diff options
Diffstat (limited to 'tests/qtest/migration-test.c')
| -rw-r--r-- | tests/qtest/migration-test.c | 4031 |
1 files changed, 11 insertions, 4020 deletions
diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index 74d3000198..5cad5060b3 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -11,4040 +11,31 @@ */ #include "qemu/osdep.h" - -#include "libqtest.h" -#include "qapi/qmp/qdict.h" +#include "migration/framework.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 "tests/migration/migration-test.h" -#ifdef CONFIG_GNUTLS -# include "tests/unit/crypto-tls-psk-helpers.h" -# ifdef CONFIG_TASN1 -# include "tests/unit/crypto-tls-x509-helpers.h" -# endif /* CONFIG_TASN1 */ -#endif /* CONFIG_GNUTLS */ - -/* For dirty ring test; so far only x86_64 is supported */ -#if defined(__linux__) && defined(HOST_X86_64) -#include "linux/kvm.h" -#endif - -unsigned start_address; -unsigned end_address; -static bool uffd_feature_thread_id; -static QTestMigrationState src_state; -static QTestMigrationState dst_state; - -/* - * An initial 3 MB offset is used as that corresponds - * to ~1 sec of data transfer with our bandwidth setting. - */ -#define MAGIC_OFFSET_BASE (3 * 1024 * 1024) -/* - * A further 1k is added to ensure we're not a multiple - * of TEST_MEM_PAGE_SIZE, thus avoid clash with writes - * from the migration guest workload. - */ -#define MAGIC_OFFSET_SHUFFLE 1024 -#define MAGIC_OFFSET (MAGIC_OFFSET_BASE + MAGIC_OFFSET_SHUFFLE) -#define MAGIC_MARKER 0xFEED12345678CAFEULL - -/* - * Dirtylimit stop working if dirty page rate error - * value less than DIRTYLIMIT_TOLERANCE_RANGE - */ -#define DIRTYLIMIT_TOLERANCE_RANGE 25 /* MB/s */ - -#define ANALYZE_SCRIPT "scripts/analyze-migration.py" - -#define QEMU_VM_FILE_MAGIC 0x5145564d -#define FILE_TEST_FILENAME "migfile" -#define FILE_TEST_OFFSET 0x1000 -#define FILE_TEST_MARKER 'X' -#define QEMU_ENV_SRC "QTEST_QEMU_BINARY_SRC" -#define QEMU_ENV_DST "QTEST_QEMU_BINARY_DST" - -typedef enum PostcopyRecoveryFailStage { - /* - * "no failure" must be 0 as it's the default. OTOH, real failure - * cases must be >0 to make sure they trigger by a "if" test. - */ - POSTCOPY_FAIL_NONE = 0, - POSTCOPY_FAIL_CHANNEL_ESTABLISH, - POSTCOPY_FAIL_RECOVERY, - POSTCOPY_FAIL_MAX -} PostcopyRecoveryFailStage; - -#if defined(__linux__) -#include <sys/syscall.h> -#include <sys/vfs.h> -#endif - -#if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD) -#include <sys/eventfd.h> -#include <sys/ioctl.h> -#include "qemu/userfaultfd.h" - -static bool ufd_version_check(void) -{ - struct uffdio_api api_struct; - uint64_t ioctl_mask; - - int ufd = uffd_open(O_CLOEXEC); - - if (ufd == -1) { - g_test_message("Skipping test: userfaultfd not available"); - return false; - } - - api_struct.api = UFFD_API; - api_struct.features = 0; - if (ioctl(ufd, UFFDIO_API, &api_struct)) { - g_test_message("Skipping test: UFFDIO_API failed"); - return false; - } - uffd_feature_thread_id = api_struct.features & UFFD_FEATURE_THREAD_ID; - - ioctl_mask = (1ULL << _UFFDIO_REGISTER | - 1ULL << _UFFDIO_UNREGISTER); - if ((api_struct.ioctls & ioctl_mask) != ioctl_mask) { - g_test_message("Skipping test: Missing userfault feature"); - return false; - } - - return true; -} - -#else -static bool ufd_version_check(void) -{ - g_test_message("Skipping test: Userfault not available (builtdtime)"); - return false; -} - -#endif - -static char *tmpfs; -static char *bootpath; - -/* The boot file modifies memory area in [start_address, end_address) - * repeatedly. It outputs a 'B' at a fixed rate while it's still running. - */ -#include "tests/migration/i386/a-b-bootblock.h" -#include "tests/migration/aarch64/a-b-kernel.h" -#include "tests/migration/ppc64/a-b-kernel.h" -#include "tests/migration/s390x/a-b-bios.h" - -static void bootfile_delete(void) -{ - if (!bootpath) { - return; - } - unlink(bootpath); - g_free(bootpath); - bootpath = NULL; -} - -static void bootfile_create(char *dir, bool suspend_me) -{ - const char *arch = qtest_get_arch(); - unsigned char *content; - size_t len; - - bootfile_delete(); - bootpath = g_strdup_printf("%s/bootsect", dir); - if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { - /* the assembled x86 boot sector should be exactly one sector large */ - g_assert(sizeof(x86_bootsect) == 512); - x86_bootsect[SYM_suspend_me - SYM_start] = suspend_me; - content = x86_bootsect; - len = sizeof(x86_bootsect); - } else if (g_str_equal(arch, "s390x")) { - content = s390x_elf; - len = sizeof(s390x_elf); - } else if (strcmp(arch, "ppc64") == 0) { - content = ppc64_kernel; - len = sizeof(ppc64_kernel); - } else if (strcmp(arch, "aarch64") == 0) { - content = aarch64_kernel; - len = sizeof(aarch64_kernel); - g_assert(sizeof(aarch64_kernel) <= ARM_TEST_MAX_KERNEL_SIZE); - } else { - g_assert_not_reached(); - } - - FILE *bootfile = fopen(bootpath, "wb"); - - g_assert_cmpint(fwrite(content, len, 1, bootfile), ==, 1); - fclose(bootfile); -} - -/* - * Wait for some output in the serial output file, - * we get an 'A' followed by an endless string of 'B's - * but on the destination we won't have the A (unless we enabled suspend/resume) - */ -static void wait_for_serial(const char *side) -{ - g_autofree char *serialpath = g_strdup_printf("%s/%s", tmpfs, side); - FILE *serialfile = fopen(serialpath, "r"); - - do { - int readvalue = fgetc(serialfile); - - switch (readvalue) { - case 'A': - /* Fine */ - break; - - case 'B': - /* It's alive! */ - fclose(serialfile); - return; - - case EOF: - fseek(serialfile, 0, SEEK_SET); - usleep(1000); - break; - - default: - fprintf(stderr, "Unexpected %d on %s serial\n", readvalue, side); - g_assert_not_reached(); - } - } 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 - * start_address to < end_address in order. This gives us a constraint - * that any page's byte should be equal or less than the previous pages - * byte (mod 256); and they should all be equal except for one transition - * at the point where we meet the incrementer. (We're running this with - * the guest stopped). - */ - unsigned address; - uint8_t first_byte; - uint8_t last_byte; - bool hit_edge = false; - int bad = 0; - - qtest_memread(who, start_address, &first_byte, 1); - last_byte = first_byte; - - for (address = start_address + TEST_MEM_PAGE_SIZE; address < end_address; - address += TEST_MEM_PAGE_SIZE) - { - uint8_t b; - qtest_memread(who, address, &b, 1); - if (b != last_byte) { - if (((b + 1) % 256) == last_byte && !hit_edge) { - /* This is OK, the guest stopped at the point of - * incrementing the previous page but didn't get - * to us yet. - */ - hit_edge = true; - last_byte = b; - } else { - bad++; - if (bad <= 10) { - fprintf(stderr, "Memory content inconsistency at %x" - " first_byte = %x last_byte = %x current = %x" - " hit_edge = %x\n", - address, first_byte, last_byte, b, hit_edge); - } - } - } - } - if (bad >= 10) { - fprintf(stderr, "and in another %d pages", bad - 10); - } - g_assert(bad == 0); -} - -static void cleanup(const char *filename) -{ - g_autofree char *path = g_strdup_printf("%s/%s", tmpfs, 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 - * one further iteration is required. - * - * We can't directly synchronize with the start of a migration - * so we have to apply some tricks monitoring memory that is - * transferred. - * - * Initially we set the migration bandwidth to an insanely - * low value, with tiny max downtime too. This basically - * guarantees migration will never complete. - * - * This will result in a test that is unacceptably slow though, - * so we can't let the entire migration pass run at this speed. - * Our intent is to let it run just long enough that we can - * prove data prior to the marker has been transferred *AND* - * also prove this transferred data is dirty again. - * - * Before migration starts, we write a 64-bit magic marker - * into a fixed location in the src VM RAM. - * - * Then watch dst memory until the marker appears. This is - * proof that start_address -> MAGIC_OFFSET_BASE has been - * transferred. - * - * Finally we go back to the source and read a byte just - * before the marker until we see it flip in value. This - * is proof that start_address -> MAGIC_OFFSET_BASE - * is now dirty again. - * - * IOW, we're guaranteed at least a 2nd migration pass - * at this point. - * - * We can now let migration run at full speed to finish - * the test - */ -static void migrate_prepare_for_dirty_mem(QTestState *from) -{ - /* - * The guest workflow iterates from start_address to - * end_address, writing 1 byte every TEST_MEM_PAGE_SIZE - * bytes. - * - * IOW, if we write to mem at a point which is NOT - * a multiple of TEST_MEM_PAGE_SIZE, our write won't - * conflict with the migration workflow. - * - * We put in a marker here, that we'll use to determine - * when the data has been transferred to the dst. - */ - qtest_writeq(from, start_address + MAGIC_OFFSET, MAGIC_MARKER); -} - -static void migrate_wait_for_dirty_mem(QTestState *from, - QTestState *to) -{ - uint64_t watch_address = start_address + MAGIC_OFFSET_BASE; - uint64_t marker_address = start_address + MAGIC_OFFSET; - uint8_t watch_byte; - - /* - * Wait for the MAGIC_MARKER to get transferred, as an - * indicator that a migration pass has made some known - * amount of progress. - */ - do { - usleep(1000 * 10); - } while (qtest_readq(to, marker_address) != MAGIC_MARKER); - - - /* If suspended, src only iterates once, and watch_byte may never change */ - if (src_state.suspend_me) { - return; - } - - /* - * Now ensure that already transferred bytes are - * dirty again from the guest workload. Note the - * guest byte value will wrap around and by chance - * match the original watch_byte. This is harmless - * as we'll eventually see a different value if we - * keep watching - */ - watch_byte = qtest_readb(from, watch_address); - do { - usleep(1000 * 10); - } 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 - * unconditionally, because it means the user would like to be verbose. - */ - bool hide_stderr; - bool use_shmem; - /* only launch the target process */ - bool only_target; - /* Use dirty ring if true; dirty logging otherwise */ - bool use_dirty_ring; - const char *opts_source; - const char *opts_target; - /* suspend the src before migrating to dest. */ - bool suspend_me; -} MigrateStart; - -/* - * A hook that runs after the src and dst QEMUs have been - * created, but before the migration is started. This can - * be used to set migration parameters and capabilities. - * - * Returns: NULL, or a pointer to opaque state to be - * later passed to the TestMigrateFinishHook - */ -typedef void * (*TestMigrateStartHook)(QTestState *from, - QTestState *to); - -/* - * A hook that runs after the migration has finished, - * regardless of whether it succeeded or failed, but - * before QEMU has terminated (unless it self-terminated - * due to migration error) - * - * @opaque is a pointer to state previously returned - * by the TestMigrateStartHook if any, or NULL. - */ -typedef void (*TestMigrateFinishHook)(QTestState *from, - QTestState *to, - void *opaque); - -typedef struct { - /* Optional: fine tune start parameters */ - MigrateStart start; - - /* Required: the URI for the dst QEMU to listen on */ - const char *listen_uri; - - /* - * Optional: the URI for the src QEMU to connect to - * If NULL, then it will query the dst QEMU for its actual - * listening address and use that as the connect address. - * This allows for dynamically picking a free TCP port. - */ - const char *connect_uri; - - /* - * Optional: JSON-formatted list of src QEMU URIs. If a port is - * defined as '0' in any QDict key a value of '0' will be - * automatically converted to the correct destination port. - */ - const char *connect_channels; - - /* Optional: callback to run at start to set migration parameters */ - TestMigrateStartHook start_hook; - /* Optional: callback to run at finish to cleanup */ - TestMigrateFinishHook finish_hook; - - /* - * Optional: normally we expect the migration process to complete. - * - * There can be a variety of reasons and stages in which failure - * can happen during tests. - * - * If a failure is expected to happen at time of establishing - * the connection, then MIG_TEST_FAIL will indicate that the dst - * QEMU is expected to stay running and accept future migration - * connections. - * - * If a failure is expected to happen while processing the - * migration stream, then MIG_TEST_FAIL_DEST_QUIT_ERR will indicate - * that the dst QEMU is