From: "Zhu, Lingshan" <lingshan.zhu@intel.com>
To: Parav Pandit <parav@nvidia.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"eperezma@redhat.com" <eperezma@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Jason Wang <jasowang@redhat.com>
Cc: "virtio-dev@lists.oasis-open.org"
<virtio-dev@lists.oasis-open.org>,
"virtio-comment@lists.oasis-open.org"
<virtio-comment@lists.oasis-open.org>
Subject: Re: [virtio-dev] Re: [PATCH 0/5] virtio: introduce SUSPEND bit and vq state
Date: Thu, 21 Sep 2023 17:55:06 +0800 [thread overview]
Message-ID: <c1afd674-28bb-d8d4-7eee-ab1916a3f947@intel.com> (raw)
In-Reply-To: <PH0PR12MB548188F479E7D7FF56845F39DCF8A@PH0PR12MB5481.namprd12.prod.outlook.com>
On 9/21/2023 5:26 PM, Parav Pandit wrote:
>
>> From: Zhu, Lingshan <lingshan.zhu@intel.com>
>> Sent: Thursday, September 21, 2023 2:49 PM
>> TDISP devices can not be migrated for now, and the TDISP spec make clear
>> examples of attacking models, your admin vq LM on the PF exactly match the
>> model.
> I gave hint yesterday to you to consult Ravi at Intel who showed TDISP migration using a dedicated TVM using similar mechanism as admin command.
> But you sadly ignored...
>
> So let me make another attempt to explain,
>
> When in future TDISP device migration to be supported, the admin command will be done through a dedicated PF or a VF that resides in another trust domain, for example another TVM.
> Such admin virtio device will not be located in the hypervisor.
> Thereby, it will be secure.
> The admin commands pave the road to make this happen. Only thing changes is delegation of admin commands to another admin device instead of a PF.
if you plan to do it in future, then lets discuss in the future.
And TDISP can be migrated in future does not mean admin vq LM is secure,
I have repeated for so many times of the attacking model. and I will not
repeat again.
>
> There are other solutions too that will arise.
> I have seen another one too, may be DPU.
>
> In all the 2 approaches, TDISP is migratable and spec will evolve as multiple vendors including Intel, AMD and others showed the path towards it without mediation.
> Virtio will be able to leverage that as well using admin commands.
>
> I want to emphasize again, do not keep repeating AQ in your comments.
> It is admin commands in proposal [1].
we are discussing LM, right? Can TDISP help you here? TDISP spec gives
examples of attacking models, and your admin vq matches it, I gave you
quote of the spec yesterday.
This thread is about live migration anyway, not TDISP.
>
> As Michael also requested, I kindly request to co-operate on doing join technical work, shared ideas, knowledge and improve the spec.
>
> [1] https://lore.kernel.org/virtio-comment/20230909142911.524407-7-parav@nvidia.com/T/#mf15b68617f772770c6bf79f70e8ddc6fea834cfa
see other threads, I propose to reuse the basic facilities of live
migration in admin vq.
