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authorThomas Huth <thuth@redhat.com>2019-09-09 12:04:01 +0200
committerThomas Huth <thuth@redhat.com>2020-01-12 11:42:41 +0100
commit1e8a1fae7464ef79c9e50aa0f807d2c511be3c8e (patch)
tree80d1a4f0454b9a75c09461e69f969213350540ea /tests/migration-test.c
parent10ae5b303a0de07f0659a2c90d9c1266b3908b97 (diff)
test: Move qtests to a separate directory
The tests directory itself is pretty overcrowded, and it's hard to see which test belongs to which test subsystem (unit, qtest, ...). Let's move the qtests to a separate folder for more clarity. Message-Id: <20191218103059.11729-6-thuth@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'tests/migration-test.c')
-rw-r--r--tests/migration-test.c1281
1 files changed, 0 insertions, 1281 deletions
diff --git a/tests/migration-test.c b/tests/migration-test.c
deleted file mode 100644
index 53afec4395..0000000000
--- a/tests/migration-test.c
+++ /dev/null
@@ -1,1281 +0,0 @@
-/*
- * QTest testcase for migration
- *
- * Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
- * based on the vhost-user-test.c that is:
- * Copyright (c) 2014 Virtual Open Systems Sarl.
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-
-#include "libqtest.h"
-#include "qapi/qmp/qdict.h"
-#include "qemu/module.h"
-#include "qemu/option.h"
-#include "qemu/range.h"
-#include "qemu/sockets.h"
-#include "chardev/char.h"
-#include "qapi/qapi-visit-sockets.h"
-#include "qapi/qobject-input-visitor.h"
-#include "qapi/qobject-output-visitor.h"
-
-#include "migration-helpers.h"
-#include "migration/migration-test.h"
-
-/* TODO actually test the results and get rid of this */
-#define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__))
-
-unsigned start_address;
-unsigned end_address;
-static bool uffd_feature_thread_id;
-
-#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 <linux/userfaultfd.h>
-
-static bool ufd_version_check(void)
-{
- struct uffdio_api api_struct;
- uint64_t ioctl_mask;
-
- int ufd = syscall(__NR_userfaultfd, 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 = (__u64)1 << _UFFDIO_REGISTER |
- (__u64)1 << _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 const char *tmpfs;
-
-/* 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/s390x/a-b-bios.h"
-
-static void init_bootfile(const char *bootpath, void *content, size_t len)
-{
- 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.
- */
-static void wait_for_serial(const char *side)
-{
- char *serialpath = g_strdup_printf("%s/%s", tmpfs, side);
- FILE *serialfile = fopen(serialpath, "r");
- const char *arch = qtest_get_arch();
- int started = (strcmp(side, "src_serial") == 0 &&
- strcmp(arch, "ppc64") == 0) ? 0 : 1;
-
- g_free(serialpath);
- do {
- int readvalue = fgetc(serialfile);
-
- if (!started) {
- /* SLOF prints its banner before starting test,
- * to ignore it, mark the start of the test with '_',
- * ignore all characters until this marker
- */
- switch (readvalue) {
- case '_':
- started = 1;
- break;
- case EOF:
- fseek(serialfile, 0, SEEK_SET);
- usleep(1000);
- break;
- }
- continue;
- }
- switch (readvalue) {
- case 'A':
- /* Fine */
- break;
-
- case 'B':
- /* It's alive! */
- fclose(serialfile);
- return;
-
- case EOF:
- started = (strcmp(side, "src_serial") == 0 &&
- strcmp(arch, "ppc64") == 0) ? 0 : 1;
- 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);
-}
-
-/*
- * 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(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(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(who);