expected to quit with non-zero exit status - */ - enum { - /* This test should succeed, the default */ - MIG_TEST_SUCCEED = 0, - /* This test should fail, dest qemu should keep alive */ - MIG_TEST_FAIL, - /* This test should fail, dest qemu should fail with abnormal status */ - MIG_TEST_FAIL_DEST_QUIT_ERR, - /* The QMP command for this migration should fail with an error */ - MIG_TEST_QMP_ERROR, - } result; - - /* - * Optional: set number of migration passes to wait for, if live==true. - * If zero, then merely wait for a few MB of dirty data - */ - unsigned int iterations; - - /* - * Optional: whether the guest CPUs should be running during a precopy - * migration test. We used to always run with live but it took much - * longer so we reduced live tests to only the ones that have solid - * reason to be tested live-only. For each of the new test cases for - * precopy please provide justifications to use live explicitly (please - * refer to existing ones with live=true), or use live=off by default. - */ - bool live; - - /* Postcopy specific fields */ - void *postcopy_data; - bool postcopy_preempt; - PostcopyRecoveryFailStage postcopy_recovery_fail_stage; -} MigrateCommon; - -static int test_migrate_start(QTestState **from, QTestState **to, - const char *uri, MigrateStart *args) -{ - g_autofree gchar *arch_source = NULL; - g_autofree gchar *arch_target = NULL; - /* options for source and target */ - g_autofree gchar *arch_opts = NULL; - g_autofree gchar *cmd_source = NULL; - g_autofree gchar *cmd_target = NULL; - const gchar *ignore_stderr; - g_autofree char *shmem_opts = NULL; - g_autofree char *shmem_path = NULL; - const char *kvm_opts = NULL; - const char *arch = qtest_get_arch(); - const char *memory_size; - const char *machine_alias, *machine_opts = ""; - g_autofree char *machine = NULL; - - if (args->use_shmem) { - if (!g_file_test("/dev/shm", G_FILE_TEST_IS_DIR)) { - g_test_skip("/dev/shm is not supported"); - return -1; - } - } - - dst_state = (QTestMigrationState) { }; - src_state = (QTestMigrationState) { }; - bootfile_create(tmpfs, args->suspend_me); - src_state.suspend_me = args->suspend_me; - - if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { - memory_size = "150M"; - - if (g_str_equal(arch, "i386")) { - machine_alias = "pc"; - } else { - machine_alias = "q35"; - } - arch_opts = g_strdup_printf( - "-drive if=none,id=d0,file=%s,format=raw " - "-device ide-hd,drive=d0,secs=1,cyls=1,heads=1", bootpath); - start_address = X86_TEST_MEM_START; - end_address = X86_TEST_MEM_END; - } else if (g_str_equal(arch, "s390x")) { - memory_size = "128M"; - machine_alias = "s390-ccw-virtio"; - arch_opts = g_strdup_printf("-bios %s", bootpath); - start_address = S390_TEST_MEM_START; - end_address = S390_TEST_MEM_END; - } else if (strcmp(arch, "ppc64") == 0) { - memory_size = "256M"; - start_address = PPC_TEST_MEM_START; - end_address = PPC_TEST_MEM_END; - machine_alias = "pseries"; - machine_opts = "vsmt=8"; - arch_opts = g_strdup_printf( - "-nodefaults -machine " PSERIES_DEFAULT_CAPABILITIES " " - "-bios %s", bootpath); - } else if (strcmp(arch, "aarch64") == 0) { - memory_size = "150M"; - machine_alias = "virt"; - machine_opts = "gic-version=3"; - arch_opts = g_strdup_printf("-cpu max -kernel %s", bootpath); - start_address = ARM_TEST_MEM_START; - end_address = ARM_TEST_MEM_END; - } else { - g_assert_not_reached(); - } - - if (!getenv("QTEST_LOG") && args->hide_stderr) { -#ifndef _WIN32 - ignore_stderr = "2>/dev/null"; -#else - /* - * On Windows the QEMU executable is created via CreateProcess() and - * IO redirection does not work, so don't bother adding IO redirection - * to the command line. - */ - ignore_stderr = ""; -#endif - } else { - ignore_stderr = ""; - } - - if (args->use_shmem) { - shmem_path = g_strdup_printf("/dev/shm/qemu-%d", getpid()); - shmem_opts = g_strdup_printf( - "-object memory-backend-file,id=mem0,size=%s" - ",mem-path=%s,share=on -numa node,memdev=mem0", - memory_size, shmem_path); - } - - if (args->use_dirty_ring) { - kvm_opts = ",dirty-ring-size=4096"; - } - - if (!qtest_has_machine(machine_alias)) { - g_autofree char *msg = g_strdup_printf("machine %s not supported", machine_alias); - g_test_skip(msg); - return -1; - } - - machine = resolve_machine_version(machine_alias, QEMU_ENV_SRC, - QEMU_ENV_DST); - - g_test_message("Using machine type: %s", machine); - - cmd_source = g_strdup_printf("-accel kvm%s -accel tcg " - "-machine %s,%s " - "-name source,debug-threads=on " - "-m %s " - "-serial file:%s/src_serial " - "%s %s %s %s %s", - kvm_opts ? kvm_opts : "", - machine, machine_opts, - memory_size, tmpfs, - arch_opts ? arch_opts : "", - arch_source ? arch_source : "", - shmem_opts ? shmem_opts : "", - args->opts_source ? args->opts_source : "", - ignore_stderr); - if (!args->only_target) { - *from = qtest_init_with_env(QEMU_ENV_SRC, cmd_source); - qtest_qmp_set_event_callback(*from, - migrate_watch_for_events, - &src_state); - } - - cmd_target = g_strdup_printf("-accel kvm%s -accel tcg " - "-machine %s,%s " - "-name target,debug-threads=on " - "-m %s " - "-serial file:%s/dest_serial " - "-incoming %s " - "%s %s %s %s %s", - kvm_opts ? kvm_opts : "", - machine, machine_opts, - memory_size, tmpfs, uri, - arch_opts ? arch_opts : "", - arch_target ? arch_target : "", - shmem_opts ? shmem_opts : "", - args->opts_target ? args->opts_target : "", - ignore_stderr); - *to = qtest_init_with_env(QEMU_ENV_DST, cmd_target); - qtest_qmp_set_event_callback(*to, - migrate_watch_for_events, - &dst_state); - - /* - * Remove shmem file immediately to avoid memory leak in test failed case. - * It's valid because QEMU has already opened this file - */ - if (args->use_shmem) { - unlink(shmem_path); - } - - /* - * Always enable migration events. Libvirt always uses it, let's try - * to mimic as closer as that. - */ - migrate_set_capability(*from, "events", true); - migrate_set_capability(*to, "events", true); - - return 0; -} - -static void test_migrate_end(QTestState *from, QTestState *to, bool test_dest) -{ - unsigned char dest_byte_a, dest_byte_b, dest_byte_c, dest_byte_d; - - qtest_quit(from); - - if (test_dest) { - qtest_memread(to, start_address, &dest_byte_a, 1); - - /* Destination still running, wait for a byte to change */ - do { - qtest_memread(to, start_address, &dest_byte_b, 1); - usleep(1000 * 10); - } while (dest_byte_a == dest_byte_b); - - qtest_qmp_assert_success(to, "{ 'execute' : 'stop'}"); - - /* With it stopped, check nothing changes */ - qtest_memread(to, start_address, &dest_byte_c, 1); - usleep(1000 * 200); - qtest_memread(to, start_address, &dest_byte_d, 1); - g_assert_cmpint(dest_byte_c, ==, dest_byte_d); - - check_guests_ram(to); - } - - qtest_quit(to); - - cleanup("migsocket"); - cleanup("src_serial"); - cleanup("dest_serial"); - cleanup(FILE_TEST_FILENAME); -} - -#ifdef CONFIG_GNUTLS -struct TestMigrateTLSPSKData { - char *workdir; - char *workdiralt; - char *pskfile; - char *pskfilealt; -}; - -static void * -test_migrate_tls_psk_start_common(QTestState *from, - QTestState *to, - bool mismatch) -{ - struct TestMigrateTLSPSKData *data = - g_new0(struct TestMigrateTLSPSKData, 1); - - data->workdir = g_strdup_printf("%s/tlscredspsk0", tmpfs); - data->pskfile = g_strdup_printf("%s/%s", data->workdir, - QCRYPTO_TLS_CREDS_PSKFILE); - g_mkdir_with_parents(data->workdir, 0700); - test_tls_psk_init(data->pskfile); - - if (mismatch) { - data->workdiralt = g_strdup_printf("%s/tlscredspskalt0", tmpfs); - data->pskfilealt = g_strdup_printf("%s/%s", data->workdiralt, - QCRYPTO_TLS_CREDS_PSKFILE); - g_mkdir_with_parents(data->workdiralt, 0700); - test_tls_psk_init_alt(data->pskfilealt); - } - - qtest_qmp_assert_success(from, - "{ 'execute': 'object-add'," - " 'arguments': { 'qom-type': 'tls-creds-psk'," - " 'id': 'tlscredspsk0'," - " 'endpoint': 'client'," - " 'dir': %s," - " 'username': 'qemu'} }", - data->workdir); - - qtest_qmp_assert_success(to, - "{ 'execute': 'object-add'," - " 'arguments': { 'qom-type': 'tls-creds-psk'," - " 'id': 'tlscredspsk0'," - " 'endpoint': 'server'," - " 'dir': %s } }", - mismatch ? data->workdiralt : data->workdir); - - migrate_set_parameter_str(from, "tls-creds", "tlscredspsk0"); - migrate_set_parameter_str(to, "tls-creds", "tlscredspsk0"); - - return data; -} - -static void * -test_migrate_tls_psk_start_match(QTestState *from, - QTestState *to) -{ - return test_migrate_tls_psk_start_common(from, to, false); -} - -static void * -test_migrate_tls_psk_start_mismatch(QTestState *from, - QTestState *to) -{ - return test_migrate_tls_psk_start_common(from, to, true); -} - -static void -test_migrate_tls_psk_finish(QTestState *from, - QTestState *to, - void *opaque) -{ - struct TestMigrateTLSPSKData *data = opaque; - - test_tls_psk_cleanup(data->pskfile); - if (data->pskfilealt) { - test_tls_psk_cleanup(data->pskfilealt); - } - rmdir(data->workdir); - if (data->workdiralt) { - rmdir(data->workdiralt); - } - - g_free(data->workdiralt); - g_free(data->pskfilealt); - g_free(data->workdir); - g_free(data->pskfile); - g_free(data); -} - -#ifdef CONFIG_TASN1 -typedef struct { - char *workdir; - char *keyfile; - char *cacert; - char *servercert; - char *serverkey; - char *clientcert; - char *clientkey; -} TestMigrateTLSX509Data; - -typedef struct { - bool verifyclient; - bool clientcert; - bool hostileclient; - bool authzclient; - const char *certhostname; - const char *certipaddr; -} TestMigrateTLSX509; - -static void * -test_migrate_tls_x509_start_common(QTestState *from, - QTestState *to, - TestMigrateTLSX509 *args) -{ - TestMigrateTLSX509Data *data = g_new0(TestMigrateTLSX509Data, 1); - - data->workdir = g_strdup_printf("%s/tlscredsx5090", tmpfs); - data->keyfile = g_strdup_printf("%s/key.pem", data->workdir); - - data->cacert = g_strdup_printf("%s/ca-cert.pem", data->workdir); - data->serverkey = g_strdup_printf("%s/server-key.pem", data->workdir); - data->servercert = g_strdup_printf("%s/server-cert.pem", data->workdir); - if (args->clientcert) { - data->clientkey = g_strdup_printf("%s/client-key.pem", data->workdir); - data->clientcert = g_strdup_printf("%s/client-cert.pem", data->workdir); - } - - g_mkdir_with_parents(data->workdir, 0700); - - test_tls_init(data->keyfile); -#ifndef _WIN32 - g_assert(link(data->keyfile, data->serverkey) == 0); -#else - g_assert(CreateHardLink(data->serverkey, data->keyfile, NULL) != 0); -#endif - if (args->clientcert) { -#ifndef _WIN32 - g_assert(link(data->keyfile, data->clientkey) == 0); -#else - g_assert(CreateHardLink(data->clientkey, data->keyfile, NULL) != 0); -#endif - } - - TLS_ROOT_REQ_SIMPLE(cacertreq, data->cacert); - if (args->clientcert) { - TLS_CERT_REQ_SIMPLE_CLIENT(servercertreq, cacertreq, - args->hostileclient ? - QCRYPTO_TLS_TEST_CLIENT_HOSTILE_NAME : - QCRYPTO_TLS_TEST_CLIENT_NAME, - data->clientcert); - test_tls_deinit_cert(&servercertreq); - } - - TLS_CERT_REQ_SIMPLE_SERVER(clientcertreq, cacertreq, - data->servercert, - args->certhostname, - args->certipaddr); - test_tls_deinit_cert(&clientcertreq); - test_tls_deinit_cert(&cacertreq); - - qtest_qmp_assert_success(from, - "{ 'execute': 'object-add'," - " 'arguments': { 'qom-type': 'tls-creds-x509'," - " 'id': 'tlscredsx509client0'," - " 'endpoint': 'client'," - " 'dir': %s," - " 'sanity-check': true," - " 'verify-peer': true} }", - data->workdir); - migrate_set_parameter_str(from, "tls-creds", "tlscredsx509client0"); - if (args->certhostname) { - migrate_set_parameter_str(from, "tls-hostname", args->certhostname); - } - - qtest_qmp_assert_success(to, - "{ 'execute': 'object-add'," - " 'arguments': { 'qom-type': 'tls-creds-x509'," - " 'id': 'tlscredsx509server0'," - " 'endpoint': 'server'," - " 'dir': %s," - " 'sanity-check': true," - " 'verify-peer': %i} }", - data->workdir, args->verifyclient); - migrate_set_parameter_str(to, "tls-creds", "tlscredsx509server0"); - - if (args->authzclient) { - qtest_qmp_assert_success(to, - "{ 'execute': 'object-add'," - " 'arguments': { 'qom-type': 'authz-simple'," - " 'id': 'tlsauthz0'," - " 'identity': %s} }", - "CN=" QCRYPTO_TLS_TEST_CLIENT_NAME); - migrate_set_parameter_str(to, "tls-authz", "tlsauthz0"); - } - - return data; -} - -/* - * The normal case: match server's cert hostname against - * whatever host we were telling QEMU to connect to (if any) - */ -static void * -test_migrate_tls_x509_start_default_host(QTestState *from, - QTestState *to) -{ - TestMigrateTLSX509 args = { - .verifyclient = true, - .clientcert = true, - .certipaddr = "127.0.0.1" - }; - return