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gwGzglt6Yh7F7hYiCdHlsiUM/thChQNR89LbpmhFUJQc9eiWdYTonlbOMmrZl7PDv XYmfKNbxSkT6N/Y2stxd1DzpZ/O1h5ACnkgF9c5Qn3oOL92/EBwJsZL2ZNX9/aNyG butvIYNnp5kfFw6jU5zstOBnb6IG6vTi6kd7YI9yVFSW5CEuwUXYZaXNOi9wkWD3R 08tAbwPLdbiFFt05BIhh9H+6z4esHa11OinqbMwuAE/HUNfZSSAepL6/YeJ7kYKOt w8RpIJT7blcg+cmScA== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 From: Lukas Straub Date: Wed, 18 Feb 2026 22:29:33 +0100 Subject: [PATCH v9 13/19] migration-test: Add COLO migration unit test MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260218-colo_unit_test_multifd-v9-13-d8dbdb0ca6f6@web.de> References: <20260218-colo_unit_test_multifd-v9-0-d8dbdb0ca6f6@web.de> In-Reply-To: <20260218-colo_unit_test_multifd-v9-0-d8dbdb0ca6f6@web.de> To: qemu-devel@nongnu.org Cc: Peter Xu , Fabiano Rosas , Laurent Vivier , Paolo Bonzini , Zhang Chen , Hailiang Zhang , Markus Armbruster , Li Zhijian , "Dr. David Alan Gilbert" , Lukas Straub X-Mailer: b4 0.14.2 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iuezjyWZrleFynH1rG9nYomg3OV444GYp0fcBvoz1bK+34x0QWw== Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=212.227.15.4; envelope-from=lukasstraub2@web.de; helo=mout.web.de X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 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, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity lukasstraub2@web.de) X-ZM-MESSAGEID: 1771450310537154100 Add a COLO migration test for COLO migration and failover. Reviewed-by: Fabiano Rosas Tested-by: Fabiano Rosas Reviewed-by: Peter Xu Signed-off-by: Lukas Straub --- MAINTAINERS | 1 + tests/qtest/meson.build | 7 +- tests/qtest/migration-test.c | 1 + tests/qtest/migration/colo-tests.c | 198 +++++++++++++++++++++++++++++++++= ++++ tests/qtest/migration/framework.h | 5 + 5 files changed, 211 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 5519ea4e163229a9bbc06318a0ee06d88ba6a8a1..a587a9233ac556a420f8784c4e3= 217e5c5b99f34 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3871,6 +3871,7 @@ F: migration/colo* F: migration/multifd-colo.* F: include/migration/colo.h F: include/migration/failover.h +F: tests/qtest/migration/colo-tests.c F: docs/COLO-FT.txt =20 COLO Proxy diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 25fdbc798010b19e8ec9b6ab55e02d3fb5741398..6a46e2a767de12d978d910ddb6d= e175bce9810b8 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -374,6 +374,11 @@ if gnutls.found() endif endif =20 +migration_colo_files =3D [] +if get_option('replication').allowed() + migration_colo_files =3D [files('migration/colo-tests.c')] +endif + qtests =3D { 'aspeed_hace-test': files('aspeed-hace-utils.c', 'aspeed_hace-test.c'), 'aspeed_smc-test': files('aspeed-smc-utils.c', 'aspeed_smc-test.c'), @@ -385,7 +390,7 @@ qtests =3D { 'migration/migration-util.c') + dbus_vmstate1, 'erst-test': files('erst-test.c'), 'ivshmem-test': [rt, '../../contrib/ivshmem-server/ivshmem-server.c'], - 'migration-test': test_migration_files + migration_tls_files, + 'migration-test': test_migration_files + migration_tls_files + migration= _colo_files, 'pxe-test': files('boot-sector.c'), 'pnv-xive2-test': files('pnv-xive2-common.c', 'pnv-xive2-flush-sync.c', 'pnv-xive2-nvpg_bar.c'), diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index 08936871741535c926eeac40a7d7c3f461c72fd0..e582f05c7dc2673dbd05a936df8= feb6c964b5bbc 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -55,6 +55,7 @@ int main(int argc, char **argv) migration_test_add_precopy(env); migration_test_add_cpr(env); migration_test_add_misc(env); + migration_test_add_colo(env); =20 ret =3D g_test_run(); =20 diff --git a/tests/qtest/migration/colo-tests.c b/tests/qtest/migration/col= o-tests.c new file mode 100644 index 0000000000000000000000000000000000000000..598a1d3821ed0a9031873270202= 7cebad47352fd --- /dev/null +++ b/tests/qtest/migration/colo-tests.c @@ -0,0 +1,198 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * + * QTest testcases for COLO migration + * + * Copyright (c) 2025 Lukas Straub + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "libqtest.h" +#include "migration/framework.h" +#include "migration/migration-qmp.h" +#include "migration/migration-util.h" +#include "qemu/module.h" + +static int test_colo_common(MigrateCommon *args, + bool failover_during_checkpoint, + bool primary_failover) +{ + QTestState *from, *to; + void *data_hook =3D NULL; + + /* + * For the COLO test, both VMs will run in parallel. Thus both VMs wan= t to + * open the image read/write at the same time. Using read-only=3Don is= not + * possible here, because ide-hd does not support read-only backing im= age. + * + * So use -snapshot, where each qemu instance creates its own writable + * snapshot internally while leaving the real image read-only. + */ + args->start.opts_source =3D "-snapshot"; + args->start.opts_target =3D "-snapshot"; + + /* + * COLO migration code logs many errors when the migration socket + * is shut down, these are expected so we hide them here. + */ + args->start.hide_stderr =3D true; + + /* + * Test with yank with out of band capability since that is how it is + * used in production. + */ + args->start.oob =3D true; + args->start.caps[MIGRATION_CAPABILITY_X_COLO] =3D true; + + if (migrate_start(&from, &to, args->listen_uri, &args->start)) { + return -1; + } + + migrate_set_parameter_int(from, "x-checkpoint-delay", 300); + + if (args->start_hook) { + data_hook =3D args->start_hook(from, to); + } + + migrate_ensure_converge(from); + wait_for_serial("src_serial"); + + migrate_qmp(from, to, args->connect_uri, NULL, "{}"); + + wait_for_migration_status(from, "colo", NULL); + wait_for_resume(to, get_dst()); + + wait_for_serial("src_serial"); + wait_for_serial("dest_serial"); + + /* wait for 3 checkpoints */ + for (int i =3D 0; i < 3; i++) { + qtest_qmp_eventwait(to, "RESUME"); + wait_for_serial("src_serial"); + wait_for_serial("dest_serial"); + } + + if (failover_during_checkpoint) { + qtest_qmp_eventwait(to, "STOP"); + } + if (primary_failover) { + qtest_qmp_assert_success(from, "{'exec-oob': 'yank', 'id': 'yank-c= md', " + "'arguments': {'instances':" + "[{'type': 'migration'}]}}= "); + qtest_qmp_assert_success(from, "{'execute': 'x-colo-lost-heartbeat= '}"); + wait_for_serial("src_serial"); + } else { + qtest_qmp_assert_success(to, "{'exec-oob': 'yank', 'id': 'yank-cmd= ', " + "'arguments': {'instances':" + "[{'type': 'migration'}]}}"); + qtest_qmp_assert_success(to, "{'execute': 'x-colo-lost-heartbeat'}= "); + wait_for_serial("dest_serial"); + } + + if (args->end_hook) { + args->end_hook(from, to, data_hook); + } + + migrate_end(from, to, !primary_failover); + + return 0; +} + +static void test_colo_plain_common(MigrateCommon *args, + bool failover_during_checkpoint, + bool primary_failover) +{ + args->listen_uri =3D "tcp:127.0.0.1:0"; + test_colo_common(args, failover_during_checkpoint, primary_failover); +} + +static void *hook_start_multifd(QTestState *from, QTestState *to) +{ + return migrate_hook_start_precopy_tcp_multifd_common(from, to, "none"); +} + +static void test_colo_multifd_common(MigrateCommon *args, + bool failover_during_checkpoint, + bool primary_failover) +{ + args->listen_uri =3D "defer"; + args->start_hook =3D hook_start_multifd; + args->start.caps[MIGRATION_CAPABILITY_MULTIFD] =3D true; + test_colo_common(args, failover_during_checkpoint, primary_failover); +} + +static void test_colo_plain_primary_failover(char *name, MigrateCommon *ar= gs) +{ + test_colo_plain_common(args, false, true); +} + +static void test_colo_plain_secondary_failover(char *name, MigrateCommon *= args) +{ + test_colo_plain_common(args, false, false); +} + +static void test_colo_multifd_primary_failover(char *name, MigrateCommon *= args) +{ + test_colo_multifd_common(args, false, true); +} + +static void test_colo_multifd_secondary_failover(char *name, + MigrateCommon *args) +{ + test_colo_multifd_common(args, false, false); +} + +static void test_colo_plain_primary_failover_checkpoint(char *name, + MigrateCommon *arg= s) +{ + test_colo_plain_common(args, true, true); +} + +static void test_colo_plain_secondary_failover_checkpoint(char *name, + MigrateCommon *a= rgs) +{ + test_colo_plain_common(args, true, false); +} + +static void test_colo_multifd_primary_failover_checkpoint(char *name, + MigrateCommon *a= rgs) +{ + test_colo_multifd_common(args, true, true); +} + +static void test_colo_multifd_secondary_failover_checkpoint(char *name, + MigrateCommon = *args) +{ + test_colo_multifd_common(args, true, false); +} + +void migration_test_add_colo(MigrationTestEnv *env) +{ + if (!env->full_set) { + return; + } + + migration_test_add("/migration/colo/plain/primary_failover", + test_colo_plain_primary_failover); + migration_test_add("/migration/colo/plain/secondary_failover", + test_colo_plain_secondary_failover); + + migration_test_add("/migration/colo/multifd/primary_failover", + test_colo_multifd_primary_failover); + migration_test_add("/migration/colo/multifd/secondary_failover", + test_colo_multifd_secondary_failover); + + migration_test_add("/migration/colo/plain/primary_failover_checkpoint", + test_colo_plain_primary_failover_checkpoint); + migration_test_add("/migration/colo/plain/secondary_failover_checkpoin= t", + test_colo_plain_secondary_failover_checkpoint); + + migration_test_add("/migration/colo/multifd/primary_failover_checkpoin= t", + test_colo_multifd_primary_failover_checkpoint); + migration_test_add("/migration/colo/multifd/secondary_failover_checkpo= int", + test_colo_multifd_secondary_failover_checkpoint); +} diff --git a/tests/qtest/migration/framework.h b/tests/qtest/migration/fram= ework.h index 40984d04930da2d181326d9f6a742bde49018103..80eef758932ce9c301ed6c0f638= 3d18756144870 100644 --- a/tests/qtest/migration/framework.h +++ b/tests/qtest/migration/framework.h @@ -264,5 +264,10 @@ void migration_test_add_file(MigrationTestEnv *env); void migration_test_add_precopy(MigrationTestEnv *env); void migration_test_add_cpr(MigrationTestEnv *env); void migration_test_add_misc(MigrationTestEnv *env); +#ifdef CONFIG_REPLICATION +void migration_test_add_colo(MigrationTestEnv *env); +#else +static inline void migration_test_add_colo(MigrationTestEnv *env) {}; +#endif =20 #endif /* TEST_FRAMEWORK_H */ --=20 2.39.5