Commit Graph

91 Commits

Author SHA1 Message Date
Michael Tokarev
96420a30e0 tests/: spelling fixes
with some rewording in
 tests/qemu-iotests/298
 tests/qtest/fuzz/generic_fuzz.c
 tests/unit/test-throttle.c
as suggested by Eric.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
2023-09-08 13:08:52 +03:00
Wei Wang
06c48d6b37 qtest/migration-tests.c: use "-incoming defer" for postcopy tests
The Postcopy preempt capability is expected to be set before incoming
starts, so change the postcopy tests to start with deferred incoming and
call migrate-incoming after the cap has been set.

Why the existing tests (without this patch) didn't fail?
There could be two reasons:
1) "backlog" specifies the number of pending connections. As long as the
   server accepts the connections faster than the clients side connecting,
   connection will succeed. For the preempt test, it uses only 2 channels,
   so very likely to not have pending connections.
2) per my tests (on kernel 6.2), the number of pending connections allowed
   is actually "backlog + 1", which is 2 in this case.
That said, the implementation of socket_start_incoming_migration_internal
expects "migrate defer" to be used, and for safety, change the test to
work with the expected usage.

Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20230606101910.20456-3-wei.w.wang@intel.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-07-26 10:55:56 +02:00
Juan Quintela
bc28a6111d migration-test: machine_opts is really arch specific
And it needs to be in both source and target, so put it on arch_opts.

Reviewed-by: Peter Xu <peterx@redhat.com>
Message-ID: <20230608224943.3877-7-quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-07-26 10:55:56 +02:00
Juan Quintela
832c732c5d migration-test: Create arch_opts
This will contain the options needed for both source and target.

Reviewed-by: Peter Xu <peterx@redhat.com>
Message-ID: <20230608224943.3877-6-quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-07-26 10:55:56 +02:00
Juan Quintela
42e52a8a77 migration-test: Make machine_opts regular with other options
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20230608224943.3877-5-quintela@redhat.com>
2023-07-26 10:55:56 +02:00
Juan Quintela
e3131dc76a migration-test: Be consistent for ppc
It makes no sense that we don't have the same configuration on both sides.

Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Message-ID: <20230608224943.3877-2-quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-07-26 10:55:56 +02:00
Fabiano Rosas
94aaf6d8a5 tests/qtest: Fix typo in multifd cancel test
This wasn't noticed because the test is currently disabled.

Fixes: 02f56e3de ("tests/qtest: massively speed up migration-test")
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Message-Id: <20230711212131.2370-1-farosas@suse.de>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-18 09:36:27 +02:00
Daniel P. Berrangé
e02f56e3de tests/qtest: massively speed up migration-test
The migration test cases that actually exercise live migration want to
ensure there is a minimum of two iterations of pre-copy, in order to
exercise the dirty tracking code.

Historically we've queried the migration status, looking for the
'dirty-sync-count' value to increment to track iterations. This was
not entirely reliable because often all the data would get transferred
quickly enough that the migration would finish before we wanted it
to. So we massively dropped the bandwidth and max downtime to
guarantee non-convergance. This had the unfortunate side effect
that every migration took at least 30 seconds to run (100 MB of
dirty pages / 3 MB/sec).

This optimization takes a different approach to ensuring that a
mimimum of two iterations. Rather than waiting for dirty-sync-count
to increment, directly look for an indication that the source VM
has dirtied RAM that has already been transferred.

On the source VM a magic marker is written just after the 3 MB
offset. The destination VM is now montiored to detect when the
magic marker is transferred. This gives a guarantee that the
first 3 MB of memory have been transferred. Now the source VM
memory is monitored at exactly the 3MB offset until we observe
a flip in its value. This gives us a guaranteed that the guest
workload has dirtied a byte that has already been transferred.

Since we're looking at a place that is only 3 MB from the start
of memory, with the 3 MB/sec bandwidth, this test should complete
in 1 second, instead of 30 seconds.

Once we've proved there is some dirty memory, migration can be
set back to full speed for the remainder of the 1st iteration,
and the entire of the second iteration at which point migration
should be complete.

