From: "Winkler, Tomas" <tomas.winkler@intel.com>
To: Javier Martinez Canillas <javierm@redhat.com>,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Jason Gunthorpe <jgg@ziepe.ca>
Cc: "Usyskin, Alexander" <alexander.usyskin@intel.com>,
"linux-integrity@vger.kernel.org"
<linux-integrity@vger.kernel.org>,
"linux-security-module@vger.kernel.org"
<linux-security-module@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 0/5 V2] tpm: timeouts revamp
Date: Tue, 6 Mar 2018 15:01:19 +0000 [thread overview]
Message-ID: <5B8DA87D05A7694D9FA63FD143655C1B9422F457@hasmsx108.ger.corp.intel.com> (raw)
In-Reply-To: <031568ca-8999-478d-8c53-8b206f312e90@redhat.com>
> On 03/06/2018 01:17 PM, Jarkko Sakkinen wrote:
> > On Tue, 2018-03-06 at 11:24 +0200, Tomas Winkler wrote:
> >> This series cleans up tpm timeouts setting and handling.
> >>
> >> First motivation was to fix failures coming from too short timeouts
> >> for commands that creates keys.
> >> Key generation may take significant time depending on the underlying
> >> hardware. Rather than increasing default timeout a new constant is
> >> added, to not stall too long on regular commands failures.
> >>
> >> Second is to define timeouts for new tpm2 commands defined in TCG
> >> 1.36 spec.
> >
>
> Probably a typo, since the latest TCG spec version is the 1.38 [0].
I have 1.36 as this is what we implement in the HW, but there might be a new one.
> > Where can we get that specification? I don't have that new version and
> > couldn't find it from the public internet.
>
> [0]: https://trustedcomputinggroup.org/tpm-library-specification/
>
Yes this is the place.
Thanks
Tomas
WARNING: multiple messages have this Message-ID (diff)
From: tomas.winkler@intel.com (Winkler, Tomas)
To: linux-security-module@vger.kernel.org
Subject: [PATCH 0/5 V2] tpm: timeouts revamp
Date: Tue, 6 Mar 2018 15:01:19 +0000 [thread overview]
Message-ID: <5B8DA87D05A7694D9FA63FD143655C1B9422F457@hasmsx108.ger.corp.intel.com> (raw)
In-Reply-To: <031568ca-8999-478d-8c53-8b206f312e90@redhat.com>
> On 03/06/2018 01:17 PM, Jarkko Sakkinen wrote:
> > On Tue, 2018-03-06 at 11:24 +0200, Tomas Winkler wrote:
> >> This series cleans up tpm timeouts setting and handling.
> >>
> >> First motivation was to fix failures coming from too short timeouts
> >> for commands that creates keys.
> >> Key generation may take significant time depending on the underlying
> >> hardware. Rather than increasing default timeout a new constant is
> >> added, to not stall too long on regular commands failures.
> >>
> >> Second is to define timeouts for new tpm2 commands defined in TCG
> >> 1.36 spec.
> >
>
> Probably a typo, since the latest TCG spec version is the 1.38 [0].
I have 1.36 as this is what we implement in the HW, but there might be a new one.
> > Where can we get that specification? I don't have that new version and
> > couldn't find it from the public internet.
>
> [0]: https://trustedcomputinggroup.org/tpm-library-specification/
>
Yes this is the place.
Thanks
Tomas
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next prev parent reply other threads:[~2018-03-06 15:01 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-06 9:24 [PATCH 0/5 V2] tpm: timeouts revamp Tomas Winkler
2018-03-06 9:24 ` Tomas Winkler
2018-03-06 9:24 ` [PATCH 1/5 V2] tpm: sort objects in the Makefile Tomas Winkler
2018-03-06 9:24 ` Tomas Winkler
2018-03-06 9:25 ` [PATCH 2/5 V2] tpm: factor out tpm 1.2 duration calculation to tpm1-cmd.c Tomas Winkler
2018-03-06 9:25 ` Tomas Winkler
2018-03-06 9:25 ` [PATCH 3/5 V2] tpm2: add longer timeouts for creation commands Tomas Winkler
2018-03-06 9:25 ` Tomas Winkler
2018-03-06 12:23 ` Jarkko Sakkinen
2018-03-06 12:23 ` Jarkko Sakkinen
2018-03-06 15:19 ` Winkler, Tomas
2018-03-06 15:19 ` Winkler, Tomas
2018-03-06 15:19 ` Winkler, Tomas
2018-03-10 11:21 ` Jarkko Sakkinen
2018-03-10 11:21 ` Jarkko Sakkinen
2018-03-06 9:25 ` [PATCH 4/5 V2] tpm2: add new tpm2 commands according to TCG 1.36 Tomas Winkler
2018-03-06 9:25 ` Tomas Winkler
2018-03-06 9:25 ` [PATCH 5/5 V2] tmp: factor out tpm_get_timeouts Tomas Winkler
2018-03-06 9:25 ` Tomas Winkler
2018-03-06 12:17 ` [PATCH 0/5 V2] tpm: timeouts revamp Jarkko Sakkinen
2018-03-06 12:17 ` Jarkko Sakkinen
2018-03-06 12:39 ` Javier Martinez Canillas
2018-03-06 12:39 ` Javier Martinez Canillas
2018-03-06 14:02 ` Jarkko Sakkinen
2018-03-06 14:02 ` Jarkko Sakkinen
2018-03-06 15:05 ` Winkler, Tomas
2018-03-06 15:05 ` Winkler, Tomas
2018-04-08 20:04 ` Ken Goldman
2018-03-06 15:01 ` Winkler, Tomas [this message]
2018-03-06 15:01 ` Winkler, Tomas
2018-04-08 20:01 ` Ken Goldman
2018-04-08 20:01 ` Ken Goldman
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