>
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next prev parent reply other threads:[~2023-09-21 9:55 UTC|newest]
Thread overview: 269+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-06 8:16 [virtio-dev] [PATCH 0/5] virtio: introduce SUSPEND bit and vq state Zhu Lingshan
2023-09-06 8:16 ` [virtio-dev] [PATCH 1/5] virtio: introduce vq state as basic facility Zhu Lingshan
2023-09-06 8:28 ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-09-06 9:43 ` Zhu, Lingshan
2023-09-14 11:25 ` Michael S. Tsirkin
2023-09-15 2:46 ` Zhu, Lingshan
2023-09-06 8:16 ` [virtio-dev] [PATCH 2/5] virtio: introduce SUSPEND bit in device status Zhu Lingshan
2023-09-14 11:34 ` [virtio-dev] " Michael S. Tsirkin
2023-09-15 2:57 ` Zhu, Lingshan
2023-09-15 11:10 ` Michael S. Tsirkin
2023-09-18 2:56 ` Zhu, Lingshan
2023-09-18 4:42 ` [virtio-dev] RE: [virtio-comment] " Parav Pandit
2023-09-18 5:14 ` [virtio-dev] " Zhu, Lingshan
2023-09-18 6:17 ` [virtio-dev] " Parav Pandit
2023-09-18 6:38 ` [virtio-dev] " Zhu, Lingshan
2023-09-18 6:46 ` [virtio-dev] " Parav Pandit
2023-09-18 6:49 ` [virtio-dev] " Zhu, Lingshan
2023-09-18 6:50 ` [virtio-dev] " Zhu, Lingshan
2023-09-06 8:16 ` [virtio-dev] [PATCH 3/5] virtqueue: constraints for virtqueue state Zhu Lingshan
2023-09-14 11:30 ` [virtio-dev] " Michael S. Tsirkin
2023-09-15 2:59 ` Zhu, Lingshan
2023-09-15 11:16 ` Michael S. Tsirkin
2023-09-18 3:02 ` [virtio-dev] Re: [virtio-comment] " Zhu, Lingshan
2023-09-18 17:30 ` Michael S. Tsirkin
2023-09-19 7:56 ` Zhu, Lingshan
2023-09-06 8:16 ` [virtio-dev] [PATCH 4/5] virtqueue: ignore resetting vqs when SUSPEND Zhu Lingshan
2023-09-14 11:09 ` [virtio-dev] " Michael S. Tsirkin
2023-09-15 4:06 ` Zhu, Lingshan
2023-09-06 8:16 ` [virtio-dev] [PATCH 5/5] virtio-pci: implement VIRTIO_F_QUEUE_STATE Zhu Lingshan
2023-09-06 8:32 ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-09-06 8:37 ` [virtio-dev] " Parav Pandit
2023-09-06 9:37 ` [virtio-dev] " Zhu, Lingshan
2023-09-11 3:01 ` Jason Wang
2023-09-11 4:11 ` [virtio-dev] " Parav Pandit
2023-09-11 6:30 ` [virtio-dev] " Jason Wang
2023-09-11 6:47 ` [virtio-dev] " Parav Pandit
2023-09-11 6:58 ` [virtio-dev] " Zhu, Lingshan
2023-09-11 7:07 ` [virtio-dev] " Parav Pandit
2023-09-11 7:18 ` [virtio-dev] " Zhu, Lingshan
2023-09-11 7:30 ` [virtio-dev] " Parav Pandit
2023-09-11 7:58 ` [virtio-dev] " Zhu, Lingshan
2023-09-11 8:12 ` [virtio-dev] " Parav Pandit
2023-09-11 8:46 ` [virtio-dev] " Zhu, Lingshan
2023-09-11 9:05 ` [virtio-dev] " Parav Pandit
2023-09-11 9:32 ` [virtio-dev] " Zhu, Lingshan
2023-09-11 10:21 ` [virtio-dev] " Parav Pandit
2023-09-12 4:06 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 5:58 ` [virtio-dev] " Parav Pandit
2023-09-12 6:33 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 6:47 ` [virtio-dev] " Parav Pandit
2023-09-12 7:27 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 7:40 ` [virtio-dev] " Parav Pandit
