2 * QTest testcase for migration
4 * Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
5 * based on the vhost-user-test.c that is:
6 * Copyright (c) 2014 Virtual Open Systems Sarl.
8 * This work is licensed under the terms of the GNU GPL, version 2 or later.
9 * See the COPYING file in the top-level directory.
13 #include "qemu/osdep.h"
16 #include "qapi/qmp/qdict.h"
17 #include "qapi/qmp/qjson.h"
18 #include "qemu/module.h"
19 #include "qemu/option.h"
20 #include "qemu/range.h"
21 #include "qemu/sockets.h"
22 #include "chardev/char.h"
23 #include "sysemu/sysemu.h"
24 #include "qapi/qapi-visit-sockets.h"
25 #include "qapi/qobject-input-visitor.h"
26 #include "qapi/qobject-output-visitor.h"
28 #include "migration/migration-test.h"
30 /* TODO actually test the results and get rid of this */
31 #define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__))
33 unsigned start_address
;
36 static bool uffd_feature_thread_id
;
38 #if defined(__linux__)
39 #include <sys/syscall.h>
43 #if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD)
44 #include <sys/eventfd.h>
45 #include <sys/ioctl.h>
46 #include <linux/userfaultfd.h>
48 static bool ufd_version_check(void)
50 struct uffdio_api api_struct
;
53 int ufd
= syscall(__NR_userfaultfd
, O_CLOEXEC
);
56 g_test_message("Skipping test: userfaultfd not available");
60 api_struct
.api
= UFFD_API
;
61 api_struct
.features
= 0;
62 if (ioctl(ufd
, UFFDIO_API
, &api_struct
)) {
63 g_test_message("Skipping test: UFFDIO_API failed");
66 uffd_feature_thread_id
= api_struct
.features
& UFFD_FEATURE_THREAD_ID
;
68 ioctl_mask
= (__u64
)1 << _UFFDIO_REGISTER
|
69 (__u64
)1 << _UFFDIO_UNREGISTER
;
70 if ((api_struct
.ioctls
& ioctl_mask
) != ioctl_mask
) {
71 g_test_message("Skipping test: Missing userfault feature");
79 static bool ufd_version_check(void)
81 g_test_message("Skipping test: Userfault not available (builtdtime)");
87 static const char *tmpfs
;
89 /* The boot file modifies memory area in [start_address, end_address)
90 * repeatedly. It outputs a 'B' at a fixed rate while it's still running.
92 #include "tests/migration/i386/a-b-bootblock.h"
93 #include "tests/migration/aarch64/a-b-kernel.h"
94 #include "tests/migration/s390x/a-b-bios.h"
96 static void init_bootfile(const char *bootpath
, void *content
, size_t len
)
98 FILE *bootfile
= fopen(bootpath
, "wb");
100 g_assert_cmpint(fwrite(content
, len
, 1, bootfile
), ==, 1);
105 * Wait for some output in the serial output file,
106 * we get an 'A' followed by an endless string of 'B's
107 * but on the destination we won't have the A.
109 static void wait_for_serial(const char *side
)
111 char *serialpath
= g_strdup_printf("%s/%s", tmpfs
, side
);
112 FILE *serialfile
= fopen(serialpath
, "r");
113 const char *arch
= qtest_get_arch();
114 int started
= (strcmp(side
, "src_serial") == 0 &&
115 strcmp(arch
, "ppc64") == 0) ? 0 : 1;
119 int readvalue
= fgetc(serialfile
);
122 /* SLOF prints its banner before starting test,
123 * to ignore it, mark the start of the test with '_',
124 * ignore all characters until this marker
131 fseek(serialfile
, 0, SEEK_SET
);
148 started
= (strcmp(side
, "src_serial") == 0 &&
149 strcmp(arch
, "ppc64") == 0) ? 0 : 1;
150 fseek(serialfile
, 0, SEEK_SET
);
155 fprintf(stderr
, "Unexpected %d on %s serial\n", readvalue
, side
);
156 g_assert_not_reached();
161 static void stop_cb(void *opaque
, const char *name
, QDict
*data
)
163 if (!strcmp(name
, "STOP")) {
169 * Events can get in the way of responses we are actually waiting for.
