From: jarkko.sakkinen@linux.intel.com (Jarkko Sakkinen)
To: linux-security-module@vger.kernel.org
Subject: [PATCH] tpm_crb: request and relinquish locality 0
Date: Sat, 11 Mar 2017 10:15:32 +0200 [thread overview]
Message-ID: <20170311081532.qfxwrx3xqjzoppa2@intel.com> (raw)
In-Reply-To: <20170311002709.GA14174@obsidianresearch.com>
On Fri, Mar 10, 2017 at 05:27:09PM -0700, Jason Gunthorpe wrote:
> On Sat, Mar 11, 2017 at 01:58:00AM +0200, Jarkko Sakkinen wrote:
> > Added two new callbacks to struct tpm_class_ops:
> >
> > - request_locality
> > - relinquish_locality
> >
> > These are called before sending and receiving data from the TPM.
>
> If we are going to add new ops, I think we should also adjust the
> existing drivers to use this mechanism as well?
>
> eg tis just calls its request_locality as the first thing in send..
>
> Jason
Would it be sufficient to adjust tpm_tis in addition to tpm_crb? Those
are the only once where I can edit edit-compile-run cycle.
The original commit I did worked on SKL platform that I tested but fails
on KBL but keeping the locality throughout the transmit makes it stable
on every platform I've tested.
/Jarkko
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prev parent reply other threads:[~2017-03-11 8:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-10 23:58 [PATCH] tpm_crb: request and relinquish locality 0 Jarkko Sakkinen
2017-03-11 0:27 ` Jason Gunthorpe
2017-03-11 8:15 ` Jarkko Sakkinen [this message]
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