Merge tag 'dbus-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

Add D-Bus display backend

# gpg: Signature made Mon 20 Dec 2021 10:57:18 PM PST
# gpg: using RS

Merge tag 'dbus-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

Add D-Bus display backend

# gpg: Signature made Mon 20 Dec 2021 10:57:18 PM PST
# gpg: using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [unknown]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5

* tag 'dbus-pull-request' of https://gitlab.com/marcandre.lureau/qemu: (36 commits)
MAINTAINERS: update D-Bus section
ui/dbus: register D-Bus VC handler
ui/dbus: add chardev backend & interface
option: add g_auto for QemuOpts
chardev: make socket derivable
chardev: teach socket to accept no addresses
ui/dbus: add clipboard interface
audio: add "dbus" audio backend
tests: start dbus-display-test
tests/qtests: add qtest_qmp_add_client()
ui/dbus: add p2p=on/off option
ui: add a D-Bus display backend
build-sys: set glib dependency version
docs: add dbus-display documentation
docs: move D-Bus VMState documentation to source XML
backends: move dbus-vmstate1.xml to backends/
docs/sphinx: add sphinx modules to include D-Bus documentation
scripts: teach modinfo to skip non-C sources
console: save current scanout details
ui: move qemu_spice_fill_device_address to ui/util.c
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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docs: add dbus-display documentation

Wire up the dbus-display documentation. The interface and feature is
implemented next.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by:

docs: add dbus-display documentation

Wire up the dbus-display documentation. The interface and feature is
implemented next.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>

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Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-5.2-pull-request' into staging

Pull request trivial patches 20200919

# gpg: Signature made Sat 19 Sep 2020 19:43:35 BST
# gpg:

Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-5.2-pull-request' into staging

Pull request trivial patches 20200919

# gpg: Signature made Sat 19 Sep 2020 19:43:35 BST
# gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg: issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-5.2-pull-request:
contrib/: fix some comment spelling errors
qapi/: fix some comment spelling errors
disas/: fix some comment spelling errors
linux-user/: fix some comment spelling errors
util/: fix some comment spelling errors
scripts/: fix some comment spelling errors
docs/: fix some comment spelling errors
migration/: fix some comment spelling errors
qemu/: fix some comment spelling errors
scripts/git.orderfile: Display meson files along with buildsys ones
hw/timer/hpet: Fix debug format strings
hw/timer/hpet: Remove unused functions hpet_ram_readb, hpet_ram_readw
meson: remove empty else and duplicated gio deps
manual: escape backslashes in "parsed-literal" blocks
ui/spice-input: Remove superfluous forward declaration
hw/ppc/ppc4xx_pci: Replace magic value by the PCI_NUM_PINS definition
hw/gpio/max7310: Remove impossible check

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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docs/: fix some comment spelling errors

I found that there are many spelling errors in the comments of qemu,
so I used the spellcheck tool to check the spelling errors
and finally found some spellin

docs/: fix some comment spelling errors

I found that there are many spelling errors in the comments of qemu,
so I used the spellcheck tool to check the spelling errors
and finally found some spelling errors in the docs folder.

Signed-off-by: zhaolichang <zhaolichang@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200917075029.313-4-zhaolichang@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

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Merge remote-tracking branch 'remotes/elmarco/tags/dbus-vmstate7-pull-request' into staging

Add dbus-vmstate

Hi,

With external processes or helpers participating to the VM support, it
becomes nece

Merge remote-tracking branch 'remotes/elmarco/tags/dbus-vmstate7-pull-request' into staging

Add dbus-vmstate

Hi,

With external processes or helpers participating to the VM support, it
becomes necessary to handle their migration. Various options exist to
transfer their state:
1) as the VM memory, RAM or devices (we could say that's how
vhost-user devices can be handled today, they are expected to
restore from ring state)
2) other "vmstate" (as with TPM emulator state blobs)
3) left to be handled by management layer

1) is not practical, since an external processes may legitimatelly
need arbitrary state date to back a device or a service, or may not
even have an associated device.

2) needs ad-hoc code for each helper, but is simple and working

3) is complicated for management layer, QEMU has the migration timing

The proposed "dbus-vmstate" object will connect to a given D-Bus
address, and save/load from org.qemu.VMState1 owners on migration.

Thus helpers can easily have their state migrated with QEMU, without
implementing ad-hoc support (such as done for TPM emulation)

D-Bus is ubiquitous on Linux (it is systemd IPC), and can be made to
work on various other OSes. There are several implementations and good
bindings for various languages. (the tests/dbus-vmstate-test.c is a
good example of how simple the implementation of services can be, even
in C)

dbus-vmstate is put into use by the libvirt series "[PATCH 00/23] Use
a slirp helper process".

v2:
- fix build with broken mingw-glib

# gpg: Signature made Mon 06 Jan 2020 14:43:35 GMT
# gpg: using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/dbus-vmstate7-pull-request:
tests: add dbus-vmstate-test
tests: add migration-helpers unit
dockerfiles: add dbus-daemon to some of latest distributions
configure: add GDBUS_CODEGEN
Add dbus-vmstate object
util: add dbus helper unit
docs: start a document to describe D-Bus usage
vmstate: replace DeviceState with VMStateIf
vmstate: add qom interface to get id

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Add dbus-vmstate object

When instantiated, this object will connect to the given D-Bus bus
"addr". During migration, it will take/restore the data from
org.qemu.VMState1 instances. See documentation

Add dbus-vmstate object

When instantiated, this object will connect to the given D-Bus bus
"addr". During migration, it will take/restore the data from
org.qemu.VMState1 instances. See documentation for details.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

show more ...

docs: start a document to describe D-Bus usage

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>