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| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2016-02-22 17:17:32 +0000 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2016-02-23 12:05:02 +0100 |
| commit | b82fc321bf02aaceea0beb4dfabb4ca86a9a5ff6 (patch) | |
| tree | 1fb20198c649bbfba261fc60eec192e69fcf03d1 /include/migration | |
| parent | 22672a3798f1d705c2b1e14a246efd4a8e4bc661 (diff) | |
| download | qemu-b82fc321bf02aaceea0beb4dfabb4ca86a9a5ff6.tar.gz | |
Postcopy+spice: Pass spice migration data earlier
Spice hooks the migration status changes to figure out when to
transmit information to the new spice server; but the migration
status in postcopy doesn't quite fit - the destination starts
running before the end of the source migration.
It's not a case of hanging off the migration status change to
postcopy-active either, since that happens before we stop the
guest CPU.
Fix it by sending a notify just after sending the device state,
and adding a flag that can be tested by the notify receiver.
Symptom:
spice handover doesn't work with the error:
red_worker.c:11540:display_channel_wait_for_migrate_data: timeout
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Message-id: 1456161452-25318-1-git-send-email-dgilbert@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'include/migration')
| -rw-r--r-- | include/migration/migration.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/migration/migration.h b/include/migration/migration.h index 74684ad929..97622e4fd2 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -159,6 +159,8 @@ struct MigrationState /* Flag set once the migration has been asked to enter postcopy */ bool start_postcopy; + /* Flag set after postcopy has sent the device state */ + bool postcopy_after_devices; /* Flag set once the migration thread is running (and needs joining) */ bool migration_thread_running; @@ -212,6 +214,8 @@ bool migration_has_finished(MigrationState *); bool migration_has_failed(MigrationState *); /* True if outgoing migration has entered postcopy phase */ bool migration_in_postcopy(MigrationState *); +/* ...and after the device transmission */ +bool migration_in_postcopy_after_devices(MigrationState *); MigrationState *migrate_get_current(void); void migrate_compress_threads_create(void); |