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Tue, 5 Nov 2024 18:09:02 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id sLYxFz5fKmeCZwAAD6G6ig (envelope-from ); Tue, 05 Nov 2024 18:09:02 +0000 From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , Peter Maydell , =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , =?utf-8?q?Ale?= =?utf-8?q?x_Benn=C3=A9e?= , Laurent Vivier , Paolo Bonzini Subject: [PATCH 06/22] tests/qtest/migration: Move qmp helpers to a separate file Date: Tue, 5 Nov 2024 15:08:21 -0300 Message-Id: <20241105180837.5990-7-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20241105180837.5990-1-farosas@suse.de> References: <20241105180837.5990-1-farosas@suse.de> MIME-Version: 1.0 X-Rspamd-Queue-Id: A8C6C21D3A X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email,suse.de:dkim,suse.de:mid]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; RCPT_COUNT_SEVEN(0.00)[7]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; TO_DN_SOME(0.00)[]; DKIM_TRACE(0.00)[suse.de:+] X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Action: no action X-Spam-Score: -3.01 Received-SPF: pass client-ip=2a07:de40:b251:101:10:150:64:1; envelope-from=farosas@suse.de; helo=smtp-out1.suse.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org We current have a bunch of non-test functions in migration-test.c and some others in migration-helpers.c. In order to split migration-test.c into separate test binaries, these helpers need to go somewhere else. To avoid making migration-helpers even larger, move all QMP-related functions into a new migration-qmp.c file and put it under the qtest/migration/ directory. The new file holds everything that has as its main responsibility to call into QMP. Signed-off-by: Fabiano Rosas --- tests/qtest/meson.build | 1 + tests/qtest/migration-helpers.c | 250 +------------ tests/qtest/migration-helpers.h | 18 +- tests/qtest/migration-test.c | 237 +----------- tests/qtest/migration/migration-qmp.c | 485 +++++++++++++++++++++++++ tests/qtest/migration/migration-util.h | 45 +++ tests/qtest/virtio-net-failover.c | 1 + 7 files changed, 541 insertions(+), 496 deletions(-) create mode 100644 tests/qtest/migration/migration-qmp.c create mode 100644 tests/qtest/migration/migration-util.h diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index f6001a0b0f..30dff3abe0 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -331,6 +331,7 @@ tpmemu_files = ['tpm-emu.c', 'tpm-util.c', 'tpm-tests.c'] migration_files = [files( 'migration-helpers.c', 'migration/bootfile.c', + 'migration/migration-qmp.c', )] if gnutls.found() diff --git a/tests/qtest/migration-helpers.c b/tests/qtest/migration-helpers.c index 2786f9c860..218ee4e59f 100644 --- a/tests/qtest/migration-helpers.c +++ b/tests/qtest/migration-helpers.c @@ -12,7 +12,6 @@ #include "qemu/osdep.h" #include "qemu/ctype.h" -#include "qapi/qmp/qjson.h" #include "qapi/qapi-visit-sockets.h" #include "qapi/qobject-input-visitor.h" #include "qapi/error.h" @@ -23,14 +22,6 @@ #include "migration-helpers.h" #include "migration/bootfile.h" -/* - * Number of seconds we wait when looking for migration - * status changes, to avoid test suite hanging forever - * when things go wrong. Needs to be higher enough to - * avoid false positives on loaded hosts. - */ -#define MIGRATION_STATUS_WAIT_TIMEOUT 120 - static char *SocketAddress_to_str(SocketAddress *addr) { switch (addr->type) { @@ -100,8 +91,7 @@ static SocketAddressList *migrate_get_socket_address(QTestState *who) return addrs; } -static char * -migrate_get_connect_uri(QTestState *who) +char *migrate_get_connect_uri(QTestState *who) { SocketAddressList *addrs; char *connect_uri; @@ -126,7 +116,7 @@ migrate_get_connect_qdict(QTestState *who) return connect_qdict; } -static void migrate_set_ports(QTestState *to, QList *channel_list) +void migrate_set_ports(QTestState *to, QList *channel_list) { QDict *addr; QListEntry *entry; @@ -168,222 +158,6 @@ bool migrate_watch_for_events(QTestState *who, const char *name, return false; } -void migrate_qmp_fail(QTestState *who, const char *uri, - const char *channels, const char *fmt, ...) -{ - va_list ap; - QDict *args, *err; - - va_start(ap, fmt); - args = qdict_from_vjsonf_nofail(fmt, ap); - va_end(ap); - - g_assert(!qdict_haskey(args, "uri")); - if (uri) { - qdict_put_str(args, "uri", uri); - } - - g_assert(!qdict_haskey(args, "channels")); - if (channels) { - QObject *channels_obj = qobject_from_json(channels, &error_abort); - qdict_put_obj(args, "channels", channels_obj); - } - - err = qtest_qmp_assert_failure_ref( - who, "{ 'execute': 'migrate', 'arguments': %p}", args); - - g_assert(qdict_haskey(err, "desc")); - - qobject_unref(err); -} - -/* - * Send QMP command "migrate". - * Arguments are built from @fmt... (formatted like - * qobject_from_jsonf_nofail()) with "uri": @uri spliced in. - */ -void migrate_qmp(QTestState *who, QTestState *to, const char *uri, - const char *channels, const char *fmt, ...) -{ - va_list ap; - QDict *args; - g_autofree char *connect_uri = NULL; - - va_start(ap, fmt); - args = qdict_from_vjsonf_nofail(fmt, ap); - va_end(ap); - - g_assert(!qdict_haskey(args, "uri")); - if (uri) { - qdict_put_str(args, "uri", uri); - } else if (!channels) { - connect_uri = migrate_get_connect_uri(to); - qdict_put_str(args, "uri", connect_uri); - } - - g_assert(!qdict_haskey(args, "channels")); - if (channels) { - QObject *channels_obj = qobject_from_json(channels, &error_abort); - QList *channel_list = qobject_to(QList, channels_obj); - migrate_set_ports(to, channel_list); - qdict_put_obj(args, "channels", channels_obj); - } - - qtest_qmp_assert_success(who, - "{ 'execute': 'migrate', 'arguments': %p}", args); -} - -void migrate_set_capability(QTestState *who, const char *capability, - bool value) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'migrate-set-capabilities'," - "'arguments': { " - "'capabilities': [ { " - "'capability': %s, 'state': %i } ] } }", - capability, value); -} - -void migrate_incoming_qmp(QTestState *to, const char *uri, const char *fmt, ...) -{ - va_list ap; - QDict *args, *rsp; - - va_start(ap, fmt); - args = qdict_from_vjsonf_nofail(fmt, ap); - va_end(ap); - - g_assert(!qdict_haskey(args, "uri")); - qdict_put_str(args, "uri", uri); - - /* This function relies on the event to work, make sure it's enabled */ - migrate_set_capability(to, "events", true); - - rsp = qtest_qmp(to, "{ 'execute': 'migrate-incoming', 'arguments': %p}", - args); - - if (!qdict_haskey(rsp, "return")) { - g_autoptr(GString) s = qobject_to_json_pretty(QOBJECT(rsp), true); - g_test_message("%s", s->str); - } - - g_assert(qdict_haskey(rsp, "return")); - qobject_unref(rsp); - - migration_event_wait(to, "setup"); -} - -/* - * Note: caller is responsible to free the returned object via - * qobject_unref() after use - */ -QDict *migrate_query(QTestState *who) -{ - return qtest_qmp_assert_success_ref(who, "{ 'execute': 'query-migrate' }"); -} - -QDict *migrate_query_not_failed(QTestState *who) -{ - const char *status; - QDict *rsp = migrate_query(who); - status = qdict_get_str(rsp, "status"); - if (g_str_equal(status, "failed")) { - g_printerr("query-migrate shows failed migration: %s\n", - qdict_get_str(rsp, "error-desc")); - } - g_assert(!g_str_equal(status, "failed")); - return rsp; -} - -/* - * Note: caller is responsible to free the returned object via - * g_free() after use - */ -static gchar *migrate_query_status(QTestState *who) -{ - QDict *rsp_return = migrate_query(who); - gchar *status = g_strdup(qdict_get_str(rsp_return, "status")); - - g_assert(status); - qobject_unref(rsp_return); - - return status; -} - -static bool check_migration_status(QTestState *who, const char *goal, - const char **ungoals) -{ - bool ready; - char *current_status; - const char **ungoal; - - current_status = migrate_query_status(who); - ready = strcmp(current_status, goal) == 0; - if (!ungoals) { - g_assert_cmpstr(current_status, !=, "failed"); - /* - * If looking for a state other than completed, - * completion of migration would cause the test to - * hang. - */ - if (strcmp(goal, "completed") != 0) { - g_assert_cmpstr(current_status, !=, "completed"); - } - } else { - for (ungoal = ungoals; *ungoal; ungoal++) { - g_assert_cmpstr(current_status, !