On a test machine this further reduces the migration test time
from 8 minutes to 1 minute 40.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230601161347.1803440-11-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10 15:34:57 +02:00
Avihai Horon
7e6a5c730b tests: Add migration switchover ack capability test
Add migration switchover ack capability test. The test runs without
devices that support this capability, but is still useful to make sure
it didn't break anything.

Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: YangHang Liu <yanghliu@redhat.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2023-06-30 06:02:51 +02:00
Peter Xu
b861383c26 qtest/migration: Document live=true cases
Document every single live=true use cases on why it should be done in the
live manner.  Also document on the parameter so new precopy cases should
always use live=off unless with explicit reasonings.

Cc: Thomas Huth <thuth@redhat.com>
Cc: Juan Quintela <quintela@redhat.com>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20230601172935.175726-1-peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02 11:46:20 +02:00
Daniel P. Berrangé
3c4fb17723 tests/qtest: make more migration pre-copy scenarios run non-live
There are 27 pre-copy live migration scenarios being tested. In all of
these we force non-convergence and run for one iteration, then let it
converge and wait for completion during the second (or following)
iterations. At 3 mbps bandwidth limit the first iteration takes a very
long time (~30 seconds).

While it is important to test the migration passes and convergence
logic, it is overkill to do this for all 27 pre-copy scenarios. The
TLS migration scenarios in particular are merely exercising different
code paths during connection establishment.

To optimize time taken, switch most of the test scenarios to run
non-live (ie guest CPUs paused) with no bandwidth limits. This gives
a massive speed up for most of the test scenarios.

For test coverage the following scenarios are unchanged

 * Precopy with UNIX sockets
 * Precopy with UNIX sockets and dirty ring tracking
 * Precopy with XBZRLE
 * Precopy with UNIX compress
 * Precopy with UNIX compress (nowait)
 * Precopy with multifd

On a test machine this reduces execution time from 13 minutes to
8 minutes.

Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230601161347.1803440-10-berrange@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02 11:46:19 +02:00
Daniel P. Berrangé
95014994e1 tests/qtest: distinguish src/dst migration VM stop/resume events
The 'got_stop' and 'got_resume' global variables apply to the src and
dst migration VM respectively. Change their names to make this explicit
to developers.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230601161347.1803440-9-berrange@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02 11:46:19 +02:00
Daniel P. Berrangé
266ea334b2 tests/qtest: capture RESUME events during migration
When running migration tests we monitor for a STOP event so we can skip
redundant waits. This will be needed for the RESUME event too shortly.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230601161347.1803440-8-berrange@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02 11:46:19 +02:00
Daniel P. Berrangé
aca0406958 tests/qtest: replace wait_command() with qtest_qmp_assert_success
Most usage of wait_command() is followed by qobject_unref(), which
is just a verbose re-implementation of qtest_qmp_assert_success().

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230601161347.1803440-7-berrange@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02 11:46:19 +02:00
Daniel P. Berrangé
cdf5ab5587 tests/qtest: switch to using event callbacks for STOP event
Change the migration test to use the new qtest event callback to watch
for the stop event. This ensures that we only watch for the STOP event
on the source QEMU. The previous code would set the single 'got_stop'
flag when either source or dest QEMU got the STOP event.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230601161347.1803440-6-berrange@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02 11:46:19 +02:00
Daniel P. Berrangé
11936f0ef6 tests/qtest: get rid of some 'qtest_qmp' usage in migration test
Some of the usage is just a verbose way of re-inventing the
qtest_qmp_assert_success(_ref) methods.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230601161347.1803440-5-berrange@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02 11:46:19 +02:00
Daniel P. Berrangé
ffd4727589 tests/qtest: get rid of 'qmp_command' helper in migration test
This function duplicates logic of qtest_qmp_assert_success_ref.
The qtest_qmp_assert_success_ref method has better diagnostics
on failure because it prints the entire QMP response, instead
of just asserting on existance of the 'error' key.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230601161347.1803440-4-berrange@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02 11:46:19 +02:00
Daniel P. Berrangé
855436dbf7 tests/qtest: replace qmp_discard_response with qtest_qmp_assert_success
The qmp_discard_response method simply ignores the result of the QMP
command, merely unref'ing the object. This is a bad idea for tests
as it leaves no trace if the QMP command unexpectedly failed. The
qtest_qmp_assert_success method will validate that the QMP command
returned without error, and if errors occur, it will print a message
on the console aiding debugging.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230421171411.566300-2-berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-05-16 09:14:18 +02:00
Lukas Straub
dc066da8bd qtest/migration-test.c: Add postcopy tests with compress enabled
Add postcopy tests with compress enabled to ensure nothing breaks
with the refactoring in the next commits.

