Live migration with spice works like this today:
(1) client_migrate_info monitor cmd
(2) spice server notifies client, client connects to target host.
(3) qemu waits until spice client connect is finished.
(4) send over vmstate (i.e. main part of live migration).
(5) spice handover to target host.
(3) is implemented by making client_migrate_info a async monitor
command. This is the only async monitor command we have.
The original reason to implement this dance was that qemu did not accept
new tcp connections while the incoming migration was running, so (2) and
(4) could not be done in parallel. That issue was fixed long ago though.
Qemu version 1.3.0 (released Dec 2012) and newer happily accept tcp
connects while the incoming migration runs.
Time to drop step (3). This patch does exactly that, by making the
monitor command synchronous and removing the code needed to handle the
async monitor command in ui/spice-core.c
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Teach qemu to set up a Spice server with a UNIX socket using the
following arguments -spice unix,addr=path.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
If errors happen for middle items of channel_list,
qmp_query_spice_channels() returns NULL, and the variable
cur_item going out of scope leaks the storage it points to.
The flag is a compatibility thing for older spice-server
versions. Meanwhile our minimum spice version requirement is
new enough that we should never ever see this error, and if we
do something went very seriously wrong. Let's using assert()
instead of returning NULL to avoid a memory leak.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Nothing seems to be using functions from spice-experimental.h (better
that way). Let's remove its inclusion.
Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
It is possible to use Spice server without TCP port. On local VM,
qemu (and libvirt) can add new clients thanks to QMP add_client command.
Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Don't call SPICE API directly to set password given in command line, but
use the internal API, saving password for later calls.
This solves losing password when changing expiration in qemu monitor.
https://bugzilla.redhat.com/show_bug.cgi?id=1138639
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
imitate nearby code about using '!value' or 'value == NULL'
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Set auth to sasl when sasl is enabled, this makes "info spice" correctly
display sasl auth. Also throw an error in case someone tries to set
a spice password via monitor without auth mode being "spice".
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
SPICE_INITIALIZED, SPICE_CONNECTED, SPICE_DISCONNECTED and
SPICE_MIGRATE_COMPLETED are converted in one patch, since they
use some common functions. inet_strfamily() is removed since no
callers exist anymore.
Note that there is no existing doc for SPICE_MIGRATE_COMPLETED
in docs/qmp/qmp-events.txt before this patch.
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
In order to let event defines use existing types later, instead of
redefine new ones, some old type defines for spice and vnc are changed,
and BlockErrorAction is moved from block.h to qapi schema. Note that
BlockErrorAction is not merged with BlockdevOnError.
At this point, VncInfo is not made a child of VncBasicInfo, because
VncBasicInfo has mandatory fields where VncInfo makes them optional.
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Only notify spice-server about migration events in case we got
target host information beforehand. So we kick the seamless spice
client migration only in case a actual live migration happens, not
when libvirt uses live-migration-to-file for snapshotting.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In case no listening address was specified, "info spice" reports
"0.0.0.0" as address. Which is incorrect in case spice is listening
on ipv6. Replace it by a wildcard "*" to indicate it is not limited
to a specific address.
Note: Being more specific is not possible without extending the
spice-server api. The socket is handled by spice-server not
qemu, so qemu can't easily figure the actual socket address.
Reported-by: David Jaša <djasa@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Video streaming detection heuristics in spice-server have problems
keeping modern desktop animations (as done by gnome shell) and real
video playback apart. This leads to jpeg compression artefacts on
your desktop, due to spice using mjpeg to send what it thinks is
a video stream.
Turn off video detection by default to avoid these artifacts.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Alon Levy <alevy@redhat.com>
This patch fixes spice display initialization to handle
multihead properly.
spice-core now keeps track of which QemuConsole has a spice
display channel attached to it and which has not. It also
manages display channel ids.
spice-display looks at all QemuConsoles and will pick up any
graphic console not yet bound to a spice channel (which in practice
are all non-qxl graphic devices).
Result is that
(a) you'll get a spice client window for each graphical device
now (first only without this patch), and
(b) mixing qxl and non-qxl vga cards works properly.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
ui/vnc.c:vnc_display_open() and spice-server/server/reds.c:do_spice_init()
are both calling sasl_server_init(). If spice_server_set_sasl_appname()
hasn't been called, spice-server will call it with "spice" as an appname,
causing cyrus-sasl to try to use a /etc/sasl2/spice.conf config file rather
than the /etc/sasl2/qemu.conf file that QEMU uses.
When using -spice sasl on the command line, QEMU properly calls
spice_server_set_sasl_appname() to set the SASL appname as "qemu",
but when using a QXL device without using SPICE, spice_server_init()
is called from qemu_spice_add_interface() without setting the appname
to "qemu", which then causes the VNC code to try to use spice.conf
instead of qemu.conf.
Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Several places in spice-core.c were using either g_malloc+snprintf
or snprintf+g_strdup to achieve the same result as g_strdup_printf.
Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This is an autogenerated patch using scripts/switch-timer-api.
Switch the entire code base to using the new timer API.
Note this patch may introduce some line length issues.
Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Spice has two display interface implementations: One integrated into
the qxl graphics card, and one generic which can operate with every
qemu-emulated graphics card.
The generic one is activated in case spice is used without qxl. The
logic for that only caught the "-vga qxl" case, "-device qxl-vga" goes
unnoticed. Fix that by adding a check in the spice interface
registration so we'll notice the qxl card no matter how it is created.
https://bugzilla.redhat.com/show_bug.cgi?id=981094
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Commit 29ae8a4133 ("rdma: introduce
MIG_STATE_NONE and change MIG_STATE_SETUP state transition") changed the
state transitions during migration setup.
