From: "Michael S. Tsirkin" <mst@redhat.com>
To: Parav Pandit <parav@nvidia.com>
Cc: Jason Wang <jasowang@redhat.com>,
"virtio-dev@lists.oasis-open.org"
<virtio-dev@lists.oasis-open.org>,
"cohuck@redhat.com" <cohuck@redhat.com>,
"david.edmondson@oracle.com" <david.edmondson@oracle.com>,
"sburla@marvell.com" <sburla@marvell.com>,
Yishai Hadas <yishaih@nvidia.com>,
Maor Gottlieb <maorg@nvidia.com>,
"virtio-comment@lists.oasis-open.org"
<virtio-comment@lists.oasis-open.org>,
Shahaf Shuler <shahafs@nvidia.com>
Subject: [virtio-comment] Re: [PATCH v2 0/2] transport-pci: Introduce legacy registers access using AQ
Date: Mon, 15 May 2023 13:44:48 -0400 [thread overview]
Message-ID: <20230515133719-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <PH0PR12MB5481CF52380D414AFFBA6A9FDC789@PH0PR12MB5481.namprd12.prod.outlook.com>
On Mon, May 15, 2023 at 03:49:44PM +0000, Parav Pandit wrote:
> All legacy interface via AQ.
> All modern interface access via PCI or its own transport between driver and device.
I am wondering however about the hypervisor notifications. Generally
these are the most problematic aspect here I feel. For example, how
does it interact with VIRTIO_F_NOTIF_CONFIG_DATA? And generally, having
both guest and host be allowed to access device's BAR seems problematic.
Can we reserve a PF BAR region for these things or is that too
expensive?
--
MST
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WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Parav Pandit <parav@nvidia.com>
Cc: Jason Wang <jasowang@redhat.com>,
"virtio-dev@lists.oasis-open.org"
<virtio-dev@lists.oasis-open.org>,
"cohuck@redhat.com" <cohuck@redhat.com>,
"david.edmondson@oracle.com" <david.edmondson@oracle.com>,
"sburla@marvell.com" <sburla@marvell.com>,
Yishai Hadas <yishaih@nvidia.com>,
Maor Gottlieb <maorg@nvidia.com>,
"virtio-comment@lists.oasis-open.org"
<virtio-comment@lists.oasis-open.org>,
Shahaf Shuler <shahafs@nvidia.com>
Subject: [virtio-dev] Re: [PATCH v2 0/2] transport-pci: Introduce legacy registers access using AQ
Date: Mon, 15 May 2023 13:44:48 -0400 [thread overview]
Message-ID: <20230515133719-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <PH0PR12MB5481CF52380D414AFFBA6A9FDC789@PH0PR12MB5481.namprd12.prod.outlook.com>
On Mon, May 15, 2023 at 03:49:44PM +0000, Parav Pandit wrote:
> All legacy interface via AQ.
> All modern interface access via PCI or its own transport between driver and device.
I am wondering however about the hypervisor notifications. Generally
these are the most problematic aspect here I feel. For example, how
does it interact with VIRTIO_F_NOTIF_CONFIG_DATA? And generally, having
both guest and host be allowed to access device's BAR seems problematic.
Can we reserve a PF BAR region for these things or is that too
expensive?