preempt+compress is blocked, so no test needed for that case.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-05-08 15:25:26 +02:00
Lukas Straub
1536d1da5d qtest/migration-test.c: Add tests with compress enabled
There has never been tests for migration with compress enabled.

Add suitable tests, testing with compress-wait-thread = false
too.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-05-08 15:25:26 +02:00
Fabiano Rosas
0c1ae3ff9d tests/qtest: Fix tests when no KVM or TCG are present
It is possible to have a build with both TCG and KVM disabled due to
Xen requiring the i386 and x86_64 binaries to be present in an aarch64
host.

If we build with --disable-tcg on the aarch64 host, we will end-up
with a QEMU binary (x86) that does not support TCG nor KVM.

Skip tests that crash or hang in the above scenario. Do not include
any test cases if TCG and KVM are missing.

Make sure that calls to qtest_has_accel are placed after g_test_init
in similar fashion to commit ae4b01b349 ("tests: Ensure TAP version is
printed before other messages") to avoid TAP parsing errors.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230426180013.14814-9-farosas@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-05-02 10:54:32 +01:00
Juan Quintela
74902af737 tests/migration: Only run auto_converge in slow mode
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230412142001.16501-3-quintela@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-04-20 11:25:32 +02:00
Daniel P. Berrangé
e35b9a2e81 qtests: avoid printing comments before g_test_init()
The TAP protocol version line must be the first thing printed on
stdout. The migration test failed that requirement in certain
scenarios:

  # Skipping test: Userfault not available (builtdtime)
  TAP version 13
  # random seed: R02Sc120c807f11053eb90bfea845ba1e368
  1..32
  # Start of x86_64 tests
  # Start of migration tests
  ....

The TAP version is printed by g_test_init(), so we need to make
sure that any methods which print are run after that.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20230317170553.592707-1-berrange@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2023-03-22 15:08:26 +00:00
Dr. David Alan Gilbert
1bfc8dde50 tests/migration: Tweek auto converge limits check
Thomas found an autoconverge test failure where the
migration completed before the autoconverge had kicked in.

To try and avoid this again:
  a) Reduce the usleep in test_migrate_auto_converge
    so that it should exit quicker when autoconverge kicks in
  b) Make the loop exit immediately rather than have the sleep
     when it does start autoconverge, otherwise the autoconverge
     might succeed during the sleep.
  c) Reduce inc_pct so auto converge happens more slowly
  d) Reduce the max-bandwidth in migrate_ensure_non_converge
    to make the ensure more ensure.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20230306152612.52291-1-dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-13 09:01:00 +01:00
Peter Maydell
c15d9e2311 tests/qtest/migration-test: Disable migration/multifd/tcp/plain/cancel
migration-test has been flaky for a long time, both in CI and
otherwise:

https://gitlab.com/qemu-project/qemu/-/jobs/3806090216
(a FreeBSD job)
  32/648 ERROR:../tests/qtest/migration-helpers.c:205:wait_for_migration_status: assertion failed: (g_test_timer_elapsed() < MIGRATION_STATUS_WAIT_TIMEOUT) ERROR

on a local macos x86 box:
▶  34/621 ERROR:../../tests/qtest/migration-helpers.c:151:migrate_query_not_failed: assertion failed: (!g_str_equal(status, "failed")) ERROR
 34/621 qemu:qtest+qtest-i386 / qtest-i386/migration-test                         ERROR          168.12s   killed by signal 6 SIGABRT
――――――――――――――――――――――――――――――――――――― ✀  ―――――――――――――――――――――――――――――――――――――
stderr:
qemu-system-i386: Failed to peek at channel
query-migrate shows failed migration: Unable to write to socket: Broken pipe
**
ERROR:../../tests/qtest/migration-helpers.c:151:migrate_query_not_failed: assertion failed: (!g_str_equal(status, "failed"))

