diff options
Diffstat (limited to 'migration/migration.c')
-rw-r--r-- | migration/migration.c | 137 |
1 files changed, 50 insertions, 87 deletions
diff --git a/migration/migration.c b/migration/migration.c index b5af6b5105..e1b269624c 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -27,7 +27,6 @@ #include "sysemu/cpu-throttle.h" #include "rdma.h" #include "ram.h" -#include "ram-compress.h" #include "migration/global_state.h" #include "migration/misc.h" #include "migration.h" @@ -46,7 +45,6 @@ #include "qapi/qmp/qerror.h" #include "qapi/qmp/qnull.h" #include "qemu/rcu.h" -#include "block.h" #include "postcopy-ram.h" #include "qemu/thread.h" #include "trace.h" @@ -72,6 +70,8 @@ #define NOTIFIER_ELEM_INIT(array, elem) \ [elem] = NOTIFIER_WITH_RETURN_LIST_INITIALIZER((array)[elem]) +#define INMIGRATE_DEFAULT_EXIT_ON_ERROR true + static NotifierWithReturnList migration_state_notifiers[] = { NOTIFIER_ELEM_INIT(migration_state_notifiers, MIG_MODE_NORMAL), NOTIFIER_ELEM_INIT(migration_state_notifiers, MIG_MODE_CPR_REBOOT), @@ -234,9 +234,10 @@ void migration_object_init(void) qemu_cond_init(¤t_incoming->page_request_cond); current_incoming->page_requested = g_tree_new(page_request_addr_cmp); + current_incoming->exit_on_error = INMIGRATE_DEFAULT_EXIT_ON_ERROR; + migration_object_check(current_migration, &error_fatal); - blk_mig_init(); ram_mig_init(); dirty_bitmap_mig_init(); } @@ -354,7 +355,6 @@ void migration_incoming_state_destroy(void) struct MigrationIncomingState *mis = migration_incoming_get_current(); multifd_recv_cleanup(); - compress_threads_load_cleanup(); if (mis->to_src_file) { /* Tell source that we are done */ @@ -513,13 +513,13 @@ void migration_incoming_disable_colo(void) int migration_incoming_enable_colo(void) { #ifndef CONFIG_REPLICATION - error_report("ENABLE_COLO command come in migration stream, but COLO " - "module is not built in"); + error_report("ENABLE_COLO command come in migration stream, but the " + "replication module is not built in"); return -ENOTSUP; #endif if (!migrate_colo()) { - error_report("ENABLE_COLO command come in migration stream, but c-colo " + error_report("ENABLE_COLO command come in migration stream, but x-colo " "capability is not set"); return -EINVAL; } @@ -647,10 +647,6 @@ static void qemu_start_incoming_migration(const char *uri, bool has_channels, } #ifdef CONFIG_RDMA } else if (addr->transport == MIGRATION_ADDRESS_TYPE_RDMA) { - if (migrate_compress()) { - error_setg(errp, "RDMA and compression can't be used together"); - return; - } if (migrate_xbzrle()) { error_setg(errp, "RDMA and XBZRLE can't be used together"); return; @@ -735,17 +731,14 @@ static void process_incoming_migration_bh(void *opaque) static void coroutine_fn process_incoming_migration_co(void *opaque) { + MigrationState *s = migrate_get_current(); MigrationIncomingState *mis = migration_incoming_get_current(); PostcopyState ps; int ret; + Error *local_err = NULL; assert(mis->from_src_file); - if (compress_threads_load_setup(mis->from_src_file)) { - error_report("Failed to setup decompress threads"); - goto fail; - } - mis->largest_page_size = qemu_ram_pagesize_largest(); postcopy_state_set(POSTCOPY_INCOMING_NONE); migrate_set_state(&mis->state, MIGRATION_STATUS_SETUP, @@ -779,19 +772,13 @@ process_incoming_migration_co(void *opaque) } if (ret < 0) { - MigrationState *s = migrate_get_current(); - - if (migrate_has_error(s)) { - WITH_QEMU_LOCK_GUARD(&s->error_mutex) { - error_report_err(s->error); - } - } - error_report("load