test_migrate_tls_x509_start_common(from, to, &args); -} - -/* - * The unusual case: the server's cert is different from - * the address we're telling QEMU to connect to (if any), - * so we must give QEMU an explicit hostname to validate - */ -static void * -test_migrate_tls_x509_start_override_host(QTestState *from, - QTestState *to) -{ - TestMigrateTLSX509 args = { - .verifyclient = true, - .clientcert = true, - .certhostname = "qemu.org", - }; - return test_migrate_tls_x509_start_common(from, to, &args); -} - -/* - * The unusual case: the server's cert is different from - * the address we're telling QEMU to connect to, and so we - * expect the client to reject the server - */ -static void * -test_migrate_tls_x509_start_mismatch_host(QTestState *from, - QTestState *to) -{ - TestMigrateTLSX509 args = { - .verifyclient = true, - .clientcert = true, - .certipaddr = "10.0.0.1", - }; - return test_migrate_tls_x509_start_common(from, to, &args); -} - -static void * -test_migrate_tls_x509_start_friendly_client(QTestState *from, - QTestState *to) -{ - TestMigrateTLSX509 args = { - .verifyclient = true, - .clientcert = true, - .authzclient = true, - .certipaddr = "127.0.0.1", - }; - return test_migrate_tls_x509_start_common(from, to, &args); -} - -static void * -test_migrate_tls_x509_start_hostile_client(QTestState *from, - QTestState *to) -{ - TestMigrateTLSX509 args = { - .verifyclient = true, - .clientcert = true, - .hostileclient = true, - .authzclient = true, - .certipaddr = "127.0.0.1", - }; - return test_migrate_tls_x509_start_common(from, to, &args); -} - -/* - * The case with no client certificate presented, - * and no server verification - */ -static void * -test_migrate_tls_x509_start_allow_anon_client(QTestState *from, - QTestState *to) -{ - TestMigrateTLSX509 args = { - .certipaddr = "127.0.0.1", - }; - return test_migrate_tls_x509_start_common(from, to, &args); -} - -/* - * The case with no client certificate presented, - * and server verification rejecting - */ -static void * -test_migrate_tls_x509_start_reject_anon_client(QTestState *from, - QTestState *to) -{ - TestMigrateTLSX509 args = { - .verifyclient = true, - .certipaddr = "127.0.0.1", - }; - return test_migrate_tls_x509_start_common(from, to, &args); -} - -static void -test_migrate_tls_x509_finish(QTestState *from, - QTestState *to, - void *opaque) -{ - TestMigrateTLSX509Data *data = opaque; - - test_tls_cleanup(data->keyfile); - g_free(data->keyfile); - - unlink(data->cacert); - g_free(data->cacert); - unlink(data->servercert); - g_free(data->servercert); - unlink(data->serverkey); - g_free(data->serverkey); - - if (data->clientcert) { - unlink(data->clientcert); - g_free(data->clientcert); - } - if (data->clientkey) { - unlink(data->clientkey); - g_free(data->clientkey); - } - - rmdir(data->workdir); - g_free(data->workdir); - - g_free(data); -} -#endif /* CONFIG_TASN1 */ -#endif /* CONFIG_GNUTLS */ - -static int migrate_postcopy_prepare(QTestState **from_ptr, - QTestState **to_ptr, - MigrateCommon *args) -{ - QTestState *from, *to; - - if (test_migrate_start(&from, &to, "defer", &args->start)) { - return -1; - } - - if (args->start_hook) { - args->postcopy_data = args->start_hook(from, to); - } - - migrate_set_capability(from, "postcopy-ram", true); - migrate_set_capability(to, "postcopy-ram", true); - migrate_set_capability(to, "postcopy-blocktime", true); - - if (args->postcopy_preempt) { - migrate_set_capability(from, "postcopy-preempt", true); - migrate_set_capability(to, "postcopy-preempt", true); - } - - migrate_ensure_non_converge(from); - - migrate_prepare_for_dirty_mem(from); - qtest_qmp_assert_success(to, "{ 'execute': 'migrate-incoming'," - " 'arguments': { " - " 'channels': [ { 'channel-type': 'main'," - " 'addr': { 'transport': 'socket'," - " 'type': 'inet'," - " 'host': '127.0.0.1'," - " 'port': '0' } } ] } }"); - - /* Wait for the first serial output from the source */ - wait_for_serial("src_serial"); - wait_for_suspend(from, &src_state); - - migrate_qmp(from, to, NULL, NULL, "{}"); - - migrate_wait_for_dirty_mem(from, to); - - *from_ptr = from; - *to_ptr = to; - - return 0; -} - -static void migrate_postcopy_complete(QTestState *from, QTestState *to, - MigrateCommon *args) -{ - wait_for_migration_complete(from); - - if (args->start.suspend_me) { - /* wakeup succeeds only if guest is suspended */ - qtest_qmp_assert_success(to, "{'execute': 'system_wakeup'}"); - } - - /* Make sure we get at least one "B" on destination */ - wait_for_serial("dest_serial"); - - if (uffd_feature_thread_id) { - read_blocktime(to); - } - - if (args->finish_hook) { - args->finish_hook(from, to, args->postcopy_data); - args->postcopy_data = NULL; - } - - test_migrate_end(from, to, true); -} - -static void test_postcopy_common(MigrateCommon *args) -{ - QTestState *from, *to; - - if (migrate_postcopy_prepare(&from, &to, args)) { - return; - } - migrate_postcopy_start(from, to); - migrate_postcopy_complete(from, to, args); -} - -static void test_postcopy(void) -{ - MigrateCommon args = { }; - - test_postcopy_common(&args); -} - -static void test_postcopy_suspend(void) -{ - MigrateCommon args = { - .start.suspend_me = true, - }; - - test_postcopy_common(&args); -} - -static void test_postcopy_preempt(void) -{ - MigrateCommon args = { - .postcopy_preempt = true, - }; - - test_postcopy_common(&args); -} - -#ifdef CONFIG_GNUTLS -static void test_postcopy_tls_psk(void) -{ - MigrateCommon args = { - .start_hook = test_migrate_tls_psk_start_match, - .finish_hook = test_migrate_tls_psk_finish, - }; - - test_postcopy_common(&args); -} - -static void test_postcopy_preempt_tls_psk(void) -{ - MigrateCommon args = { - .postcopy_preempt = true, - .start_hook = test_migrate_tls_psk_start_match, - .finish_hook = test_migrate_tls_psk_finish, - }; - - test_postcopy_common(&args); -} -#endif - -static void wait_for_postcopy_status(QTestState *one, const char *status) -{ - wait_for_migration_status(one, status, - (const char * []) { - "failed", "active", - "completed", NULL - }); -} - -static void postcopy_recover_fail(QTestState *from, QTestState *to, - PostcopyRecoveryFailStage stage) -{ -#ifndef _WIN32 - bool fail_early = (stage == POSTCOPY_FAIL_CHANNEL_ESTABLISH); - int ret, pair1[2], pair2[2]; - char c; - - g_assert(stage > POSTCOPY_FAIL_NONE && stage < POSTCOPY_FAIL_MAX); - - /* Create two unrelated socketpairs */ - ret = qemu_socketpair(PF_LOCAL, SOCK_STREAM, 0, pair1); - g_assert_cmpint(ret, ==, 0); - - ret = qemu_socketpair(PF_LOCAL, SOCK_STREAM, 0, pair2); - g_assert_cmpint(ret, ==, 0); - - /* - * Give the guests unpaired ends of the sockets, so they'll all blocked - * at reading. This mimics a wrong channel established. - */ - qtest_qmp_fds_assert_success(from, &pair1[0], 1, - "{ 'execute': 'getfd'," - " 'arguments': { 'fdname': 'fd-mig' }}"); - qtest_qmp_fds_assert_success(to, &pair2[0], 1, - "{ 'execute': 'getfd'," - " 'arguments': { 'fdname': 'fd-mig' }}"); - - /* - * Write the 1st byte as QEMU_VM_COMMAND (0x8) for the dest socket, to - * emulate the 1st byte of a real recovery, but stops from there to - * keep dest QEMU in RECOVER. This is needed so that we can kick off - * the recover process on dest QEMU (by triggering the G_IO_IN event). - * - * NOTE: this trick is not needed on src QEMUs, because src doesn't - * rely on an pre-existing G_IO_IN event, so it will always trigger the - * upcoming recovery anyway even if it can read nothing. - */ -#define QEMU_VM_COMMAND 0x08 - c = QEMU_VM_COMMAND; - ret = send(pair2[1], &c, 1, 0); - g_assert_cmpint(ret, ==, 1); - - if (stage == POSTCOPY_FAIL_CHANNEL_ESTABLISH) { - /* - * This will make src QEMU to fail at an early stage when trying to - * resume later, where it shouldn't reach RECOVER stage at all. - */ - close(pair1[1]); - } - - migrate_recover(to, "fd:fd-mig"); - migrate_qmp(from, to, "fd:fd-mig", NULL, "{'resume': true}"); - - /* - * Source QEMU has an extra RECOVER_SETUP phase, dest doesn't have it. - * Make sure it appears along the way. - */ - migration_event_wait(from, "postcopy-recover-setup"); - - if (fail_early) { - /* - * When fails at reconnection, src QEMU will automatically goes - * back to PAUSED state. Making sure there is an event in this - * case: Libvirt relies on this to detect early reconnection - * errors. - */ - migration_event_wait(from, "postcopy-paused"); - } else { - /* - * We want to test "fail later" at RECOVER stage here. Make sure - * both QEMU instances will go into RECOVER stage first, then test - * kicking them out using migrate-pause. - * - * Explicitly check the RECOVER event on src, that's what Libvirt - * relies on, rather than polling. - */ - migration_event_wait(from, "postcopy-recover"); - wait_for_postcopy_status(from, "postcopy-recover"); - - /* Need an explicit kick on src QEMU in this case */ - migrate_pause(from); - } - - /* - * For all failure cases, we'll reach such states on both sides now. - * Check them. - */ - wait_for_postcopy_status(from, "postcopy-paused"); - wait_for_postcopy_status(to, "postcopy-recover"); - - /* - * Kick dest QEMU out too. This is normally not needed in reality - * because when the channel is shutdown it should also happen on src. - * However here we used separate socket pairs so we need to do that - * explicitly. - */ - migrate_pause(to); - wait_for_postcopy_status(to, "postcopy-paused"); - - close(pair1[0]); - close(pair2[0]); - close(pair2[1]); - - if (stage != POSTCOPY_FAIL_CHANNEL_ESTABLISH) { - close(pair1[1]); - } -#endif -} - -static void test_postcopy_recovery_common(MigrateCommon *args) -{ - QTestState *from, *to; - g_autofree char *uri = NULL; - - /* Always hide errors for postcopy recover tests since they're expected */ - args->start.hide_stderr = true; - - if (migrate_postcopy_prepare(&from, &to, args)) { - return; - } - - /* Turn postcopy speed down, 4K/s is slow enough on any machines */ - migrate_set_parameter_int(from, "max-postcopy-bandwidth", 4096); - - /* Now we start the postcopy */ - migrate_postcopy_start(from, to); - - /* - * Wait until postcopy is really started; we can only run the - * migrate-pause command during a postcopy - */ - wait_for_migration_status(from, "postcopy-active", NULL); - - /* - * Manually stop the postcopy migration. This emulates a network - * failure with the migration socket - */ - migrate_pause(from); - - /* - * Wait for destination side to reach postcopy-paused state. The - * migrate-recover command can only succeed if destination machine - * is in the paused state - */ - wait_for_postcopy_status(to, "postcopy-paused"); - wait_for_postcopy_status(from, "postcopy-paused"); - - if (args->postcopy_recovery_fail_stage) { - /* - * Test when a wrong socket specified for recover, and then the - * ability to kick it out, and continue with a correct socket. - */ - postcopy_recover_fail(from, to, args->postcopy_recovery_fail_stage); - /* continue with a good recovery */ - } - - /* - * Create a new socket to emulate a new channel that is different - * from the broken migration channel; tell the destination to - * listen to the new port - */ - uri = g_strdup_printf("unix:%s/migsocket-recover", tmpfs); - migrate_recover(to, uri); - - /* - * Try to rebuild the migration channel using the resume flag and - * the newly created channel - */ - migrate_qmp(from, to, uri, NULL, "{'resume': true}"); - - /* Restore the postcopy bandwidth to unlimited */ - migrate_set_parameter_int(from, "max-postcopy-bandwidth", 0); - - migrate_postcopy_complete(from, to, args); -} - -static void test_postcopy_recovery(void) -{ - MigrateCommon args = { }; - - test_postcopy_recovery_common(&args); -} - -static void test_postcopy_recovery_fail_handshake(void) -{ - MigrateCommon args = { - .postcopy_recovery_fail_stage = POSTCOPY_FAIL_RECOVERY, - }; - - test_postcopy_recovery_common(&args); -} - -static void test_postcopy_recovery_fail_reconnect(void) -{ - MigrateCommon args = { - .postcopy_recovery_fail_stage = POSTCOPY_FAIL_CHANNEL_ESTABLISH, - }; - - test_postcopy_recovery_common(&args); -} - -#ifdef CONFIG_GNUTLS -static void test_postcopy_recovery_tls_psk(void) -{ - MigrateCommon args = { - .start_hook = test_migrate_tls_psk_start_match, - .finish_hook = test_migrate_tls_psk_finish, - }; - - test_postcopy_recovery_common(&args); -} -#endif - -static void test_postcopy_preempt_recovery(void) -{ - MigrateCommon args = { - .postcopy_preempt = true, - }; - - test_postcopy_recovery_common(&args); -} - -#ifdef CONFIG_GNUTLS -/* This contains preempt+recovery+tls test altogether */ -static void test_postcopy_preempt_all(void) -{ - MigrateCommon args = { - .postcopy_preempt = true, - .start_hook = test_migrate_tls_psk_start_match, - .finish_hook = test_migrate_tls_psk_finish, - }; - - test_postcopy_recovery_common(&args); -} - -#endif - -static void test_baddest(void) -{ - MigrateStart args = { - .hide_stderr = true - }; - QTestState *from, *to; - - if (test_migrate_start(&from, &to, "tcp:127.0.0.1:0", &args)) { - return; - } - migrate_qmp(from, to, "tcp:127.0.0.1:0", NULL, "{}"); - wait_for_migration_fail(from, false); - test_migrate_end(from, to, false); -} - -#ifndef _WIN32 -static void test_analyze_script(void) -{ - MigrateStart args = { - .