From: Markus Armbruster <armbru@redhat.com>
To: Filip Hejsek <filip.hejsek@gmail.com>
Cc: qemu-devel@nongnu.org,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Laurent Vivier" <lvivier@redhat.com>,
"Amit Shah" <amit@kernel.org>, "Eric Blake" <eblake@redhat.com>,
"Eduardo Habkost" <eduardo@habkost.net>,
"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Yanan Wang" <wangyanan55@huawei.com>,
"Zhao Liu" <zhao1.liu@intel.com>,
"Szymon Lukasz" <noh4hss@gmail.com>
Subject: Re: [PATCH v4 08/10] virtio-serial-bus: add terminal resize messages
Date: Fri, 12 Sep 2025 15:50:14 +0200 [thread overview]
Message-ID: <878qij7pbd.fsf@pond.sub.org> (raw)
In-Reply-To: <20250912-console-resize-v4-8-7925e444afc4@gmail.com> (Filip Hejsek's message of "Fri, 12 Sep 2025 05:39:53 +0200")
Filip Hejsek <filip.hejsek@gmail.com> writes:
> From: Szymon Lukasz <noh4hss@gmail.com>
>
> Implement the part of the virtio spec that allows to notify the virtio
> driver about terminal resizes. The virtio spec contains two methods to
> achieve that:
>
> For legacy drivers, we have only one port and we put the terminal size
> in the config space and inject the config changed interrupt.
>
> For multiport devices, we use the control virtqueue to send a packet
> containing the terminal size. Note that old versions of the Linux kernel
> used an incorrect order for the fields (rows then cols instead of cols
> then rows), until it was fixed by commit 5326ab737a47278dbd16ed3ee7380b26c7056ddd.
>
> As a result, when using a Linux kernel older than 6.15, the number of rows
> and columns will be swapped.
Should this note be added to user documentation?
> Signed-off-by: Szymon Lukasz <noh4hss@gmail.com>
> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
> Signed-off-by: Filip Hejsek <filip.hejsek@gmail.com>
next prev parent reply other threads:[~2025-09-12 13:51 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-12 3:39 [PATCH v4 00/10] virtio-console: notify about the terminal size Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 01/10] chardev: add cols, rows fields Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 02/10] chardev: add CHR_EVENT_RESIZE Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 03/10] chardev: add qemu_chr_resize() Filip Hejsek
2025-09-18 8:45 ` Maximilian Immanuel Brandtner
2025-09-18 9:31 ` Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 04/10] char-mux: add support for the terminal size Filip Hejsek
2025-09-18 8:32 ` Maximilian Immanuel Brandtner
2025-09-18 9:11 ` Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 05/10] main-loop: change the handling of SIGWINCH Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 06/10] char-stdio: add support for the terminal size Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 07/10] qmp: add chardev-resize command Filip Hejsek
2025-09-12 14:01 ` Markus Armbruster
2025-09-12 18:10 ` Filip Hejsek
2025-09-15 6:35 ` Markus Armbruster
2025-09-15 22:22 ` Filip Hejsek
2025-09-16 13:07 ` Markus Armbruster
2025-09-16 17:01 ` Filip Hejsek
2025-09-17 8:25 ` Markus Armbruster
2025-09-12 3:39 ` [PATCH v4 08/10] virtio-serial-bus: add terminal resize messages Filip Hejsek
2025-09-12 13:50 ` Markus Armbruster [this message]
2025-09-12 15:02 ` Filip Hejsek
2025-09-18 8:23 ` Daniel P. Berrangé
2025-09-18 8:51 ` Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 09/10] virtio-console: notify the guest about terminal resizes Filip Hejsek
2025-09-12 3:39 ` [PATCH v4 10/10] char-win-stdio: add support for terminal size Filip Hejsek
2025-09-12 8:41 ` [PATCH v4 00/10] virtio-console: notify about the " Michael S. Tsirkin
2025-09-12 8:44 ` Michael S. Tsirkin
2025-09-12 8:50 ` Daniel P. Berrangé
2025-09-12 8:54 ` Michael S. Tsirkin
2025-09-15 8:41 ` Maximilian Immanuel Brandtner
2025-09-15 8:44 ` Daniel P. Berrangé
2025-09-15 16:25 ` [PATCH] char-pty: add support for " Maximilian Immanuel Brandtner
2025-09-15 16:34 ` [PATCH v2] " Maximilian Immanuel Brandtner
2025-09-15 16:36 ` Michael S. Tsirkin
2025-09-15 22:02 ` Filip Hejsek
2025-09-17 9:39 ` Maximilian Immanuel Brandtner
2025-09-17 13:09 ` Filip Hejsek
2025-09-17 13:31 ` Daniel P. Berrangé
2025-09-17 14:08 ` Filip Hejsek
2025-09-17 16:17 ` Daniel P. Berrangé
2025-09-17 17:11 ` Filip Hejsek
2025-09-17 17:53 ` Daniel P. Berrangé
2025-09-17 18:29 ` Filip Hejsek
2025-09-18 8:35 ` Daniel P. Berrangé
2025-09-18 8:39 ` Maximilian Immanuel Brandtner
2025-09-18 8:48 ` Daniel P. Berrangé
2025-09-18 8:54 ` Maximilian Immanuel Brandtner
2025-09-18 8:59 ` Daniel P. Berrangé
2025-09-18 9:05 ` Maximilian Immanuel Brandtner
2025-09-18 19:21 ` Filip Hejsek
2025-09-18 7:53 ` Maximilian Immanuel Brandtner
2025-09-18 8:10 ` Filip Hejsek
2025-09-12 14:24 ` [PATCH v4 00/10] virtio-console: notify about " Filip Hejsek
2025-09-15 23:02 ` Filip Hejsek
2025-09-15 23:08 ` Michael S. Tsirkin
2025-09-17 18:32 ` Filip Hejsek
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