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

From Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session exhaustion
Date 2017-02-16 21:40 +0100
Message-ID <tbB0m-31F-21@gated-at.bofh.it> (permalink)
References (1 earlier) <t9nkS-6uq-25@gated-at.bofh.it> <taMAy-35w-17@gated-at.bofh.it> <taMAy-35w-15@gated-at.bofh.it> <tbAxl-2RL-63@gated-at.bofh.it> <tbAxl-2RL-61@gated-at.bofh.it>
Organization Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo

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On Thu, Feb 16, 2017 at 02:06:42PM -0600, Dr. Greg Wettstein wrote:
> Just as an aside, has anyone given any thought about TPM2 resource
> management in things like TXT/tboot environments?  The current tboot
> code makes a rather naive assumption that it can take a handle slot to
> protect its platform verification secret.  Doing resource management
> correctly will require addressing extra-OS environments such as this
> which may have TPM2 state requirement issues.

The current implementation handles stuff created from regular /dev/tpm0
so I do not think this would be an issue. You can only access objects
from a TPM space that are created within that space.

/Jarkko

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Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session exhaustion "Dr. Greg Wettstein" <gw@idfusion.org> - 2017-02-14 15:50 +0100
  Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session  exhaustion James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-14 17:50 +0100
  Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session exhaustion "Dr. Greg Wettstein" <greg@enjellic.com> - 2017-02-16 21:10 +0100
    Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session  exhaustion Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-16 21:40 +0100
      Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session exhaustion "Dr. Greg Wettstein" <greg@enjellic.com> - 2017-02-17 11:00 +0100
        Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session  exhaustion Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-17 13:40 +0100
          Re: [tpmdd-devel] [RFC] tpm2-space: add handling for global session exhaustion "Dr. Greg Wettstein" <greg@enjellic.com> - 2017-02-17 23:40 +0100

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