(test program exited with status code -6)
――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――

▶  37/621 ERROR:../../tests/qtest/migration-helpers.c:151:migrate_query_not_failed: assertion failed: (!g_str_equal(status, "failed")) ERROR
 37/621 qemu:qtest+qtest-x86_64 / qtest-x86_64/migration-test                     ERROR          174.37s   killed by signal 6 SIGABRT
――――――――――――――――――――――――――――――――――――― ✀  ―――――――――――――――――――――――――――――――――――――
stderr:
query-migrate shows failed migration: Unable to write to socket: Broken pipe
**
ERROR:../../tests/qtest/migration-helpers.c:151:migrate_query_not_failed: assertion failed: (!g_str_equal(status, "failed"))

(test program exited with status code -6)

In the cases where I've looked at the underlying log, this seems to
be in the migration/multifd/tcp/plain/cancel subtest.  Disable that
specific subtest by default until somebody can track down the
underlying cause. Enthusiasts can opt back in by setting
QEMU_TEST_FLAKY_TESTS=1 in their environment.

We might need to disable more parts of this test if this isn't
sufficient to fix the flakiness.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-id: 20230302172211.4146376-1-peter.maydell@linaro.org
2023-03-04 14:01:52 +00:00
Peter Xu
d5890ea072 util/userfaultfd: Add uffd_open()
Add a helper to create the uffd handle.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-02-06 19:22:56 +01:00
Guoyi Tu
0038e9a226 Call qemu_socketpair() instead of socketpair() when possible
As qemu_socketpair() was introduced in commit 3c63b4e9
("oslib-posix: Introduce qemu_socketpair()"), it's time
to replace the other existing socketpair() calls with
qemu_socketpair() if possible

Signed-off-by: Guoyi Tu <tugy@chinatelecom.cn>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <cd28916a-f1f3-b54e-6ade-8a3647c3a9a5@chinatelecom.cn>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-01-16 17:42:17 +01:00
Thomas Huth
0f0a9e4e5c tests/qtest/migration-test: Fix unlink error and memory leaks
When running the migration test compiled with Clang from Fedora 37
and sanitizers enabled, there is an error complaining about unlink():

 ../tests/qtest/migration-test.c:1072:12: runtime error: null pointer
  passed as argument 1, which is declared to never be null
 /usr/include/unistd.h:858:48: note: nonnull attribute specified here
 SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
  ../tests/qtest/migration-test.c:1072:12 in
 (test program exited with status code 1)
 TAP parsing error: Too few tests run (expected 33, got 20)

The data->clientcert and data->clientkey pointers can indeed be unset
in some tests, so we have to check them before calling unlink() with
those.

While we're at it, I also noticed that the code is only freeing
some but not all of the allocated strings in this function, and
indeed, valgrind is also complaining about memory leaks here.
So let's call g_free() on all allocated strings to avoid leaking
memory here.

Message-Id: <20221125083054.117504-1-thuth@redhat.com>
Tested-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-12-03 21:56:13 +01:00
Bin Meng
d1695f1839 tests/qtest: migration-test: Enable TLS PSK tests for win32
Since commit f1018ea0a3 ("tests: avoid DOS line endings in PSK file"),
the bug of the helper test_tls_psk_init_common() that caused TLS PSK
tests to fail on Windows was fixed. Let's enable these tests on win32.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20221101035021.729669-1-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-11-06 10:44:19 +01:00
Stefan Weil
d46e6bba55 tests/qtest: Fix two format strings
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20221105115525.623059-1-sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-11-06 10:41:47 +01:00
Xuzhou Cheng
f2d063e61e tests/qtest: migration-test: Make sure QEMU process "to" exited after migration is canceled
Make sure QEMU process "to" exited before launching another target
for migration in the test_multifd_tcp_cancel case.