172 static QDict
*wait_command_fd(QTestState
*who
, int fd
, const char *command
, ...)
176 va_start(ap
, command
);
177 qtest_qmp_vsend_fds(who
, &fd
, 1, command
, ap
);
180 return qtest_qmp_receive_success(who
, stop_cb
, NULL
);
184 * Events can get in the way of responses we are actually waiting for.
187 static QDict
*wait_command(QTestState
*who
, const char *command
, ...)
191 va_start(ap
, command
);
192 qtest_qmp_vsend(who
, command
, ap
);
195 return qtest_qmp_receive_success(who
, stop_cb
, NULL
);
199 * Note: caller is responsible to free the returned object via
200 * qobject_unref() after use
202 static QDict
*migrate_query(QTestState
*who
)
204 return wait_command(who
, "{ 'execute': 'query-migrate' }");
208 * Note: caller is responsible to free the returned object via
211 static gchar
*migrate_query_status(QTestState
*who
)
213 QDict
*rsp_return
= migrate_query(who
);
214 gchar
*status
= g_strdup(qdict_get_str(rsp_return
, "status"));
217 qobject_unref(rsp_return
);
223 * It's tricky to use qemu's migration event capability with qtest,
224 * events suddenly appearing confuse the qmp()/hmp() responses.
227 static int64_t read_ram_property_int(QTestState
*who
, const char *property
)
229 QDict
*rsp_return
, *rsp_ram
;
232 rsp_return
= migrate_query(who
);
233 if (!qdict_haskey(rsp_return
, "ram")) {
237 rsp_ram
= qdict_get_qdict(rsp_return
, "ram");
238 result
= qdict_get_try_int(rsp_ram
, property
, 0);
240 qobject_unref(rsp_return
);
244 static uint64_t get_migration_pass(QTestState
*who
)
246 return read_ram_property_int(who
, "dirty-sync-count");
249 static void read_blocktime(QTestState
*who
)
253 rsp_return
= migrate_query(who
);
254 g_assert(qdict_haskey(rsp_return
, "postcopy-blocktime"));
255 qobject_unref(rsp_return
);
258 static void wait_for_migration_status(QTestState
*who
,
265 status
= migrate_query_status(who
);
266 completed
= strcmp(status
, goal
) == 0;
267 g_assert_cmpstr(status
, !=, "failed");
276 static void wait_for_migration_complete(QTestState
*who
)
278 wait_for_migration_status(who
, "completed");
281 static void wait_for_migration_pass(QTestState
*who
)
283 uint64_t initial_pass
= get_migration_pass(who
);
286 /* Wait for the 1st sync */
287 while (!got_stop
&& !initial_pass
) {
289 initial_pass
= get_migration_pass(who
);
294 pass
= get_migration_pass(who
);
295 } while (pass
== initial_pass
&& !got_stop
);
298 static void check_guests_ram(QTestState
*who
)
300 /* Our ASM test will have been incrementing one byte from each page from
301 * start_address to < end_address in order. This gives us a constraint
302 * that any page's byte should be equal or less than the previous pages
303 * byte (mod 256); and they should all be equal except for one transition
304 * at the point where we meet the incrementer. (We're running this with
305 * the guest stopped).