of migration failed: %s", strerror(-ret)); + error_setg(&local_err, "load of migration failed: %s", strerror(-ret)); goto fail; } - if (colo_incoming_co() < 0) { - goto fail; + if (migration_incoming_colo_enabled()) { + /* yield until COLO exit */ + colo_incoming_co(); } migration_bh_schedule(process_incoming_migration_bh, mis); @@ -799,12 +786,19 @@ process_incoming_migration_co(void *opaque) fail: migrate_set_state(&mis->state, MIGRATION_STATUS_ACTIVE, MIGRATION_STATUS_FAILED); - qemu_fclose(mis->from_src_file); + migrate_set_error(s, local_err); + error_free(local_err); - multifd_recv_cleanup(); - compress_threads_load_cleanup(); + migration_incoming_state_destroy(); + + if (mis->exit_on_error) { + WITH_QEMU_LOCK_GUARD(&s->error_mutex) { + error_report_err(s->error); + s->error = NULL; + } - exit(EXIT_FAILURE); + exit(EXIT_FAILURE); + } } /** @@ -1149,8 +1143,6 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s) info->ram->transferred = migration_transferred_bytes(); info->ram->total = ram_bytes_total(); info->ram->duplicate = stat64_get(&mig_stats.zero_pages); - /* legacy value. It is not used anymore */ - info->ram->skipped = 0; info->ram->normal = stat64_get(&mig_stats.normal_pages); info->ram->normal_bytes = info->ram->normal * page_size; info->ram->mbps = s->mbps; @@ -1178,8 +1170,6 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s) info->xbzrle_cache->overflow = xbzrle_counters.overflow; } - populate_compress(info); - if (cpu_throttle_active()) { info->has_cpu_throttle_percentage = true; info->cpu_throttle_percentage = cpu_throttle_get_percentage(); @@ -1201,16 +1191,6 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s) } } -static void populate_disk_info(MigrationInfo *info) -{ - if (blk_mig_active()) { - info->disk = g_malloc0(sizeof(*info->disk)); - info->disk->transferred = blk_mig_bytes_transferred(); - info->disk->remaining = blk_mig_bytes_remaining(); - info->disk->total = blk_mig_bytes_total(); - } -} - static void fill_source_migration_info(MigrationInfo *info) { MigrationState *s = migrate_get_current(); @@ -1253,7 +1233,6 @@ static void fill_source_migration_info(MigrationInfo *info) /* TODO add some postcopy stats */ populate_time_info(info, s); populate_ram_info(info, s); - populate_disk_info(info); migration_populate_vfio_info(info); break; case MIGRATION_STATUS_COLO: @@ -1313,6 +1292,15 @@ static void fill_destination_migration_info(MigrationInfo *info) break; } info->status = mis->state; + + if (!info->error_desc) { + MigrationState *s = migrate_get_current(); + QEMU_LOCK_GUARD(&s->error_mutex); + + if (s->error) { + info->error_desc = g_strdup(error_get_pretty(s->error)); + } + } } MigrationInfo *qmp_query_migrate(Error **errp) @@ -1409,7 +1397,6 @@ static void migrate_fd_cleanup(MigrationState *s) type = migration_has_failed(s) ? MIG_EVENT_PRECOPY_FAILED : MIG_EVENT_PRECOPY_DONE; migration_call_notifiers(s, type, NULL); - block_cleanup_parameters(); yank_unregister_instance(MIGRATION_YANK_INSTANCE); } @@ -1421,6 +1408,9 @@ static void migrate_fd_cleanup_bh(void *opaque) void migrate_set_error(MigrationState *s, const Error *error) { QEMU_LOCK_GUARD(&s->error_mutex); + + trace_migrate_error(error_get_pretty(error)); + if (!s->error) { s->error = error_copy(error); } @@ -1444,7 +1434,6 @@ static void migrate_error_free(MigrationState *s) static void migrate_fd_error(MigrationState *s, const Error *error) { - trace_migrate_fd_error(error_get_pretty(error)); assert(s->to_dst_file == NULL); migrate_set_state(&s->state, MIGRATION_STATUS_SETUP, MIGRATION_STATUS_FAILED); @@ -1794,10 +1783,13 @@ void migrate_del_blocker(Error **reasonp) } void qmp_migrate_incoming(const char *uri, bool has_channels, - MigrationChannelList *channels, Error **errp) + MigrationChannelList *channels, + bool has_exit_on_error, bool exit_on_error, + Error **errp) { Error *local_err = NULL; static bool once = true; + MigrationIncomingState *mis = migration_incoming_get_current(); if (!once) { error_setg(errp, "The incoming migration has already been started"); @@ -1812,6 +1804,9 @@ void qmp_migrate_incoming(const char *uri, bool has_channels, return; } + mis->exit_on_error = + has_exit_on_error ? exit_on_error : INMIGRATE_DEFAULT_EXIT_ON_ERROR; + qemu_start_incoming_migration(uri, has_channels, channels, &local_err); if (local_err) { @@ -1913,19 +1908,8 @@ bool migration_is_blocked(Error **errp) } /* Returns true if continue to migrate, or false if error detected */ -static bool migrate_prepare(MigrationState *s, bool blk, bool blk_inc, - bool resume, Error **errp) +static bool migrate_prepare(MigrationState *s, bool resume, Error **errp) { - if (blk_inc) { - warn_report("parameter 'inc' is deprecated;" - " use blockdev-mirror with NBD instead"); - } - - if (blk) { - warn_report("parameter 'blk' is deprecated;" - " use blockdev-mirror with NBD instead"); - } - if (resume) { if (s->state != MIGRATION_STATUS_POSTCOPY_PAUSED) { error_setg(errp, "Cannot resume if there is no " @@ -2010,26 +1994,6 @@ static bool migrate_prepare(MigrationState *s, bool blk, bool blk_inc, } } - if (blk || blk_inc) { - if (migrate_colo()) { - error_setg(errp, "No disk migration is required in COLO mode"); - return false; - } - if (migrate_block() || migrate_block_incremental()) { - error_setg(errp, "Command options are incompatible with " - "current migration capabilities"); - return false; - } - if (!migrate_cap_set(MIGRATION_CAPABILITY_BLOCK, true, errp)) { - return false; - } - s->must_remove_block_options = true; - } - - if (blk_inc) { - migrate_set_block_incremental(true); - } - if (migrate_init(s, errp)) { return false; } @@ -2038,8 +2002,7 @@ static bool migrate_prepare(MigrationState *s, bool blk, bool blk_inc, } void qmp_migrate(const char *uri, bool has_channels, - MigrationChannelList *channels, bool has_blk, bool blk, - bool has_inc, bool inc, bool has_detach, bool detach, + MigrationChannelList *channels, bool has_detach, bool detach, bool has_resume, bool resume, Error **errp) { bool resume_requested; @@ -2079,8 +2042,7 @@ void qmp_migrate(const char *uri, bool has_channels, } resume_requested = has_resume && resume; - if (!migrate_prepare(s, has_blk && blk, has_inc && inc, - resume_requested, errp)) { + if (!migrate_prepare(s, resume_requested, errp)) { /* Error detected, put into errp */ return; } @@ -2113,7 +2075,6 @@ void qmp_migrate(const char *uri, bool has_channels, "a valid migration protocol"); migrate_set_state(&s->state, MIGRATION_STATUS_SETUP, MIGRATION_STATUS_FAILED); - block_cleanup_parameters(); } if (local_err) { @@ -3033,13 +2994,15 @@ static MigThrError postcopy_pause(MigrationState *s) } } -void migration_file_set_error(int err) +void migration_file_set_error(int ret, Error *err) { MigrationState *s = current_migration; WITH_QEMU_LOCK_GUARD(&s->qemu_file_lock) { if (s->to_dst_file) { - qemu_file_set_error(s->to_dst_file, err); + qemu_file_set_error_obj(s->to_dst_file, ret, err); + } else if (err) { + error_report_err(err); } } } |