From: "Daniel P. Berrange" <berrange@redhat.com>
To: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>,
Stefan Berger <stefanb@us.ibm.com>,
"mst@redhat.com" <mst@redhat.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"hagen.lauer@huawei.com" <hagen.lauer@huawei.com>,
"Xu, Quan" <quan.xu@intel.com>,
"silviu.vlasceanu@gmail.com" <silviu.vlasceanu@gmail.com>,
"SERBAN, CRISTINA" <cs1731@att.com>,
"SHIH, CHING C" <cs1815@att.com>
Subject: Re: [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM
Date: Thu, 16 Jun 2016 09:25:17 +0100 [thread overview]
Message-ID: <20160616082517.GC11426@redhat.com> (raw)
In-Reply-To: <20160616080520.GA2249@work-vm>
On Thu, Jun 16, 2016 at 09:05:20AM +0100, Dr. David Alan Gilbert wrote:
> * Stefan Berger (stefanb@linux.vnet.ibm.com) wrote:
> > On 06/15/2016 03:30 PM, Dr. David Alan Gilbert wrote:
>
> <snip>
>
> > > So what was the multi-instance vTPM proxy driver patch set about?
> >
> > That's for containers.
>
> Why have the two mechanisms? Can you explain how the multi-instance
> proxy works; my brief reading when I saw your patch series seemed
> to suggest it could be used instead of CUSE for the non-container case.
One of the key things that was/is not appealing about this CUSE approach
is that it basically invents a new ioctl() mechanism for talking to
a TPM chardev. With in-kernel vTPM support, QEMU probably doesn't need
to have any changes at all - its existing driver for talking to TPM
char devices ought to just work. All that would be required is libvirt
support too configure the vTPM instances.
Regards,
Daniel
--
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next prev parent reply other threads:[~2016-06-16 8:25 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-04 15:23 [Qemu-devel] [PATCH v5 0/4] Extend TPM support with a QEMU-external TPM Stefan Berger
2016-01-04 15:23 ` [Qemu-devel] [PATCH v5 1/4] Provide support for the CUSE TPM Stefan Berger
2016-01-20 15:00 ` Daniel P. Berrange
2016-01-20 15:31 ` Stefan Berger
[not found] ` <201601201532.u0KFW2q2019737@d03av03.boulder.ibm.com>
2016-01-20 15:46 ` Daniel P. Berrange
2016-01-20 15:54 ` Stefan Berger
2016-01-20 16:03 ` Michael S. Tsirkin
2016-01-20 16:13 ` Stefan Berger
2016-01-20 16:22 ` Daniel P. Berrange
2016-01-21 11:36 ` Dr. David Alan Gilbert
2016-05-31 18:58 ` BICKFORD, JEFFREY E
2016-05-31 19:10 ` Dr. David Alan Gilbert
2016-06-01 22:54 ` BICKFORD, JEFFREY E
2016-06-13 10:56 ` Stefan Berger
2016-06-01 1:58 ` Xu, Quan
2016-06-13 11:02 ` Stefan Berger
2016-06-15 19:30 ` Dr. David Alan Gilbert
2016-06-15 20:54 ` Stefan Berger
2016-06-16 8:05 ` Dr. David Alan Gilbert
2016-06-16 8:25 ` Daniel P. Berrange [this message]
2016-06-16 15:20 ` Stefan Berger
2017-03-01 12:25 ` Stefan Berger
2017-03-01 12:54 ` Daniel P. Berrange
2017-03-01 13:25 ` Stefan Berger
2017-03-01 14:17 ` Marc-André Lureau
2017-03-01 14:50 ` Stefan Berger
2017-03-01 15:24 ` Marc-André Lureau
2017-03-01 15:58 ` Stefan Berger
2017-03-01 16:22 ` Michael S. Tsirkin
2017-03-01 16:31 ` Daniel P. Berrange
2017-03-01 16:57 ` Dr. David Alan Gilbert