310 bool hit_edge
= false;
313 qtest_memread(who
, start_address
, &first_byte
, 1);
314 last_byte
= first_byte
;
316 for (address
= start_address
+ TEST_MEM_PAGE_SIZE
; address
< end_address
;
317 address
+= TEST_MEM_PAGE_SIZE
)
320 qtest_memread(who
, address
, &b
, 1);
321 if (b
!= last_byte
) {
322 if (((b
+ 1) % 256) == last_byte
&& !hit_edge
) {
323 /* This is OK, the guest stopped at the point of
324 * incrementing the previous page but didn't get
330 fprintf(stderr
, "Memory content inconsistency at %x"
331 " first_byte = %x last_byte = %x current = %x"
333 address
, first_byte
, last_byte
, b
, hit_edge
);
341 static void cleanup(const char *filename
)
343 char *path
= g_strdup_printf("%s/%s", tmpfs
, filename
);
349 static char *get_shmem_opts(const char *mem_size
, const char *shmem_path
)
351 return g_strdup_printf("-object memory-backend-file,id=mem0,size=%s"
352 ",mem-path=%s,share=on -numa node,memdev=mem0",
353 mem_size
, shmem_path
);
356 static char *SocketAddress_to_str(SocketAddress
*addr
)
358 switch (addr
->type
) {
359 case SOCKET_ADDRESS_TYPE_INET
:
360 return g_strdup_printf("tcp:%s:%s",
363 case SOCKET_ADDRESS_TYPE_UNIX
:
364 return g_strdup_printf("unix:%s",
365 addr
->u
.q_unix
.path
);
366 case SOCKET_ADDRESS_TYPE_FD
:
367 return g_strdup_printf("fd:%s", addr
->u
.fd
.str
);
368 case SOCKET_ADDRESS_TYPE_VSOCK
:
369 return g_strdup_printf("tcp:%s:%s",
373 return g_strdup("unknown address type");
377 static char *migrate_get_socket_address(QTestState
*who
, const char *parameter
)
381 Error
*local_err
= NULL
;
382 SocketAddressList
*addrs
;
386 rsp
= migrate_query(who
);
387 object
= qdict_get(rsp
, parameter
);
389 iv
= qobject_input_visitor_new(object
);
390 visit_type_SocketAddressList(iv
, NULL
, &addrs
, &local_err
);
393 /* we are only using a single address */
394 result
= SocketAddress_to_str(addrs
->value
);
396 qapi_free_SocketAddressList(addrs
);
401 static long long migrate_get_parameter(QTestState
*who
, const char *parameter
)
406 rsp
= wait_command(who
, "{ 'execute': 'query-migrate-parameters' }");
407 result
= qdict_get_int(rsp
, parameter
);
412 static void migrate_check_parameter(QTestState
*who
, const char *parameter
,
417 result
= migrate_get_parameter(who
, parameter
);
418 g_assert_cmpint(result
, ==, value
);
421 static void migrate_set_parameter(QTestState
*who
, const char *parameter
,
427 "{ 'execute': 'migrate-set-parameters',"
428 "'arguments': { %s: %lld } }",
430 g_assert(qdict_haskey(rsp
, "return"));
432 migrate_check_parameter(who
, parameter
, value
);
435 static void migrate_pause(QTestState
*who
)
439 rsp
= wait_command(who
, "{ 'execute': 'migrate-pause' }");
443 static void migrate_recover(QTestState
*who
, const char *uri
)
447 rsp
= wait_command(who
,
448 "{ 'execute': 'migrate-recover', "
449 " 'id': 'recover-cmd', "
450 " 'arguments': { 'uri': %s } }",
455 static void migrate_set_capability(QTestState
*who
, const char *capability
,
461 "{ 'execute': 'migrate-set-capabilities',"
463 "'capabilities': [ { "
464 "'capability': %s, 'state': %i } ] } }",
466 g_assert(qdict_haskey(rsp
, "return"));
471 * Send QMP command "migrate".
472 * Arguments are built from @fmt... (formatted like
473 * qobject_from_jsonf_nofail()) with "uri": @uri spliced in.
476 static void migrate(QTestState
*who
, const char *uri
, const char *fmt
, ...)
