linux-kernel - Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session exhaustion

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Date:   Thu, 09 Feb 2017 11:24:15 -0800
From:   James Bottomley <James.Bottomley@...senPartnership.com>
To:     greg@...ellic.com,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     Ken Goldman <kgoldman@...ibm.com>,
        tpmdd-devel@...ts.sourceforge.net,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session
 exhaustion

On Thu, 2017-02-09 at 03:06 -0600, Dr. Greg Wettstein wrote:
> Referring back to Ken's comments about having 20+ clients waiting to
> get access to the hardware.  Even with the focus in TPM2 on having it
> be more of a cryptographic accelerator are we convinced that the
> hardware is ever going to be fast enough for a model of having it
> directly service large numbers of transactions in something like a
> 'cloud' model?

It's already in use as such today:

https://tectonic.com/assets/pdf/TectonicTrustedComputing.pdf

We're also planning something like this in the IBM Cloud.

James