- g_assert(qdict_haskey(rsp_return, "postcopy-blocktime"));
- qobject_unref(rsp_return);
-}
-
-static void wait_for_migration_pass(QTestState *who)
-{
- uint64_t initial_pass = get_migration_pass(who);
- uint64_t pass;
-
- /* Wait for the 1st sync */
- while (!got_stop && !initial_pass) {
- usleep(1000);
- initial_pass = get_migration_pass(who);
- }
-
- do {
- usleep(1000);
- pass = get_migration_pass(who);
- } while (pass == initial_pass && !got_stop);
-}
-
-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)
-{
- char *path = g_strdup_printf("%s/%s", tmpfs, filename);
-
- unlink(path);
- g_free(path);
-}
-
-static char *SocketAddress_to_str(SocketAddress *addr)
-{
- switch (addr->type) {
- case SOCKET_ADDRESS_TYPE_INET:
- return g_strdup_printf("tcp:%s:%s",
- addr->u.inet.host,
- addr->u.inet.port);
- case SOCKET_ADDRESS_TYPE_UNIX:
- return g_strdup_printf("unix:%s",
- addr->u.q_unix.path);
- case SOCKET_ADDRESS_TYPE_FD:
- return g_strdup_printf("fd:%s", addr->u.fd.str);
- case SOCKET_ADDRESS_TYPE_VSOCK:
- return g_strdup_printf("tcp:%s:%s",
- addr->u.vsock.cid,
- addr->u.vsock.port);
- default:
- return g_strdup("unknown address type");
- }
-}
-
-static char *migrate_get_socket_address(QTestState *who, const char *parameter)
-{
- QDict *rsp;
- char *result;
- Error *local_err = NULL;
- SocketAddressList *addrs;
- Visitor *iv = NULL;
- QObject *object;
-
- rsp = migrate_query(who);
- object = qdict_get(rsp, parameter);
-
- iv = qobject_input_visitor_new(object);
- visit_type_SocketAddressList(iv, NULL, &addrs, &local_err);
- visit_free(iv);
-
- /* we are only using a single address */
- result = SocketAddress_to_str(addrs->value);
-
- qapi_free_SocketAddressList(addrs);
- qobject_unref(rsp);
- return result;
-}
-
-static long long migrate_get_parameter_int(QTestState *who,
- const char *parameter)
-{
- QDict *rsp;
- long long result;
-
- rsp = wait_command(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)
-{
- QDict *rsp;
-
- rsp = qtest_qmp(who,
- "{ 'execute': 'migrate-set-parameters',"
- "'arguments': { %s: %lld } }",
- parameter, value);
- g_assert(qdict_haskey(rsp, "return"));
- qobject_unref(rsp);
- migrate_check_parameter_int(who, parameter, value);
-}
-
-static void migrate_pause(QTestState *who)
-{
- QDict *rsp;
-
- rsp = wait_command(who, "{ 'execute': 'migrate-pause' }");
- qobject_unref(rsp);
-}
-
-static void migrate_continue(QTestState *who, const char *state)
-{
- QDict *rsp;
-
- rsp = wait_command(who,
- "{ 'execute': 'migrate-continue',"
- " 'arguments': { 'state': %s } }",
- state);
- qobject_unref(rsp);
-}
-
-static void migrate_recover(QTestState *who, const char *uri)
-{
- QDict *rsp;
-
- rsp = wait_command(who,
- "{ 'execute': 'migrate-recover', "
- " 'id': 'recover-cmd', "
- " 'arguments': { 'uri': %s } }",
- uri);
- qobject_unref(rsp);
-}
-
-static void migrate_set_capability(QTestState *who, const char *capability,
- bool value)
-{
- QDict *rsp;
-
- rsp = qtest_qmp(who,
- "{ 'execute': 'migrate-set-capabilities',"
- "'arguments': { "
- "'capabilities': [ { "
- "'capability': %s, 'state': %i } ] } }",
- capability, value);
- g_assert(qdict_haskey(rsp, "return"));
- qobject_unref(rsp);
-}
-
-static void migrate_postcopy_start(QTestState *from, QTestState *to)
-{
- QDict *rsp;
-
- rsp = wait_command(from, "{ 'execute': 'migrate-start-postcopy' }");
- qobject_unref(rsp);
-
- if (!got_stop) {
- qtest_qmp_eventwait(from, "STOP");
- }
-
- qtest_qmp_eventwait(to, "RESUME");
-}
-
-typedef struct {
- bool hide_stderr;
- bool use_shmem;
- char *opts_source;
- char *opts_target;
-} MigrateStart;
-