482 args
= qdict_from_vjsonf_nofail(fmt
, ap
);
485 g_assert(!qdict_haskey(args
, "uri"));
486 qdict_put_str(args
, "uri", uri
);
488 rsp
= qmp("{ 'execute': 'migrate', 'arguments': %p}", args
);
490 g_assert(qdict_haskey(rsp
, "return"));
494 static void migrate_postcopy_start(QTestState
*from
, QTestState
*to
)
498 rsp
= wait_command(from
, "{ 'execute': 'migrate-start-postcopy' }");
502 qtest_qmp_eventwait(from
, "STOP");
505 qtest_qmp_eventwait(to
, "RESUME");
508 static int test_migrate_start(QTestState
**from
, QTestState
**to
,
509 const char *uri
, bool hide_stderr
,
512 gchar
*cmd_src
, *cmd_dst
;
513 char *bootpath
= NULL
;
514 char *extra_opts
= NULL
;
515 char *shmem_path
= NULL
;
516 const char *arch
= qtest_get_arch();
517 const char *accel
= "kvm:tcg";
520 if (!g_file_test("/dev/shm", G_FILE_TEST_IS_DIR
)) {
521 g_test_skip("/dev/shm is not supported");
524 shmem_path
= g_strdup_printf("/dev/shm/qemu-%d", getpid());
528 bootpath
= g_strdup_printf("%s/bootsect", tmpfs
);
529 if (strcmp(arch
, "i386") == 0 || strcmp(arch
, "x86_64") == 0) {
530 /* the assembled x86 boot sector should be exactly one sector large */
531 assert(sizeof(x86_bootsect
) == 512);
532 init_bootfile(bootpath
, x86_bootsect
, sizeof(x86_bootsect
));
533 extra_opts
= use_shmem
? get_shmem_opts("150M", shmem_path
) : NULL
;
534 cmd_src
= g_strdup_printf("-machine accel=%s -m 150M"
535 " -name source,debug-threads=on"
536 " -serial file:%s/src_serial"
537 " -drive file=%s,format=raw %s",
538 accel
, tmpfs
, bootpath
,
539 extra_opts
? extra_opts
: "");
540 cmd_dst
= g_strdup_printf("-machine accel=%s -m 150M"
541 " -name target,debug-threads=on"
542 " -serial file:%s/dest_serial"
543 " -drive file=%s,format=raw"
545 accel
, tmpfs
, bootpath
, uri
,
546 extra_opts
? extra_opts
: "");
547 start_address
= X86_TEST_MEM_START
;
548 end_address
= X86_TEST_MEM_END
;
549 } else if (g_str_equal(arch
, "s390x")) {
550 init_bootfile(bootpath
, s390x_elf
, sizeof(s390x_elf
));
551 extra_opts
= use_shmem
? get_shmem_opts("128M", shmem_path
) : NULL
;
552 cmd_src
= g_strdup_printf("-machine accel=%s -m 128M"
553 " -name source,debug-threads=on"
554 " -serial file:%s/src_serial -bios %s %s",
555 accel
, tmpfs
, bootpath
,
556 extra_opts
? extra_opts
: "");
557 cmd_dst
= g_strdup_printf("-machine accel=%s -m 128M"
558 " -name target,debug-threads=on"
559 " -serial file:%s/dest_serial -bios %s"
561 accel
, tmpfs
, bootpath
, uri
,
562 extra_opts
? extra_opts
: "");
563 start_address
= S390_TEST_MEM_START
;
564 end_address
= S390_TEST_MEM_END
;
565 } else if (strcmp(arch
, "ppc64") == 0) {
566 extra_opts
= use_shmem
? get_shmem_opts("256M", shmem_path
) : NULL
;
567 cmd_src
= g_strdup_printf("-machine accel=%s -m 256M -nodefaults"
568 " -name source,debug-threads=on"
569 " -serial file:%s/src_serial"
570 " -prom-env 'use-nvramrc?=true' -prom-env "
571 "'nvramrc=hex .\" _\" begin %x %x "
572 "do i c@ 1 + i c! 1000 +loop .\" B\" 0 "
573 "until' %s", accel
, tmpfs
, end_address
,
574 start_address
, extra_opts
? extra_opts
: "");
575 cmd_dst
= g_strdup_printf("-machine accel=%s -m 256M"
576 " -name target,debug-threads=on"
577 " -serial file:%s/dest_serial"
580 extra_opts
? extra_opts
: "");
582 start_address
= PPC_TEST_MEM_START
;
583 end_address
= PPC_TEST_MEM_END
;
584 } else if (strcmp(arch
, "aarch64") == 0) {
585 init_bootfile(bootpath
, aarch64_kernel
, sizeof(aarch64_kernel
));
586 extra_opts
= use_shmem
? get_shmem_opts("150M", shmem_path
) : NULL
;
587 cmd_src
= g_strdup_printf("-machine virt,accel=%s,gic-version=max "
588 "-name vmsource,debug-threads=on -cpu max "
589 "-m 150M -serial file:%s/src_serial "
591 accel
, tmpfs
, bootpath
,
592 extra_opts
? extra_opts
: "");
593 cmd_dst
= g_strdup_printf("-machine virt,accel=%s,gic-version=max "
594 "-name vmdest,debug-threads=on -cpu max "
595 "-m 150M -serial file:%s/dest_serial "
598 accel
, tmpfs
, bootpath
, uri
,
599 extra_opts
? extra_opts
: "");
601 start_address
= ARM_TEST_MEM_START
;
602 end_address
= ARM_TEST_MEM_END
;
604 g_assert(sizeof(aarch64_kernel
) <= ARM_TEST_MAX_KERNEL_SIZE
);
606 g_assert_not_reached();
614 tmp
= g_strdup_printf("%s 2>/dev/null", cmd_src
);
618 tmp
= g_strdup_printf("%s 2>/dev/null", cmd_dst
);
623 *from
= qtest_start(cmd_src
);
626 *to
= qtest_init(cmd_dst
);
630 * Remove shmem file immediately to avoid memory leak in test failed case.
