From 8b0b29dcec59730e6b21b253a6b43271cb3d831b Mon Sep 17 00:00:00 2001 From: Peter Xu Date: Tue, 18 Jul 2017 11:39:06 +0800 Subject: [PATCH] migration: check global params for validity Adding validity check for the migration parameters passed in via global properties. Signed-off-by: Peter Xu Reviewed-by: Juan Quintela Message-Id: <1500349150-13240-7-git-send-email-peterx@redhat.com> Signed-off-by: Juan Quintela --- migration/migration.c | 38 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 36 insertions(+), 2 deletions(-) diff --git a/migration/migration.c b/migration/migration.c index 13d9f007f2..c59dad9948 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -102,14 +102,22 @@ enum mig_rp_message_type { static MigrationState *current_migration; +static bool migration_object_check(MigrationState *ms, Error **errp); + void migration_object_init(void) { MachineState *ms = MACHINE(qdev_get_machine()); + Error *err = NULL; /* This can only be called once. */ assert(!current_migration); current_migration = MIGRATION_OBJ(object_new(TYPE_MIGRATION)); + if (!migration_object_check(current_migration, &err)) { + error_report_err(err); + exit(1); + } + /* * We cannot really do this in migration_instance_init() since at * that time global properties are not yet applied, then this @@ -2102,12 +2110,38 @@ static void migration_class_init(ObjectClass *klass, void *data) static void migration_instance_init(Object *obj) { MigrationState *ms = MIGRATION_OBJ(obj); + MigrationParameters *params = &ms->parameters; ms->state = MIGRATION_STATUS_NONE; ms->xbzrle_cache_size = DEFAULT_MIGRATE_CACHE_SIZE; ms->mbps = -1; - ms->parameters.tls_creds = g_strdup(""); - ms->parameters.tls_hostname = g_strdup(""); + + params->tls_hostname = g_strdup(""); + params->tls_creds = g_strdup(""); + + /* Set has_* up only for parameter checks */ + params->has_compress_level = true; + params->has_compress_threads = true; + params->has_decompress_threads = true; + params->has_cpu_throttle_initial = true; + params->has_cpu_throttle_increment = true; + params->has_max_bandwidth = true; + params->has_downtime_limit = true; + params->has_x_checkpoint_delay = true; + params->has_block_incremental = true; +} + +/* + * Return true if check pass, false otherwise. Error will be put + * inside errp if provided. + */ +static bool migration_object_check(MigrationState *ms, Error **errp) +{ + if (!migrate_params_check(&ms->parameters, errp)) { + return false; + } + + return true; } static const TypeInfo migration_type = {