take the courage and determination found only in a self-motivated 
pursuit."
> - Peter McWilliams
> 
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