--
MST
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next prev parent reply other threads:[~2023-05-15 17:44 UTC|newest]
Thread overview: 252+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-06 0:01 [virtio-comment] [PATCH v2 0/2] transport-pci: Introduce legacy registers access using AQ Parav Pandit
2023-05-06 0:01 ` [virtio-dev] " Parav Pandit
2023-05-06 0:01 ` [virtio-comment] [PATCH v2 1/2] transport-pci: Introduce legacy registers access commands Parav Pandit
2023-05-06 0:01 ` [virtio-dev] " Parav Pandit
2023-05-17 5:44 ` [virtio-comment] " Michael S. Tsirkin
2023-05-17 5:44 ` [virtio-dev] " Michael S. Tsirkin
2023-05-17 19:32 ` [virtio-comment] " Parav Pandit
2023-05-17 19:32 ` [virtio-dev] " Parav Pandit
2023-05-18 19:42 ` [virtio-comment] " Michael S. Tsirkin
2023-05-18 19:42 ` [virtio-dev] " Michael S. Tsirkin
2023-05-18 20:51 ` Parav Pandit
2023-05-18 20:51 ` [virtio-dev] " Parav Pandit
2023-05-19 1:54 ` Jason Wang
2023-05-19 1:54 ` [virtio-dev] " Jason Wang
2023-05-19 2:04 ` Parav Pandit
2023-05-19 2:04 ` [virtio-dev] " Parav Pandit
2023-05-19 6:06 ` Michael S. Tsirkin
2023-05-19 6:06 ` [virtio-dev] " Michael S. Tsirkin
2023-05-19 16:37 ` Parav Pandit
2023-05-19 16:37 ` [virtio-dev] " Parav Pandit
2023-05-21 9:16 ` Michael S. Tsirkin
2023-05-21 9:16 ` [virtio-dev] " Michael S. Tsirkin
2023-05-21 13:21 ` Parav Pandit
2023-05-21 13:21 ` [virtio-dev] " Parav Pandit
2023-05-21 14:33 ` Michael S. Tsirkin
2023-05-21 14:33 ` [virtio-dev] " Michael S. Tsirkin
2023-05-21 14:44 ` Parav Pandit
2023-05-21 14:44 ` [virtio-dev] " Parav Pandit
2023-05-22 20:07 ` Michael S. Tsirkin
2023-05-22 20:07 ` [virtio-dev] " Michael S. Tsirkin
2023-05-22 21:05 ` Parav Pandit
2023-05-22 21:05 ` [virtio-dev] " Parav Pandit
2023-05-22 21:34 ` Michael S. Tsirkin
2023-05-22 21:34 ` [virtio-dev] " Michael S. Tsirkin
2023-05-23 17:13 ` Parav Pandit
2023-05-23 17:13 ` [virtio-dev] " Parav Pandit
2023-05-23 18:48 ` Michael S. Tsirkin
2023-05-23 18:48 ` [virtio-dev] " Michael S. Tsirkin
2023-05-23 22:22 ` Parav Pandit
2023-05-23 22:22 ` [virtio-dev] " Parav Pandit
2023-05-24 1:17 ` Jason Wang
2023-05-24 1:17 ` [virtio-dev] " Jason Wang
2023-05-24 10:07 ` Michael S. Tsirkin
2023-05-24 10:07 ` [virtio-dev] " Michael S. Tsirkin
2023-05-24 19:18 ` Parav Pandit
2023-05-24 19:18 ` [virtio-dev] " Parav Pandit
2023-05-24 20:12 ` Michael S. Tsirkin
2023-05-24 20:12 ` [virtio-dev] " Michael S. Tsirkin
2023-05-24 21:02 ` Parav Pandit
2023-05-24 21:02 ` [virtio-dev] " Parav Pandit
2023-05-22 21:42 ` Michael S. Tsirkin
2023-05-22 21:42 ` [virtio-dev] " Michael S. Tsirkin
2023-05-22 0:54 ` Jason Wang
2023-05-22 0:54 ` [virtio-dev] " Jason Wang
2023-05-22 2:46 ` Parav Pandit
2023-05-22 2:46 ` [virtio-dev] " Parav Pandit
2023-05-22 19:35 ` Michael S. Tsirkin
2023-05-22 19:35 ` [virtio-dev] " Michael S. Tsirkin
2023-05-06 0:01 ` [virtio-comment] [PATCH v2 2/2] transport-pci: Add legacy register access conformance section Parav Pandit
2023-05-06 0:01 ` [virtio-dev] " Parav Pandit
2023-05-06 2:31 ` [virtio-comment] Re: [PATCH v2 0/2] transport-pci: Introduce legacy registers access using AQ Jason Wang