2023-09-12 9:02 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 9:21 ` [virtio-dev] " Parav Pandit
2023-09-12 13:03 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 13:43 ` [virtio-dev] " Parav Pandit
2023-09-13 4:01 ` [virtio-dev] " Zhu, Lingshan
2023-09-13 4:12 ` [virtio-dev] " Parav Pandit
2023-09-13 4:20 ` [virtio-dev] " Zhu, Lingshan
2023-09-13 4:36 ` [virtio-dev] " Parav Pandit
2023-09-14 8:19 ` [virtio-dev] " Zhu, Lingshan
2023-09-11 11:50 ` [virtio-dev] " Parav Pandit
2023-09-12 3:43 ` [virtio-dev] " Jason Wang
2023-09-12 5:50 ` [virtio-dev] " Parav Pandit
2023-09-13 4:44 ` [virtio-dev] " Jason Wang
2023-09-13 6:05 ` [virtio-dev] " Parav Pandit
2023-09-14 3:11 ` [virtio-dev] " Jason Wang
2023-09-17 5:22 ` [virtio-dev] " Parav Pandit
2023-09-19 4:35 ` [virtio-dev] " Jason Wang
2023-09-19 7:33 ` [virtio-dev] " Parav Pandit
2023-09-12 3:48 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 5:51 ` [virtio-dev] " Parav Pandit
2023-09-12 6:37 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 6:49 ` [virtio-dev] " Parav Pandit
2023-09-12 7:29 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 7:53 ` [virtio-dev] " Parav Pandit
2023-09-12 9:06 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 9:08 ` Zhu, Lingshan
2023-09-12 9:35 ` [virtio-dev] " Parav Pandit
2023-09-12 10:14 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 10:16 ` [virtio-dev] " Parav Pandit
2023-09-12 10:28 ` [virtio-dev] " Zhu, Lingshan
2023-09-13 2:23 ` [virtio-dev] " Parav Pandit
2023-09-13 4:03 ` [virtio-dev] " Zhu, Lingshan
2023-09-13 4:15 ` [virtio-dev] " Parav Pandit
2023-09-13 4:21 ` [virtio-dev] " Zhu, Lingshan
2023-09-13 4:37 ` [virtio-dev] " Parav Pandit
2023-09-14 3:11 ` [virtio-dev] " Jason Wang
2023-09-17 5:25 ` [virtio-dev] " Parav Pandit
2023-09-19 4:34 ` [virtio-dev] " Jason Wang
2023-09-19 7:32 ` [virtio-dev] " Parav Pandit
2023-09-14 8:22 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 9:28 ` [virtio-dev] " Parav Pandit
2023-09-12 10:17 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 10:25 ` [virtio-dev] " Parav Pandit
2023-09-12 10:32 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 10:40 ` [virtio-dev] " Parav Pandit
2023-09-12 13:04 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 13:36 ` [virtio-dev] " Parav Pandit
2023-09-12 4:10 ` [virtio-dev] " Jason Wang
2023-09-12 6:05 ` [virtio-dev] " Parav Pandit
2023-09-13 4:45 ` [virtio-dev] " Jason Wang
2023-09-13 6:39 ` [virtio-dev] " Parav Pandit
2023-09-14 3:08 ` [virtio-dev] " Jason Wang
2023-09-17 5:22 ` [virtio-dev] " Parav Pandit
2023-09-19 4:32 ` [virtio-dev] " Jason Wang
2023-09-19 7:32 ` [virtio-dev] " Parav Pandit
2023-09-13 8:27 ` [virtio-dev] " Michael S. Tsirkin
2023-09-14 3:11 ` Jason Wang
2023-09-12 4:18 ` Jason Wang
2023-09-12 6:11 ` [virtio-dev] " Parav Pandit