=, *ungoal); - } - } - g_free(current_status); - return ready; -} - -void wait_for_migration_status(QTestState *who, - const char *goal, const char **ungoals) -{ - g_test_timer_start(); - while (!check_migration_status(who, goal, ungoals)) { - usleep(1000); - - g_assert(g_test_timer_elapsed() < MIGRATION_STATUS_WAIT_TIMEOUT); - } -} - -void wait_for_migration_complete(QTestState *who) -{ - wait_for_migration_status(who, "completed", NULL); -} - -void wait_for_migration_fail(QTestState *from, bool allow_active) -{ - g_test_timer_start(); - QDict *rsp_return; - char *status; - bool failed; - - do { - status = migrate_query_status(from); - bool result = !strcmp(status, "setup") || !strcmp(status, "failed") || - (allow_active && !strcmp(status, "active")); - if (!result) { - fprintf(stderr, "%s: unexpected status status=%s allow_active=%d\n", - __func__, status, allow_active); - } - g_assert(result); - failed = !strcmp(status, "failed"); - g_free(status); - - g_assert(g_test_timer_elapsed() < MIGRATION_STATUS_WAIT_TIMEOUT); - } while (!failed); - - /* Is the machine currently running? */ - rsp_return = qtest_qmp_assert_success_ref(from, - "{ 'execute': 'query-status' }"); - g_assert(qdict_haskey(rsp_return, "running")); - g_assert(qdict_get_bool(rsp_return, "running")); - qobject_unref(rsp_return); -} - char *find_common_machine_version(const char *mtype, const char *var1, const char *var2) { @@ -509,23 +283,3 @@ bool probe_o_direct_support(const char *tmpfs) return true; } #endif - -/* - * Wait for a "MIGRATION" event. This is what Libvirt uses to track - * migration status changes. - */ -void migration_event_wait(QTestState *s, const char *target) -{ - QDict *response, *data; - const char *status; - bool found; - - do { - response = qtest_qmp_eventwait_ref(s, "MIGRATION"); - data = qdict_get_qdict(response, "data"); - g_assert(data); - status = qdict_get_str(data, "status"); - found = (strcmp(status, target) == 0); - qobject_unref(response); - } while (!found); -} diff --git a/tests/qtest/migration-helpers.h b/tests/qtest/migration-helpers.h index 72dba369fb..2cb1f78d9e 100644 --- a/tests/qtest/migration-helpers.h +++ b/tests/qtest/migration-helpers.h @@ -25,21 +25,6 @@ typedef struct QTestMigrationState { bool migrate_watch_for_events(QTestState *who, const char *name, QDict *event, void *opaque); -G_GNUC_PRINTF(5, 6) -void migrate_qmp(QTestState *who, QTestState *to, const char *uri, - const char *channels, const char *fmt, ...); - -G_GNUC_PRINTF(3, 4) -void migrate_incoming_qmp(QTestState *who, const char *uri, - const char *fmt, ...); - -G_GNUC_PRINTF(4, 5) -void migrate_qmp_fail(QTestState *who, const char *uri, - const char *channels, const char *fmt, ...); - -void migrate_set_capability(QTestState *who, const char *capability, - bool value); - QDict *migrate_query(QTestState *who); QDict *migrate_query_not_failed(QTestState *who); @@ -63,6 +48,7 @@ static inline bool probe_o_direct_support(const char *tmpfs) } #endif void migration_test_add(const char *path, void (*fn)(void)); -void migration_event_wait(QTestState *s, const char *target); +char *migrate_get_connect_uri(QTestState *who); +void migrate_set_ports(QTestState *to, QList *channel_list); #endif /* MIGRATION_HELPERS_H */ diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index 599adc422c..f55423467d 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -13,18 +13,18 @@ #include "qemu/osdep.h" #include "libqtest.h" -#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qlist.h" #include "qemu/module.h" #include "qemu/option.h" #include "qemu/range.h" #include "qemu/sockets.h" #include "chardev/char.h" #include "crypto/tlscredspsk.h" -#include "qapi/qmp/qlist.h" #include "ppc-util.h" #include "migration-helpers.h" #include "migration/bootfile.h" +#include "migration/migration-util.h" #ifdef CONFIG_GNUTLS # include "tests/unit/crypto-tls-psk-helpers.h" # ifdef CONFIG_TASN1 @@ -170,89 +170,6 @@ static void wait_for_serial(const char *side) } while (true); } -static void wait_for_stop(QTestState *who, QTestMigrationState *state) -{ - if (!state->stop_seen) { - qtest_qmp_eventwait(who, "STOP"); - } -} - -static void wait_for_resume(QTestState *who, QTestMigrationState *state) -{ - if (!state->resume_seen) { - qtest_qmp_eventwait(who, "RESUME"); - } -} - -static void wait_for_suspend(QTestState *who, QTestMigrationState *state) -{ - if (state->suspend_me && !state->suspend_seen) { - qtest_qmp_eventwait(who, "SUSPEND"); - } -} - -/* - * It's tricky to use qemu's migration event capability with qtest, - * events suddenly appearing confuse the qmp()/hmp() responses. - */ - -static int64_t read_ram_property_int(QTestState *who, const char *property) -{ - QDict *rsp_return, *rsp_ram; - int64_t