2017-03-01 17:02 ` Michael S. Tsirkin
2017-03-01 17:12 ` Stefan Berger
2017-03-01 17:16 ` Michael S. Tsirkin
2017-03-01 17:20 ` Daniel P. Berrange
2017-03-01 18:03 ` Michael S. Tsirkin
2017-03-01 17:25 ` Stefan Berger
2017-03-01 17:38 ` Daniel P. Berrange
2017-03-01 17:58 ` Michael S. Tsirkin
2017-03-01 18:06 ` Dr. David Alan Gilbert
2017-03-01 18:09 ` Michael S. Tsirkin
2017-03-01 18:18 ` Dr. David Alan Gilbert
2017-03-01 18:30 ` Michael S. Tsirkin
2017-03-01 19:24 ` Stefan Berger
2017-03-01 23:36 ` Michael S. Tsirkin
2017-03-01 23:42 ` Michael S. Tsirkin
2017-03-01 18:11 ` Daniel P. Berrange
2017-03-01 18:20 ` Michael S. Tsirkin
2017-03-01 18:32 ` Marc-André Lureau
2017-03-01 18:56 ` Daniel P. Berrange
2017-03-01 19:18 ` Marc-André Lureau
2017-03-01 22:22 ` Michael S. Tsirkin
2017-03-01 17:36 ` Daniel P. Berrange
2017-03-01 15:18 ` Daniel P. Berrange
2017-03-01 15:40 ` Stefan Berger
2017-03-01 16:13 ` Daniel P. Berrange
2016-06-16 13:58 ` SERBAN, CRISTINA
2016-06-16 15:04 ` Stefan Berger
2016-06-16 15:22 ` Dr. David Alan Gilbert
2016-06-16 15:35 ` Stefan Berger
2016-06-16 17:54 ` Dr. David Alan Gilbert
2016-06-16 18:43 ` Stefan Berger
2016-06-16 19:24 ` Dr. David Alan Gilbert
2016-06-16 21:28 ` Stefan Berger
2017-02-28 18:31 ` Marc-André Lureau
2017-03-01 12:32 ` Stefan Berger
2016-01-28 13:15 ` Daniel P. Berrange
2016-01-28 14:51 ` Stefan Berger
2016-01-20 15:20 ` Michael S. Tsirkin
2016-01-20 15:36 ` Stefan Berger
[not found] ` <201601201536.u0KFanwG004844@d01av04.pok.ibm.com>
2016-01-20 15:58 ` Michael S. Tsirkin
2016-01-20 16:06 ` Stefan Berger
2016-01-20 18:54 ` Michael S. Tsirkin
2016-01-20 21:25 ` Stefan Berger
2016-01-21 5:08 ` Michael S. Tsirkin
2016-01-21 5:41 ` Xu, Quan
2016-01-21 9:19 ` Michael S. Tsirkin
2016-01-21 12:09 ` Stefan Berger
2016-01-20 16:15 ` Daniel P. Berrange
2016-01-04 15:23 ` [Qemu-devel] [PATCH v5 2/4] Introduce condition to notify waiters of completed command Stefan Berger
2016-01-04 15:23 ` [Qemu-devel] [PATCH v5 3/4] Introduce condition in TPM backend for notification Stefan Berger
2016-01-04 15:23 ` [Qemu-devel] [PATCH v5 4/4] Add support for VM suspend/resume for TPM TIS Stefan Berger
2016-01-05 1:26 ` [Qemu-devel] [PATCH v5 0/4] Extend TPM support with a QEMU-external TPM Xu, Quan
2016-01-05 3:36 ` Stefan Berger
2016-01-20 1:40 ` Xu, Quan
2016-01-20 9:23 ` Hagen Lauer
2016-01-20 9:41 ` Xu, Quan
2016-01-20 14:58 ` Daniel P. Berrange
2016-01-20 15:23 ` Stefan Berger
[not found] ` <201601201523.u0KFNwOH000398@d01av04.pok.ibm.com>
2016-01-20 15:42 ` Daniel P. Berrange
2016-01-20 19:51 ` Stefan Berger
[not found] ` <OF1010A111.39918A93-ON00257F40.006CA5ED-85257F40.006D2225@LocalDomain>
2016-01-20 20:16 ` Stefan Berger
2016-01-21 11:40 ` Dr. David Alan Gilbert
2016-01-21 12:31 ` Stefan Berger
[not found] ` <201601211231.u0LCVGCZ021111@d01av01.pok.ibm.com>
2016-01-21 14:53 ` Dr. David Alan Gilbert
[not found] ` <OF7ED031CA.CDD3196F-ON00257F41.004305BB-85257F41.0044C71A@LocalDomain>
2016-02-01 17:40 ` Stefan Berger
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