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", - }; - QTestState *from, *to; - g_autofree char *uri = NULL; - g_autofree char *file = NULL; - int pid, wstatus; - const char *python = g_getenv("PYTHON"); - - if (!python) { - g_test_skip("PYTHON variable not set"); - return; - } - - /* dummy url */ - if (test_migrate_start(&from, &to, "tcp:127.0.0.1:0", &args)) { - return; - } - - /* - * Setting these two capabilities causes the "configuration" - * vmstate to include subsections for them. The script needs to - * parse those subsections properly. - */ - migrate_set_capability(from, "validate-uuid", true); - migrate_set_capability(from, "x-ignore-shared", true); - - file = g_strdup_printf("%s/migfile", tmpfs); - uri = g_strdup_printf("exec:cat > %s", file); - - migrate_ensure_converge(from); - migrate_qmp(from, to, uri, NULL, "{}"); - wait_for_migration_complete(from); - - pid = fork(); - if (!pid) { - close(1); - open("/dev/null", O_WRONLY); - execl(python, python, ANALYZE_SCRIPT, "-f", file, NULL); - g_assert_not_reached(); - } - - g_assert(waitpid(pid, &wstatus, 0) == pid); - if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus) != 0) { - g_test_message("Failed to analyze the migration stream"); - g_test_fail(); - } - test_migrate_end(from, to, false); - cleanup("migfile"); -} -#endif - -static void test_precopy_common(MigrateCommon *args) -{ - QTestState *from, *to; - void *data_hook = NULL; - - if (test_migrate_start(&from, &to, args->listen_uri, &args->start)) { - return; - } - - if (args->start_hook) { - data_hook = args->start_hook(from, to); - } - - /* Wait for the first serial output from the source */ - if (args->result == MIG_TEST_SUCCEED) { - wait_for_serial("src_serial"); - wait_for_suspend(from, &src_state); - } - - if (args->live) { - migrate_ensure_non_converge(from); - migrate_prepare_for_dirty_mem(from); - } else { - /* - * Testing non-live migration, we allow it to run at - * full speed to ensure short test case duration. - * For tests expected to fail, we don't need to - * change anything. - */ - if (args->result == MIG_TEST_SUCCEED) { - qtest_qmp_assert_success(from, "{ 'execute' : 'stop'}"); - wait_for_stop(from, &src_state); - migrate_ensure_converge(from); - } - } - - if (args->result == MIG_TEST_QMP_ERROR) { - migrate_qmp_fail(from, args->connect_uri, args->connect_channels, "{}"); - goto finish; - } - - migrate_qmp(from, to, args->connect_uri, args->connect_channels, "{}"); - - if (args->result != MIG_TEST_SUCCEED) { - bool allow_active = args->result == MIG_TEST_FAIL; - wait_for_migration_fail(from, allow_active); - - if (args->result == MIG_TEST_FAIL_DEST_QUIT_ERR) { - qtest_set_expected_status(to, EXIT_FAILURE); - } - } else { - if (args->live) { - /* - * For initial iteration(s) we must do a full pass, - * but for the final iteration, we need only wait - * for some dirty mem before switching to converge - */ - while (args->iterations > 1) { - wait_for_migration_pass(from); - args->iterations--; - } - migrate_wait_for_dirty_mem(from, to); - - migrate_ensure_converge(from); - - /* - * We do this first, as it has a timeout to stop us - * hanging forever if migration didn't converge - */ - wait_for_migration_complete(from); - - wait_for_stop(from, &src_state); - - } else { - wait_for_migration_complete(from); - /* - * Must wait for dst to finish reading all incoming - * data on the socket before issuing 'cont' otherwise - * it'll be ignored - */ - wait_for_migration_complete(to); - - qtest_qmp_assert_success(to, "{ 'execute' : 'cont'}"); - } - - wait_for_resume(to, &dst_state); - - if (args->start.suspend_me) { - /* wakeup succeeds only if guest is suspended */ - qtest_qmp_assert_success(to, "{'execute': 'system_wakeup'}"); - } - - wait_for_serial("dest_serial"); - } - -finish: - if (args->finish_hook) { - args->finish_hook(from, to, data_hook); - } - - test_migrate_end(from, to, args->result == MIG_TEST_SUCCEED); -} - -static void file_dirty_offset_region(void) -{ - g_autofree char *path = g_strdup_printf("%s/%s", tmpfs, FILE_TEST_FILENAME); - size_t size = FILE_TEST_OFFSET; - g_autofree char *data = g_new0(char, size); - - memset(data, FILE_TEST_MARKER, size); - g_assert(g_file_set_contents(path, data, size, NULL)); -} - -static void file_check_offset_region(void) -{ - g_autofree char *path = g_strdup_printf("%s/%s", tmpfs, FILE_TEST_FILENAME); - size_t size = FILE_TEST_OFFSET; - g_autofree char *expected = g_new0(char, size); - g_autofree char *actual = NULL; - uint64_t *stream_start; - - /* - * Ensure the skipped offset region's data has not been touched - * and the migration stream starts at the right place. - */ - - memset(expected, FILE_TEST_MARKER, size); - - g_assert(g_file_get_contents(path, &actual, NULL, NULL)); - g_assert(!memcmp(actual, expected, size)); - - stream_start = (uint64_t *)(actual + size); - g_assert_cmpint(cpu_to_be64(*stream_start) >> 32, ==, QEMU_VM_FILE_MAGIC); -} - -static void test_file_common(MigrateCommon *args, bool stop_src) -{ - QTestState *from, *to; - void *data_hook = NULL; - bool check_offset = false; - - if (test_migrate_start(&from, &to, args->listen_uri, &args->start)) { - return; - } - - /* - * File migration is never live. We can keep the source VM running - * during migration, but the destination will not be running - * concurrently. - */ - g_assert_false(args->live); - - if (g_strrstr(args->connect_uri, "offset=")) { - check_offset = true; - /* - * This comes before the start_hook because it's equivalent to - * a management application creating the file and writing to - * it so hooks should expect the file to be already present. - */ - file_dirty_offset_region(); - } - - if (args->start_hook) { - data_hook = args->start_hook(from, to); - } - - migrate_ensure_converge(from); - wait_for_serial("src_serial"); - - if (stop_src) { - qtest_qmp_assert_success(from, "{ 'execute' : 'stop'}"); - wait_for_stop(from, &src_state); - } - - if (args->result == MIG_TEST_QMP_ERROR) { - migrate_qmp_fail(from, args->connect_uri, NULL, "{}"); - goto finish; - } - - migrate_qmp(from, to, args->connect_uri, NULL, "{}"); - wait_for_migration_complete(from); - - /* - * We need to wait for the source to finish before starting the - * destination. - */ - migrate_incoming_qmp(to, args->connect_uri, "{}"); - wait_for_migration_complete(to); - - if (stop_src) { - qtest_qmp_assert_success(to, "{ 'execute' : 'cont'}"); - } - wait_for_resume(to, &dst_state); - - wait_for_serial("dest_serial"); - - if (check_offset) { - file_check_offset_region(); - } - -finish: - if (args->finish_hook) { - args->finish_hook(from, to, data_hook); - } - - test_migrate_end(from, to, args->result == MIG_TEST_SUCCEED); -} - -static void test_precopy_unix_plain(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateCommon args = { - .listen_uri = uri, - .connect_uri = uri, - /* - * The simplest use case of precopy, covering smoke tests of - * get-dirty-log dirty tracking. - */ - .live = true, - }; - - test_precopy_common(&args); -} - -static void test_precopy_unix_suspend_live(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateCommon args = { - .listen_uri = uri, - .connect_uri = uri, - /* - * despite being live, the test is fast because the src - * suspends immediately. - */ - .live = true, - .start.suspend_me = true, - }; - - test_precopy_common(&args); -} - -static void test_precopy_unix_suspend_notlive(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateCommon args = { - .listen_uri = uri, - .connect_uri = uri, - .start.suspend_me = true, - }; - - test_precopy_common(&args); -} - -static void test_precopy_unix_dirty_ring(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateCommon args = { - .start = { - .use_dirty_ring = true, - }, - .listen_uri = uri, - .connect_uri = uri, - /* - * Besides the precopy/unix basic test, cover dirty ring interface - * rather than get-dirty-log. - */ - .live = true, - }; - - test_precopy_common(&args); -} - -#ifdef CONFIG_GNUTLS -static void test_precopy_unix_tls_psk(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = uri, - .start_hook = test_migrate_tls_psk_start_match, - .finish_hook = test_migrate_tls_psk_finish, - }; - - test_precopy_common(&args); -} - -#ifdef CONFIG_TASN1 -static void test_precopy_unix_tls_x509_default_host(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .connect_uri = uri, - .listen_uri = uri, - .start_hook = test_migrate_tls_x509_start_default_host, - .finish_hook = test_migrate_tls_x509_finish, - .result = MIG_TEST_FAIL_DEST_QUIT_ERR, - }; - - test_precopy_common(&args); -} - -static void test_precopy_unix_tls_x509_override_host(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = uri, - .start_hook = test_migrate_tls_x509_start_override_host, - .finish_hook = test_migrate_tls_x509_finish, - }; - - test_precopy_common(&args); -} -#endif /* CONFIG_TASN1 */ -#endif /* CONFIG_GNUTLS */ - -#if 0 -/* Currently upset on aarch64 TCG */ -static void test_ignore_shared(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - QTestState *from, *to; - - if (test_migrate_start(&from, &to, uri, false, true, NULL, NULL)) { - return; - } - - migrate_ensure_non_converge(from); - migrate_prepare_for_dirty_mem(from); - - migrate_set_capability(from, "x-ignore-shared", true); - migrate_set_capability(to, "x-ignore-shared", true); - - /* Wait for the first serial output from the source */ - wait_for_serial("src_serial"); - - migrate_qmp(from, to, uri, NULL, "{}"); - - migrate_wait_for_dirty_mem(from, to); - - wait_for_stop(from, &src_state); - - qtest_qmp_eventwait(to, "RESUME"); - - wait_for_serial("dest_serial"); - wait_for_migration_complete(from); - - /* Check whether shared RAM has been really skipped */ - g_assert_cmpint(read_ram_property_int(from, "transferred"), <, 1024 * 1024); - - test_migrate_end(from, to, true); -} -#endif - -static void * -test_migrate_xbzrle_start(QTestState *from, - QTestState *to) -{ - migrate_set_parameter_int(from, "xbzrle-cache-size", 33554432); - - migrate_set_capability(from, "xbzrle", true); - migrate_set_capability(to, "xbzrle", true); - - return NULL; -} - -static void test_precopy_unix_xbzrle(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = uri, - .start_hook = test_migrate_xbzrle_start, - .iterations = 2, - /* - * XBZRLE needs pages to be modified when doing the 2nd+ round - * iteration to have real data pushed to the stream. - */ - .live = true, - }; - - test_precopy_common(&args); -} - -static void test_precopy_file(void) -{ - g_autofree char *uri = g_strdup_printf("file:%s/%s", tmpfs, - FILE_TEST_FILENAME); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - }; - - test_file_common(&args, true); -} - -#ifndef _WIN32 -static void fdset_add_fds(QTestState *qts, const char *file, int flags, - int num_fds, bool direct_io) -{ - for (int i = 0; i < num_fds; i++) { - int fd; - -#ifdef O_DIRECT - /* only secondary channels can use direct-io */ - if (direct_io && i != 0) { - flags |= O_DIRECT; - } -#endif - - fd = open(file, flags, 0660); - assert(fd != -1); - - qtest_qmp_fds_assert_success(qts, &fd, 1, "{'execute': 'add-fd', " - "'arguments': {'fdset-id': 1}}"); - close(fd); - } -} - -static void *file_offset_fdset_start_hook(QTestState *from, QTestState *to) -{ - g_autofree char *file = g_strdup_printf("%s/%s", tmpfs, FILE_TEST_FILENAME); - - fdset_add_fds(from, file, O_WRONLY, 1, false); - fdset_add_fds(to, file, O_RDONLY, 1, false); - - return NULL; -} - -static void test_precopy_file_offset_fdset(void) -{ - g_autofree char *uri = g_strdup_printf("file:/dev/fdset/1,offset=%d", - FILE_TEST_OFFSET); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = file_offset_fdset_start_hook, - }; - - test_file_common(&args, false); -} -#endif - -static void test_precopy_file_offset(void) -{ - g_autofree char *uri = g_strdup_printf("file:%s/%s,offset=%d", tmpfs, - FILE_TEST_FILENAME, - FILE_TEST_OFFSET); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - }; - - test_file_common(&args, false); -} - -static void test_precopy_file_offset_bad(void) -{ - /* using a value not supported by qemu_strtosz() */ - g_autofree char *uri = g_strdup_printf("file:%s/%s,offset=0x20M", - tmpfs, FILE_TEST_FILENAME); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .result = MIG_TEST_QMP_ERROR, - }; - - test_file_common(&args, false); -} - -static void *test_mode_reboot_start(QTestState *from, QTestState *to) -{ - migrate_set_parameter_str(from, "mode", "cpr-reboot"); - migrate_set_parameter_str(to, "mode", "cpr-reboot"); - - migrate_set_capability(from, "x-ignore-shared", true); - migrate_set_capability(to, "x-ignore-shared", true); - - return NULL; -} - -static void *migrate_mapped_ram_start(QTestState *from, QTestState *to) -{ - migrate_set_capability(from, "mapped-ram", true); - migrate_set_capability(to, "mapped-ram", true); - - return NULL; -} - -static void test_mode_reboot(void) -{ - g_autofree char *uri = g_strdup_printf("file:%s/%s", tmpfs, - FILE_TEST_FILENAME); - MigrateCommon args = { - .start.use_shmem = true, - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = test_mode_reboot_start - }; - - test_file_common(&args, true); -} - -static void test_precopy_file_mapped_ram_live(void) -{ - g_autofree char *uri = g_strdup_printf("file:%s/%s", tmpfs, - FILE_TEST_FILENAME); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = migrate_mapped_ram_start, - }; - - test_file_common(&args, false); -} - -static void test_precopy_file_mapped_ram(void) -{ - g_autofree char *uri = g_strdup_printf("file:%s/%s", tmpfs, - FILE_TEST_FILENAME); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = migrate_mapped_ram_start, - }; - - test_file_common(&args, true); -} - -static void *migrate_multifd_mapped_ram_start(QTestState *from, QTestState *to) -{ - migrate_mapped_ram_start(from, to); - - migrate_set_parameter_int(from, "multifd-channels", 4); - migrate_set_parameter_int(to, "multifd-channels", 4); - - migrate_set_capability(from, "multifd", true); - migrate_set_capability(to, "multifd", true); - - return NULL; -} - -static void test_multifd_file_mapped_ram_live(void) -{ - g_autofree char *uri = g_strdup_printf("file:%s/%s", tmpfs, - FILE_TEST_FILENAME); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = migrate_multifd_mapped_ram_start, - }; - - test_file_common(&args, false); -} - -static void test_multifd_file_mapped_ram(void) -{ - g_autofree char *uri = g_strdup_printf("file:%s/%s", tmpfs, - FILE_TEST_FILENAME); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = migrate_multifd_mapped_ram_start, - }; - - test_file_common(&args, true); -} - -static void *multifd_mapped_ram_dio_start(QTestState *from, QTestState *to) -{ - migrate_multifd_mapped_ram_start(from, to); - - migrate_set_parameter_bool(from, "direct-io", true); - migrate_set_parameter_bool(to, "direct-io", true); - - return NULL; -} - -static void test_multifd_file_mapped_ram_dio(void) -{ - g_autofree char *uri = g_strdup_printf("file:%s/%s", tmpfs, - FILE_TEST_FILENAME); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = multifd_mapped_ram_dio_start, - }; - - if (!probe_o_direct_support(tmpfs)) { - g_test_skip("Filesystem does not support O_DIRECT"); - return; - } - - test_file_common(&args, true); -} - -#ifndef _WIN32 -static void multifd_mapped_ram_fdset_end(QTestState *from, QTestState *to, - void *opaque) -{ - QDict *resp; - QList *fdsets; - - /* - * Remove the fdsets after migration, otherwise a second migration - * would fail due fdset reuse. - */ - qtest_qmp_assert_success(from, "{'execute': 'remove-fd', " - "'arguments': { 'fdset-id': 1}}"); - - /* - * Make sure no fdsets are left after migration, otherwise a - * second migration would fail due fdset reuse. - */ - resp = qtest_qmp(from, "{'execute': 'query-fdsets', " - "'arguments': {}}"); - g_assert(qdict_haskey(resp, "return")); - fdsets = qdict_get_qlist(resp, "return"); - g_assert(fdsets && qlist_empty(fdsets)); - qobject_unref(resp); -} - -static void *multifd_mapped_ram_fdset_dio(QTestState *from, QTestState *to) -{ - g_autofree char *file = g_strdup_printf("%s/%s", tmpfs, FILE_TEST_FILENAME); - - fdset_add_fds(from, file, O_WRONLY, 2, true); - fdset_add_fds(to, file, O_RDONLY, 2, true); - - migrate_multifd_mapped_ram_start(from, to); - migrate_set_parameter_bool(from, "direct-io", true); - migrate_set_parameter_bool(to, "direct-io", true); - - return NULL; -} - -static void *multifd_mapped_ram_fdset(QTestState *from, QTestState *to) -{ - g_autofree char *file = g_strdup_printf("%s/%s", tmpfs, FILE_TEST_FILENAME); - - fdset_add_fds(from, file, O_WRONLY, 2, false); - fdset_add_fds(to, file, O_RDONLY, 2, false); - - migrate_multifd_mapped_ram_start(from, to); - - return NULL; -} - -static void test_multifd_file_mapped_ram_fdset(void) -{ - g_autofree char *uri = g_strdup_printf("file:/dev/fdset/1,offset=%d", - FILE_TEST_OFFSET); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = multifd_mapped_ram_fdset, - .finish_hook = multifd_mapped_ram_fdset_end, - }; - - test_file_common(&args, true); -} - -static void test_multifd_file_mapped_ram_fdset_dio(void) -{ - g_autofree char *uri = g_strdup_printf("file:/dev/fdset/1,offset=%d", - FILE_TEST_OFFSET); - MigrateCommon args = { - .connect_uri = uri, - .listen_uri = "defer", - .start_hook = multifd_mapped_ram_fdset_dio, - .finish_hook = multifd_mapped_ram_fdset_end, - }; - - if (!probe_o_direct_support(tmpfs)) { - g_test_skip("Filesystem does not support O_DIRECT"); - return; - } - - test_file_common(&args, true); -} -#endif /* !_WIN32 */ - -static void test_precopy_tcp_plain(void) -{ - MigrateCommon args = { - .listen_uri = "tcp:127.0.0.1:0", - }; - - test_precopy_common(&args); -} - -static void *test_migrate_switchover_ack_start(QTestState *from, QTestState *to) -{ - - migrate_set_capability(from, "return-path", true); - migrate_set_capability(to, "return-path", true); - - migrate_set_capability(from, "switchover-ack", true); - migrate_set_capability(to, "switchover-ack", true); - - return NULL; -} - -static void test_precopy_tcp_switchover_ack(void) -{ - MigrateCommon args = { - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_switchover_ack_start, - /* - * Source VM must be running in order to consider the switchover ACK - * when deciding to do switchover or not. - */ - .live = true, - }; - - test_precopy_common(&args); -} - -#ifdef CONFIG_GNUTLS -static void test_precopy_tcp_tls_psk_match(void) -{ - MigrateCommon args = { - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_psk_start_match, - .finish_hook = test_migrate_tls_psk_finish, - }; - - test_precopy_common(&args); -} - -static void test_precopy_tcp_tls_psk_mismatch(void) -{ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_psk_start_mismatch, - .finish_hook = test_migrate_tls_psk_finish, - .result = MIG_TEST_FAIL, - }; - - test_precopy_common(&args); -} - -#ifdef CONFIG_TASN1 -static void test_precopy_tcp_tls_x509_default_host(void) -{ - MigrateCommon args = { - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_x509_start_default_host, - .finish_hook = test_migrate_tls_x509_finish, - }; - - test_precopy_common(&args); -} - -static void test_precopy_tcp_tls_x509_override_host(void) -{ - MigrateCommon args = { - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_x509_start_override_host, - .finish_hook = test_migrate_tls_x509_finish, - }; - - test_precopy_common(&args); -} - -static void test_precopy_tcp_tls_x509_mismatch_host(void) -{ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_x509_start_mismatch_host, - .finish_hook = test_migrate_tls_x509_finish, - .result = MIG_TEST_FAIL_DEST_QUIT_ERR, - }; - - test_precopy_common(&args); -} - -static void test_precopy_tcp_tls_x509_friendly_client(void) -{ - MigrateCommon args = { - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_x509_start_friendly_client, - .finish_hook = test_migrate_tls_x509_finish, - }; - - test_precopy_common(&args); -} - -static void test_precopy_tcp_tls_x509_hostile_client(void) -{ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_x509_start_hostile_client, - .finish_hook = test_migrate_tls_x509_finish, - .result = MIG_TEST_FAIL, - }; - - test_precopy_common(&args); -} - -static void test_precopy_tcp_tls_x509_allow_anon_client(void) -{ - MigrateCommon args = { - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_x509_start_allow_anon_client, - .finish_hook = test_migrate_tls_x509_finish, - }; - - test_precopy_common(&args); -} - -static void test_precopy_tcp_tls_x509_reject_anon_client(void) -{ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "tcp:127.0.0.1:0", - .start_hook = test_migrate_tls_x509_start_reject_anon_client, - .finish_hook = test_migrate_tls_x509_finish, - .result = MIG_TEST_FAIL, - }; - - test_precopy_common(&args); -} -#endif /* CONFIG_TASN1 */ -#endif /* CONFIG_GNUTLS */ - -#ifndef _WIN32 -static void *test_migrate_fd_start_hook(QTestState *from, - QTestState *to) -{ - int ret; - int pair[2]; - - /* Create two connected sockets for migration */ - ret = qemu_socketpair(PF_LOCAL, SOCK_STREAM, 0, pair); - g_assert_cmpint(ret, ==, 0); - - /* Send the 1st socket to the target */ - qtest_qmp_fds_assert_success(to, &pair[0], 1, - "{ 'execute': 'getfd'," - " 'arguments': { 'fdname': 'fd-mig' }}"); - close(pair[0]); - - /* Start incoming migration from the 1st socket */ - migrate_incoming_qmp(to, "fd:fd-mig", "{}"); - - /* Send the 2nd socket to the target */ - qtest_qmp_fds_assert_success(from, &pair[1], 1, - "{ 'execute': 'getfd'," - " 'arguments': { 'fdname': 'fd-mig' }}"); - close(pair[1]); - - return NULL; -} - -static void test_migrate_fd_finish_hook(QTestState *from, - QTestState *to, - void *opaque) -{ - QDict *rsp; - const char *error_desc; - - /* Test closing fds */ - /* We assume, that QEMU removes named fd from its list, - * so this should fail */ - rsp = qtest_qmp(from, - "{ 'execute': 'closefd'," - " 'arguments': { 'fdname': 'fd-mig' }}"); - g_assert_true(qdict_haskey(rsp, "error")); - error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc"); - g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found"); - qobject_unref(rsp); - - rsp = qtest_qmp(to, - "{ 'execute': 'closefd'," - " 'arguments': { 'fdname': 'fd-mig' }}"); - g_assert_true(qdict_haskey(rsp, "error")); - error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc"); - g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found"); - qobject_unref(rsp); -} - -static void test_migrate_precopy_fd_socket(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .connect_uri = "fd:fd-mig", - .start_hook = test_migrate_fd_start_hook, - .finish_hook = test_migrate_fd_finish_hook - }; - test_precopy_common(&args); -} - -static void *migrate_precopy_fd_file_start(QTestState *from, QTestState *to) -{ - g_autofree char *file = g_strdup_printf("%s/%s", tmpfs, FILE_TEST_FILENAME); - int src_flags = O_CREAT | O_RDWR; - int dst_flags = O_CREAT | O_RDWR; - int fds[2]; - - fds[0] = open(file, src_flags, 0660); - assert(fds[0] != -1); - - fds[1] = open(file, dst_flags, 0660); - assert(fds[1] != -1); - - - qtest_qmp_fds_assert_success(to, &fds[0], 1, - "{ 'execute': 'getfd'," - " 'arguments': { 'fdname': 'fd-mig' }}"); - - qtest_qmp_fds_assert_success(from, &fds[1], 1, - "{ 'execute': 'getfd'," - " 'arguments': { 'fdname': 'fd-mig' }}"); - - close(fds[0]); - close(fds[1]); - - return NULL; -} - -static void test_migrate_precopy_fd_file(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .connect_uri = "fd:fd-mig", - .start_hook = migrate_precopy_fd_file_start, - .finish_hook = test_migrate_fd_finish_hook - }; - test_file_common(&args, true); -} -#endif /* _WIN32 */ - -static void do_test_validate_uuid(MigrateStart *args, bool should_fail) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - QTestState *from, *to; - - if (test_migrate_start(&from, &to, uri, args)) { - return; - } - - /* - * UUID validation is at the begin of migration. So, the main process of - * migration is not interesting for us here. Thus, set huge downtime for - * very fast migration. - */ - migrate_set_parameter_int(from, "downtime-limit", 1000000); - migrate_set_capability(from, "validate-uuid", true); - - /* Wait for the first serial output from the source */ - wait_for_serial("src_serial"); - - migrate_qmp(from, to, uri, NULL, "{}"); - - if (should_fail) { - qtest_set_expected_status(to, EXIT_FAILURE); - wait_for_migration_fail(from, true); - } else { - wait_for_migration_complete(from); - } - - test_migrate_end(from, to, false); -} - -static void test_validate_uuid(void) -{ - MigrateStart args = { - .