From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53660) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z4o61-00072m-IC for qemu-devel@nongnu.org; Tue, 16 Jun 2015 06:28:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z4o60-00018F-8R for qemu-devel@nongnu.org; Tue, 16 Jun 2015 06:27:57 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48439) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z4o60-000189-1i for qemu-devel@nongnu.org; Tue, 16 Jun 2015 06:27:56 -0400 From: "Dr. David Alan Gilbert (git)" Date: Tue, 16 Jun 2015 11:26:36 +0100 Message-Id: <1434450415-11339-24-git-send-email-dgilbert@redhat.com> In-Reply-To: <1434450415-11339-1-git-send-email-dgilbert@redhat.com> References: <1434450415-11339-1-git-send-email-dgilbert@redhat.com> Subject: [Qemu-devel] [PATCH v7 23/42] MIGRATION_STATUS_POSTCOPY_ACTIVE: Add new migration state List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aarcange@redhat.com, yamahata@private.email.ne.jp, quintela@redhat.com, liang.z.li@intel.com, luis@cs.umu.se, amit.shah@redhat.com, pbonzini@redhat.com, david@gibson.dropbear.id.au From: "Dr. David Alan Gilbert" 'MIGRATION_STATUS_POSTCOPY_ACTIVE' is entered after migrate_start_postcopy 'migration_postcopy_phase' is provided for other sections to know if they're in postcopy. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: David Gibson Reviewed-by: Eric Blake --- include/migration/migration.h | 2 ++ migration/migration.c | 56 ++++++++++++++++++++++++++++++++++++------- qapi-schema.json | 4 +++- trace-events | 1 + 4 files changed, 54 insertions(+), 9 deletions(-) diff --git a/include/migration/migration.h b/include/migration/migration.h index e973490..2a22381 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -154,6 +154,8 @@ MigrationState *migrate_init(const MigrationParams *params); bool migration_in_setup(MigrationState *); bool migration_has_finished(MigrationState *); bool migration_has_failed(MigrationState *); +/* True if outgoing migration has entered postcopy phase */ +bool migration_postcopy_phase(MigrationState *); MigrationState *migrate_get_current(void); void migrate_compress_threads_create(void); diff --git a/migration/migration.c b/migration/migration.c index 6fc47f9..22be23e 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -288,6 +288,7 @@ static bool migration_already_active(MigrationState *ms) { switch (ms->state) { case MIGRATION_STATUS_ACTIVE: + case MIGRATION_STATUS_POSTCOPY_ACTIVE: case MIGRATION_STATUS_SETUP: return true; @@ -358,6 +359,39 @@ MigrationInfo *qmp_query_migrate(Error **errp) get_xbzrle_cache_stats(info); break; + case MIGRATION_STATUS_POSTCOPY_ACTIVE: + /* Mostly the same as active; TODO add some postcopy stats */ + info->has_status = true; + info->has_total_time = true; + info->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + - s->total_time; + info->has_expected_downtime = true; + info->expected_downtime = s->expected_downtime; + info->has_setup_time = true; + info->setup_time = s->setup_time; + + info->has_ram = true; + info->ram = g_malloc0(sizeof(*info->ram)); + info->ram->transferred = ram_bytes_transferred(); + info->ram->remaining = ram_bytes_remaining(); + info->ram->total = ram_bytes_total(); + info->ram->duplicate = dup_mig_pages_transferred(); + info->ram->skipped = skipped_mig_pages_transferred(); + info->ram->normal = norm_mig_pages_transferred(); + info->ram->normal_bytes = norm_mig_bytes_transferred(); + info->ram->dirty_pages_rate = s->dirty_pages_rate; + info->ram->mbps = s->mbps; + + if (blk_mig_active()) { + info->has_disk = true; + 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(); + } + + get_xbzrle_cache_stats(info); + break; case MIGRATION_STATUS_COMPLETED: get_xbzrle_cache_stats(info); @@ -399,8 +433,7 @@ void qmp_migrate_set_capabilities(MigrationCapabilityStatusList *params, MigrationState *s = migrate_get_current(); MigrationCapabilityStatusList *cap; - if (s->state == MIGRATION_STATUS_ACTIVE || - s->state == MIGRATION_STATUS_SETUP) { + if (migration_already_active(s)) { error_set(errp, QERR_MIGRATION_ACTIVE); return; } @@ -531,7 +564,8 @@ static void migrate_fd_cleanup(void *opaque) s->file = NULL; } - assert(s->state != MIGRATION_STATUS_ACTIVE); + assert((s->state != MIGRATION_STATUS_ACTIVE) && + (s->state != MIGRATION_STATUS_POSTCOPY_ACTIVE)); if (s->state != MIGRATION_STATUS_COMPLETED) { qemu_savevm_state_cancel(); @@ -566,8 +600,7 @@ static void migrate_fd_cancel(MigrationState *s) do { old_state = s->state; - if (old_state != MIGRATION_STATUS_SETUP && - old_state != MIGRATION_STATUS_ACTIVE) { + if (!migration_already_active(s)) { break; } migrate_set_state(s, old_state, MIGRATION_STATUS_CANCELLING); @@ -611,6 +644,11 @@ bool migration_has_failed(MigrationState *s) s->state == MIGRATION_STATUS_FAILED); } +bool migration_postcopy_phase(MigrationState *s) +{ + return (s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE); +} + MigrationState *migrate_init(const MigrationParams *params) { MigrationState *s = migrate_get_current(); @@ -692,8 +730,7 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk, params.blk = has_blk && blk; params.shared = has_inc && inc; - if (s->state == MIGRATION_STATUS_ACTIVE || - s->state == MIGRATION_STATUS_SETUP || + if (migration_already_active(s) || s->state == MIGRATION_STATUS_CANCELLING) { error_set(errp, QERR_MIGRATION_ACTIVE); return; @@ -1041,7 +1078,10 @@ static void *migration_thread(void *opaque) s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start; migrate_set_state(s, MIGRATION_STATUS_SETUP, MIGRATION_STATUS_ACTIVE); - while (s->state == MIGRATION_STATUS_ACTIVE) { + trace_migration_thread_setup_complete(); + + while (s->state == MIGRATION_STATUS_ACTIVE || + s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE) { int64_t current_time; uint64_t pending_size; diff --git a/qapi-schema.json b/qapi-schema.json index b0177bb..5e2f487 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -424,6 +424,8 @@ # # @active: in the process of doing migration. # +# @postcopy-active: like active, but now in postcopy mode. (since 2.4) +# # @completed: migration is finished. # # @failed: some error occurred during migration process. @@ -433,7 +435,7 @@ ## { 'enum': 'MigrationStatus', 'data': [ 'none', 'setup', 'cancelling', 'cancelled', - 'active', 'completed', 'failed' ] } + 'active', 'postcopy-active', 'completed', 'failed' ] } ## # @MigrationInfo diff --git a/trace-events b/trace-events index 339eb71..72e9889 100644 --- a/trace-events +++ b/trace-events @@ -1421,6 +1421,7 @@ migrate_fd_error(void) "" migrate_fd_cancel(void) "" migrate_pending(uint64_t size, uint64_t max, uint64_t post, uint64_t nonpost) "pending size %" PRIu64 " max %" PRIu64 " (post=%" PRIu64 " nonpost=%" PRIu64 ")" migrate_send_rp_message(int msg_type, uint16_t len) "%d: len %d" +migration_thread_setup_complete(void) "" open_return_path_on_source(void) "" open_return_path_on_source_continue(void) "" source_return_path_thread_bad_end(void) "" -- 2.4.3