linux-security-module.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-integrity@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	Peter Huewe <PeterHuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
	Tomas Winkler <tomas.winkler@intel.com>,
	Tadeusz Struk <tadeusz.struk@intel.com>,
	Stefan Berger <stefanb@linux.vnet.ibm.com>,
	Nayna Jain <nayna@linux.ibm.com>
Subject: Re: [PATCH v11 00/16] Remove nested TPM operations
Date: Wed, 6 Feb 2019 14:06:34 +0200	[thread overview]
Message-ID: <20190206120634.GA4680@linux.intel.com> (raw)
In-Reply-To: <20190205224723.19671-1-jarkko.sakkinen@linux.intel.com>

On Wed, Feb 06, 2019 at 12:47:07AM +0200, Jarkko Sakkinen wrote:
> Make the changes necessary to detach TPM space code and TPM activation
> code out of the tpm_transmit() flow because of both of these can cause
> nested tpm_transmit() calls. The nesteds calls make the whole flow hard
> to maintain, and thus, it is better to just fix things now before this
> turns into a bigger mess.
> 
> v11:
> * Drop the patch that tries to flush TPM space on system. Not a proper
>   fallback + out of scope for this patch set.
> 
> v10:
> * Use void pointers to avoid unnecessary casts in functions paramaters
>   where it makes sense.
> 
> v9:
> * Fixed again tpm_try_get_ops().
> * Added missing reviewed-by's.
> 
> v8:
> * Re-add the check for ret < 0 after calling tpm_try_transmit() that
>   was dropped by mistake while moving code.
> * Fix error fallback for tpm_try_get_ops() when tpm_chip_start()
>   fails.
> 
> v7:
> *  Reorganize series so that more trivial and self-contained changes are
>    in the head.
> 
> v6:
> * When tpm_validate_commmand() was moved to tpm2-space.c, the struct for
>   the TPM header was incorrectly declared as struct tpm_input_header.
> * Fix return value in tpm_validate_command().
> 
> v5:
> * Add the missing rev's from Stefan Berger.
> 
> v4:
> * Return 0 from pcrs_show() when tpm1_pcr_read() fails.
> * Fix error handling flow in tpm_try_transmit().
> * Replace struct tpm_input_header and struct tpm_output_header with
>   struct tpm_header.
> 
> v3:
> * Encapsulate power gating code to tpm_chip_start() and tpm_chip_stop().
> * Move TPM power gating code and locking to tpm_try_get_ops() and
>   tpm_put_ops().
> * Call power gating code directly in tpm_chip_register() and
>   tpm2_del_space().
> 
> v2:
> * Print tpm2_commit_space() error inside tpm2_commit_space()
> * Error code was not printed when recv() callback failed. It is
>   fixed in this version.
> * Added a patch that removes @space from tpm_transmit().
> * Fixed a regression in earlier series. Forgot to amend the change
>   from the staging area that renames NESTED to UNLOCKED in tpm2-space.c.
> 
> Jarkko Sakkinen (16):
>   tpm: use tpm_buf in tpm_transmit_cmd() as the IO parameter
>   tpm: fix invalid return value in pubek_show()
>   tpm: return 0 from pcrs_show() when tpm1_pcr_read() fails
>   tpm: print tpm2_commit_space() error inside tpm2_commit_space()
>   tpm: declare struct tpm_header
>   tpm: access command header through struct in tpm_try_transmit()
>   tpm: encapsulate tpm_dev_transmit()
>   tpm: clean up tpm_try_transmit() error handling flow
>   tpm: move tpm_validate_commmand() to tpm2-space.c
>   tpm: move TPM space code out of tpm_transmit()
>   tpm: remove @space from tpm_transmit()
>   tpm: use tpm_try_get_ops() in tpm-sysfs.c.
>   tpm: remove TPM_TRANSMIT_UNLOCKED flag
>   tpm: introduce tpm_chip_start() and tpm_chip_stop()
>   tpm: take TPM chip power gating out of tpm_transmit()
>   tpm: remove @flags from tpm_transmit()
> 
>  drivers/char/tpm/tpm-chip.c       | 109 ++++++++++++
>  drivers/char/tpm/tpm-dev-common.c |  44 ++++-
>  drivers/char/tpm/tpm-interface.c  | 264 ++++++------------------------
>  drivers/char/tpm/tpm-sysfs.c      | 138 ++++++++++------
>  drivers/char/tpm/tpm.h            |  64 +++-----
>  drivers/char/tpm/tpm1-cmd.c       |  28 +---
>  drivers/char/tpm/tpm2-cmd.c       |  72 +++-----
>  drivers/char/tpm/tpm2-space.c     |  91 +++++++---
>  drivers/char/tpm/tpm_i2c_atmel.c  |   5 +-
>  drivers/char/tpm/tpm_vtpm_proxy.c |  12 +-
>  drivers/char/tpm/xen-tpmfront.c   |   2 +-
>  11 files changed, 408 insertions(+), 421 deletions(-)
> 
> -- 
> 2.19.1
> 