result; - - rsp_return = migrate_query_not_failed(who); - if (!qdict_haskey(rsp_return, "ram")) { - /* Still in setup */ - result = 0; - } else { - rsp_ram = qdict_get_qdict(rsp_return, "ram"); - result = qdict_get_try_int(rsp_ram, property, 0); - } - qobject_unref(rsp_return); - return result; -} - -static int64_t read_migrate_property_int(QTestState *who, const char *property) -{ - QDict *rsp_return; - int64_t result; - - rsp_return = migrate_query_not_failed(who); - result = qdict_get_try_int(rsp_return, property, 0); - qobject_unref(rsp_return); - return result; -} - -static uint64_t get_migration_pass(QTestState *who) -{ - return read_ram_property_int(who, "dirty-sync-count"); -} - -static void read_blocktime(QTestState *who) -{ - QDict *rsp_return; - - rsp_return = migrate_query_not_failed(who); - g_assert(qdict_haskey(rsp_return, "postcopy-blocktime")); - qobject_unref(rsp_return); -} - -/* - * Wait for two changes in the migration pass count, but bail if we stop. - */ -static void wait_for_migration_pass(QTestState *who) -{ - uint64_t pass, prev_pass = 0, changes = 0; - - while (changes < 2 && !src_state.stop_seen && !src_state.suspend_seen) { - usleep(1000); - pass = get_migration_pass(who); - changes += (pass != prev_pass); - prev_pass = pass; - } -} - static void check_guests_ram(QTestState *who) { /* Our ASM test will have been incrementing one byte from each page from @@ -308,114 +225,6 @@ static void cleanup(const char *filename) unlink(path); } -static long long migrate_get_parameter_int(QTestState *who, - const char *parameter) -{ - QDict *rsp; - long long result; - - rsp = qtest_qmp_assert_success_ref( - who, "{ 'execute': 'query-migrate-parameters' }"); - result = qdict_get_int(rsp, parameter); - qobject_unref(rsp); - return result; -} - -static void migrate_check_parameter_int(QTestState *who, const char *parameter, - long long value) -{ - long long result; - - result = migrate_get_parameter_int(who, parameter); - g_assert_cmpint(result, ==, value); -} - -static void migrate_set_parameter_int(QTestState *who, const char *parameter, - long long value) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'migrate-set-parameters'," - "'arguments': { %s: %lld } }", - parameter, value); - migrate_check_parameter_int(who, parameter, value); -} - -static char *migrate_get_parameter_str(QTestState *who, - const char *parameter) -{ - QDict *rsp; - char *result; - - rsp = qtest_qmp_assert_success_ref( - who, "{ 'execute': 'query-migrate-parameters' }"); - result = g_strdup(qdict_get_str(rsp, parameter)); - qobject_unref(rsp); - return result; -} - -static void migrate_check_parameter_str(QTestState *who, const char *parameter, - const char *value) -{ - g_autofree char *result = migrate_get_parameter_str(who, parameter); - g_assert_cmpstr(result, ==, value); -} - -static void migrate_set_parameter_str(QTestState *who, const char *parameter, - const char *value) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'migrate-set-parameters'," - "'arguments': { %s: %s } }", - parameter, value); - migrate_check_parameter_str(who, parameter, value); -} - -static long long migrate_get_parameter_bool(QTestState *who, - const char *parameter) -{ - QDict *rsp; - int result; - - rsp = qtest_qmp_assert_success_ref( - who, "{ 'execute': 'query-migrate-parameters' }"); - result = qdict_get_bool(rsp, parameter); - qobject_unref(rsp); - return !!result; -} - -static void migrate_check_parameter_bool(QTestState *who, const char *parameter, - int value) -{ - int result; - - result = migrate_get_parameter_bool(who, parameter); - g_assert_cmpint(result, ==, value); -} - -static void migrate_set_parameter_bool(QTestState *who, const char *parameter, - int value) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'migrate-set-parameters'," - "'arguments': { %s: %i } }", - parameter, value); - migrate_check_parameter_bool(who, parameter, value); -} - -static void migrate_ensure_non_converge(QTestState *who) -{ - /* Can't converge with 1ms downtime + 3 mbs bandwidth limit */ - migrate_set_parameter_int(who, "max-bandwidth", 3 * 1000 * 1000); - migrate_set_parameter_int(who, "downtime-limit", 1); -} - -static void migrate_ensure_converge(QTestState *who) -{ - /* Should converge with 30s downtime + 1 gbs bandwidth limit */ - migrate_set_parameter_int(who, "max-bandwidth", 