linux-kernel - Re: [PATCH v2 1/2] tpm2: add session handle context saving and restoring to the space code

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Message-ID: <o6m1oe$qhp$2@blaine.gmane.org>
Date:   Sun, 29 Jan 2017 19:35:32 -0500
From:   Ken Goldman <kgoldman@...ibm.com>
To:     linux-kernel@...r.kernel.org
Cc:     tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] tpm2: add session handle context saving and
 restoring to the space code

On 1/27/2017 7:32 PM, James Bottomley wrote:
>
> Sessions are also isolated during each instance of a tpm space.  This
> means that spaces shouldn't be able to see each other's sessions and
> is enforced by ensuring that a space user may only refer to sessions
> handles that are present in their own chip->session_tbl.  Finally when
> a space is closed, all the sessions belonging to it should be flushed
> so the handles may be re-used by other spaces.

This should be true for transient objects as well.