-static MigrateStart *migrate_start_new(void)
-{
- MigrateStart *args = g_new0(MigrateStart, 1);
-
- args->opts_source = g_strdup("");
- args->opts_target = g_strdup("");
- return args;
-}
-
-static void migrate_start_destroy(MigrateStart *args)
-{
- g_free(args->opts_source);
- g_free(args->opts_target);
- g_free(args);
-}
-
-static int test_migrate_start(QTestState **from, QTestState **to,
- const char *uri, MigrateStart *args)
-{
- gchar *arch_source, *arch_target;
- gchar *cmd_source, *cmd_target;
- const gchar *ignore_stderr;
- char *bootpath = NULL;
- char *shmem_opts;
- char *shmem_path;
- const char *arch = qtest_get_arch();
- const char *machine_opts = NULL;
- const char *memory_size;
-
- 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;
- }
- }
-
- got_stop = false;
- bootpath = g_strdup_printf("%s/bootsect", tmpfs);
- if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
- /* the assembled x86 boot sector should be exactly one sector large */
- assert(sizeof(x86_bootsect) == 512);
- init_bootfile(bootpath, x86_bootsect, sizeof(x86_bootsect));
- memory_size = "150M";
- arch_source = g_strdup_printf("-drive file=%s,format=raw", bootpath);
- arch_target = g_strdup(arch_source);
- start_address = X86_TEST_MEM_START;
- end_address = X86_TEST_MEM_END;
- } else if (g_str_equal(arch, "s390x")) {
- init_bootfile(bootpath, s390x_elf, sizeof(s390x_elf));
- memory_size = "128M";
- arch_source = g_strdup_printf("-bios %s", bootpath);
- arch_target = g_strdup(arch_source);
- start_address = S390_TEST_MEM_START;
- end_address = S390_TEST_MEM_END;
- } else if (strcmp(arch, "ppc64") == 0) {
- machine_opts = "vsmt=8";
- memory_size = "256M";
- arch_source = g_strdup_printf("-nodefaults "
- "-prom-env 'use-nvramrc?=true' -prom-env "
- "'nvramrc=hex .\" _\" begin %x %x "
- "do i c@ 1 + i c! 1000 +loop .\" B\" 0 "
- "until'", end_address, start_address);
- arch_target = g_strdup("");
- start_address = PPC_TEST_MEM_START;
- end_address = PPC_TEST_MEM_END;
- } else if (strcmp(arch, "aarch64") == 0) {
- init_bootfile(bootpath, aarch64_kernel, sizeof(aarch64_kernel));
- machine_opts = "virt,gic-version=max";
- memory_size = "150M";
- arch_source = g_strdup_printf("-cpu max "
- "-kernel %s",
- bootpath);
- arch_target = g_strdup(arch_source);
- start_address = ARM_TEST_MEM_START;
- end_address = ARM_TEST_MEM_END;
-
- g_assert(sizeof(aarch64_kernel) <= ARM_TEST_MAX_KERNEL_SIZE);
- } else {
- g_assert_not_reached();
- }
-
- g_free(bootpath);
-
- if (args->hide_stderr) {
- ignore_stderr = "2>/dev/null";
- } 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);
- } else {
- shmem_path = NULL;
- shmem_opts = g_strdup("");
- }
-
- cmd_source = g_strdup_printf("-accel kvm -accel tcg%s%s "
- "-name source,debug-threads=on "
- "-m %s "
- "-serial file:%s/src_serial "
- "%s %s %s %s",
- machine_opts ? " -machine " : "",
- machine_opts ? machine_opts : "",
- memory_size, tmpfs,
- arch_source, shmem_opts, args->opts_source,
- ignore_stderr);
- g_free(arch_source);
- *from = qtest_init(cmd_source);
- g_free(cmd_source);
-
- cmd_target = g_strdup_printf("-accel kvm -accel tcg%s%s "
- "-name target,debug-threads=on "
- "-m %s "
- "-serial file:%s/dest_serial "
- "-incoming %s "
- "%s %s %s %s",
- machine_opts ? " -machine " : "",
- machine_opts ? machine_opts : "",
- memory_size, tmpfs, uri,
- arch_target, shmem_opts,
- args->opts_target, ignore_stderr);
- g_free(arch_target);
- *to = qtest_init(cmd_target);
- g_free(cmd_target);
-
- g_free(shmem_opts);
- /*
- * Remove shmem file immediately to avoid memory leak in test failed case.
