Commit 89632faf authored by Peter Xu's avatar Peter Xu Committed by Juan Quintela
Browse files

migration: export parameters to props 



Export migration parameters to qdev properties. Then we can use, for
example:

  -global migration.x-cpu-throttle-initial=xxx

To specify migration parameters during init.

Prefix "x-" is appended for each parameter exported to show that this is
not a stable interface, and only for debugging/testing purpose.

Reviewed-by: default avatarJuan Quintela <quintela@redhat.com>
Signed-off-by: default avatarPeter Xu <peterx@redhat.com>
Message-Id: <1500349150-13240-3-git-send-email-peterx@redhat.com>
Signed-off-by: default avatarJuan Quintela <quintela@redhat.com>
parent 07d1d063

migration/migration.c

+25 −10
Original line number Diff line number Diff line
@@ -2010,6 +2010,31 @@ static Property migration_properties[] = { 
                     send_configuration, true),

    DEFINE_PROP_BOOL("send-section-footer", MigrationState,

                     send_section_footer, true),



    /* Migration parameters */

    DEFINE_PROP_INT64("x-compress-level", MigrationState,

                      parameters.compress_level,

                      DEFAULT_MIGRATE_COMPRESS_LEVEL),

    DEFINE_PROP_INT64("x-compress-threads", MigrationState,

                      parameters.compress_threads,

                      DEFAULT_MIGRATE_COMPRESS_THREAD_COUNT),

    DEFINE_PROP_INT64("x-decompress-threads", MigrationState,

                      parameters.decompress_threads,

                      DEFAULT_MIGRATE_DECOMPRESS_THREAD_COUNT),

    DEFINE_PROP_INT64("x-cpu-throttle-initial", MigrationState,

                      parameters.cpu_throttle_initial,

                      DEFAULT_MIGRATE_CPU_THROTTLE_INITIAL),

    DEFINE_PROP_INT64("x-cpu-throttle-increment", MigrationState,

                      parameters.cpu_throttle_increment,

                      DEFAULT_MIGRATE_CPU_THROTTLE_INCREMENT),

    DEFINE_PROP_INT64("x-max-bandwidth", MigrationState,

                      parameters.max_bandwidth, MAX_THROTTLE),

    DEFINE_PROP_INT64("x-downtime-limit", MigrationState,

                      parameters.downtime_limit,

                      DEFAULT_MIGRATE_SET_DOWNTIME),

    DEFINE_PROP_INT64("x-checkpoint-delay", MigrationState,

                      parameters.x_checkpoint_delay,

                      DEFAULT_MIGRATE_X_CHECKPOINT_DELAY),

    DEFINE_PROP_END_OF_LIST(),

};
@@ -2028,16 +2053,6 @@ static void migration_instance_init(Object *obj) 
    ms->state = MIGRATION_STATUS_NONE;

    ms->xbzrle_cache_size = DEFAULT_MIGRATE_CACHE_SIZE;

    ms->mbps = -1;

    ms->parameters = (MigrationParameters) {

        .compress_level = DEFAULT_MIGRATE_COMPRESS_LEVEL,

        .compress_threads = DEFAULT_MIGRATE_COMPRESS_THREAD_COUNT,

        .decompress_threads = DEFAULT_MIGRATE_DECOMPRESS_THREAD_COUNT,

        .cpu_throttle_initial = DEFAULT_MIGRATE_CPU_THROTTLE_INITIAL,

        .cpu_throttle_increment = DEFAULT_MIGRATE_CPU_THROTTLE_INCREMENT,

        .max_bandwidth = MAX_THROTTLE,

        .downtime_limit = DEFAULT_MIGRATE_SET_DOWNTIME,

        .x_checkpoint_delay = DEFAULT_MIGRATE_X_CHECKPOINT_DELAY,

    };

    ms->parameters.tls_creds = g_strdup("");

    ms->parameters.tls_hostname = g_strdup("");

}