From: Tomas Winkler <tomas.winkler@intel.com>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Jason Gunthorpe <jgg@ziepe.ca>
Cc: Alexander Usyskin <alexander.usyskin@intel.com>,
linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org,
Tomas Winkler <tomas.winkler@intel.com>
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
WARNING: multiple messages have this Message-ID (diff)
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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next reply other threads:[~2018-01-28 7:53 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-28 7:50 Tomas Winkler [this message]
2018-01-28 7:50 ` [PATCH 0/2] tpm: fix locality and power saving handling Tomas Winkler
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 7:51 ` Tomas Winkler
2018-01-28 20:15 ` Jason Gunthorpe
2018-01-28 20:15 ` Jason Gunthorpe
2018-01-28 21:17 ` Winkler, Tomas
2018-01-28 21:17 ` Winkler, Tomas
2018-01-29 17:57 ` Jason Gunthorpe
2018-01-29 17:57 ` Jason Gunthorpe
2018-01-29 19:40 ` Winkler, Tomas
2018-01-29 19:40 ` Winkler, Tomas
2018-02-06 20:02 ` Jarkko Sakkinen
2018-02-06 20:02 ` Jarkko Sakkinen
2018-02-06 21:26 ` Winkler, Tomas
2018-02-06 21:26 ` Winkler, Tomas
2018-02-08 12:44 ` Jarkko Sakkinen
2018-02-08 12:44 ` Jarkko Sakkinen
2018-02-08 12:46 ` Winkler, Tomas
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
2018-01-28 7:51 ` Tomas Winkler
2018-02-06 20:04 ` Jarkko Sakkinen
2018-02-06 20:04 ` Jarkko Sakkinen
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