linux-kernel - Re: [RFC/RFT v2 1/2] KEYS: trusted: create trusted keys subsystem

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Message-ID: <CAFA6WYOMXc2y=vXOwRv+PYyF8oBV70G7CrJ81jvD5yJT41zLZw@mail.gmail.com>
Date:   Mon, 5 Aug 2019 10:32:59 +0530
From:   Sumit Garg <sumit.garg@...aro.org>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     keyrings@...r.kernel.org, linux-integrity@...r.kernel.org,
        "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
        <linux-crypto@...r.kernel.org>,
        linux-security-module@...r.kernel.org, dhowells@...hat.com,
        Herbert Xu <herbert@...dor.apana.org.au>, davem@...emloft.net,
        jejb@...ux.ibm.com, Mimi Zohar <zohar@...ux.ibm.com>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "tee-dev @ lists . linaro . org" <tee-dev@...ts.linaro.org>
Subject: Re: [RFC/RFT v2 1/2] KEYS: trusted: create trusted keys subsystem

On Sat, 3 Aug 2019 at 01:08, Jarkko Sakkinen
<jarkko.sakkinen@...ux.intel.com> wrote:
>
> On Fri, Aug 02, 2019 at 11:20:09AM +0530, Sumit Garg wrote:
> > On Thu, 1 Aug 2019 at 22:54, Jarkko Sakkinen
> > <jarkko.sakkinen@...ux.intel.com> wrote:
> > >
> > > On Thu, Jul 18, 2019 at 04:54:45PM +0530, Sumit Garg wrote:
> > > > Move existing code to trusted keys subsystem. Also, rename files with
> > > > "tpm" as suffix which provides the underlying implementation.
> > > >
> > > > Suggested-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
> > > > Signed-off-by: Sumit Garg <sumit.garg@...aro.org>
> > >
> > > What about TPM2 trusted keys code?
> >
> > Isn't TPM2 code located here: "drivers/char/tpm/"? Would you like to
> > move that code under trusted keys subsystem only?
>
> Yeah, we need a design decision here. What I care is that they should
> be in the same subsystem. I did trusted keys directly to TPM 2.0 subsys
> because the subsystem was not too robust back then.
>
> Right now I think it would be feasible to implement TPM2 trusted keys
> outside TPM driver since the whole transmit functionality is way more
> robust.
>

Okay, I will try to move TPM2 trusted keys code also.

-Sumit

> /Jarkko