631 * It's valid becase QEMU has already opened this file
641 static void test_migrate_end(QTestState
*from
, QTestState
*to
, bool test_dest
)
643 unsigned char dest_byte_a
, dest_byte_b
, dest_byte_c
, dest_byte_d
;
648 qtest_memread(to
, start_address
, &dest_byte_a
, 1);
650 /* Destination still running, wait for a byte to change */
652 qtest_memread(to
, start_address
, &dest_byte_b
, 1);
654 } while (dest_byte_a
== dest_byte_b
);
656 qtest_qmp_discard_response(to
, "{ 'execute' : 'stop'}");
658 /* With it stopped, check nothing changes */
659 qtest_memread(to
, start_address
, &dest_byte_c
, 1);
661 qtest_memread(to
, start_address
, &dest_byte_d
, 1);
662 g_assert_cmpint(dest_byte_c
, ==, dest_byte_d
);
664 check_guests_ram(to
);
670 cleanup("migsocket");
671 cleanup("src_serial");
672 cleanup("dest_serial");
675 static void deprecated_set_downtime(QTestState
*who
, const double value
)
680 "{ 'execute': 'migrate_set_downtime',"
681 " 'arguments': { 'value': %f } }", value
);
682 g_assert(qdict_haskey(rsp
, "return"));
684 migrate_check_parameter(who
, "downtime-limit", value
* 1000);
687 static void deprecated_set_speed(QTestState
*who
, long long value
)
691 rsp
= qtest_qmp(who
, "{ 'execute': 'migrate_set_speed',"
692 "'arguments': { 'value': %lld } }", value
);
693 g_assert(qdict_haskey(rsp
, "return"));
695 migrate_check_parameter(who
, "max-bandwidth", value
);
698 static void deprecated_set_cache_size(QTestState
*who
, long long value
)
702 rsp
= qtest_qmp(who
, "{ 'execute': 'migrate-set-cache-size',"
703 "'arguments': { 'value': %lld } }", value
);
704 g_assert(qdict_haskey(rsp
, "return"));
706 migrate_check_parameter(who
, "xbzrle-cache-size", value
);
709 static void test_deprecated(void)
713 from
= qtest_start("-machine none");
715 deprecated_set_downtime(from
, 0.12345);
716 deprecated_set_speed(from
, 12345);
717 deprecated_set_cache_size(from
, 4096);
722 static int migrate_postcopy_prepare(QTestState
**from_ptr
,
726 char *uri
= g_strdup_printf("unix:%s/migsocket", tmpfs
);
727 QTestState
*from
, *to
;
729 if (test_migrate_start(&from
, &to
, uri
, hide_error
, false)) {
733 migrate_set_capability(from
, "postcopy-ram", true);
734 migrate_set_capability(to
, "postcopy-ram", true);
735 migrate_set_capability(to
, "postcopy-blocktime", true);
737 /* We want to pick a speed slow enough that the test completes
738 * quickly, but that it doesn't complete precopy even on a slow
739 * machine, so also set the downtime.