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-8-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-28 14:32:09 +02:00
Bin Meng
1b0f1b14fe tests/qtest: Use EXIT_FAILURE instead of magic number
When migration fails, QEMU exits with a status code EXIT_FAILURE.
Change qtests to use the well-defined macro instead of magic number.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20221028045736.679903-6-bin.meng@windriver.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-28 14:31:49 +02:00
Bin Meng
b1f6208cf9 tests/qtest: migration-test: Fix [-Werror=format-overflow=] build warning
When tmpfs is NULL, a build warning is seen with GCC 9.3.0.
It's strange that GCC 11.2.0 on Ubuntu 22.04 does not catch this,
neither did the QEMU CI.

While we are here, improve the error message as well.

Reported-by: Shengjiang Wu <shengjiang.wu@windriver.com>
Fixes: e5553c1b8d ("tests/qtest: migration-test: Avoid using hardcoded /tmp")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221017132023.2228641-1-bmeng.cn@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-10-22 23:16:37 +02:00
Bin Meng
e5553c1b8d tests/qtest: migration-test: Avoid using hardcoded /tmp
This case was written to use hardcoded /tmp directory for temporary
files. Update to use g_dir_make_tmp() for a portable implementation.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221006151927.2079583-5-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-12 08:43:40 +02:00
Bin Meng
2c73437d8d tests/qtest: migration-test: Skip running some TLS cases for win32
Some migration test cases use TLS to communicate, but they fail on
Windows with the following error messages:

  qemu-system-x86_64: TLS handshake failed: Insufficient credentials for that request.
  qemu-system-x86_64: TLS handshake failed: Error in the pull function.
  query-migrate shows failed migration: TLS handshake failed: Error in the pull function.

Disable them temporarily.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20220925113032.1949844-51-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-09-27 20:51:21 +02:00
Bin Meng
4dc8be3883 tests/qtest: migration-test: Disable IO redirection for win32
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.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220925113032.1949844-40-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-09-27 20:51:21 +02:00
Bin Meng
d7613ee216 tests/qtest: migration-test: Skip running test_migrate_fd_proto on win32
The test case 'test_migrate_fd_proto' calls socketpair() which does
not exist on win32. Exclude it. The helper function wait_command_fd()
is not needed anymore, hence exclude it too.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20220824094029.1634519-22-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-25 15:24:09 +02:00
Bin Meng
2549f6102e tests/qtest: migration-test: Handle link() for win32
Windows does not provide a link() API like POSIX. Instead it provides
a similar API CreateHardLink() that does the same thing, but with
different argument order and return value.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20220824094029.1634519-14-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-25 15:24:09 +02:00
Bin Meng
413bebc046 tests: Use g_mkdir_with_parents()
Use the same g_mkdir_with_parents() call to create a directory on
all platforms.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20220824094029.1634519-13-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-25 15:24:09 +02:00
Bin Meng
3c239aa77e tests/qtest: Use g_mkdtemp()
Windows does not provide a mkdtemp() API, but glib does.
Replace mkdtemp() call with the glib version.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220824094029.1634519-3-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-25 15:16:13 +02:00
Thomas Huth
00269477c2 tests/qtest/migration-test: Remove duplicated test_postcopy from the test plan
test_postcopy() is currently run twice - which is just a waste of resources
and time. The commit d1a27b169b that introduced the duplicate talked about
renaming the "postcopy/unix" test, but apparently it forgot to remove the
old entry. Let's do that now.