- * It's valid becase QEMU has already opened this file
- */
- if (args->use_shmem) {
- unlink(shmem_path);
- g_free(shmem_path);
- }
-
- migrate_start_destroy(args);
- 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_discard_response(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("bootsect");
- cleanup("migsocket");
- cleanup("src_serial");
- cleanup("dest_serial");
-}
-
-static void deprecated_set_downtime(QTestState *who, const double value)
-{
- QDict *rsp;
-
- rsp = qtest_qmp(who,
- "{ 'execute': 'migrate_set_downtime',"
- " 'arguments': { 'value': %f } }", value);
- g_assert(qdict_haskey(rsp, "return"));
- qobject_unref(rsp);
- migrate_check_parameter_int(who, "downtime-limit", value * 1000);
-}
-
-static void deprecated_set_speed(QTestState *who, long long value)
-{
- QDict *rsp;
-
- rsp = qtest_qmp(who, "{ 'execute': 'migrate_set_speed',"
- "'arguments': { 'value': %lld } }", value);
- g_assert(qdict_haskey(rsp, "return"));
- qobject_unref(rsp);
- migrate_check_parameter_int(who, "max-bandwidth", value);
-}
-
-static void deprecated_set_cache_size(QTestState *who, long long value)
-{
- QDict *rsp;
-
- rsp = qtest_qmp(who, "{ 'execute': 'migrate-set-cache-size',"
- "'arguments': { 'value': %lld } }", value);
- g_assert(qdict_haskey(rsp, "return"));
- qobject_unref(rsp);
- migrate_check_parameter_int(who, "xbzrle-cache-size", value);
-}
-
-static void test_deprecated(void)
-{
- QTestState *from;
-
- from = qtest_init("-machine none");
-
- deprecated_set_downtime(from, 0.12345);
- deprecated_set_speed(from, 12345);
- deprecated_set_cache_size(from, 4096);
-
- qtest_quit(from);
-}
-
-static int migrate_postcopy_prepare(QTestState **from_ptr,
- QTestState **to_ptr,
- MigrateStart *args)
-{
- char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
- QTestState *from, *to;
-
- if (test_migrate_start(&from, &to, uri, args)) {
- return -1;
- }
-
- migrate_set_capability(from, "postcopy-ram", true);
- migrate_set_capability(to, "postcopy-ram", true);
- migrate_set_capability(to, "postcopy-blocktime", true);
-
- /* We want to pick a speed slow enough that the test completes
- * quickly, but that it doesn't complete precopy even on a slow
- * machine, so also set the downtime.
- */
- migrate_set_parameter_int(from, "max-bandwidth", 30000000);
- migrate_set_parameter_int(from, "downtime-limit", 1);
-
- /* Wait for the first serial output from the source */
- wait_for_serial("src_serial");
-
- migrate_qmp(from, uri, "{}");
- g_free(uri);
-
- wait_for_migration_pass(from);
-
- *from_ptr = from;
- *to_ptr = to;
-
- return 0;
-}
-
-static void migrate_postcopy_complete(QTestState *from, QTestState *to)
-{
- wait_for_migration_complete(from);
-
- /* Make sure we get at least one "B" on destination */
- wait_for_serial("dest_serial");
-
- if (uffd_feature_thread_id) {
- read_blocktime(to);
- }
-
- test_migrate_end(from, to, true);
-}
-
-static void test_postcopy(void)
-{
- MigrateStart *args = migrate_start_new();
- QTestState *from, *to;
-
- if (migrate_postcopy_prepare(&from, &to, args)) {
- return;
- }
- migrate_postcopy_start(from, to);
- migrate_postcopy_complete(from, to);
-}
-
-static void test_postcopy_recovery(void)
-{
- MigrateStart *args = migrate_start_new();
- QTestState *from, *to;
- char *uri;
-
- args->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_migration_status(to, "postcopy-paused",
- (const char * []) { "failed", "active",
- "completed", NULL });
-
- /*
- * 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
- */
- wait_for_migration_status(from, "postcopy-paused",
- (const char * []) { "failed", "active",
- "completed", NULL });
- migrate_qmp(from, uri, "{'resume': true}");
- g_free(uri);
-
- /* Restore the postcopy bandwidth to unlimited */
- migrate_set_parameter_int(from, "max-postcopy-bandwidth", 0);
-
- migrate_postcopy_complete(from, to);
-}
-
-static void test_baddest(void)
-{
- MigrateStart *args = migrate_start_new();
- QTestState *from, *to;
-
- args->hide_stderr = true;
-
- if (test_migrate_start(&from, &to, "tcp:0:0", args)) {
- return;
- }
- migrate_qmp(from, "tcp:0:0", "{}");
- wait_for_migration_fail(from, false);
- test_migrate_end(from, to, false);
-}
-
-static void test_precopy_unix(void)
-{
- char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
- MigrateStart *args = migrate_start_new();
- QTestState *from, *to;
-
- if (test_migrate_start(&from, &to, uri, args)) {
- return;
- }
-
- /* We want to pick a speed slow enough that the test completes
- * quickly, but that it doesn't complete precopy even on a slow
- * machine, so also set the downtime.
