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From: tomas.winkler@intel.com (Tomas Winkler)
To: linux-security-module@vger.kernel.org
Subject: [PATCH 0/2] tpm: fix locality and power saving handling
Date: Sun, 28 Jan 2018 09:50:59 +0200	[thread overview]
Message-ID: <20180128075101.6883-1-tomas.winkler@intel.com> (raw)

Devices that support locality has failed to transmit due to
reserved order of locality request and cmdReady/goIdle handshake.
The cmdReady/goIdle should be performed on the requested locality.

The first patch corrects the locality and power-save order,
adds required polling for completion of goIdle and locality relinquish.

The second patch removes cmdRead/goIdle handshake from runtime_pm as it's
rather a part of TPM2 protocol  then true device power management,
and on device it's no longer optional.

Tomas Winkler (2):
  tpm: cmd_ready command can be issued only after granting locality
  tpm: separate cmd_ready/go_idle from runtime_pm

 drivers/char/tpm/tpm-interface.c |  21 ++++--
 drivers/char/tpm/tpm_crb.c       | 157 +++++++++++++++++++++++----------------
 drivers/char/tpm/tpm_tis_core.c  |   4 +-
 include/linux/tpm.h              |   4 +-
 4 files changed, 115 insertions(+), 71 deletions(-)

-- 
2.14.3

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             reply	other threads:[~2018-01-28  7:50 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-28  7:50 Tomas Winkler [this message]
2018-01-28  7:51 ` [PATCH 1/2 v2] tpm: cmd_ready command can be issued only after granting locality Tomas Winkler
2018-01-28 20:15   ` Jason Gunthorpe
2018-01-28 21:17     ` Winkler, Tomas
2018-01-29 17:57       ` Jason Gunthorpe
2018-01-29 19:40         ` Winkler, Tomas
2018-02-06 20:02       ` Jarkko Sakkinen
2018-02-06 21:26         ` Winkler, Tomas
2018-02-08 12:44           ` Jarkko Sakkinen
2018-02-08 12:46             ` Winkler, Tomas
2018-01-28  7:51 ` [PATCH 2/2 v2] tpm: separate cmd_ready/go_idle from runtime_pm Tomas Winkler
2018-02-06 20:04   ` Jarkko Sakkinen

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