Re: [tboot-devel] [tpmdd-devel] TPM driver problem on GM45

[Cihula, J. <jos...@in...>]

> From: Seiji Munetoh [mailto:sei...@gm...]
> Sent: Monday, December 01, 2008 2:24 PM
>
> On Mon, Dec 1, 2008 at 4:53 PM, Marcin Obara
> <mar...@us...> wrote:
> > 2008/12/1 Seiji Munetoh <sei...@gm...>:
> >> 2008/11/28 Marcin Obara <mar...@us...>:
> >>> Linux is not supported by iTPM on these mobile platforms.
> >>> iTPM on these platforms will work only with Windows OS-es.
> >>
> >> So, do we need special driver to access the iTPM?
> >
> > It is not driver issue. It is platform design.
> > iTPM on these (mobile) platforms was designed to work only with
> > Windows OS-es. It is not possible to use any TPM Linux driver on these
> > platforms.
> > iTPM on other (desktop) platforms should work with standard Linux -
> > tpm_tis driver.
>
> So we can't use tboot & xen also on these platforms:-(
>
> thanks,
> Seiji

(cross-posting to tboot-devel since this question concerns that project)

tboot will work fine on these systems, since it accesses the TPM directly through its MMIO interface.  You will just have to use a non-Linux environment and tools to provision the TXT LCP and tboot policy indices.

Joe