- */
- /* 1 ms should make it not converge*/
- migrate_set_parameter_int(from, "downtime-limit", 1);
- /* 1GB/s */
- migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
-
- /* Wait for the first serial output from the source */
- wait_for_serial("src_serial");
-
- migrate_qmp(from, uri, "{}");
-
- wait_for_migration_pass(from);
-
- /* 300 ms should converge */
- migrate_set_parameter_int(from, "downtime-limit", 300);
-
- if (!got_stop) {
- qtest_qmp_eventwait(from, "STOP");
- }
-
- qtest_qmp_eventwait(to, "RESUME");
-
- wait_for_serial("dest_serial");
- wait_for_migration_complete(from);
-
- test_migrate_end(from, to, true);
- g_free(uri);
-}
-
-#if 0
-/* Currently upset on aarch64 TCG */
-static void test_ignore_shared(void)
-{
- 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_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, uri, "{}");
-
- wait_for_migration_pass(from);
-
- if (!got_stop) {
- qtest_qmp_eventwait(from, "STOP");
- }
-
- 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);
- g_free(uri);
-}
-#endif
-
-static void test_xbzrle(const char *uri)
-{
- MigrateStart *args = migrate_start_new();
- QTestState *from, *to;
-
- if (test_migrate_start(&from, &to, uri, args)) {
- return;
- }
-
- /*
- * We want to pick a speed slow enough that the test completes
- * quickly, but that it doesn't complete precopy even on a slow
- * machine, so also set the downtime.
- */
- /* 1 ms should make it not converge*/
- migrate_set_parameter_int(from, "downtime-limit", 1);
- /* 1GB/s */
- migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
-
- migrate_set_parameter_int(from, "xbzrle-cache-size", 33554432);
-
- migrate_set_capability(from, "xbzrle", "true");
- migrate_set_capability(to, "xbzrle", "true");
- /* Wait for the first serial output from the source */
- wait_for_serial("src_serial");
-
- migrate_qmp(from, uri, "{}");
-
- wait_for_migration_pass(from);
-
- /* 300ms should converge */
- migrate_set_parameter_int(from, "downtime-limit", 300);
-
- if (!got_stop) {
- qtest_qmp_eventwait(from, "STOP");
- }
- qtest_qmp_eventwait(to, "RESUME");
-
- wait_for_serial("dest_serial");
- wait_for_migration_complete(from);
-
- test_migrate_end(from, to, true);
-}
-
-static void test_xbzrle_unix(void)
-{
- char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
-
- test_xbzrle(uri);
- g_free(uri);
-}
-
-static void test_precopy_tcp(void)
-{
- MigrateStart *args = migrate_start_new();
- char *uri;
- QTestState *from, *to;
-
- if (test_migrate_start(&from, &to, "tcp:127.0.0.1:0", args)) {
- return;
- }
-
- /*
- * We want to pick a speed slow enough that the test completes
- * quickly, but that it doesn't complete precopy even on a slow
- * machine, so also set the downtime.
- */
- /* 1 ms should make it not converge*/
- migrate_set_parameter_int(from, "downtime-limit", 1);
- /* 1GB/s */
- migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
-
- /* Wait for the first serial output from the source */
- wait_for_serial("src_serial");
-
- uri = migrate_get_socket_address(to, "socket-address");
-
- migrate_qmp(from, uri, "{}");
-
- wait_for_migration_pass(from);
-
- /* 300ms should converge */
- migrate_set_parameter_int(from, "downtime-limit", 300);
-
- if (!got_stop) {
- qtest_qmp_eventwait(from, "STOP");
- }
- qtest_qmp_eventwait(to, "RESUME");
-
- wait_for_serial("dest_serial");
- wait_for_migration_complete(from);
-
- test_migrate_end(from, to, true);
- g_free(uri);
-}
-
-static void test_migrate_fd_proto(void)
-{
- MigrateStart *args = migrate_start_new();
- QTestState *from, *to;
- int ret;
- int pair[2];
- QDict *rsp;
- const char *error_desc;
-
- if (test_migrate_start(&from, &to, "defer", args)) {
- return;
- }
-
- /*
- * We want to pick a speed slow enough that the test completes
- * quickly, but that it doesn't complete precopy even on a slow
- * machine, so also set the downtime.