2023-09-12 6:43 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 6:52 ` [virtio-dev] " Parav Pandit
2023-09-12 7:36 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 7:43 ` [virtio-dev] " Parav Pandit
2023-09-12 10:27 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 10:33 ` [virtio-dev] " Parav Pandit
2023-09-12 10:35 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 10:41 ` [virtio-dev] " Parav Pandit
2023-09-12 13:09 ` [virtio-dev] " Zhu, Lingshan
2023-09-12 13:35 ` [virtio-dev] " Parav Pandit
2023-09-13 4:13 ` [virtio-dev] " Zhu, Lingshan
2023-09-13 4:19 ` [virtio-dev] " Parav Pandit
2023-09-13 4:22 ` [virtio-dev] " Zhu, Lingshan
2023-09-13 4:39 ` [virtio-dev] " Parav Pandit
2023-09-14 8:24 ` [virtio-dev] " Zhu, Lingshan
2023-09-13 4:56 ` Jason Wang
2023-09-13 4:43 ` Jason Wang
2023-09-13 4:46 ` [virtio-dev] " Parav Pandit
2023-09-14 3:12 ` [virtio-dev] " Jason Wang
2023-09-17 5:29 ` [virtio-dev] " Parav Pandit
2023-09-19 4:25 ` [virtio-dev] " Jason Wang
2023-09-19 7:32 ` [virtio-dev] " Parav Pandit
2023-09-11 6:59 ` Parav Pandit
2023-09-11 10:15 ` [virtio-dev] " Michael S. Tsirkin
2023-09-12 3:35 ` Jason Wang
2023-09-12 3:43 ` Zhu, Lingshan
2023-09-14 11:27 ` Michael S. Tsirkin
2023-09-15 4:13 ` Zhu, Lingshan
2023-09-06 8:29 ` [virtio-dev] Re: [virtio-comment] [PATCH 0/5] virtio: introduce SUSPEND bit and vq state Michael S. Tsirkin
2023-09-06 8:38 ` Zhu, Lingshan
2023-09-06 13:49 ` Michael S. Tsirkin
2023-09-07 1:51 ` Zhu, Lingshan
2023-09-07 10:57 ` Eugenio Perez Martin
2023-09-07 19:55 ` Michael S. Tsirkin
2023-09-14 11:14 ` [virtio-dev] " Michael S. Tsirkin
2023-09-15 4:28 ` Zhu, Lingshan
2023-09-17 5:32 ` Parav Pandit
2023-09-18 3:10 ` Zhu, Lingshan
2023-09-18 4:32 ` Parav Pandit
2023-09-18 5:21 ` Zhu, Lingshan
2023-09-18 5:25 ` Zhu, Lingshan
2023-09-18 6:37 ` Parav Pandit
2023-09-18 6:49 ` Zhu, Lingshan
2023-09-18 6:54 ` Parav Pandit
2023-09-18 9:34 ` Zhu, Lingshan
2023-09-18 18:41 ` Parav Pandit
2023-09-18 18:49 ` Michael S. Tsirkin
2023-09-20 6:06 ` Zhu, Lingshan
2023-09-20 6:08 ` Parav Pandit
2023-09-20 6:31 ` Zhu, Lingshan
2023-09-20 8:34 ` Parav Pandit
2023-09-20 9:44 ` Zhu, Lingshan
2023-09-20 9:52 ` Parav Pandit
2023-09-20 11:11 ` Zhu, Lingshan
2023-09-20 11:15 ` Parav Pandit
2023-09-20 11:27 ` Zhu, Lingshan
2023-09-21 5:13 ` Michael S. Tsirkin
2023-09-20 10:36 ` Michael S. Tsirkin
2023-09-20 10:55 ` Parav Pandit
2023-09-20 11:28 ` Zhu, Lingshan
2023-09-20 11:52 ` Michael S. Tsirkin
2023-09-20 12:05 ` Zhu, Lingshan
2023-09-20 12:08 ` Zhu, Lingshan
2023-09-20 12:22 ` Michael S. Tsirkin
2023-09-20 11:22 ` Zhu, Lingshan
2023-09-20 12:05 ` Michael S. Tsirkin
2023-09-20 12:13 ` Parav Pandit
2023-09-20 12:16 ` Zhu, Lingshan
2023-09-20 12:40 ` Michael S. Tsirkin
2023-09-21 3:14 ` Jason Wang
2023-09-21 3:51 ` Parav Pandit
2023-09-21 4:02 ` Jason Wang
2023-09-21 4:11 ` Parav Pandit
2023-09-21 4:19 ` Jason Wang
2023-09-21 4:29 ` Parav Pandit