Fixes: d1a27b169b ("tests: Add postcopy tls migration test")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220819053802.296584-5-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20220822165608.2980552-6-alex.bennee@linaro.org>
2022-08-24 10:14:49 +01:00
Thomas Huth
e25636a12a tests/qtest/migration-test: Only wait for serial output where migration succeeds
Waiting for the serial output can take a couple of seconds - and since
we're doing a lot of migration tests, this time easily sums up to
multiple minutes. But if a test is supposed to fail, it does not make
much sense to wait for the source to be in the right state first, so
we can skip the waiting here. This way we can speed up all tests where
the migration is supposed to fail. In the gitlab-CI gprov-gcov test,
each of the migration-tests now run two minutes faster!

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220819053802.296584-2-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20220822165608.2980552-3-alex.bennee@linaro.org>
2022-08-24 10:14:49 +01:00
Thomas Huth
1bca64a3f0 tests/qtest/migration-test: Run the dirty ring tests only with the x86 target
kvm_dirty_ring_supported() only checks whether the dirty ring support
is available on the x86 host, but it ignores whether the target QEMU
architecture is x86 or not. Thus the test_vcpu_dirty_limit() test
currently fails with the assert((strcmp(arch, "x86_64") == 0)) statement
in dirtylimit_start_vm() if the users run e.g. "make check-qtest-aarch64"
on their x86 host. Fix it by only executing the tests when we're running
with a x86_64 target QEMU binary with KVM.

Message-Id: <20220801114644.208197-1-thuth@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-01 16:30:18 +02:00
Peter Xu
2649a72555 migration-test: Allow test to run without uffd
We used to stop running all tests if uffd is not detected.  However
logically that's only needed for postcopy not the rest of tests.

Keep running the rest when still possible.

Signed-off-by: Peter Xu <peterx@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220728133516.92061-3-peterx@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-01 10:22:55 +02:00
Peter Xu
219044b8e6 migration-test: Use migrate_ensure_converge() for auto-converge
Thomas reported that auto-converge test will timeout on MacOS CI gatings.
Use the migrate_ensure_converge() helper too in the auto-converge as when
Daniel reworked the other test cases.

Since both max_bandwidth / downtime_limit will not be used for converge
calculations, make it simple by removing the remaining check, then we can
completely remove both variables altogether, since migrate_ensure_converge
is used the remaining check won't make much sense anyway.

Reported-by: Thomas Huth <thuth@redhat.com>
Suggested-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220728133516.92061-2-peterx@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-01 10:22:45 +02:00
Peter Xu
8f6fe91512 tests: Add postcopy preempt tests
Four tests are added for preempt mode:

  - Postcopy plain
  - Postcopy recovery
  - Postcopy tls
  - Postcopy tls+recovery

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220707185530.27801-1-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  dgilbert: Manual merge
2022-07-20 12:15:09 +01:00
Peter Xu
767fa9cfba tests: Add postcopy tls recovery migration test
It's easy to build this upon the postcopy tls test.  Rename the old
postcopy recovery test to postcopy/recovery/plain.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220707185527.27747-1-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  dgilbert: Manual merge
2022-07-20 12:15:09 +01:00
Peter Xu
d1a27b169b tests: Add postcopy tls migration test
We just added TLS tests for precopy but not postcopy.  Add the
corresponding test for vanilla postcopy.

Rename the vanilla postcopy to "postcopy/plain" because all postcopy tests
will only use unix sockets as channel.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220707185525.27692-1-peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  dgilbert: Manual merge
2022-07-20 12:15:09 +01:00
Peter Xu
312e9dd08c tests: Move MigrateCommon upper
So that it can be used in postcopy tests too soon.

Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220707185522.27638-1-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-07-20 12:15:09 +01:00
Hyman Huang(黄勇)
8aff6f501d tests: Add dirty page rate limit test
Add dirty page rate limit test if kernel support dirty ring,

The following qmp commands are covered by this test case:
"calc-dirty-rate", "query-dirty-rate", "set-vcpu-dirty-limit",
"cancel-vcpu-dirty-limit" and "query-vcpu-dirty-limit".

Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Acked-by: Peter Xu <peterx@redhat.com>
Message-Id: <eed5b847a6ef0a9c02a36383dbdd7db367dd1e7e.1656177590.git.huangy81@chinatelecom.cn>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-07-20 12:15:08 +01:00