- */
- /* 1 ms should make it not converge */
- migrate_set_parameter_int(from, "downtime-limit", 1);
- /* 1GB/s */
- migrate_set_parameter_int(from, "max-bandwidth", 1000000000);
-
- /* Wait for the first serial output from the source */
- wait_for_serial("src_serial");
-
- /* Create two connected sockets for migration */
- ret = socketpair(PF_LOCAL, SOCK_STREAM, 0, pair);
- g_assert_cmpint(ret, ==, 0);
-
- /* Send the 1st socket to the target */
- rsp = wait_command_fd(to, pair[0],
- "{ 'execute': 'getfd',"
- " 'arguments': { 'fdname': 'fd-mig' }}");
- qobject_unref(rsp);
- close(pair[0]);
-
- /* Start incoming migration from the 1st socket */
- rsp = wait_command(to, "{ 'execute': 'migrate-incoming',"
- " 'arguments': { 'uri': 'fd:fd-mig' }}");
- qobject_unref(rsp);
-
- /* Send the 2nd socket to the target */
- rsp = wait_command_fd(from, pair[1],
- "{ 'execute': 'getfd',"
- " 'arguments': { 'fdname': 'fd-mig' }}");
- qobject_unref(rsp);
- close(pair[1]);
-
- /* Start migration to the 2nd socket*/
- migrate_qmp(from, "fd:fd-mig", "{}");
-
- wait_for_migration_pass(from);
-
- /* 300ms should converge */
- migrate_set_parameter_int(from, "downtime-limit", 300);
-
- if (!got_stop) {
- qtest_qmp_eventwait(from, "STOP");
- }
- qtest_qmp_eventwait(to, "RESUME");
-
- /* 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);
-
- /* Complete migration */
- wait_for_serial("dest_serial");
- wait_for_migration_complete(from);
- test_migrate_end(from, to, true);
-}
-
-static void do_test_validate_uuid(MigrateStart *args, bool should_fail)
-{
- 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, uri, "{}");
-
- if (should_fail) {
- qtest_set_expected_status(to, 1);
- wait_for_migration_fail(from, true);
- } else {
- wait_for_migration_complete(from);
- }
-
- test_migrate_end(from, to, false);
- g_free(uri);
-}
-
-static void test_validate_uuid(void)
-{
- MigrateStart *args = migrate_start_new();
-
- args->opts_source = g_strdup("-uuid 11111111-1111-1111-1111-111111111111");
- args->opts_target = g_strdup("-uuid 11111111-1111-1111-1111-111111111111");
- do_test_validate_uuid(args, false);
-}
-
-static void test_validate_uuid_error(void)
-{
- MigrateStart *args = migrate_start_new();
-
- args->opts_source = g_strdup("-uuid 11111111-1111-1111-1111-111111111111");
- args->opts_target = g_strdup("-uuid 22222222-2222-2222-2222-222222222222");
- args->hide_stderr = true;
- do_test_validate_uuid(args, true);
-}
-
-static void test_validate_uuid_src_not_set(void)
-{
- MigrateStart *args = migrate_start_new();
-
- args->opts_target = g_strdup("-uuid 22222222-2222-2222-2222-222222222222");
- args->hide_stderr = true;
- do_test_validate_uuid(args, false);
-}
-
-static void test_validate_uuid_dst_not_set(void)
-{
- MigrateStart *args = migrate_start_new();
-
- args->opts_source = g_strdup("-uuid 11111111-1111-1111-1111-111111111111");
- args->hide_stderr = true;
- do_test_validate_uuid(args, false);
-}
-
-static void test_migrate_auto_converge(void)
-{
- char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
- MigrateStart *args = migrate_start_new();
- QTestState *from, *to;
- int64_t remaining, percentage;
-
- /*
- * We want the test to be stable and as fast as possible.