2023-09-22 3:13 ` Jason Wang
2023-09-20 12:41 ` Michael S. Tsirkin
2023-09-20 13:41 ` Parav Pandit
2023-09-20 14:13 ` Michael S. Tsirkin
2023-09-20 14:16 ` Michael S. Tsirkin
2023-09-20 17:21 ` Parav Pandit
2023-09-20 20:03 ` Michael S. Tsirkin
2023-09-21 3:43 ` Parav Pandit
2023-09-21 5:41 ` Michael S. Tsirkin
2023-09-21 5:54 ` Parav Pandit
2023-09-21 6:06 ` Michael S. Tsirkin
2023-09-21 6:31 ` Parav Pandit
2023-09-21 7:20 ` Michael S. Tsirkin
2023-09-21 7:53 ` Parav Pandit
2023-09-21 8:11 ` Michael S. Tsirkin
2023-09-21 9:17 ` Parav Pandit
2023-09-21 10:01 ` Michael S. Tsirkin
2023-09-21 11:13 ` Parav Pandit
2023-09-21 10:09 ` Michael S. Tsirkin
2023-09-21 10:39 ` Parav Pandit
2023-09-21 12:22 ` Michael S. Tsirkin
2023-09-21 12:39 ` Parav Pandit
2023-09-21 13:04 ` Michael S. Tsirkin
2023-09-22 3:31 ` Jason Wang
2023-09-21 9:06 ` Zhu, Lingshan
2023-09-21 9:18 ` Zhu, Lingshan
2023-09-21 9:26 ` Parav Pandit
2023-09-21 9:55 ` Zhu, Lingshan [this message]
2023-09-21 11:28 ` Parav Pandit
2023-09-22 2:40 ` Zhu, Lingshan
2023-09-21 3:26 ` Jason Wang
2023-09-21 4:21 ` Parav Pandit
2023-09-21 3:18 ` Jason Wang
2023-09-21 4:03 ` Parav Pandit
2023-09-21 3:17 ` Jason Wang
2023-09-21 4:01 ` Parav Pandit
2023-09-21 4:09 ` Jason Wang
2023-09-21 4:19 ` Parav Pandit
2023-09-22 3:08 ` Jason Wang
2023-09-22 3:39 ` Zhu, Lingshan
2023-09-25 10:41 ` Parav Pandit
2023-09-26 2:45 ` Jason Wang
2023-09-26 3:40 ` Parav Pandit
2023-09-26 4:37 ` Jason Wang
2023-09-26 5:21 ` Parav Pandit
2023-10-09 8:49 ` Jason Wang
2023-10-12 10:03 ` Michael S. Tsirkin
2023-09-27 15:31 ` Michael S. Tsirkin
2023-09-26 5:36 ` Zhu, Lingshan
2023-09-26 6:03 ` Parav Pandit
2023-09-26 9:25 ` Zhu, Lingshan
2023-09-26 10:48 ` Michael S. Tsirkin
2023-09-27 8:20 ` Zhu, Lingshan
2023-09-27 10:39 ` Parav Pandit
2023-10-09 10:05 ` Zhu, Lingshan
2023-10-09 10:07 ` Parav Pandit
2023-09-27 15:40 ` Michael S. Tsirkin
2023-10-09 10:01 ` Zhu, Lingshan
2023-10-11 10:20 ` [virtio-dev] Re: [virtio-comment] " Michael S. Tsirkin
2023-10-11 10:38 ` Zhu, Lingshan
2023-10-11 11:52 ` [virtio-dev] " Parav Pandit
2023-10-12 10:57 ` [virtio-dev] " Zhu, Lingshan
2023-10-12 11:13 ` Michael S. Tsirkin
2023-10-12 9:59 ` Michael S. Tsirkin
2023-10-12 10:49 ` Zhu, Lingshan
2023-10-12 11:12 ` Michael S. Tsirkin
2023-10-13 10:18 ` Zhu, Lingshan
2023-10-12 14:38 ` Michael S. Tsirkin
2023-10-13 10:23 ` Zhu, Lingshan
2023-09-27 21:43 ` Michael S. Tsirkin
2023-09-19 8:01 ` Zhu, Lingshan
2023-09-19 9:06 ` Parav Pandit
2023-09-19 10:03 ` Zhu, Lingshan
2023-09-19 4:27 ` Jason Wang
2023-09-19 7:32 ` Parav Pandit
2023-09-19 7:46 ` Zhu, Lingshan
2023-09-19 7:53 ` Parav Pandit
2023-09-19 8:03 ` Zhu, Lingshan
2023-09-19 8:31 ` Parav Pandit
2023-09-19 8:39 ` Zhu, Lingshan
2023-09-19 9:09 ` Parav Pandit
2023-09-14 11:37 ` Michael S. Tsirkin
2023-09-15 4:41 ` Zhu, Lingshan
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