741 migrate_set_parameter(from
, "max-bandwidth", 100000000);
742 migrate_set_parameter(from
, "downtime-limit", 1);
744 /* Wait for the first serial output from the source */
745 wait_for_serial("src_serial");
747 migrate(from
, uri
, "{}");
750 wait_for_migration_pass(from
);
758 static void migrate_postcopy_complete(QTestState
*from
, QTestState
*to
)
760 wait_for_migration_complete(from
);
762 /* Make sure we get at least one "B" on destination */
763 wait_for_serial("dest_serial");
765 if (uffd_feature_thread_id
) {
769 test_migrate_end(from
, to
, true);
772 static void test_postcopy(void)
774 QTestState
*from
, *to
;
776 if (migrate_postcopy_prepare(&from
, &to
, false)) {
779 migrate_postcopy_start(from
, to
);
780 migrate_postcopy_complete(from
, to
);
783 static void test_postcopy_recovery(void)
785 QTestState
*from
, *to
;
788 if (migrate_postcopy_prepare(&from
, &to
, true)) {
792 /* Turn postcopy speed down, 4K/s is slow enough on any machines */
793 migrate_set_parameter(from
, "max-postcopy-bandwidth", 4096);
795 /* Now we start the postcopy */
796 migrate_postcopy_start(from
, to
);
799 * Wait until postcopy is really started; we can only run the
800 * migrate-pause command during a postcopy
802 wait_for_migration_status(from
, "postcopy-active");
805 * Manually stop the postcopy migration. This emulates a network
806 * failure with the migration socket
811 * Wait for destination side to reach postcopy-paused state. The
812 * migrate-recover command can only succeed if destination machine
813 * is in the paused state
815 wait_for_migration_status(to
, "postcopy-paused");
818 * Create a new socket to emulate a new channel that is different
819 * from the broken migration channel; tell the destination to
820 * listen to the new port
822 uri
= g_strdup_printf("unix:%s/migsocket-recover", tmpfs
);
823 migrate_recover(to
, uri
);
826 * Try to rebuild the migration channel using the resume flag and
827 * the newly created channel
829 wait_for_migration_status(from
, "postcopy-paused");
830 migrate(from
, uri
, "{'resume': true}");
833 /* Restore the postcopy bandwidth to unlimited */
834 migrate_set_parameter(from
, "max-postcopy-bandwidth", 0);
836 migrate_postcopy_complete(from
, to
);
839 static void test_baddest(void)
841 QTestState
*from
, *to
;
846 if (test_migrate_start(&from
, &to
, "tcp:0:0", true, false)) {
849 migrate(from
, "tcp:0:0", "{}");
851 status
= migrate_query_status(from
);
852 g_assert(!strcmp(status
, "setup") || !(strcmp(status
, "failed")));
853 failed
= !strcmp(status
, "failed");
857 /* Is the machine currently running? */
858 rsp_return
= wait_command(from
, "{ 'execute': 'query-status' }");
859 g_assert(qdict_haskey(rsp_return
, "running"));
860 g_assert(qdict_get_bool(rsp_return
, "running"));
861 qobject_unref(rsp_return
);
863 test_migrate_end(from
, to
, false);
866 static void test_precopy_unix(void)
868 char *uri
= g_strdup_printf("unix:%s/migsocket", tmpfs
);
869 QTestState
*from
, *to
;
871 if (test_migrate_start(&from
, &to
, uri
, false, false)) {
875 /* We want to pick a speed slow enough that the test completes
876 * quickly, but that it doesn't complete precopy even on a slow
877 * machine, so also set the downtime.
879 /* 1 ms should make it not converge*/
880 migrate_set_parameter(from
, "downtime-limit", 1);
882 migrate_set_parameter(from
, "max-bandwidth", 1000000000);
884 /* Wait for the first serial output from the source */
885 wait_for_serial("src_serial");
887 migrate(from
, uri
, "{}");
889 wait_for_migration_pass(from
);
891 /* 300 ms should converge */
892 migrate_set_parameter(from
, "downtime-limit", 300);
895 qtest_qmp_eventwait(from
, "STOP");
898 qtest_qmp_eventwait(to
, "RESUME");
900 wait_for_serial("dest_serial");
901 wait_for_migration_complete(from
);
903 test_migrate_end(from
, to
, true);
908 /* Currently upset on aarch64 TCG */
909 static void test_ignore_shared(void)
911 char *uri
= g_strdup_printf("unix:%s/migsocket", tmpfs
);
912 QTestState
*from
, *to
;
914 if (test_migrate_start(&from
, &to
, uri
, false, true)) {
918 migrate_set_capability(from
, "x-ignore-shared", true);
919 migrate_set_capability(to
, "x-ignore-shared", true);
921 /* Wait for the first serial output from the source */
922 wait_for_serial("src_serial");
924 migrate(from
, uri
, "{}");
926 wait_for_migration_pass(from
);
929 qtest_qmp_eventwait(from
, "STOP");
932 qtest_qmp_eventwait(to
, "RESUME");
934 wait_for_serial("dest_serial");
935 wait_for_migration_complete(from
);
937 /* Check whether shared RAM has been really skipped */
938 g_assert_cmpint(read_ram_property_int(from
, "transferred"), <, 1024 * 1024);
940 test_migrate_end(from
, to
, true);
945 static void test_xbzrle(const char *uri
)
947 QTestState
*from
, *to
;
949 if (test_migrate_start(&from
, &to
, uri
, false, false)) {
954 * We want to pick a speed slow enough that the test completes
955 * quickly, but that it doesn't complete precopy even on a slow
956 * machine, so also set the downtime.
