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bh=Qw1VERdZScWEw2GW3fkpxjBe9i8Cmxz9eFQMCTMwu6I=; b=BIDvoG7nDqa+oGNbIR113O93xzxwTqDNnceJKP0gfmDYA8+9y71KVWHuUa14IhLOaaJ+JF BZ/CE0Tyvju8DdnWCmJK+P5C1AOfPvCGQj955tCpo5m31wZzJuvmEIcIYFG3lM+v9DhrS4 fsbSUJxj1gHCGpVaEps2NYqVD6ZJnQY= X-MC-Unique: aYhNrEvOMYKoWI7TJml5AA-1 From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH 24/29] migration, vl: start migration via qmp_migrate_incoming Date: Tue, 27 Oct 2020 14:21:39 -0400 Message-Id: <20201027182144.3315885-25-pbonzini@redhat.com> In-Reply-To: <20201027182144.3315885-1-pbonzini@redhat.com> References: <20201027182144.3315885-1-pbonzini@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Make qemu_start_incoming_migration local to migration/migration.c. By using the runstate instead of a separate flag, vl need not do anything to setup deferred incoming migration. qmp_migrate_incoming also does not need the deferred_incoming flag anymore, because "-incoming PROTOCOL" will clear the "once" flag before the main loop starts. Therefore, later invocations of the migrate-incoming command will fail with the existing "The incoming migration has already been started" error message. Signed-off-by: Paolo Bonzini --- include/migration/misc.h | 1 - migration/migration.c | 33 ++++++++------------------------- softmmu/vl.c | 11 +++++++---- 3 files changed, 15 insertions(+), 30 deletions(-) diff --git a/include/migration/misc.h b/include/migration/misc.h index 34e7d75713..bccc1b6b44 100644 --- a/include/migration/misc.h +++ b/include/migration/misc.h @@ -58,7 +58,6 @@ void dump_vmstate_json_to_file(FILE *out_fp); /* migration/migration.c */ void migration_object_init(void); void migration_shutdown(void); -void qemu_start_incoming_migration(const char *uri, Error **errp); bool migration_is_idle(void); bool migration_is_active(MigrationState *); void add_migration_state_change_notifier(Notifier *notify); diff --git a/migration/migration.c b/migration/migration.c index f48b03cac2..d078094c56 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -114,8 +114,6 @@ static NotifierList migration_state_notifiers =3D NOTIFIER_LIST_INITIALIZER(migration_state_notifiers); =20 -static bool deferred_incoming; - /* Messages sent on the return path from destination to source */ enum mig_rp_message_type { MIG_RP_MSG_INVALID =3D 0, /* Must be 0 */ @@ -257,19 +255,6 @@ static bool migrate_late_block_activate(void) MIGRATION_CAPABILITY_LATE_BLOCK_ACTIVATE]; } =20 -/* - * Called on -incoming with a defer: uri. - * The migration can be started later after any parameters have been - * changed. - */ -static void deferred_incoming_migration(Error **errp) -{ - if (deferred_incoming) { - error_setg(errp, "Incoming migration already deferred"); - } - deferred_incoming =3D true; -} - /* * Send a message on the return channel back to the source * of the migration. @@ -380,16 +365,14 @@ void migrate_add_address(SocketAddress *address) addrs->value =3D QAPI_CLONE(SocketAddress, address); } =20 -void qemu_start_incoming_migration(const char *uri, Error **errp) +static void qemu_start_incoming_migration(const char *uri, Error **errp) { const char *p =3D NULL; =20 qapi_event_send_migration(MIGRATION_STATUS_SETUP); - if (!strcmp(uri, "defer")) { - deferred_incoming_migration(errp); - } else if (strstart(uri, "tcp:", &p) || - strstart(uri, "unix:", NULL) || - strstart(uri, "vsock:", NULL)) { + if (strstart(uri, "tcp:", &p) || + strstart(uri, "unix:", NULL) || + strstart(uri, "vsock:", NULL)) { socket_start_incoming_migration(p ? p : uri, errp); #ifdef CONFIG_RDMA } else if (strstart(uri, "rdma:", &p)) { @@ -1926,14 +1909,14 @@ void qmp_migrate_incoming(const char *uri, Error **= errp) Error *local_err =3D NULL; static bool once =3D true; =20 - if (!deferred_incoming) { - error_setg(errp, "For use with '-incoming defer'"); - return; - } if (!once) { error_setg(errp, "The incoming migration has already been started"= ); return; } + if (!runstate_check(RUN_STATE_INMIGRATE)) { + error_setg(errp, "'-incoming' was not specified on the command lin= e"); + return; + } =20 qemu_start_incoming_migration(uri, &local_err); =20 diff --git a/softmmu/vl.c b/softmmu/vl.c index ae2854d8af..583366510b 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -109,6 +109,7 @@ #include "qapi/qapi-visit-block-core.h" #include "qapi/qapi-visit-ui.h" #include "qapi/qapi-commands-block-core.h" +#include "qapi/qapi-commands-migration.h" #include "qapi/qapi-commands-run-state.h" #include "qapi/qapi-commands-ui.h" #include "qapi/qmp/qerror.h" @@ -4557,10 +4558,12 @@ void qemu_init(int argc, char **argv, char **envp) } if (incoming) { Error *local_err =3D NULL; - qemu_start_incoming_migration(incoming, &local_err); - if (local_err) { - error_reportf_err(local_err, "-incoming %s: ", incoming); - exit(1); + if (strcmp(incoming, "defer") !=3D 0) { + qmp_migrate_incoming(incoming, &local_err); + if (local_err) { + error_reportf_err(local_err, "-incoming %s: ", incoming); + exit(1); + } } } else if (autostart) { vm_start(); --=20 2.26.2