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Re: [PATCH v2 4/7] tpm: infrastructure for TPM spaces

From James Bottomley <James.Bottomley@HansenPartnership.com>
Newsgroups linux.kernel
Subject Re: [PATCH v2 4/7] tpm: infrastructure for TPM spaces
Date 2017-02-24 14:00 +0100
Message-ID <tenDC-eO-63@gated-at.bofh.it> (permalink)
References <tbzUB-2oT-3@gated-at.bofh.it> <tbzUC-2oT-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, 2017-02-16 at 21:25 +0200, Jarkko Sakkinen wrote:
> Added an ability to virtualize TPM commands into an isolated context
> that we call a TPM space because the word context is already heavily
> used in the TPM specification. Both the handle areas and bodies
> (where
> necessary) are virtualized.
> 
> The mechanism works by adding a new parameter struct tpm_space to the
> tpm_transmit() function. This new structure contains the list of
> virtual
> handles and a buffer of page size (currently) for backing storage.
> 
> When tpm_transmit() is called with a struct tpm_space instance it
> will
> execute the following sequence:
> 
> 1. Take locks.
> 2. Load transient objects from the backing storage by using
> ContextLoad
>    and map virtual handles to physical handles.
> 3. Perform the transaction.
> 4. Save transient objects to backing storage by using ContextSave and
>    map resulting physical handle to virtual handle if there is such.
> 
> This commit does not implement virtualization support for hmac and
> policy sessions.
> 
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

For patches 1-4 you can add 

Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com>

Just re-running a build with the latest kernel for my laptop to add
tested by.

James

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[PATCH v2 0/7] in-kernel resource manager Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-16 20:30 +0100
  [PATCH v2 1/7] tpm: move length validation to tpm_transmit() Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-16 20:30 +0100
  [PATCH v2 7/7] tpm2: add session handle context saving and restoring to the space code Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-16 20:30 +0100
    Re: [PATCH v2 7/7] tpm2: add session handle context saving and  restoring to the space code Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-23 10:10 +0100
  [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-16 20:30 +0100
    Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-23 10:10 +0100
      Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-24 14:10 +0100
        Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-24 18:40 +0100
          Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-02-24 19:20 +0100
            Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-24 21:30 +0100
              Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-02-24 22:00 +0100
                Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device  link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-25 00:10 +0100
                Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device  link /dev/tpms<n> Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-02-25 00:30 +0100
                Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device  link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-25 00:50 +0100
                Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device  link /dev/tpms<n> Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-02-25 01:30 +0100
                Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device  link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-25 18:10 +0100
                Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device  link /dev/tpms<n> Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-02-27 18:40 +0100
        Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-26 12:50 +0100
          Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> "Dr. Greg Wettstein" <greg@enjellic.com> - 2017-02-26 19:40 +0100
            Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> Ken Goldman <kgold@linux.vnet.ibm.com> - 2017-02-28 20:00 +0100
          Re: [PATCH v2 6/7] tpm: expose spaces via a device link /dev/tpms<n> Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-02-27 18:40 +0100
    Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device link  /dev/tpms<n> Nayna <nayna@linux.vnet.ibm.com> - 2017-02-24 08:10 +0100
      Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device  link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-24 14:00 +0100
        Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device link  /dev/tpms<n> Nayna <nayna@linux.vnet.ibm.com> - 2017-02-27 12:50 +0100
          Re: [tpmdd-devel] [PATCH v2 6/7] tpm: expose spaces via a device  link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-27 16:10 +0100
  [PATCH v2 4/7] tpm: infrastructure for TPM spaces Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-16 20:30 +0100
    Re: [tpmdd-devel] [PATCH v2 4/7] tpm: infrastructure for TPM spaces Nayna <nayna@linux.vnet.ibm.com> - 2017-02-21 19:30 +0100
      Re: [tpmdd-devel] [PATCH v2 4/7] tpm: infrastructure for TPM spaces James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-22 18:40 +0100
        Re: [tpmdd-devel] [PATCH v2 4/7] tpm: infrastructure for TPM spaces Ken Goldman <kgold@linux.vnet.ibm.com> - 2017-02-22 22:00 +0100
      Re: [tpmdd-devel] [PATCH v2 4/7] tpm: infrastructure for TPM spaces Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-22 22:20 +0100
      Re: [tpmdd-devel] [PATCH v2 4/7] tpm: infrastructure for TPM spaces Ken Goldman <kgold@linux.vnet.ibm.com> - 2017-02-22 22:30 +0100
    Re: [PATCH v2 4/7] tpm: infrastructure for TPM spaces James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-02-24 14:00 +0100
      Re: [PATCH v2 4/7] tpm: infrastructure for TPM spaces Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-02-24 18:10 +0100

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