Applied to master and next.

/Jarkko

  parent reply	other threads:[~2019-02-06 12:06 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-05 22:47 [PATCH v11 00/16] Remove nested TPM operations Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 01/16] tpm: use tpm_buf in tpm_transmit_cmd() as the IO parameter Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 02/16] tpm: fix invalid return value in pubek_show() Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 03/16] tpm: return 0 from pcrs_show() when tpm1_pcr_read() fails Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 04/16] tpm: print tpm2_commit_space() error inside tpm2_commit_space() Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 05/16] tpm: declare struct tpm_header Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 06/16] tpm: access command header through struct in tpm_try_transmit() Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 07/16] tpm: encapsulate tpm_dev_transmit() Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 08/16] tpm: clean up tpm_try_transmit() error handling flow Jarkko Sakkinen
2019-02-07 23:36   ` Stefan Berger
2019-02-05 22:47 ` [PATCH v11 09/16] tpm: move tpm_validate_commmand() to tpm2-space.c Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 10/16] tpm: move TPM space code out of tpm_transmit() Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 11/16] tpm: remove @space from tpm_transmit() Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 12/16] tpm: use tpm_try_get_ops() in tpm-sysfs.c Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 13/16] tpm: remove TPM_TRANSMIT_UNLOCKED flag Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 14/16] tpm: introduce tpm_chip_start() and tpm_chip_stop() Jarkko Sakkinen
2019-02-05 22:47 ` [PATCH v11 15/16] tpm: take TPM chip power gating out of tpm_transmit() Jarkko Sakkinen
2019-02-07 23:32   ` Stefan Berger
2019-02-08  0:02     ` Jerry Snitselaar
2019-02-05 22:47 ` [PATCH v11 16/16] tpm: remove @flags from tpm_transmit() Jarkko Sakkinen
2019-02-06 12:06 ` Jarkko Sakkinen [this message]
2019-02-07 18:41   ` [PATCH v11 00/16] Remove nested TPM operations Alexander Steffen
2019-02-07 21:14     ` Stefan Berger
2019-02-07 21:29     ` Jarkko Sakkinen
2019-02-07 23:29       ` Stefan Berger
2019-02-08  0:33         ` Jarkko Sakkinen
2019-02-08  1:51           ` Stefan Berger
2019-02-08  2:14             ` Stefan Berger
2019-02-08 11:50               ` Jarkko Sakkinen
2019-02-08 12:22                 ` Stefan Berger
2019-02-08 13:12                   ` Jarkko Sakkinen
2019-02-08 13:28               ` Alexander Steffen
2019-02-08 14:09                 ` Jarkko Sakkinen
2019-02-08 18:02                   ` Alexander Steffen
2019-02-08 11:14             ` Jarkko Sakkinen
2019-02-08 12:05               ` Stefan Berger
2019-02-08 13:02                 ` Jarkko Sakkinen
2019-02-08 13:10                   ` Stefan Berger
2019-02-08 13:17                     ` Jarkko Sakkinen
2019-02-08 13:33                       ` Jarkko Sakkinen
2019-02-08 14:02                         ` Stefan Berger
2019-02-08 14:08                           ` Jarkko Sakkinen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190206120634.GA4680@linux.intel.com \
    --to=jarkko.sakkinen@linux.intel.com \
    --cc=PeterHuewe@gmx.de \
    --cc=jgg@ziepe.ca \
    --cc=linux-integrity@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-security-module@vger.kernel.org \
    --cc=nayna@linux.ibm.com \
    --cc=stefanb@linux.vnet.ibm.com \
    --cc=tadeusz.struk@intel.com \
    --cc=tomas.winkler@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).