2023-05-06 2:31 ` [virtio-dev] " Jason Wang
2023-05-07 13:44 ` [virtio-comment] " Michael S. Tsirkin
2023-05-07 13:44 ` [virtio-dev] " Michael S. Tsirkin
2023-05-08 2:23 ` [virtio-comment] " Jason Wang
2023-05-08 2:23 ` [virtio-dev] " Jason Wang
2023-05-08 17:07 ` [virtio-comment] " Parav Pandit
2023-05-08 17:07 ` [virtio-dev] " Parav Pandit
2023-05-09 3:44 ` [virtio-comment] " Jason Wang
2023-05-09 3:44 ` [virtio-dev] " Jason Wang
2023-05-09 3:56 ` [virtio-comment] " Parav Pandit
2023-05-09 3:56 ` [virtio-dev] " Parav Pandit
2023-05-10 3:51 ` [virtio-comment] " Jason Wang
2023-05-10 3:51 ` [virtio-dev] " Jason Wang
2023-05-10 4:22 ` [virtio-comment] " Jason Wang
2023-05-10 4:22 ` [virtio-dev] " Jason Wang
2023-05-10 16:07 ` [virtio-comment] " Parav Pandit
2023-05-10 16:07 ` [virtio-dev] " Parav Pandit
2023-05-11 7:20 ` [virtio-comment] " Jason Wang
2023-05-11 7:20 ` [virtio-dev] " Jason Wang
2023-05-11 11:35 ` Michael S. Tsirkin
2023-05-11 11:35 ` [virtio-dev] " Michael S. Tsirkin
2023-05-15 5:08 ` Jason Wang
2023-05-15 5:08 ` [virtio-dev] " Jason Wang
2023-05-15 15:25 ` Parav Pandit
2023-05-15 15:25 ` [virtio-dev] " Parav Pandit
2023-05-10 16:04 ` Parav Pandit
2023-05-10 16:04 ` [virtio-dev] " Parav Pandit
2023-05-11 7:17 ` [virtio-comment] " Jason Wang
2023-05-11 7:17 ` [virtio-dev] " Jason Wang
2023-05-11 14:31 ` [virtio-comment] " Parav Pandit
2023-05-11 14:31 ` [virtio-dev] " Parav Pandit
2023-05-15 5:12 ` [virtio-comment] " Jason Wang
2023-05-15 5:12 ` [virtio-dev] " Jason Wang
2023-05-15 15:26 ` Parav Pandit
2023-05-15 15:26 ` [virtio-dev] " Parav Pandit
2023-05-10 6:04 ` [virtio-comment] " Michael S. Tsirkin
2023-05-10 6:04 ` [virtio-dev] " Michael S. Tsirkin
2023-05-10 7:01 ` [virtio-comment] " Jason Wang
2023-05-10 7:01 ` [virtio-dev] " Jason Wang
2023-05-10 7:43 ` [virtio-comment] " Michael S. Tsirkin
2023-05-10 7:43 ` [virtio-dev] " Michael S. Tsirkin
2023-05-10 16:13 ` [virtio-comment] " Parav Pandit
2023-05-10 16:13 ` [virtio-dev] " Parav Pandit
2023-05-11 7:04 ` [virtio-comment] " Jason Wang
2023-05-11 7:04 ` [virtio-dev] " Jason Wang
2023-05-11 12:54 ` [virtio-comment] " Michael S. Tsirkin
2023-05-11 12:54 ` [virtio-dev] " Michael S. Tsirkin
2023-05-11 13:02 ` [virtio-comment] " Parav Pandit
2023-05-11 13:02 ` [virtio-dev] " Parav Pandit
2023-05-15 7:30 ` [virtio-comment] " Jason Wang
2023-05-15 7:30 ` [virtio-dev] " Jason Wang
2023-05-15 10:08 ` [virtio-comment] " Michael S. Tsirkin
2023-05-15 10:08 ` [virtio-dev] " Michael S. Tsirkin
2023-05-15 14:30 ` [virtio-comment] " Parav Pandit
2023-05-15 14:30 ` [virtio-dev] " Parav Pandit
2023-05-23 18:16 ` [virtio-comment] " Michael S. Tsirkin
2023-05-23 18:16 ` [virtio-dev] " Michael S. Tsirkin
2023-05-23 21:32 ` [virtio-comment] " Parav Pandit
2023-05-23 21:32 ` [virtio-dev] " Parav Pandit
2023-05-24 5:56 ` [virtio-comment] " Michael S. Tsirkin
2023-05-24 5:56 ` [virtio-dev] " Michael S. Tsirkin
2023-05-24 18:57 ` [virtio-comment] " Parav Pandit
2023-05-24 18:57 ` [virtio-dev] " Parav Pandit
2023-05-24 19:58 ` [virtio-comment] " Michael S. Tsirkin
2023-05-24 19:58 ` [virtio-dev] " Michael S. Tsirkin
