From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: tpmdd-devel@lists.sourceforge.net,
jgunthorpe@obsidianresearch.com, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, linux-api@vger.kernel.org
Subject: Re: [PATCH v6 08/11] tpm: Driver for supporting multiple emulated TPMs
Date: Fri, 11 Mar 2016 11:50:30 +0200 [thread overview]
Message-ID: <20160311095030.GA10270@intel.com> (raw)
In-Reply-To: <56E1AF44.9040807@linux.vnet.ibm.com>
On Thu, Mar 10, 2016 at 12:30:44PM -0500, Stefan Berger wrote:
> > Some might want to use this in a way that the created virtual device
> > is not closed when /dev/vtpmx is closed.
>
> I don't see that happening. If you want the device pair to stay around after
> an application terminates, you have to pass the file descriptor returned
> from the ioctl to an application.
Right, so it is. So the device pair dissappears either by closing the
returned fd (by the ioctl) or when application terminates. No extra
ioctls would be needed.
> Stefan
/Jarkko
next prev parent reply other threads:[~2016-03-11 9:50 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-09 17:39 [PATCH v6 00/11] Multi-instance vTPM driver Stefan Berger
[not found] ` <1457545170-30120-1-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-03-09 17:39 ` [PATCH v6 01/11] tpm: Get rid of chip->pdev Stefan Berger
2016-03-09 17:39 ` [PATCH v6 02/11] tpm: Get rid of devname Stefan Berger
2016-03-09 17:39 ` [PATCH v6 03/11] tpm: Provide strong locking for device removal Stefan Berger
2016-03-09 17:39 ` [PATCH v6 04/11] tpm: Get rid of module locking Stefan Berger
2016-03-09 17:39 ` [PATCH v6 05/11] tpm: Split out the devm stuff from tpmm_chip_alloc Stefan Berger
2016-03-09 17:39 ` [PATCH v6 06/11] tpm: Replace device number bitmap with IDR Stefan Berger
[not found] ` <1457545170-30120-7-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-03-10 13:21 ` Jarkko Sakkinen
[not found] ` <20160310132156.GA16320-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-03-10 16:26 ` Stefan Berger
[not found] ` <201603101622.u2AGMCv3031274@d01av05.pok.ibm.com>
[not found] ` <201603101622.u2AGMCv3031274-8DuMPbUlb4HImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-03-10 16:40 ` Jarkko Sakkinen
2016-03-09 17:39 ` [PATCH v6 07/11] tpm: Introduce TPM_CHIP_FLAG_VIRTUAL Stefan Berger
2016-03-09 17:39 ` [PATCH v6 08/11] tpm: Driver for supporting multiple emulated TPMs Stefan Berger
[not found] ` <1457545170-30120-9-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-03-09 18:01 ` Andy Lutomirski
[not found] ` <CALCETrXDfHRdFnqK15o1yD8106sn4e6Susr9j7=GGi4sb-p0qQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-09 18:44 ` Stefan Berger
2016-03-10 16:39 ` Jarkko Sakkinen
[not found] ` <20160310163915.GA4863-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-03-10 17:30 ` Stefan Berger
2016-03-11 9:50 ` Jarkko Sakkinen [this message]
2016-03-10 17:32 ` Stefan Berger
[not found] ` <56E1AF9F.3010409-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-03-11 10:20 ` Jarkko Sakkinen
2016-03-10 22:12 ` Jason Gunthorpe
2016-03-10 14:15 ` Jarkko Sakkinen
2016-03-09 17:39 ` [PATCH v6 09/11] tpm: Initialize TPM and get durations and timeouts Stefan Berger
2016-03-09 17:39 ` [PATCH v6 10/11] tpm: Add documentation for the tpm_vtpm device driver Stefan Berger
2016-03-09 17:39 ` [PATCH v6 11/11] A test program for vTPM device creation Stefan Berger
[not found] ` <1457545170-30120-12-git-send-email-stefanb-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2016-03-10 20:57 ` [PATCH v6 11/11] A test program for vTPM devicecreation Stefan Berger
[not found] ` <201603102058.u2AKw7Ie013400@d01av04.pok.ibm.com>
[not found] ` <201603102058.u2AKw7Ie013400-YREtIfBy6dDImUpY6SP3GEEOCMrvLtNR@public.gmane.org>
2016-03-11 10:30 ` Jarkko Sakkinen
[not found] ` <20160311103001.GA13368-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-03-11 13:16 ` Stefan Berger
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