958 /* 1 ms should make it not converge*/
959 migrate_set_parameter(from
, "downtime-limit", 1);
961 migrate_set_parameter(from
, "max-bandwidth", 1000000000);
963 migrate_set_parameter(from
, "xbzrle-cache-size", 33554432);
965 migrate_set_capability(from
, "xbzrle", "true");
966 migrate_set_capability(to
, "xbzrle", "true");
967 /* Wait for the first serial output from the source */
968 wait_for_serial("src_serial");
970 migrate(from
, uri
, "{}");
972 wait_for_migration_pass(from
);
974 /* 300ms should converge */
975 migrate_set_parameter(from
, "downtime-limit", 300);
978 qtest_qmp_eventwait(from
, "STOP");
980 qtest_qmp_eventwait(to
, "RESUME");
982 wait_for_serial("dest_serial");
983 wait_for_migration_complete(from
);
985 test_migrate_end(from
, to
, true);
988 static void test_xbzrle_unix(void)
990 char *uri
= g_strdup_printf("unix:%s/migsocket", tmpfs
);
996 static void test_precopy_tcp(void)
999 QTestState
*from
, *to
;
1001 if (test_migrate_start(&from
, &to
, "tcp:127.0.0.1:0", false, false)) {
1006 * We want to pick a speed slow enough that the test completes
1007 * quickly, but that it doesn't complete precopy even on a slow
1008 * machine, so also set the downtime.
1010 /* 1 ms should make it not converge*/
1011 migrate_set_parameter(from
, "downtime-limit", 1);
1013 migrate_set_parameter(from
, "max-bandwidth", 1000000000);
1015 /* Wait for the first serial output from the source */
1016 wait_for_serial("src_serial");
1018 uri
= migrate_get_socket_address(to
, "socket-address");
1020 migrate(from
, uri
, "{}");
1022 wait_for_migration_pass(from
);
1024 /* 300ms should converge */
1025 migrate_set_parameter(from
, "downtime-limit", 300);
1028 qtest_qmp_eventwait(from
, "STOP");
1030 qtest_qmp_eventwait(to
, "RESUME");
1032 wait_for_serial("dest_serial");
1033 wait_for_migration_complete(from
);
1035 test_migrate_end(from
, to
, true);
1039 static void test_migrate_fd_proto(void)
1041 QTestState
*from
, *to
;
1045 const char *error_desc
;
1047 if (test_migrate_start(&from
, &to
, "defer", false, false)) {
1052 * We want to pick a speed slow enough that the test completes
1053 * quickly, but that it doesn't complete precopy even on a slow
1054 * machine, so also set the downtime.