2023-05-24 20:01 ` [virtio-comment] " Parav Pandit
2023-05-24 20:01 ` [virtio-dev] " Parav Pandit
2023-05-24 20:15 ` [virtio-comment] " Michael S. Tsirkin
2023-05-24 20:15 ` [virtio-dev] " Michael S. Tsirkin
2023-05-15 15:59 ` [virtio-comment] " Parav Pandit
2023-05-15 15:59 ` [virtio-dev] " Parav Pandit
2023-05-16 6:21 ` [virtio-comment] " Michael S. Tsirkin
2023-05-16 6:21 ` [virtio-dev] " Michael S. Tsirkin
2023-05-16 19:11 ` [virtio-comment] " Parav Pandit
2023-05-16 19:11 ` [virtio-dev] " Parav Pandit
2023-05-16 20:58 ` [virtio-comment] " Michael S. Tsirkin
2023-05-16 20:58 ` [virtio-dev] " Michael S. Tsirkin
2023-05-16 21:19 ` [virtio-comment] " Parav Pandit
2023-05-16 21:19 ` [virtio-dev] " Parav Pandit
2023-05-16 21:23 ` [virtio-comment] " Michael S. Tsirkin
2023-05-16 21:23 ` [virtio-dev] " Michael S. Tsirkin
2023-05-16 21:30 ` [virtio-comment] " Parav Pandit
2023-05-16 21:30 ` [virtio-dev] " Parav Pandit
2023-05-15 7:13 ` [virtio-comment] " Jason Wang
2023-05-15 7:13 ` [virtio-dev] " Jason Wang
2023-05-11 13:15 ` [virtio-comment] " Parav Pandit
2023-05-11 13:15 ` [virtio-dev] " Parav Pandit
2023-05-11 13:45 ` [virtio-comment] " Michael S. Tsirkin
2023-05-11 13:45 ` [virtio-dev] " Michael S. Tsirkin
2023-05-12 14:03 ` [virtio-comment] " Parav Pandit
2023-05-12 14:03 ` Parav Pandit
2023-05-16 3:54 ` [virtio-comment] " Jason Wang
2023-05-16 3:54 ` [virtio-dev] " Jason Wang
2023-05-16 19:35 ` [virtio-comment] " Parav Pandit
2023-05-16 19:35 ` [virtio-dev] " Parav Pandit
2023-05-16 21:11 ` Michael S. Tsirkin
2023-05-16 21:11 ` [virtio-dev] " Michael S. Tsirkin
2023-05-16 21:49 ` Parav Pandit
2023-05-16 21:49 ` [virtio-dev] " Parav Pandit
2023-05-16 21:56 ` Michael S. Tsirkin
2023-05-16 21:56 ` [virtio-dev] " Michael S. Tsirkin
2023-05-10 16:11 ` Parav Pandit
2023-05-10 16:11 ` [virtio-dev] " Parav Pandit
2023-05-10 16:16 ` [virtio-comment] " Michael S. Tsirkin
2023-05-10 16:16 ` [virtio-dev] " Michael S. Tsirkin
2023-05-10 17:33 ` [virtio-comment] " Parav Pandit
2023-05-10 17:33 ` [virtio-dev] " Parav Pandit
2023-05-10 21:08 ` [virtio-comment] " Parav Pandit
2023-05-10 21:08 ` [virtio-dev] " Parav Pandit
2023-05-10 21:33 ` [virtio-comment] " Michael S. Tsirkin
2023-05-10 21:33 ` [virtio-dev] " Michael S. Tsirkin
2023-05-10 21:48 ` [virtio-comment] " Parav Pandit
2023-05-10 21:48 ` [virtio-dev] " Parav Pandit
2023-05-11 7:06 ` [virtio-comment] " Jason Wang
2023-05-11 7:06 ` [virtio-dev] " Jason Wang
2023-05-11 13:04 ` [virtio-comment] " Michael S. Tsirkin
2023-05-11 13:04 ` [virtio-dev] " Michael S. Tsirkin
2023-05-15 5:19 ` [virtio-comment] " Jason Wang
2023-05-15 5:19 ` [virtio-dev] " Jason Wang
2023-05-15 15:31 ` [virtio-comment] " Parav Pandit
2023-05-15 15:31 ` [virtio-dev] " Parav Pandit
2023-05-11 13:28 ` [virtio-comment] " Parav Pandit
2023-05-11 13:28 ` [virtio-dev] " Parav Pandit
2023-05-11 13:38 ` [virtio-comment] " Michael S. Tsirkin
2023-05-11 13:38 ` [virtio-dev] " Michael S. Tsirkin
2023-05-11 16:00 ` [virtio-comment] " Parav Pandit
2023-05-11 16:00 ` [virtio-dev] " Parav Pandit
2023-05-11 20:47 ` [virtio-comment] " Parav Pandit
2023-05-11 20:47 ` [virtio-dev] " Parav Pandit
