[libvirt PATCH 0/9] WIP/RFC: add QEMU "-display dbus" support

[Marc-André Lureau]

Hi

On Fri, Nov 5, 2021 at 2:51 PM <marcandre.lureau at redhat.com> wrote:
>
> From: Marc-André Lureau <marcandre.lureau at redhat.com>
>
> Hi,
>
> This series implements supports for the upcoming QEMU "-display dbus" support.
> Development is still in progress, but I hope to land the QEMU support early in
> 6.3 (last version posted:
> https://patchew.org/QEMU/20211009210838.2219430-1-marcandre.lureau@redhat.com/).
>
> By default, libvirt will start a private VM bus (sharing and reusing the
> existing "vmstate" code). A client will need the address of the bus and access
> to it. Since D-Bus addresses are not URIs unfortunately, I am not sure yet what
> should "virsh domdisplay" return.
>
> The feature set should cover the needs to replace Spice as local client of choice,
> including 3daccel/dmabuf, audio, clipboard sharing, usb redirection, and arbitrary
> chardev/channels (for serial etc).
>
> The test Gtk4 client is also in progress, currently in development at
> https://gitlab.com/marcandre.lureau/qemu-display/. A few dependencies, such as
> zbus, require an upcoming release. virt-viewer & boxes will need a port to Gtk4
> to make use of the shared widget.
>
> Comments welcome, as we can still adjust the QEMU side etc.

No comments?
thanks

>
> thanks
>
> Marc-André Lureau (9):
>   qemu: start the D-Bus daemon as needed
>   qemu: add chardev-vdagent capability check
>   qemu: add -display dbus capability check (to update to 6.3)
>   qemu: add -display dbus support
>   qemu: add audio type 'dbus'
>   qemu: add dbus clipboard sharing
>   qemu: add -chardev dbus
>   qemu: add usbredir type 'dbus'
>   docs: document <graphics> type dbus
>
>  docs/formatdomain.rst                         |  24 ++++
>  docs/schemas/basictypes.rng                   |   7 ++
>  docs/schemas/domaincommon.rng                 |  71 +++++++++++
>  src/bhyve/bhyve_command.c                     |   1 +
>  src/conf/domain_conf.c                        | 116 +++++++++++++++++-
>  src/conf/domain_conf.h                        |  14 +++
>  src/conf/domain_validate.c                    |  32 +++--
>  src/libxl/libxl_conf.c                        |   1 +
>  src/qemu/qemu_capabilities.c                  |   6 +
>  src/qemu/qemu_capabilities.h                  |   2 +
>  src/qemu/qemu_command.c                       |  94 +++++++++++++-
>  src/qemu/qemu_domain.c                        |   1 +
>  src/qemu/qemu_domain.h                        |   1 +
>  src/qemu/qemu_driver.c                        |  10 +-
>  src/qemu/qemu_hotplug.c                       |   1 +
>  src/qemu/qemu_monitor_json.c                  |   1 +
>  src/qemu/qemu_process.c                       |  15 ++-
>  src/qemu/qemu_validate.c                      |  33 +++++
>  src/security/security_dac.c                   |   2 +
>  src/vmx/vmx.c                                 |   1 +
>  .../domaincapsdata/qemu_6.2.0-q35.x86_64.xml  |   1 +
>  .../domaincapsdata/qemu_6.2.0-tcg.x86_64.xml  |   1 +
>  tests/domaincapsdata/qemu_6.2.0.x86_64.xml    |   1 +
>  .../caps_6.1.0.x86_64.xml                     |   1 +
>  .../caps_6.2.0.aarch64.xml                    |   1 +
>  .../caps_6.2.0.x86_64.replies                 |  10 +-
>  .../caps_6.2.0.x86_64.xml                     |   2 +
>  .../graphics-dbus-address.args                |  31 +++++
>  .../graphics-dbus-address.xml                 |  34 +++++
>  .../qemuxml2argvdata/graphics-dbus-audio.args |  32 +++++
>  .../qemuxml2argvdata/graphics-dbus-audio.xml  |  40 ++++++
>  .../graphics-dbus-chardev.args                |  33 +++++
>  .../graphics-dbus-chardev.xml                 |  38 ++++++
>  .../graphics-dbus-clipboard.args              |  32 +++++
>  .../graphics-dbus-clipboard.xml               |  36 ++++++
>  tests/qemuxml2argvdata/graphics-dbus-p2p.args |  31 +++++
>  tests/qemuxml2argvdata/graphics-dbus-p2p.xml  |  36 ++++++
>  .../graphics-dbus-usbredir.args               |  35 ++++++
>  .../graphics-dbus-usbredir.xml                |  36 ++++++
>  tests/qemuxml2argvdata/graphics-dbus.args     |  31 +++++
>  tests/qemuxml2argvdata/graphics-dbus.xml      |  34 +++++
>  tests/qemuxml2argvtest.c                      |  21 ++++
>  .../graphics-dbus-address.xml                 |  39 ++++++
>  .../graphics-dbus-audio.xml                   |  43 +++++++
>  .../qemuxml2xmloutdata/graphics-dbus-p2p.xml  |  39 ++++++
>  tests/qemuxml2xmloutdata/graphics-dbus.xml    |  39 ++++++
>  tests/qemuxml2xmltest.c                       |  14 +++
>  47 files changed, 1106 insertions(+), 18 deletions(-)
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-address.args
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-address.xml
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-audio.args
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-audio.xml
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-chardev.args
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-chardev.xml
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-clipboard.args
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-clipboard.xml
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-p2p.args
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-p2p.xml
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-usbredir.args
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus-usbredir.xml
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus.args
>  create mode 100644 tests/qemuxml2argvdata/graphics-dbus.xml
>  create mode 100644 tests/qemuxml2xmloutdata/graphics-dbus-address.xml
>  create mode 100644 tests/qemuxml2xmloutdata/graphics-dbus-audio.xml
>  create mode 100644 tests/qemuxml2xmloutdata/graphics-dbus-p2p.xml
>  create mode 100644 tests/qemuxml2xmloutdata/graphics-dbus.xml
>
> --
> 2.33.0.721.g106298f7f9
>
>