- * E.g., with 1Gb/s bandwith migration may pass without throttling,
- * so we need to decrease a bandwidth.
- */
- const int64_t init_pct = 5, inc_pct = 50, max_pct = 95;
- 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;
-
- 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_set_parameter_int(from, "downtime-limit", 1);
- migrate_set_parameter_int(from, "max-bandwidth", 100000000); /* ~100Mb/s */
-
- /* 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, uri, "{}");
-
- /* Wait for throttling begins */
- percentage = 0;
- while (percentage == 0) {
- percentage = read_migrate_property_int(from, "cpu-throttle-percentage");
- usleep(100);
- g_assert_false(got_stop);
- }
- /* The first percentage of throttling should be equal to init_pct */
- g_assert_cmpint(percentage, ==, init_pct);
- /* Now, when we tested that throttling 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 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);
-
- remaining = read_ram_property_int(from, "remaining");
- g_assert_cmpint(remaining, <, expected_threshold);
-
- migrate_continue(from, "pre-switchover");
-
- qtest_qmp_eventwait(to, "RESUME");
-
- wait_for_serial("dest_serial");
- wait_for_migration_complete(from);
-
- g_free(uri);
-
- test_migrate_end(from, to, true);
-}
-
-int main(int argc, char **argv)
-{
- char template[] = "/tmp/migration-test-XXXXXX";
- int ret;
-
- g_test_init(&argc, &argv, NULL);
-
- if (!ufd_version_check()) {
- return g_test_run();
- }
-
- /*
- * On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG
- * is touchy due to race conditions on dirty bits (especially on PPC for
- * some reason)
- */
- if (g_str_equal(qtest_get_arch(), "ppc64") &&
- (access("/sys/module/kvm_hv", F_OK) ||
- access("/dev/kvm", R_OK | W_OK))) {
- g_test_message("Skipping test: kvm_hv not available");
- return g_test_run();
- }
-
- /*
- * Similar to ppc64, s390x seems to be touchy with TCG, so disable it
- * there until the problems are resolved
- */
- if (g_str_equal(qtest_get_arch(), "s390x")) {
-#if defined(HOST_S390X)
- if (access("/dev/kvm", R_OK | W_OK)) {
- g_test_message("Skipping test: kvm not available");
- return g_test_run();
- }
-#else
- g_test_message("Skipping test: Need s390x host to work properly");
- return g_test_run();
-#endif
- }
-
- tmpfs = mkdtemp(template);
- if (!tmpfs) {
- g_test_message("mkdtemp on path (%s): %s", template, strerror(errno));
- }
- g_assert(tmpfs);
-
- module_call_init(MODULE_INIT_QOM);
-
- qtest_add_func("/migration/postcopy/unix", test_postcopy);
- qtest_add_func("/migration/postcopy/recovery", test_postcopy_recovery);
- qtest_add_func("/migration/deprecated", test_deprecated);
- qtest_add_func("/migration/bad_dest", test_baddest);
- qtest_add_func("/migration/precopy/unix", test_precopy_unix);
- qtest_add_func("/migration/precopy/tcp", test_precopy_tcp);
- /* qtest_add_func("/migration/ignore_shared", test_ignore_shared); */
- qtest_add_func("/migration/xbzrle/unix", test_xbzrle_unix);
- qtest_add_func("/migration/fd_proto", test_migrate_fd_proto);
- qtest_add_func("/migration/validate_uuid", test_validate_uuid);
- qtest_add_func("/migration/validate_uuid_error", test_validate_uuid_error);
- qtest_add_func("/migration/validate_uuid_src_not_set",
- test_validate_uuid_src_not_set);
- qtest_add_func("/migration/validate_uuid_dst_not_set",
- test_validate_uuid_dst_not_set);
-
- qtest_add_func("/migration/auto_converge", test_migrate_auto_converge);
-
- ret = g_test_run();
-
- g_assert_cmpint(ret, ==, 0);
-
- ret = rmdir(tmpfs);
- if (ret != 0) {
- g_test_message("unable to rmdir: path (%s): %s",
- tmpfs, strerror(errno));
- }
-
- return ret;
-}
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-14 07:46:34 +0000