1 * 1000 * 1000 * 1000); - migrate_set_parameter_int(who, "downtime-limit", 30 * 1000); -} - /* * Our goal is to ensure that we run a single full migration * iteration, and also dirty memory, ensuring that at least @@ -506,42 +315,6 @@ static void migrate_wait_for_dirty_mem(QTestState *from, } while (qtest_readb(from, watch_address) == watch_byte); } - -static void migrate_pause(QTestState *who) -{ - qtest_qmp_assert_success(who, "{ 'execute': 'migrate-pause' }"); -} - -static void migrate_continue(QTestState *who, const char *state) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'migrate-continue'," - " 'arguments': { 'state': %s } }", - state); -} - -static void migrate_recover(QTestState *who, const char *uri) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'migrate-recover', " - " 'id': 'recover-cmd', " - " 'arguments': { 'uri': %s } }", - uri); -} - -static void migrate_cancel(QTestState *who) -{ - qtest_qmp_assert_success(who, "{ 'execute': 'migrate_cancel' }"); -} - -static void migrate_postcopy_start(QTestState *from, QTestState *to) -{ - qtest_qmp_assert_success(from, "{ 'execute': 'migrate-start-postcopy' }"); - - wait_for_stop(from, &src_state); - qtest_qmp_eventwait(to, "RESUME"); -} - typedef struct { /* * QTEST_LOG=1 may override this. When QTEST_LOG=1, we always dump errors @@ -1277,7 +1050,7 @@ static void test_postcopy_common(MigrateCommon *args) if (migrate_postcopy_prepare(&from, &to, args)) { return; } - migrate_postcopy_start(from, to); + migrate_postcopy_start(from, to, &src_state); migrate_postcopy_complete(from, to, args); } @@ -1464,7 +1237,7 @@ static void test_postcopy_recovery_common(MigrateCommon *args) migrate_set_parameter_int(from, "max-postcopy-bandwidth", 4096); /* Now we start the postcopy */ - migrate_postcopy_start(from, to); + migrate_postcopy_start(from, to, &src_state); /* * Wait until postcopy is really started; we can only run the @@ -1704,7 +1477,7 @@ static void test_precopy_common(MigrateCommon *args) * for some dirty mem before switching to converge */ while (args->iterations > 1) { - wait_for_migration_pass(from); + wait_for_migration_pass(from, &src_state); args->iterations--; } migrate_wait_for_dirty_mem(from, to); diff --git a/tests/qtest/migration/migration-qmp.c b/tests/qtest/migration/migration-qmp.c new file mode 100644 index 0000000000..89e069e96b --- /dev/null +++ b/tests/qtest/migration/migration-qmp.c @@ -0,0 +1,485 @@ +/* + * QTest QMP helpers for migration + * + * Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates + * based on the vhost-user-test.c that is: + * Copyright (c) 2014 Virtual Open Systems Sarl. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "libqtest.h" +#include "migration-helpers.h" +#include "migration-util.h" +#include "qapi/error.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qjson.h" +#include "qapi/qmp/qlist.h" + +/* + * Number of seconds we wait when looking for migration + * status changes, to avoid test suite hanging forever + * when things go wrong. Needs to be higher enough to + * avoid false positives on loaded hosts. + */ +#define MIGRATION_STATUS_WAIT_TIMEOUT 120 + +/* + * Wait for a "MIGRATION" event. This is what Libvirt uses to track + * migration status changes. + */ +void migration_event_wait(QTestState *s, const char *target) +{ + QDict *response, *data; + const char *status; + bool found; + + do { + response = qtest_qmp_eventwait_ref(s, "MIGRATION"); + data = qdict_get_qdict(response, "data"); + g_assert(data); + status = qdict_get_str(data, "status"); + found = (strcmp(status, target) == 0); + qobject_unref(response); + } while (!found); +} + +void migrate_qmp_fail(QTestState *who, const char *uri, + const char *channels, const char *fmt, ...) +{ + va_list ap; + QDict *args, *err; + + va_start(ap, fmt); + args = qdict_from_vjsonf_nofail(fmt, ap); + va_end(ap); + + g_assert(!qdict_haskey(args, "uri")); + if (uri) { + qdict_put_str(args, "uri", uri); + } + + g_assert(!qdict_haskey(args, "channels")); + if (channels) { + QObject *channels_obj = qobject_from_json(channels, &error_abort); + qdict_put_obj(args, "channels", channels_obj); + } + + err = qtest_qmp_assert_failure_ref( + who, "{ 'execute': 'migrate', 'arguments': %p}", args); + + g_assert(qdict_haskey(err, "desc")); + + qobject_unref(err); +} + +/* + * Send QMP command "migrate". + * Arguments are built from @fmt... (formatted like + * qobject_from_jsonf_nofail()) with "uri": @uri spliced in. + */ +void migrate_qmp(QTestState *who, QTestState *to, const char *uri, + const char *channels, const char *fmt, ...) +{ + va_list ap; + QDict *args; + g_autofree char *connect_uri = NULL; + + va_start(ap, fmt); + args = qdict_from_vjsonf_nofail(fmt, ap); + va_end(ap); + + g_assert(!qdict_haskey(args, "uri")); + if (uri) { + qdict_put_str(args, "uri", uri); + } else if (!channels) { + connect_uri = migrate_get_connect_uri(to); + qdict_put_str(args, "uri", connect_uri); + } + + g_assert(!qdict_haskey(args, "channels")); + if (channels) { + QObject *channels_obj = qobject_from_json(channels, &error_abort); + QList *channel_list = qobject_to(QList, channels_obj); + migrate_set_ports(to, channel_list); + qdict_put_obj(args, "channels", channels_obj); + } + + qtest_qmp_assert_success(who, + "{ 'execute': 'migrate', 'arguments': %p}", args); +} + +void migrate_set_capability(QTestState *who, const char *capability, + bool value) +{ + qtest_qmp_assert_success(who, + "{ 'execute': 'migrate-set-capabilities'," + "'arguments': { " + "'capabilities': [ { " + "'capability': %s, 'state': %i } ] } }", + capability, value); +} + +void migrate_incoming_qmp(QTestState *to, const char *uri, const char *fmt, ...) +{ + va_list ap; + QDict *args, *rsp; + + va_start(ap, fmt); + args = qdict_from_vjsonf_nofail(fmt, ap); + va_end(ap); + + g_assert(!qdict_haskey(args, "uri")); + qdict_put_str(args, "uri", uri); + + /* This function relies on the event to work, make sure it's enabled */ + migrate_set_capability(to, "events", true); + + rsp = qtest_qmp(to, "{ 'execute': 'migrate-incoming', 'arguments': %p}", + args); + + if (!qdict_haskey(rsp, "return")) { + g_autoptr(GString) s = qobject_to_json_pretty(QOBJECT(rsp), true); + g_test_message("%s", s->str); + } + + g_assert(qdict_haskey(rsp, "return")); + qobject_unref(rsp); + + migration_event_wait(to, "setup"); +} + +static bool check_migration_status(QTestState *who, const char *goal, + const char **ungoals) +{ + bool ready; + char *current_status; + const char **ungoal; + + current_status = migrate_query_status(who); + ready = strcmp(current_status, goal) == 0; + if (!ungoals) { + g_assert_cmpstr(current_status, !=, "failed"); + /* + * If looking for a state other than completed, + * completion of migration would cause the test to + * hang. + */ + if (strcmp(goal, "completed") != 0) { + g_assert_cmpstr(current_status, !=, "completed"); + } + } else { + for (ungoal = ungoals; *ungoal; ungoal++) { + g_assert_cmpstr(current_status, !=, *ungoal); + } + } + g_free(current_status); + return ready; +} + +void wait_for_migration_status(QTestState *who, + const char *goal, const char **ungoals) +{ + g_test_timer_start(); + while (!check_migration_status(who, goal, ungoals)) { + usleep(1000); + + g_assert(g_test_timer_elapsed() < MIGRATION_STATUS_WAIT_TIMEOUT); + } +} + +void wait_for_migration_complete(QTestState *who) +{ + wait_for_migration_status(who, "completed", NULL); +} + +void wait_for_migration_fail(QTestState *from, bool allow_active) +{ + g_test_timer_start(); + QDict *rsp_return; + char *status; + bool failed; + + do { + status = migrate_query_status(from); + bool result = !strcmp(status, "setup") || !strcmp(status, "failed") || + (allow_active && !strcmp(status, "active")); + if (!result) { + fprintf(stderr, "%s: unexpected status status=%s allow_active=%d\n", + __func__, status, allow_active); + } + g_assert(result); + failed = !strcmp(status, "failed"); + g_free(status); + + g_assert(g_test_timer_elapsed() < MIGRATION_STATUS_WAIT_TIMEOUT); + } while (!failed); + + /* Is the machine currently running? */ + rsp_return = qtest_qmp_assert_success_ref(from, + "{ 'execute': 'query-status' }"); + g_assert(qdict_haskey(rsp_return, "running")); + g_assert(qdict_get_bool(rsp_return, "running")); + qobject_unref(rsp_return); +} + +void wait_for_stop(QTestState *who, QTestMigrationState *state) +{ + if (!state->stop_seen) { + qtest_qmp_eventwait(who, "STOP"); + } +} + +void wait_for_resume(QTestState *who, QTestMigrationState *state) +{ + if (!state->resume_seen) { + qtest_qmp_eventwait(who, "RESUME"); + } +} + +void wait_for_suspend(QTestState *who, QTestMigrationState *state) +{ + if (state->suspend_me && !state->suspend_seen) { + qtest_qmp_eventwait(who, "SUSPEND"); + } +} + +/* + * Note: caller is responsible to free the returned object via + * qobject_unref() after use + */ +QDict *migrate_query(QTestState *who) +{ + return qtest_qmp_assert_success_ref(who, "{ 'execute': 'query-migrate' }"); +} + +QDict *migrate_query_not_failed(QTestState *who) +{ + const char *status; + QDict *rsp = migrate_query(who); + status = qdict_get_str(rsp, "status"); + if (g_str_equal(status, "failed")) { + g_printerr("query-migrate shows failed migration: %s\n", + qdict_get_str(rsp, "error-desc")); + } + g_assert(!g_str_equal(status, "failed")); + return rsp; +} + +/* + * Note: caller is responsible to free the returned object via + * g_free() after use + */ +gchar *migrate_query_status(QTestState *who) +{ + QDict *rsp_return = migrate_query(who); + gchar *status = g_strdup(qdict_get_str(rsp_return, "status")); + + g_assert(status); + qobject_unref(rsp_return); + + return status; +} + +int64_t read_ram_property_int(QTestState *who, const char *property) +{ + QDict *rsp_return, *rsp_ram; + int64_t result; + + rsp_return = migrate_query_not_failed(who); + if (!qdict_haskey(rsp_return, "ram")) { + /* Still in setup */ + result = 0; + } else { + rsp_ram = qdict_get_qdict(rsp_return, "ram"); + result = qdict_get_try_int(rsp_ram, property, 0); + } + qobject_unref(rsp_return); + return result; +} + +int64_t read_migrate_property_int(QTestState *who, const char *property) +{ + QDict *rsp_return; + int64_t result; + + rsp_return = migrate_query_not_failed(who); + result = qdict_get_try_int(rsp_return, property, 0); + qobject_unref(rsp_return); + return result; +} + +uint64_t get_migration_pass(QTestState *who) +{ + return read_ram_property_int(who, "dirty-sync-count"); +} + +void read_blocktime(QTestState *who) +{ + QDict *rsp_return; + + rsp_return = migrate_query_not_failed(who); + g_assert(qdict_haskey(rsp_return, "postcopy-blocktime")); + qobject_unref(rsp_return); +} + +/* + * Wait for two changes in the migration pass count, but bail if we stop. + */ +void wait_for_migration_pass(QTestState *who, QTestMigrationState *src_state) +{ + uint64_t pass, prev_pass = 0, changes = 0; + + while (changes < 2 && !src_state->stop_seen && !src_state->suspend_seen) { + usleep(1000); + pass = get_migration_pass(who); + changes += (pass != prev_pass); + prev_pass = pass; + } +} + +static long long migrate_get_parameter_int(QTestState *who, + const char *parameter) +{ + QDict *rsp; + long long result; + + rsp = qtest_qmp_assert_success_ref( + who, "{ 'execute': 'query-migrate-parameters' }"); + result = qdict_get_int(rsp, parameter); + qobject_unref(rsp); + return result; +} + +static void migrate_check_parameter_int(QTestState *who, const char *parameter, + long long value) +{ + long long result; + + result = migrate_get_parameter_int(who, parameter); + g_assert_cmpint(result, ==, value); +} + +void migrate_set_parameter_int(QTestState *who, const char *parameter, + long long value) +{ + qtest_qmp_assert_success(who, + "{ 'execute': 'migrate-set-parameters'," + "'arguments': { %s: %lld } }", + parameter, value); + migrate_check_parameter_int(who, parameter, value); +} + +static char *migrate_get_parameter_str(QTestState *who, const char *parameter) +{ + QDict *rsp; + char *result; + + rsp = qtest_qmp_assert_success_ref( + who, "{ 'execute': 'query-migrate-parameters' }"); + result = g_strdup(qdict_get_str(rsp, parameter)); + qobject_unref(rsp); + return result; +} + +static void migrate_check_parameter_str(QTestState *who, const char *parameter, + const char *value) +{ + g_autofree char *result = migrate_get_parameter_str(who, parameter); + g_assert_cmpstr(result, ==, value); +} + +void migrate_set_parameter_str(QTestState *who, const char *parameter, + const char *value) +{ + qtest_qmp_assert_success(who, + "{ 'execute': 'migrate-set-parameters'," + "'arguments': { %s: %s } }", + parameter, value); + migrate_check_parameter_str(who, parameter, value); +} + +static long long migrate_get_parameter_bool(QTestState *who, + const char *parameter) +{ + QDict *rsp; + int result; + + rsp = qtest_qmp_assert_success_ref( + who, "{ 'execute': 'query-migrate-parameters' }"); + result = qdict_get_bool(rsp, parameter); + qobject_unref(rsp); + return !!result; +} + +static void migrate_check_parameter_bool(QTestState *who, const char *parameter, + int value) +{ + int result; + + result = migrate_get_parameter_bool(who, parameter); + g_assert_cmpint(result, ==, value); +} + +void migrate_set_parameter_bool(QTestState *who, const char *parameter, + int value) +{ + qtest_qmp_assert_success(who, + "{ 'execute': 'migrate-set-parameters'," + "'arguments': { %s: %i } }", + parameter, value); + migrate_check_parameter_bool(who, parameter, value); +} + +void migrate_ensure_non_converge(QTestState *who) +{ + /* Can't converge with 1ms downtime + 3 mbs bandwidth limit */ + migrate_set_parameter_int(who, "max-bandwidth", 3 * 1000 * 1000); + migrate_set_parameter_int(who, "downtime-limit", 1); +} + +void migrate_ensure_converge(QTestState *who) +{ + /* Should converge with 30s downtime + 1 gbs bandwidth limit */ + migrate_set_parameter_int(who, "max-bandwidth", 1 * 1000 * 1000 * 1000); + migrate_set_parameter_int(who, "downtime-limit", 30 * 1000); +} + +void migrate_pause(QTestState *who) +{ + qtest_qmp_assert_success(who, "{ 'execute': 'migrate-pause' }"); +} + +void migrate_continue(QTestState *who, const char *state) +{ + qtest_qmp_assert_success(who, + "{ 'execute': 'migrate-continue'," + " 'arguments': { 'state': %s } }", + state); +} + +void migrate_recover(QTestState *who, const char *uri) +{ + qtest_qmp_assert_success(who, + "{ 'execute': 'migrate-recover', " + " 'id': 'recover-cmd', " + " 'arguments': { 'uri': %s } }", + uri); +} + +void migrate_cancel(QTestState *who) +{ + qtest_qmp_assert_success(who, "{ 'execute': 'migrate_cancel' }"); +} + +void migrate_postcopy_start(QTestState *from, QTestState *to, + QTestMigrationState *src_state) +{ + qtest_qmp_assert_success(from, "{ 'execute': 'migrate-start-postcopy' }"); + + wait_for_stop(from, src_state); + qtest_qmp_eventwait(to, "RESUME"); +} diff --git a/tests/qtest/migration/migration-util.h b/tests/qtest/migration/migration-util.h new file mode 100644 index 0000000000..e73fa5a70c --- /dev/null +++ b/tests/qtest/migration/migration-util.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef MIGRATION_UTIL_H +#define MIGRATION_UTIL_H + +/* migration-qmp.c */ +G_GNUC_PRINTF(4, 5) +void migrate_qmp_fail(QTestState *who, const char *uri, + const char *channels, const char *fmt, ...); + +G_GNUC_PRINTF(5, 6) +void migrate_qmp(QTestState *who, QTestState *to, const char *uri, + const char *channels, const char *fmt, ...); + +G_GNUC_PRINTF(3, 4) +void migrate_incoming_qmp(QTestState *who, const char *uri, + const char *fmt, ...); + +void migration_event_wait(QTestState *s, const char *target); +void migrate_set_capability(QTestState *who, const char *capability, + bool value); +int64_t read_ram_property_int(QTestState *who, const char *property); +void migrate_set_parameter_int(QTestState *who, const char *parameter, + long long value); +void wait_for_stop(QTestState *who, QTestMigrationState *state); +void wait_for_resume(QTestState *who, QTestMigrationState *state); +void wait_for_suspend(QTestState *who, QTestMigrationState *state); +gchar *migrate_query_status(QTestState *who); +int64_t read_migrate_property_int(QTestState *who, const char *property); +uint64_t get_migration_pass(QTestState *who); +void read_blocktime(QTestState *who); +void wait_for_migration_pass(QTestState *who, QTestMigrationState *src_state); +void migrate_set_parameter_str(QTestState *who, const char *parameter, + const char *value); +void migrate_set_parameter_bool(QTestState *who, const char *parameter, + int value); +void migrate_ensure_non_converge(QTestState *who); +void migrate_ensure_converge(QTestState *who); +void migrate_pause(QTestState *who); +void migrate_continue(QTestState *who, const char *state); +void migrate_recover(QTestState *who, const char *uri); +void migrate_cancel(QTestState *who); +void migrate_postcopy_start(QTestState *from, QTestState *to, + QTestMigrationState *src_state); + +#endif /* MIGRATION_UTIL_H */ diff --git a/tests/qtest/virtio-net-failover.c b/tests/qtest/virtio-net-failover.c index 73dfabc272..a1c2c70c3a 100644 --- a/tests/qtest/virtio-net-failover.c +++ b/tests/qtest/virtio-net-failover.c @@ -12,6 +12,7 @@ #include "libqos/pci.h" #include "libqos/pci-pc.h" #include "migration-helpers.h" +#include "migration/migration-util.h" #include "qapi/qmp/qdict.h" #include "qapi/qmp/qlist.h" #include "qapi/qmp/qjson.h"