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spice: adding seamless-migration option to the command line

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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>
This commit is contained in:
Yonit Halperin 2012-08-21 11:51:59 +03:00 committed by Gerd Hoffmann
parent 61c4efe2cb
commit 8c9570530c
3 changed files with 13 additions and 0 deletions
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3
qemu-config.c
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@ -537,6 +537,9 @@ QemuOptsList qemu_spice_opts = {
},{
.name = "playback-compression",
.type = QEMU_OPT_BOOL,
}, {
.name = "seamless-migration",
.type = QEMU_OPT_BOOL,
},
{ /* end of list */ }
},

3
qemu-options.hx
View File

@ -920,6 +920,9 @@ Enable/disable passing mouse events via vdagent. Default is on.
@item playback-compression=[on|off]
Enable/disable audio stream compression (using celt 0.5.1). Default is on.
@item seamless-migration=[on|off]
Enable/disable spice seamless migration. Default is off.
@end table
ETEXI

7
ui/spice-core.c
View File

@ -585,6 +585,9 @@ void qemu_spice_init(void)
int port, tls_port, len, addr_flags;
spice_image_compression_t compression;
spice_wan_compression_t wan_compr;
#if SPICE_SERVER_VERSION >= 0x000b02 /* 0.11.2 */
bool seamless_migration;
#endif
qemu_thread_get_self(&me);
@ -728,6 +731,10 @@ void qemu_spice_init(void)
spice_server_set_uuid(spice_server, qemu_uuid);
#endif
#if SPICE_SERVER_VERSION >= 0x000b02 /* 0.11.2 */
seamless_migration = qemu_opt_get_bool(opts, "seamless-migration", 0);
spice_server_set_seamless_migration(spice_server, seamless_migration);
#endif
if (0 != spice_server_init(spice_server, &core_interface)) {
error_report("failed to initialize spice server");
exit(1);