From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: tpmdd-devel@lists.sourceforge.net,
linux-security-module@vger.kernel.org,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [tpmdd-devel] [PATCH 2/2] tpm2: context save and restore space managed sessions
Date: Thu, 19 Jan 2017 07:13:12 -0500 [thread overview]
Message-ID: <1484827992.3140.9.camel@HansenPartnership.com> (raw)
In-Reply-To: <20170119120400.ntvkkukm6oektvnj@intel.com>
On Thu, 2017-01-19 at 14:04 +0200, Jarkko Sakkinen wrote:
> On Wed, Jan 18, 2017 at 10:10:42AM -0500, James Bottomley wrote:
> > Now that sessions are isolated, we can introduce a session_buf in
> > the tpm2 space to save and restore them. This allows us to have
> > many more sessions active simultaneously (up to
> > TPM_PT_MAX_SESSIONS). As part of this, we must intercept and
> > manually remove contexts for flushed sessions.
>
> Again I don't understand the interception part. Like with transient
> objects I just catch TPM_RC_HANDLE error and forget them in the save
> part.
it's for the global session tracking patch (see other email for
details)
> PS. Do you mind if I take part of the patch that encapsulates a
> single context save as of my patch that implements transient object
> swapping? It merely moves the code in there to a different location.
> Would just make the patch set cleaner. I would do this for v4 of the
> patch set.
Sure. Rebase should be able to do this easily for me.
James
prev parent reply other threads:[~2017-01-19 12:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-18 15:08 [PATCH 0/2] Add session isolation and context saving to the space manager James Bottomley
2017-01-18 15:09 ` [PATCH 1/2] tpm2: add session handle isolation to tpm spaces James Bottomley
2017-01-19 11:58 ` [tpmdd-devel] " Jarkko Sakkinen
2017-01-19 12:11 ` James Bottomley
2017-01-20 13:23 ` Jarkko Sakkinen
2017-01-20 14:39 ` James Bottomley
2017-01-20 17:57 ` Jarkko Sakkinen
[not found] ` <o5t6ns$k6e$1@blaine.gmane.org>
2017-01-20 20:51 ` Jarkko Sakkinen
2017-01-18 15:10 ` [PATCH 2/2] tpm2: context save and restore space managed sessions James Bottomley
2017-01-19 12:04 ` [tpmdd-devel] " Jarkko Sakkinen
2017-01-19 12:13 ` James Bottomley [this message]
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