2023-05-11 20:58 ` [virtio-comment] " Michael S. Tsirkin
2023-05-11 20:58 ` [virtio-dev] " Michael S. Tsirkin
2023-05-11 21:03 ` [virtio-comment] " Parav Pandit
2023-05-11 21:03 ` [virtio-dev] " Parav Pandit
2023-05-15 16:55 ` [virtio-comment] " Parav Pandit
2023-05-15 16:55 ` [virtio-dev] " Parav Pandit
2023-05-15 7:10 ` [virtio-comment] " Jason Wang
2023-05-15 7:10 ` [virtio-dev] " Jason Wang
2023-05-15 15:49 ` [virtio-comment] " Parav Pandit
2023-05-15 15:49 ` [virtio-dev] " Parav Pandit
2023-05-15 17:44 ` Michael S. Tsirkin [this message]
2023-05-15 17:44 ` [virtio-dev] " Michael S. Tsirkin
2023-05-15 17:51 ` [virtio-comment] " Parav Pandit
2023-05-15 17:51 ` [virtio-dev] " Parav Pandit
2023-05-15 17:56 ` [virtio-comment] " Michael S. Tsirkin
2023-05-15 17:56 ` [virtio-dev] " Michael S. Tsirkin
2023-05-15 18:00 ` [virtio-comment] " Parav Pandit
2023-05-15 18:00 ` [virtio-dev] " Parav Pandit
2023-05-15 18:01 ` [virtio-comment] " Michael S. Tsirkin
2023-05-15 18:01 ` [virtio-dev] " Michael S. Tsirkin
2023-05-15 18:05 ` [virtio-comment] " Parav Pandit
2023-05-15 18:05 ` [virtio-dev] " Parav Pandit
2023-05-16 3:37 ` [virtio-comment] " Jason Wang
2023-05-16 3:37 ` [virtio-dev] " Jason Wang
2023-05-16 3:43 ` [virtio-comment] " Jason Wang
2023-05-16 3:43 ` [virtio-dev] " Jason Wang
2023-05-16 5:38 ` [virtio-comment] " Michael S. Tsirkin
2023-05-16 5:38 ` [virtio-dev] " Michael S. Tsirkin
2023-05-16 3:28 ` [virtio-comment] " Jason Wang
2023-05-16 3:28 ` [virtio-dev] " Jason Wang
2023-05-16 3:45 ` [virtio-comment] " Parav Pandit
2023-05-16 3:45 ` [virtio-dev] " Parav Pandit
2023-05-16 4:08 ` [virtio-comment] " Jason Wang
2023-05-16 4:08 ` [virtio-dev] " Jason Wang
2023-05-16 19:29 ` [virtio-comment] " Parav Pandit
2023-05-16 19:29 ` [virtio-dev] " Parav Pandit
2023-05-16 21:09 ` [virtio-comment] " Michael S. Tsirkin
2023-05-16 21:09 ` [virtio-dev] " Michael S. Tsirkin
2023-05-16 21:41 ` [virtio-comment] " Parav Pandit
2023-05-16 21:41 ` [virtio-dev] " Parav Pandit
2023-05-16 21:54 ` [virtio-comment] " Michael S. Tsirkin
2023-05-16 21:54 ` [virtio-dev] " Michael S. Tsirkin
2023-05-16 4:18 ` [virtio-comment] " Michael S. Tsirkin
2023-05-16 4:18 ` [virtio-dev] " Michael S. Tsirkin
2023-05-07 9:04 ` [virtio-comment] " Michael S. Tsirkin
2023-05-07 9:04 ` [virtio-dev] " Michael S. Tsirkin
2023-05-08 16:54 ` [virtio-comment] " Parav Pandit
2023-05-08 16:54 ` [virtio-dev] " Parav Pandit
2023-05-15 20:29 ` [virtio-comment] " Michael S. Tsirkin
2023-05-15 20:29 ` [virtio-dev] " Michael S. Tsirkin
2023-05-15 20:56 ` Parav Pandit
2023-05-15 20:56 ` [virtio-dev] " Parav Pandit
2023-05-16 4:32 ` Michael S. Tsirkin
2023-05-16 4:32 ` [virtio-dev] " Michael S. Tsirkin
2023-05-16 18:45 ` Parav Pandit
2023-05-16 18:45 ` [virtio-dev] " Parav Pandit
2023-05-16 20:42 ` Michael S. Tsirkin
2023-05-16 20:42 ` [virtio-dev] " Michael S. Tsirkin
2023-05-23 6:38 ` Michael S. Tsirkin
2023-05-23 6:38 ` [virtio-dev] " Michael S. Tsirkin
2023-05-23 17:28 ` [virtio-comment] " Parav Pandit
2023-05-23 17:28 ` [virtio-dev] " Parav Pandit
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