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", - .opts_target = "-uuid 11111111-1111-1111-1111-111111111111", - }; - - do_test_validate_uuid(&args, false); -} - -static void test_validate_uuid_error(void) -{ - MigrateStart args = { - .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", - .opts_target = "-uuid 22222222-2222-2222-2222-222222222222", - .hide_stderr = true, - }; - - do_test_validate_uuid(&args, true); -} - -static void test_validate_uuid_src_not_set(void) -{ - MigrateStart args = { - .opts_target = "-uuid 22222222-2222-2222-2222-222222222222", - .hide_stderr = true, - }; - - do_test_validate_uuid(&args, false); -} - -static void test_validate_uuid_dst_not_set(void) -{ - MigrateStart args = { - .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", - .hide_stderr = true, - }; - - do_test_validate_uuid(&args, false); -} - -static void do_test_validate_uri_channel(MigrateCommon *args) -{ - QTestState *from, *to; - - if (test_migrate_start(&from, &to, args->listen_uri, &args->start)) { - return; - } - - /* Wait for the first serial output from the source */ - wait_for_serial("src_serial"); - - /* - * 'uri' and 'channels' validation is checked even before the migration - * starts. - */ - migrate_qmp_fail(from, args->connect_uri, args->connect_channels, "{}"); - test_migrate_end(from, to, false); -} - -static void test_validate_uri_channels_both_set(void) -{ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "defer", - .connect_uri = "tcp:127.0.0.1:0", - .connect_channels = ("[ { ""'channel-type': 'main'," - " 'addr': { 'transport': 'socket'," - " 'type': 'inet'," - " 'host': '127.0.0.1'," - " 'port': '0' } } ]"), - }; - - do_test_validate_uri_channel(&args); -} - -static void test_validate_uri_channels_none_set(void) -{ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "defer", - }; - - do_test_validate_uri_channel(&args); -} - -/* - * The way auto_converge works, we need to do too many passes to - * run this test. Auto_converge logic is only run once every - * three iterations, so: - * - * - 3 iterations without auto_converge enabled - * - 3 iterations with pct = 5 - * - 3 iterations with pct = 30 - * - 3 iterations with pct = 55 - * - 3 iterations with pct = 80 - * - 3 iterations with pct = 95 (max(95, 80 + 25)) - * - * To make things even worse, we need to run the initial stage at - * 3MB/s so we enter autoconverge even when host is (over)loaded. - */ -static void test_migrate_auto_converge(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - MigrateStart args = {}; - QTestState *from, *to; - int64_t percentage; - - /* - * We want the test to be stable and as fast as possible. - * E.g., with 1Gb/s bandwidth migration may pass without throttling, - * so we need to decrease a bandwidth. - */ - const int64_t init_pct = 5, inc_pct = 25, max_pct = 95; - uint64_t prev_dirty_sync_cnt, dirty_sync_cnt; - int max_try_count, hit = 0; - - if (test_migrate_start(&from, &to, uri, &args)) { - return; - } - - migrate_set_capability(from, "auto-converge", true); - migrate_set_parameter_int(from, "cpu-throttle-initial", init_pct); - migrate_set_parameter_int(from, "cpu-throttle-increment", inc_pct); - migrate_set_parameter_int(from, "max-cpu-throttle", max_pct); - - /* - * Set the initial parameters so that the migration could not converge - * without throttling. - */ - migrate_ensure_non_converge(from); - - /* To check remaining size after precopy */ - migrate_set_capability(from, "pause-before-switchover", true); - - /* Wait for the first serial output from the source */ - wait_for_serial("src_serial"); - - migrate_qmp(from, to, uri, NULL, "{}"); - - /* Wait for throttling begins */ - percentage = 0; - do { - percentage = read_migrate_property_int(from, "cpu-throttle-percentage"); - if (percentage != 0) { - break; - } - usleep(20); - g_assert_false(src_state.stop_seen); - } while (true); - /* The first percentage of throttling should be at least init_pct */ - g_assert_cmpint(percentage, >=, init_pct); - - /* - * End the loop when the dirty sync count greater than 1. - */ - while ((dirty_sync_cnt = get_migration_pass(from)) < 2) { - usleep(1000 * 1000); - } - - prev_dirty_sync_cnt = dirty_sync_cnt; - - /* - * The RAMBlock dirty sync count must changes in 5 seconds, here we set - * the timeout to 10 seconds to ensure it changes. - * - * Note that migrate_ensure_non_converge set the max-bandwidth to 3MB/s, - * while the qtest mem is >= 100MB, one iteration takes at least 33s (100/3) - * to complete; this ensures that the RAMBlock dirty sync occurs. - */ - max_try_count = 10; - while (--max_try_count) { - dirty_sync_cnt = get_migration_pass(from); - if (dirty_sync_cnt != prev_dirty_sync_cnt) { - hit = 1; - break; - } - prev_dirty_sync_cnt = dirty_sync_cnt; - sleep(1); - } - g_assert_cmpint(hit, ==, 1); - - /* Now, when we tested that throttling works, let it converge */ - migrate_ensure_converge(from); - - /* - * Wait for pre-switchover status to check last throttle percentage - * and remaining. These values will be zeroed later - */ - wait_for_migration_status(from, "pre-switchover", NULL); - - /* The final percentage of throttling shouldn't be greater than max_pct */ - percentage = read_migrate_property_int(from, "cpu-throttle-percentage"); - g_assert_cmpint(percentage, <=, max_pct); - migrate_continue(from, "pre-switchover"); - - qtest_qmp_eventwait(to, "RESUME"); - - wait_for_serial("dest_serial"); - wait_for_migration_complete(from); - - test_migrate_end(from, to, true); -} - -static void * -test_migrate_precopy_tcp_multifd_start_common(QTestState *from, - QTestState *to, - const char *method) -{ - migrate_set_parameter_int(from, "multifd-channels", 16); - migrate_set_parameter_int(to, "multifd-channels", 16); - - migrate_set_parameter_str(from, "multifd-compression", method); - migrate_set_parameter_str(to, "multifd-compression", method); - - migrate_set_capability(from, "multifd", true); - migrate_set_capability(to, "multifd", true); - - /* Start incoming migration from the 1st socket */ - migrate_incoming_qmp(to, "tcp:127.0.0.1:0", "{}"); - - return NULL; -} - -static void * -test_migrate_precopy_tcp_multifd_start(QTestState *from, - QTestState *to) -{ - return test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); -} - -static void * -test_migrate_precopy_tcp_multifd_start_zero_page_legacy(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - migrate_set_parameter_str(from, "zero-page-detection", "legacy"); - return NULL; -} - -static void * -test_migration_precopy_tcp_multifd_start_no_zero_page(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - migrate_set_parameter_str(from, "zero-page-detection", "none"); - return NULL; -} - -static void * -test_migrate_precopy_tcp_multifd_zlib_start(QTestState *from, - QTestState *to) -{ - /* - * Overloading this test to also check that set_parameter does not error. - * This is also done in the tests for the other compression methods. - */ - migrate_set_parameter_int(from, "multifd-zlib-level", 2); - migrate_set_parameter_int(to, "multifd-zlib-level", 2); - - return test_migrate_precopy_tcp_multifd_start_common(from, to, "zlib"); -} - -#ifdef CONFIG_ZSTD -static void * -test_migrate_precopy_tcp_multifd_zstd_start(QTestState *from, - QTestState *to) -{ - migrate_set_parameter_int(from, "multifd-zstd-level", 2); - migrate_set_parameter_int(to, "multifd-zstd-level", 2); - - return test_migrate_precopy_tcp_multifd_start_common(from, to, "zstd"); -} -#endif /* CONFIG_ZSTD */ - -#ifdef CONFIG_QATZIP -static void * -test_migrate_precopy_tcp_multifd_qatzip_start(QTestState *from, - QTestState *to) -{ - migrate_set_parameter_int(from, "multifd-qatzip-level", 2); - migrate_set_parameter_int(to, "multifd-qatzip-level", 2); - - return test_migrate_precopy_tcp_multifd_start_common(from, to, "qatzip"); -} -#endif - -#ifdef CONFIG_QPL -static void * -test_migrate_precopy_tcp_multifd_qpl_start(QTestState *from, - QTestState *to) -{ - return test_migrate_precopy_tcp_multifd_start_common(from, to, "qpl"); -} -#endif /* CONFIG_QPL */ -#ifdef CONFIG_UADK -static void * -test_migrate_precopy_tcp_multifd_uadk_start(QTestState *from, - QTestState *to) -{ - return test_migrate_precopy_tcp_multifd_start_common(from, to, "uadk"); -} -#endif /* CONFIG_UADK */ - -static void test_multifd_tcp_uri_none(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_precopy_tcp_multifd_start, - /* - * Multifd is more complicated than most of the features, it - * directly takes guest page buffers when sending, make sure - * everything will work alright even if guest page is changing. - */ - .live = true, - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_zero_page_legacy(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_precopy_tcp_multifd_start_zero_page_legacy, - /* - * Multifd is more complicated than most of the features, it - * directly takes guest page buffers when sending, make sure - * everything will work alright even if guest page is changing. - */ - .live = true, - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_no_zero_page(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migration_precopy_tcp_multifd_start_no_zero_page, - /* - * Multifd is more complicated than most of the features, it - * directly takes guest page buffers when sending, make sure - * everything will work alright even if guest page is changing. - */ - .live = true, - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_channels_none(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_precopy_tcp_multifd_start, - .live = true, - .connect_channels = ("[ { 'channel-type': 'main'," - " 'addr': { 'transport': 'socket'," - " 'type': 'inet'," - " 'host': '127.0.0.1'," - " 'port': '0' } } ]"), - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_zlib(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_precopy_tcp_multifd_zlib_start, - }; - test_precopy_common(&args); -} - -#ifdef CONFIG_ZSTD -static void test_multifd_tcp_zstd(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_precopy_tcp_multifd_zstd_start, - }; - test_precopy_common(&args); -} -#endif - -#ifdef CONFIG_QATZIP -static void test_multifd_tcp_qatzip(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_precopy_tcp_multifd_qatzip_start, - }; - test_precopy_common(&args); -} -#endif - -#ifdef CONFIG_QPL -static void test_multifd_tcp_qpl(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_precopy_tcp_multifd_qpl_start, - }; - test_precopy_common(&args); -} -#endif - -#ifdef CONFIG_UADK -static void test_multifd_tcp_uadk(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_precopy_tcp_multifd_uadk_start, - }; - test_precopy_common(&args); -} -#endif - -#ifdef CONFIG_GNUTLS -static void * -test_migrate_multifd_tcp_tls_psk_start_match(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - return test_migrate_tls_psk_start_match(from, to); -} - -static void * -test_migrate_multifd_tcp_tls_psk_start_mismatch(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - return test_migrate_tls_psk_start_mismatch(from, to); -} - -#ifdef CONFIG_TASN1 -static void * -test_migrate_multifd_tls_x509_start_default_host(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - return test_migrate_tls_x509_start_default_host(from, to); -} - -static void * -test_migrate_multifd_tls_x509_start_override_host(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - return test_migrate_tls_x509_start_override_host(from, to); -} - -static void * -test_migrate_multifd_tls_x509_start_mismatch_host(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - return test_migrate_tls_x509_start_mismatch_host(from, to); -} - -static void * -test_migrate_multifd_tls_x509_start_allow_anon_client(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - return test_migrate_tls_x509_start_allow_anon_client(from, to); -} - -static void * -test_migrate_multifd_tls_x509_start_reject_anon_client(QTestState *from, - QTestState *to) -{ - test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); - return test_migrate_tls_x509_start_reject_anon_client(from, to); -} -#endif /* CONFIG_TASN1 */ - -static void test_multifd_tcp_tls_psk_match(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_multifd_tcp_tls_psk_start_match, - .finish_hook = test_migrate_tls_psk_finish, - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_tls_psk_mismatch(void) -{ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "defer", - .start_hook = test_migrate_multifd_tcp_tls_psk_start_mismatch, - .finish_hook = test_migrate_tls_psk_finish, - .result = MIG_TEST_FAIL, - }; - test_precopy_common(&args); -} - -#ifdef CONFIG_TASN1 -static void test_multifd_tcp_tls_x509_default_host(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_multifd_tls_x509_start_default_host, - .finish_hook = test_migrate_tls_x509_finish, - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_tls_x509_override_host(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_multifd_tls_x509_start_override_host, - .finish_hook = test_migrate_tls_x509_finish, - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_tls_x509_mismatch_host(void) -{ - /* - * This has different behaviour to the non-multifd case. - * - * In non-multifd case when client aborts due to mismatched - * cert host, the server has already started trying to load - * migration state, and so it exits with I/O failure. - * - * In multifd case when client aborts due to mismatched - * cert host, the server is still waiting for the other - * multifd connections to arrive so hasn't started trying - * to load migration state, and thus just aborts the migration - * without exiting. - */ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "defer", - .start_hook = test_migrate_multifd_tls_x509_start_mismatch_host, - .finish_hook = test_migrate_tls_x509_finish, - .result = MIG_TEST_FAIL, - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_tls_x509_allow_anon_client(void) -{ - MigrateCommon args = { - .listen_uri = "defer", - .start_hook = test_migrate_multifd_tls_x509_start_allow_anon_client, - .finish_hook = test_migrate_tls_x509_finish, - }; - test_precopy_common(&args); -} - -static void test_multifd_tcp_tls_x509_reject_anon_client(void) -{ - MigrateCommon args = { - .start = { - .hide_stderr = true, - }, - .listen_uri = "defer", - .start_hook = test_migrate_multifd_tls_x509_start_reject_anon_client, - .finish_hook = test_migrate_tls_x509_finish, - .result = MIG_TEST_FAIL, - }; - test_precopy_common(&args); -} -#endif /* CONFIG_TASN1 */ -#endif /* CONFIG_GNUTLS */ - -/* - * This test does: - * source target - * migrate_incoming - * migrate - * migrate_cancel - * launch another target - * migrate - * - * And see that it works - */ -static void test_multifd_tcp_cancel(void) -{ - MigrateStart args = { - .hide_stderr = true, - }; - QTestState *from, *to, *to2; - - if (test_migrate_start(&from, &to, "defer", &args)) { - return; - } - - migrate_ensure_non_converge(from); - migrate_prepare_for_dirty_mem(from); - - migrate_set_parameter_int(from, "multifd-channels", 16); - migrate_set_parameter_int(to, "multifd-channels", 16); - - migrate_set_capability(from, "multifd", true); - migrate_set_capability(to, "multifd", true); - - /* Start incoming migration from the 1st socket */ - migrate_incoming_qmp(to, "tcp:127.0.0.1:0", "{}"); - - /* Wait for the first serial output from the source */ - wait_for_serial("src_serial"); - - migrate_qmp(from, to, NULL, NULL, "{}"); - - migrate_wait_for_dirty_mem(from, to); - - migrate_cancel(from); - - /* Make sure QEMU process "to" exited */ - qtest_set_expected_status(to, EXIT_FAILURE); - qtest_wait_qemu(to); - qtest_quit(to); - - /* - * Ensure the source QEMU finishes its cancellation process before we - * proceed with the setup of the next migration. The test_migrate_start() - * function and others might want to interact with the source in a way that - * is not possible while the migration is not canceled properly. For - * example, setting migration capabilities when the migration is still - * running leads to an error. - */ - wait_for_migration_status(from, "cancelled", NULL); - - args = (MigrateStart){ - .only_target = true, - }; - - if (test_migrate_start(&from, &to2, "defer", &args)) { - return; - } - - migrate_set_parameter_int(to2, "multifd-channels", 16); - - migrate_set_capability(to2, "multifd", true); - - /* Start incoming migration from the 1st socket */ - migrate_incoming_qmp(to2, "tcp:127.0.0.1:0", "{}"); - - migrate_ensure_non_converge(from); - - migrate_qmp(from, to2, NULL, NULL, "{}"); - - migrate_wait_for_dirty_mem(from, to2); - - migrate_ensure_converge(from); - - wait_for_stop(from, &src_state); - qtest_qmp_eventwait(to2, "RESUME"); - - wait_for_serial("dest_serial"); - wait_for_migration_complete(from); - test_migrate_end(from, to2, true); -} - -static void calc_dirty_rate(QTestState *who, uint64_t calc_time) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'calc-dirty-rate'," - "'arguments': { " - "'calc-time': %" PRIu64 "," - "'mode': 'dirty-ring' }}", - calc_time); -} - -static QDict *query_dirty_rate(QTestState *who) -{ - return qtest_qmp_assert_success_ref(who, - "{ 'execute': 'query-dirty-rate' }"); -} - -static void dirtylimit_set_all(QTestState *who, uint64_t dirtyrate) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'set-vcpu-dirty-limit'," - "'arguments': { " - "'dirty-rate': %" PRIu64 " } }", - dirtyrate); -} - -static void cancel_vcpu_dirty_limit(QTestState *who) -{ - qtest_qmp_assert_success(who, - "{ 'execute': 'cancel-vcpu-dirty-limit' }"); -} - -static QDict *query_vcpu_dirty_limit(QTestState *who) -{ - QDict *rsp; - - rsp = qtest_qmp(who, "{ 'execute': 'query-vcpu-dirty-limit' }"); - g_assert(!qdict_haskey(rsp, "error")); - g_assert(qdict_haskey(rsp, "return")); - - return rsp; -} - -static bool calc_dirtyrate_ready(QTestState *who) -{ - QDict *rsp_return; - const char *status; - bool ready; - - rsp_return = query_dirty_rate(who); - g_assert(rsp_return); - - status = qdict_get_str(rsp_return, "status"); - g_assert(status); - ready = g_strcmp0(status, "measuring"); - qobject_unref(rsp_return); - - return ready; -} - -static void wait_for_calc_dirtyrate_complete(QTestState *who, - int64_t time_s) -{ - int max_try_count = 10000; - usleep(time_s * 1000000); - - while (!calc_dirtyrate_ready(who) && max_try_count--) { - usleep(1000); - } - - /* - * Set the timeout with 10 s(max_try_count * 1000us), - * if dirtyrate measurement not complete, fail test. - */ - g_assert_cmpint(max_try_count, !=, 0); -} - -static int64_t get_dirty_rate(QTestState *who) -{ - QDict *rsp_return; - const char *status; - QList *rates; - const QListEntry *entry; - QDict *rate; - int64_t dirtyrate; - - rsp_return = query_dirty_rate(who); - g_assert(rsp_return); - - status = qdict_get_str(rsp_return, "status"); - g_assert(status); - g_assert_cmpstr(status, ==, "measured"); - - rates = qdict_get_qlist(rsp_return, "vcpu-dirty-rate"); - g_assert(rates && !qlist_empty(rates)); - - entry = qlist_first(rates); - g_assert(entry); - - rate = qobject_to(QDict, qlist_entry_obj(entry)); - g_assert(rate); - - dirtyrate = qdict_get_try_int(rate, "dirty-rate", -1); - - qobject_unref(rsp_return); - return dirtyrate; -} - -static int64_t get_limit_rate(QTestState *who) -{ - QDict *rsp_return; - QList *rates; - const QListEntry *entry; - QDict *rate; - int64_t dirtyrate; - - rsp_return = query_vcpu_dirty_limit(who); - g_assert(rsp_return); - - rates = qdict_get_qlist(rsp_return, "return"); - g_assert(rates && !qlist_empty(rates)); - - entry = qlist_first(rates); - g_assert(entry); - - rate = qobject_to(QDict, qlist_entry_obj(entry)); - g_assert(rate); - - dirtyrate = qdict_get_try_int(rate, "limit-rate", -1); - - qobject_unref(rsp_return); - return dirtyrate; -} - -static QTestState *dirtylimit_start_vm(void) -{ - QTestState *vm = NULL; - g_autofree gchar *cmd = NULL; - - bootfile_create(tmpfs, false); - cmd = g_strdup_printf("-accel kvm,dirty-ring-size=4096 " - "-name dirtylimit-test,debug-threads=on " - "-m 150M -smp 1 " - "-serial file:%s/vm_serial " - "-drive file=%s,format=raw ", - tmpfs, bootpath); - - vm = qtest_init(cmd); - return vm; -} - -static void dirtylimit_stop_vm(QTestState *vm) -{ - qtest_quit(vm); - cleanup("vm_serial"); -} - -static void test_vcpu_dirty_limit(void) -{ - QTestState *vm; - int64_t origin_rate; - int64_t quota_rate; - int64_t rate ; - int max_try_count = 20; - int hit = 0; - - /* Start vm for vcpu dirtylimit test */ - vm = dirtylimit_start_vm(); - - /* Wait for the first serial output from the vm*/ - wait_for_serial("vm_serial"); - - /* Do dirtyrate measurement with calc time equals 1s */ - calc_dirty_rate(vm, 1); - - /* Sleep calc time and wait for calc dirtyrate complete */ - wait_for_calc_dirtyrate_complete(vm, 1); - - /* Query original dirty page rate */ - origin_rate = get_dirty_rate(vm); - - /* VM booted from bootsect should dirty memory steadily */ - assert(origin_rate != 0); - - /* Setup quota dirty page rate at half of origin */ - quota_rate = origin_rate / 2; - - /* Set dirtylimit */ - dirtylimit_set_all(vm, quota_rate); - - /* - * Check if set-vcpu-dirty-limit and query-vcpu-dirty-limit - * works literally - */ - g_assert_cmpint(quota_rate, ==, get_limit_rate(vm)); - - /* Sleep a bit to check if it take effect */ - usleep(2000000); - - /* - * Check if dirtylimit take effect realistically, set the - * timeout with 20 s(max_try_count * 1s), if dirtylimit - * doesn't take effect, fail test. - */ - while (--max_try_count) { - calc_dirty_rate(vm, 1); - wait_for_calc_dirtyrate_complete(vm, 1); - rate = get_dirty_rate(vm); - - /* - * Assume hitting if current rate is less - * than quota rate (within accepting error) - */ - if (rate < (quota_rate + DIRTYLIMIT_TOLERANCE_RANGE)) { - hit = 1; - break; - } - } - - g_assert_cmpint(hit, ==, 1); - - hit = 0; - max_try_count = 20; - - /* Check if dirtylimit cancellation take effect */ - cancel_vcpu_dirty_limit(vm); - while (--max_try_count) { - calc_dirty_rate(vm, 1); - wait_for_calc_dirtyrate_complete(vm, 1); - rate = get_dirty_rate(vm); - - /* - * Assume dirtylimit be canceled if current rate is - * greater than quota rate (within accepting error) - */ - if (rate > (quota_rate + DIRTYLIMIT_TOLERANCE_RANGE)) { - hit = 1; - break; - } - } - - g_assert_cmpint(hit, ==, 1); - dirtylimit_stop_vm(vm); -} - -static void migrate_dirty_limit_wait_showup(QTestState *from, - const int64_t period, - const int64_t value) -{ - /* Enable dirty limit capability */ - migrate_set_capability(from, "dirty-limit", true); - - /* Set dirty limit parameters */ - migrate_set_parameter_int(from, "x-vcpu-dirty-limit-period", period); - migrate_set_parameter_int(from, "vcpu-dirty-limit", value); - - /* Make sure migrate can't converge */ - migrate_ensure_non_converge(from); - - /* To check limit rate after precopy */ - migrate_set_capability(from, "pause-before-switchover", true); - - /* Wait for the serial output from the source */ - wait_for_serial("src_serial"); -} - -/* - * This test does: - * source destination - * start vm - * start incoming vm - * migrate - * wait dirty limit to begin - * cancel migrate - * cancellation check - * restart incoming vm - * migrate - * wait dirty limit to begin - * wait pre-switchover event - * convergence condition check - * - * And see if dirty limit migration works correctly. - * This test case involves many passes, so it runs in slow mode only. - */ -static void test_migrate_dirty_limit(void) -{ - g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); - QTestState *from, *to; - int64_t remaining; - uint64_t throttle_us_per_full; - /* - * We want the test to be stable and as fast as possible. - * E.g., with 1Gb/s bandwidth migration may pass without dirty limit, - * so we need to decrease a bandwidth. - */ - const int64_t dirtylimit_period = 1000, dirtylimit_value = 50; - const int64_t max_bandwidth = 400000000; /* ~400Mb/s */ - const int64_t downtime_limit = 250; /* 250ms */ - /* - * We migrate through unix-socket (> 500Mb/s). - * Thus, expected migration speed ~= bandwidth limit (< 500Mb/s). - * So, we can predict expected_threshold - */ - const int64_t expected_threshold = max_bandwidth * downtime_limit / 1000; - int max_try_count = 10; - MigrateCommon args = { - .start = { - .hide_stderr = true, - .use_dirty_ring = true, - }, - .listen_uri = uri, - .connect_uri = uri, - }; - - /* Start src, dst vm */ - if (test_migrate_start(&from, &to, args.listen_uri, &args.start)) { - return; - } - - /* Prepare for dirty limit migration and wait src vm show up */ - migrate_dirty_limit_wait_showup(from, dirtylimit_period, dirtylimit_value); - - /* Start migrate */ - migrate_qmp(from, to, args.connect_uri, NULL, "{}"); - - /* Wait for dirty limit throttle begin */ - throttle_us_per_full = 0; - while (throttle_us_per_full == 0) { - throttle_us_per_full = - read_migrate_property_int(from, - "dirty-limit-throttle-time-per-round"); - usleep(100); - g_assert_false(src_state.stop_seen); - } - - /* Now cancel migrate and wait for dirty limit throttle switch off */ - migrate_cancel(from); - wait_for_migration_status(from, "cancelled", NULL); - - /* Check if dirty limit throttle switched off, set timeout 1ms */ - do { - throttle_us_per_full = - read_migrate_property_int(from, - "dirty-limit-throttle-time-per-round"); - usleep(100); - g_assert_false(src_state.stop_seen); - } while (throttle_us_per_full != 0 && --max_try_count); - - /* Assert dirty limit is not in service */ - g_assert_cmpint(throttle_us_per_full, ==, 0); - - args = (MigrateCommon) { - .start = { - .only_target = true, - .use_dirty_ring = true, - }, - .listen_uri = uri, - .connect_uri = uri, - }; - - /* Restart dst vm, src vm already show up so we needn't wait anymore */ - if (test_migrate_start(&from, &to, args.listen_uri, &args.start)) { - return; - } - - /* Start migrate */ - migrate_qmp(from, to, args.connect_uri, NULL, "{}"); - - /* Wait for dirty limit throttle begin */ - throttle_us_per_full = 0; - while (throttle_us_per_full == 0) { - throttle_us_per_full = - read_migrate_property_int(from, - "dirty-limit-throttle-time-per-round"); - usleep(100); - g_assert_false(src_state.stop_seen); - } - - /* - * The dirty limit rate should equals the return value of - * query-vcpu-dirty-limit if dirty limit cap set - */ - g_assert_cmpint(dirtylimit_value, ==, get_limit_rate(from)); - - /* Now, we have tested if dirty limit works, let it converge */ - migrate_set_parameter_int(from, "downtime-limit", downtime_limit); - migrate_set_parameter_int(from, "max-bandwidth", max_bandwidth); - - /* - * Wait for pre-switchover status to check if migration - * satisfy the convergence condition - */ - wait_for_migration_status(from, "pre-switchover", NULL); - - remaining = read_ram_property_int(from, "remaining"); - g_assert_cmpint(remaining, <, - (expected_threshold + expected_threshold / 100)); - - migrate_continue(from, "pre-switchover"); - - qtest_qmp_eventwait(to, "RESUME"); - - wait_for_serial("dest_serial"); - wait_for_migration_complete(from); - - test_migrate_end(from, to, true); -} - -static bool kvm_dirty_ring_supported(void) -{ -#if defined(__linux__) && defined(HOST_X86_64) - int ret, kvm_fd = open("/dev/kvm", O_RDONLY); - - if (kvm_fd < 0) { - return false; - } - - ret = ioctl(kvm_fd, KVM_CHECK_EXTENSION, KVM_CAP_DIRTY_LOG_RING); - close(kvm_fd); - - /* We test with 4096 slots */ - if (ret < 4096) { - return false; - } - - return true; -#else - return false; -#endif -} int main(int argc, char **argv) { - bool has_kvm, has_tcg; - bool has_uffd, is_x86; - const char *arch; - g_autoptr(GError) err = NULL; - const char *qemu_src = getenv(QEMU_ENV_SRC); - const char *qemu_dst = getenv(QEMU_ENV_DST); + MigrationTestEnv *env; int ret; g_test_init(&argc, &argv, NULL); - - /* - * The default QTEST_QEMU_BINARY must always be provided because - * that is what helpers use to query the accel type and - * architecture. - */ - if (qemu_src && qemu_dst) { - g_test_message("Only one of %s, %s is allowed", - QEMU_ENV_SRC, QEMU_ENV_DST); - exit(1); - } - - has_kvm = qtest_has_accel("kvm"); - has_tcg = qtest_has_accel("tcg"); - - if (!has_tcg && !has_kvm) { - g_test_skip("No KVM or TCG accelerator available"); - return 0; - } - - has_uffd = ufd_version_check(); - arch = qtest_get_arch(); - is_x86 = !strcmp(arch, "i386") || !strcmp(arch, "x86_64"); - - tmpfs = g_dir_make_tmp("migration-test-XXXXXX", &err); - if (!tmpfs) { - g_test_message("Can't create temporary directory in %s: %s", - g_get_tmp_dir(), err->message); - } - g_assert(tmpfs); - + env = migration_get_env(); module_call_init(MODULE_INIT_QOM); - migration_test_add("/migration/bad_dest", test_baddest); -#ifndef _WIN32 - migration_test_add("/migration/analyze-script", test_analyze_script); -#endif - - if (is_x86) { - migration_test_add("/migration/precopy/unix/suspend/live", - test_precopy_unix_suspend_live); - migration_test_add("/migration/precopy/unix/suspend/notlive", - test_precopy_unix_suspend_notlive); - } - - if (has_uffd) { - migration_test_add("/migration/postcopy/plain", test_postcopy); - migration_test_add("/migration/postcopy/recovery/plain", - test_postcopy_recovery); - migration_test_add("/migration/postcopy/preempt/plain", - test_postcopy_preempt); - migration_test_add("/migration/postcopy/preempt/recovery/plain", - test_postcopy_preempt_recovery); - migration_test_add("/migration/postcopy/recovery/double-failures/handshake", - test_postcopy_recovery_fail_handshake); - migration_test_add("/migration/postcopy/recovery/double-failures/reconnect", - test_postcopy_recovery_fail_reconnect); - if (is_x86) { - migration_test_add("/migration/postcopy/suspend", - test_postcopy_suspend); - } - } - - migration_test_add("/migration/precopy/unix/plain", - test_precopy_unix_plain); - if (g_test_slow()) { - migration_test_add("/migration/precopy/unix/xbzrle", - test_precopy_unix_xbzrle); - } - migration_test_add("/migration/precopy/file", - test_precopy_file); - migration_test_add("/migration/precopy/file/offset", - test_precopy_file_offset); -#ifndef _WIN32 - migration_test_add("/migration/precopy/file/offset/fdset", - test_precopy_file_offset_fdset); -#endif - migration_test_add("/migration/precopy/file/offset/bad", - test_precopy_file_offset_bad); - - /* - * Our CI system has problems with shared memory. - * Don't run this test until we find a workaround. - */ - if (getenv("QEMU_TEST_FLAKY_TESTS")) { - migration_test_add("/migration/mode/reboot", test_mode_reboot); - } - - migration_test_add("/migration/precopy/file/mapped-ram", - test_precopy_file_mapped_ram); - migration_test_add("/migration/precopy/file/mapped-ram/live", - test_precopy_file_mapped_ram_live); - - migration_test_add("/migration/multifd/file/mapped-ram", - test_multifd_file_mapped_ram); - migration_test_add("/migration/multifd/file/mapped-ram/live", - test_multifd_file_mapped_ram_live); - - migration_test_add("/migration/multifd/file/mapped-ram/dio", - test_multifd_file_mapped_ram_dio); - -#ifndef _WIN32 - migration_test_add("/migration/multifd/file/mapped-ram/fdset", - test_multifd_file_mapped_ram_fdset); - migration_test_add("/migration/multifd/file/mapped-ram/fdset/dio", - test_multifd_file_mapped_ram_fdset_dio); -#endif - -#ifdef CONFIG_GNUTLS - migration_test_add("/migration/precopy/unix/tls/psk", - test_precopy_unix_tls_psk); - - if (has_uffd) { - /* - * NOTE: psk test is enough for postcopy, as other types of TLS - * channels are tested under precopy. Here what we want to test is the - * general postcopy path that has TLS channel enabled. - */ - migration_test_add("/migration/postcopy/tls/psk", - test_postcopy_tls_psk); - migration_test_add("/migration/postcopy/recovery/tls/psk", - test_postcopy_recovery_tls_psk); - migration_test_add("/migration/postcopy/preempt/tls/psk", - test_postcopy_preempt_tls_psk); - migration_test_add("/migration/postcopy/preempt/recovery/tls/psk", - test_postcopy_preempt_all); - } -#ifdef CONFIG_TASN1 - migration_test_add("/migration/precopy/unix/tls/x509/default-host", - test_precopy_unix_tls_x509_default_host); - migration_test_add("/migration/precopy/unix/tls/x509/override-host", - test_precopy_unix_tls_x509_override_host); -#endif /* CONFIG_TASN1 */ -#endif /* CONFIG_GNUTLS */ - - migration_test_add("/migration/precopy/tcp/plain", test_precopy_tcp_plain); - - migration_test_add("/migration/precopy/tcp/plain/switchover-ack", - test_precopy_tcp_switchover_ack); - -#ifdef CONFIG_GNUTLS - migration_test_add("/migration/precopy/tcp/tls/psk/match", - test_precopy_tcp_tls_psk_match); - migration_test_add("/migration/precopy/tcp/tls/psk/mismatch", - test_precopy_tcp_tls_psk_mismatch); -#ifdef CONFIG_TASN1 - migration_test_add("/migration/precopy/tcp/tls/x509/default-host", - test_precopy_tcp_tls_x509_default_host); - migration_test_add("/migration/precopy/tcp/tls/x509/override-host", - test_precopy_tcp_tls_x509_override_host); - migration_test_add("/migration/precopy/tcp/tls/x509/mismatch-host", - test_precopy_tcp_tls_x509_mismatch_host); - migration_test_add("/migration/precopy/tcp/tls/x509/friendly-client", - test_precopy_tcp_tls_x509_friendly_client); - migration_test_add("/migration/precopy/tcp/tls/x509/hostile-client", - test_precopy_tcp_tls_x509_hostile_client); - migration_test_add("/migration/precopy/tcp/tls/x509/allow-anon-client", - test_precopy_tcp_tls_x509_allow_anon_client); - migration_test_add("/migration/precopy/tcp/tls/x509/reject-anon-client", - test_precopy_tcp_tls_x509_reject_anon_client); -#endif /* CONFIG_TASN1 */ -#endif /* CONFIG_GNUTLS */ - - /* migration_test_add("/migration/ignore_shared", test_ignore_shared); */ -#ifndef _WIN32 - migration_test_add("/migration/precopy/fd/tcp", - test_migrate_precopy_fd_socket); - migration_test_add("/migration/precopy/fd/file", - test_migrate_precopy_fd_file); -#endif - migration_test_add("/migration/validate_uuid", test_validate_uuid); - migration_test_add("/migration/validate_uuid_error", - test_validate_uuid_error); - migration_test_add("/migration/validate_uuid_src_not_set", - test_validate_uuid_src_not_set); - migration_test_add("/migration/validate_uuid_dst_not_set", - test_validate_uuid_dst_not_set); - migration_test_add("/migration/validate_uri/channels/both_set", - test_validate_uri_channels_both_set); - migration_test_add("/migration/validate_uri/channels/none_set", - test_validate_uri_channels_none_set); - /* - * See explanation why this test is slow on function definition - */ - if (g_test_slow()) { - migration_test_add("/migration/auto_converge", - test_migrate_auto_converge); - if (g_str_equal(arch, "x86_64") && - has_kvm && kvm_dirty_ring_supported()) { - migration_test_add("/migration/dirty_limit", - test_migrate_dirty_limit); - } - } - migration_test_add("/migration/multifd/tcp/uri/plain/none", - test_multifd_tcp_uri_none); - migration_test_add("/migration/multifd/tcp/channels/plain/none", - test_multifd_tcp_channels_none); - migration_test_add("/migration/multifd/tcp/plain/zero-page/legacy", - test_multifd_tcp_zero_page_legacy); - migration_test_add("/migration/multifd/tcp/plain/zero-page/none", - test_multifd_tcp_no_zero_page); - migration_test_add("/migration/multifd/tcp/plain/cancel", - test_multifd_tcp_cancel); - migration_test_add("/migration/multifd/tcp/plain/zlib", - test_multifd_tcp_zlib); -#ifdef CONFIG_ZSTD - migration_test_add("/migration/multifd/tcp/plain/zstd", - test_multifd_tcp_zstd); -#endif -#ifdef CONFIG_QATZIP - migration_test_add("/migration/multifd/tcp/plain/qatzip", - test_multifd_tcp_qatzip); -#endif -#ifdef CONFIG_QPL - migration_test_add("/migration/multifd/tcp/plain/qpl", - test_multifd_tcp_qpl); -#endif -#ifdef CONFIG_UADK - migration_test_add("/migration/multifd/tcp/plain/uadk", - test_multifd_tcp_uadk); -#endif -#ifdef CONFIG_GNUTLS - migration_test_add("/migration/multifd/tcp/tls/psk/match", - test_multifd_tcp_tls_psk_match); - migration_test_add("/migration/multifd/tcp/tls/psk/mismatch", - test_multifd_tcp_tls_psk_mismatch); -#ifdef CONFIG_TASN1 - migration_test_add("/migration/multifd/tcp/tls/x509/default-host", - test_multifd_tcp_tls_x509_default_host); - migration_test_add("/migration/multifd/tcp/tls/x509/override-host", - test_multifd_tcp_tls_x509_override_host); - migration_test_add("/migration/multifd/tcp/tls/x509/mismatch-host", - test_multifd_tcp_tls_x509_mismatch_host); - migration_test_add("/migration/multifd/tcp/tls/x509/allow-anon-client", - test_multifd_tcp_tls_x509_allow_anon_client); - migration_test_add("/migration/multifd/tcp/tls/x509/reject-anon-client", - test_multifd_tcp_tls_x509_reject_anon_client); -#endif /* CONFIG_TASN1 */ -#endif /* CONFIG_GNUTLS */ - - if (g_str_equal(arch, "x86_64") && has_kvm && kvm_dirty_ring_supported()) { - migration_test_add("/migration/dirty_ring", - test_precopy_unix_dirty_ring); - if (qtest_has_machine("pc") && g_test_slow()) { - migration_test_add("/migration/vcpu_dirty_limit", - test_vcpu_dirty_limit); - } - } + migration_test_add_tls(env); + migration_test_add_compression(env); + migration_test_add_postcopy(env); + migration_test_add_file(env); + migration_test_add_precopy(env); + migration_test_add_cpr(env); + migration_test_add_misc(env); ret = g_test_run(); g_assert_cmpint(ret, ==, 0); - bootfile_delete(); - ret = rmdir(tmpfs); - if (ret != 0) { - g_test_message("unable to rmdir: path (%s): %s", - tmpfs, strerror(errno)); - } - g_free(tmpfs); + ret = migration_env_clean(env); return ret; } |