Re: [tpmdd-devel] [Ksummit-discuss] TPM MiniSummit @ LinuxCon Europe

[Jarkko Sakkinen]

Hey,

apologies for top-posting but which day/time/place is this going to be held?

/Jarkko

On Tue, Sep 23, 2014 at 09:42:33AM -0700, Andy Lutomirski wrote:
> On Sep 22, 2014 2:07 AM, "Peter Huewe" <PeterHuewe@xxxxxx> wrote:
> >
> > Hi,
> >
> > I would like to 'invite' all interested parties in a short TPM minisummit where we can discuss the following hot topics of the TPM subsystem over a beer or two:
> >  - State of the TPM Subsystem
> >  - De-/Initialization Mess
> >  - Devm'ification
> >  - Testing
> >  - TPM 2.0 Support
> >  - Dependencies / interaction with other subsystems (e.g. keyring / IMA)
> >  - Status of old 1.1b TPM drivers, deprecation plans
> >  - ...
> >
> 
> I am unlikely to be there, but I have a feature request / food for thought:
> 
> Using a mandatory userspace daemon (e.g. trousers) for TPM access
> sucks.  Might it be possible to teach the kernel to handle context
> save and restore and let multiple processes open the device at once?
> Then a daemon wouldn't be necessary.
> 
> There would still be a need for some policy (e.g. who can clear the
> SRK), but that should be manageable.  Maybe there should be two device
> nodes.  /dev/tpm_unpriv would be fully virtualized for access by
> multiple processes, but it would only allow use of the key hierarchy
> and read access to PCRs.  /dev/tpm_priv would allow NV access, PCR
> writes, SRK clears, etc.
> 
> --Andy
> 
> >
> > Please register your interest by filling out this doodle
> >  http://doodle.com/q9ezcrivhqrktw6u
> >
> > I'm not sure if I can get any funding for the summit... but maybe I can arrange something.
> >
> >
> > Also I'm trying to bring along some TPM samples from my employer if possible.
> >
> >
> > Thanks
> > Peter
> >
> > p.s.: experienced kernel developers welcome :)
> > _______________________________________________
> > Ksummit-discuss mailing list
> > Ksummit-discuss@xxxxxxxxxxxxxxxxxxxxxxxxx
> > https://lists.linuxfoundation.org/mailman/listinfo/ksummit-discuss
> 
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