@@ -524,6 +524,9 @@ QemuOptsList qemu_spice_opts = {
},{
.name = "playback-compression",
.type = QEMU_OPT_BOOL,
+ }, {
+ .name = "seamless-migration",
+ .type = QEMU_OPT_BOOL,
},
{ /* end of list */ }
},
@@ -917,6 +917,9 @@ 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
@@ -584,6 +584,9 @@ 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);
@@ -727,6 +730,10 @@ 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);
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> --- qemu-config.c | 3 +++ qemu-options.hx | 3 +++ ui/spice-core.c | 7 +++++++ 3 files changed, 13 insertions(+), 0 deletions(-)