1056 /* 1 ms should make it not converge */
1057 migrate_set_parameter(from
, "downtime-limit", 1);
1059 migrate_set_parameter(from
, "max-bandwidth", 1000000000);
1061 /* Wait for the first serial output from the source */
1062 wait_for_serial("src_serial");
1064 /* Create two connected sockets for migration */
1065 ret
= socketpair(PF_LOCAL
, SOCK_STREAM
, 0, pair
);
1066 g_assert_cmpint(ret
, ==, 0);
1068 /* Send the 1st socket to the target */
1069 rsp
= wait_command_fd(to
, pair
[0],
1070 "{ 'execute': 'getfd',"
1071 " 'arguments': { 'fdname': 'fd-mig' }}");
1075 /* Start incoming migration from the 1st socket */
1076 rsp
= wait_command(to
, "{ 'execute': 'migrate-incoming',"
1077 " 'arguments': { 'uri': 'fd:fd-mig' }}");
1080 /* Send the 2nd socket to the target */
1081 rsp
= wait_command_fd(from
, pair
[1],
1082 "{ 'execute': 'getfd',"
1083 " 'arguments': { 'fdname': 'fd-mig' }}");
1087 /* Start migration to the 2nd socket*/
1088 migrate(from
, "fd:fd-mig", "{}");
1090 wait_for_migration_pass(from
);
1092 /* 300ms should converge */
1093 migrate_set_parameter(from
, "downtime-limit", 300);
1096 qtest_qmp_eventwait(from
, "STOP");
1098 qtest_qmp_eventwait(to
, "RESUME");
1100 /* Test closing fds */
1101 /* We assume, that QEMU removes named fd from its list,
1102 * so this should fail */
1103 rsp
= qtest_qmp(from
, "{ 'execute': 'closefd',"
1104 " 'arguments': { 'fdname': 'fd-mig' }}");
1105 g_assert_true(qdict_haskey(rsp
, "error"));
1106 error_desc
= qdict_get_str(qdict_get_qdict(rsp
, "error"), "desc");
1107 g_assert_cmpstr(error_desc
, ==, "File descriptor named 'fd-mig' not found");
1110 rsp
= qtest_qmp(to
, "{ 'execute': 'closefd',"
1111 " 'arguments': { 'fdname': 'fd-mig' }}");
1112 g_assert_true(qdict_haskey(rsp
, "error"));
1113 error_desc
= qdict_get_str(qdict_get_qdict(rsp
, "error"), "desc");
1114 g_assert_cmpstr(error_desc
, ==, "File descriptor named 'fd-mig' not found");
1117 /* Complete migration */
1118 wait_for_serial("dest_serial");
1119 wait_for_migration_complete(from
);
1120 test_migrate_end(from
, to
, true);
1123 int main(int argc
, char **argv
)
1125 char template[] = "/tmp/migration-test-XXXXXX";
1128 g_test_init(&argc
, &argv
, NULL
);
1130 if (!ufd_version_check()) {
1131 return g_test_run();
1135 * On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG
1136 * is touchy due to race conditions on dirty bits (especially on PPC for
1139 if (g_str_equal(qtest_get_arch(), "ppc64") &&
1140 access("/sys/module/kvm_hv", F_OK
)) {
1141 g_test_message("Skipping test: kvm_hv not available");
1142 return g_test_run();
1146 * Similar to ppc64, s390x seems to be touchy with TCG, so disable it
1147 * there until the problems are resolved
1149 if (g_str_equal(qtest_get_arch(), "s390x")) {
1150 #if defined(HOST_S390X)
1151 if (access("/dev/kvm", R_OK
| W_OK
)) {
1152 g_test_message("Skipping test: kvm not available");
1153 return g_test_run();
1156 g_test_message("Skipping test: Need s390x host to work properly");
1157 return g_test_run();
1161 tmpfs
= mkdtemp(template);
1163 g_test_message("mkdtemp on path (%s): %s", template, strerror(errno
));
1167 module_call_init(MODULE_INIT_QOM
);
1169 qtest_add_func("/migration/postcopy/unix", test_postcopy
);
1170 qtest_add_func("/migration/postcopy/recovery", test_postcopy_recovery
);
1171 qtest_add_func("/migration/deprecated", test_deprecated
);
1172 qtest_add_func("/migration/bad_dest", test_baddest
);
1173 qtest_add_func("/migration/precopy/unix", test_precopy_unix
);
1174 qtest_add_func("/migration/precopy/tcp", test_precopy_tcp
);
1175 /* qtest_add_func("/migration/ignore_shared", test_ignore_shared); */
1176 qtest_add_func("/migration/xbzrle/unix", test_xbzrle_unix
);
1177 qtest_add_func("/migration/fd_proto", test_migrate_fd_proto
);
1181 g_assert_cmpint(ret
, ==, 0);
1185 g_test_message("unable to rmdir: path (%s): %s",
1186 tmpfs
, strerror(errno
));