Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1563581

Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager via a device link /dev/tpms<n>

From Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager via a device link /dev/tpms<n>
Date 2017-01-20 14:40 +0100
Message-ID <t1HA5-7Ps-17@gated-at.bofh.it> (permalink)
References <t0fmx-Sv-5@gated-at.bofh.it> <t0fmy-Sv-23@gated-at.bofh.it> <t1025-5Fi-19@gated-at.bofh.it> <t1iBJ-uk-35@gated-at.bofh.it> <t1k0O-1tT-5@gated-at.bofh.it>
Organization Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo

Show all headers | View raw

On Thu, Jan 19, 2017 at 07:19:40AM -0500, James Bottomley wrote:
> On Thu, 2017-01-19 at 12:49 +0200, Jarkko Sakkinen wrote:
> > On Wed, Jan 18, 2017 at 10:01:03AM -0500, James Bottomley wrote:
> > > On Mon, 2017-01-16 at 15:12 +0200, Jarkko Sakkinen wrote:
> > > > From: James Bottomley <James.Bottomley@HansenPartnership.com>
> > > > 
> > > > Currently the Resource Manager (RM) is not exposed to userspace. 
> > > >  Make this exposure via a separate device, which can now be 
> > > > opened multiple times because each read/write transaction goes 
> > > > separately via the RM.
> > > > 
> > > > Concurrency is protected by the chip->tpm_mutex for each 
> > > > read/write transaction separately.  The TPM is cleared of all 
> > > > transient objects by the time the mutex is dropped, so there 
> > > > should be no interference between the kernel and userspace.
> > > 
> > > There's actually a missing kfree of context_buf on the tpms_release
> > > path as well.  This patch fixes it up.
> > 
> > Can you send me a fresh version of the whole patch so that I can 
> > include to v4 that includes also changes that I requested in my 
> > recent comments + all the fixes?
> 
> Sure, I think the attached is basically it
> 
> James

Thank you!

/Jarkko

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-18 16:10 +0100
  Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-19 12:00 +0100
    Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-19 13:30 +0100
      Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-20 14:40 +0100
        Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-20 22:10 +0100
          Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-21 20:30 +0100
            Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-22 16:00 +0100
          Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-21 21:50 +0100
            Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-22 16:00 +0100
          Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-22 18:50 +0100
            Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-22 19:50 +0100
              Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-22 21:40 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-22 22:10 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-22 22:40 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-23 15:10 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-23 17:20 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-24 13:10 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-23 18:00 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-23 22:50 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-23 23:20 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-25 14:50 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-25 14:50 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via a device link /dev/tpms<n> James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-01-27 03:00 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-27 07:50 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-25 21:30 +0100
                Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-22 22:10 +0100
            Re: [tpmdd-devel] [PATCH RFC v3 5/5] tpm2: expose resource manager  via    a device link /dev/tpms<n> Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-01-22 21:30 +0100

csiph-web