Spice used to be notified with MIG_STATE_ACTIVE and it detected this
using migration_is_active(). Spice is now notified with
MIG_STATE_SETUP and migration_is_active() no longer works.
Replace migration_is_active() with migration_in_setup() to fix spice
migration.
Cc: Michael R. Hines <mrhines@us.ibm.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The spice_server pointer is a global variable and
vm_change_state_handler() therefore does not use its opaque parameter.
The vm change state handler is added with a pointer to the spice_server
pointer. This is useless and we probably would not want 2 levels of
pointers.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Uri Lublin <uril@redhat.com>
* bonzini/header-dirs: (45 commits)
janitor: move remaining public headers to include/
hw: move executable format header files to hw/
fpu: move public header file to include/fpu
softmmu: move remaining include files to include/ subdirectories
softmmu: move include files to include/sysemu/
misc: move include files to include/qemu/
qom: move include files to include/qom/
migration: move include files to include/migration/
monitor: move include files to include/monitor/
exec: move include files to include/exec/
block: move include files to include/block/
qapi: move include files to include/qobject/
janitor: add guards to headers
qapi: make struct Visitor opaque
qapi: remove qapi/qapi-types-core.h
qapi: move inclusions of qemu-common.h from headers to .c files
ui: move files to ui/ and include/ui/
qemu-ga: move qemu-ga files to qga/
net: reorganize headers
net: move net.c to net/
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
When qxl + vnc are used, a dummy spice_server is initialized.
The spice_server has to be told when the VM runstate changes,
which is what this patch does.
Without it, from qxl_send_events(), the following error message is shown:
qxl_send_events: spice-server bug: guest stopped, ignoring
Cc: qemu-stable@nongnu.org
Signed-off-by: Uri Lublin <uril@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Commit c448e8552b (spice: tls
support) added options to the -spice command line. But there
is an inconsistency between the declaration of the option
'x509-dh-key-file' to -spice command line and its parameter
parsing 'x509-dh-file' in function qemu_spice_init.
https://bugs.launchpad.net/qemu/+bug/1035042
Reported-by: Alon Bar-Lev <alon.barlev@gmail.com>
Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
With the next qemu version (1.3) we are going to bump the qxl device
revision to 4. The new features available require a recent spice-server
version, so raise up the bar. Otherwise we would end up with different
qxl revisions depending on the spice-server version installed, which
would be a major PITA when it comes to compat properties.
Clear out a big bunch of #ifdefs which are not needed any more.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The seamless-migration flag is required in order to identify
whether libvirt supports the new QEVENT_SPICE_MIGRATE_COMPLETED or not
(by default the flag is off).
New libvirt versions that wait for QEVENT_SPICE_MIGRATE_COMPLETED should turn on this flag.
When this flag is off, spice fallbacks to its old migration method, which
can result in data loss.
Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The flag is 'true' when spice migration has completed on the src side.
It is needed for a case where libvirt dies before migration completes
and it misses the event QEVENT_SPICE_MIGRATE_COMPLETED.
When libvirt is restored and queries the migration status, it also needs
to query spice and check if its migration has completed.
Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When migrating, libvirt queries the migration status, and upon migration
completions, it closes the migration src. On the other hand, when
migration is completed, spice transfers data from the src to destination
via the client. This data is required for keeping the spice session
after migration, without suffering from data loss and inconsistencies.
In order to allow this data transfer, we add QEVENT for signaling
libvirt that spice migration has completed, and libvirt needs to wait
for this event before quitting the src process.
Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Spice server needs to know about the vm state in order to prevent
attempts to write to devices when they are stopped, mainly during
the non-live stage of migration.
Instead, spice will take care of restoring this writes, on the migration
target side, after migration completes.
Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When parsing its command line parameters, spice aborts when it
finds unexpected values, except for the 'streaming-video' option.
This happens because the parsing of the parameters for this option
is done using the 'name2enum' helper, which does not error out
on unknown values. Using the 'parse_name' helper makes sure we
error out in this case. Looking at git history, the use of
'name2enum' instead of 'parse_name' seems to have been an oversight,
so let's change to that now.
Fixes rhbz#831708
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add mouse_mode, either server or mouse, to qmp and hmp commands, based
on spice_server_is_server_mouse added in spice-server 0.10.3.
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Commit 1b71f7c14f moved MODULE_INIT_QOM to
way before MODULE_INIT_MACHINE, thereby breaking assumptions made in
spice-core.c which registered both a type initializer and a machine
intializer.
This fix removes the type registration, and replaces it with calling
qemu_spice_init in vl.c after command line parsing (second pass) is
done, and after timers are armed, required by spice server.
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
It's currently possible to setup spice channels using TLS when
no TLS port has been specified (ie TLS is disabled). This cannot
work, so better to error out in such a situation.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Error message reporting during spice startup wasn't consistent, it was done
with fprintf(stderr, "") but sometimes the message didn't have a trailing
\n. Using error_report make the intent of the message clearer and deal
with the final \n for us.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
drop all ifdefs on SPICE_INTERFACE_QXL_MINOR >= 1 as a result,
any check for SPICE_SERVER_VERSION that is now always satisfied,
and SPICE_INTERFACE_CORE_MINOR >= 3 tests, because
0.8.2 has SPICE_INTERFACE_QXL_MINOR == 1 and
SPICE_INTERFACE_CORE_MINOR == 3.
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
