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2024-06-21monitor: Stop removing non-duplicated fdsFabiano Rosas
monitor_fdsets_cleanup() currently has three responsibilities: 1- Remove the fds that have been marked for removal(->removed=true) by qmp_remove_fd(). This is overly complicated, but ok. 2- Remove any file descriptors that have been passed into QEMU and never duplicated[1,2]. A file descriptor without duplicates indicates that no part of QEMU has made use of it. This is problematic because the current implementation does it only if the guest is not running and the monitor is closed. 3- Remove/free fdsets that have become empty due to the above removals. This is ok. The scenario described in (2) is starting to show some cracks now that we're trying to consume fds from the migration code: - Doing cleanup every time the last monitor connection closes works to reap unused fds, but also has the side effect of forcing the management layer to pass the file descriptors again in case of a disconnect/re-connect, if that happened to be the only monitor connection. Another side effect is that removing an fd with qmp_remove_fd() is effectively delayed until the last monitor connection closes. The usage of mon_refcount is also problematic because it's racy. - Checking runstate_is_running() skips the cleanup unless the VM is running and avoids premature cleanup of the fds, but also has the side effect of blocking the legitimate removal of an fd via qmp_remove_fd() if the VM happens to be in another state. This affects qmp_remove_fd() and qmp_query_fdsets() in particular because requesting a removal at a bad time (guest stopped) might cause an fd to never be removed, or to be removed at a much later point in time, causing the query command to continue showing the supposedly removed fd/fdset. Note that file descriptors that *have* been duplicated are owned by the code that uses them and will be removed after qemu_close() is called. Therefore we've decided that the best course of action to avoid the undesired side-effects is to stop managing non-duplicated file descriptors. 1- efb87c1697 ("monitor: Clean up fd sets on monitor disconnect") 2- ebe52b592d ("monitor: Prevent removing fd from set during init") Reviewed-by: Peter Xu <peterx@redhat.com> [fix logic mistake: s/fdset_free/fdset_free_if_empty] Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-06-12tests/qtest/libqtest: add qtest_has_cpu_model() apiAni Sinha
Added a new test api qtest_has_cpu_model() in order to check availability of some cpu models in the current QEMU binary. The specific architecture of the QEMU binary is selected using the QTEST_QEMU_BINARY environment variable. This api would be useful to run tests against some older cpu models after checking if QEMU actually supported these models. Signed-off-by: Ani Sinha <anisinha@redhat.com> Reviewed-by: Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240610155303.7933-3-anisinha@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-10-20tests/qtest: Introduce qtest_resolve_machine_aliasFabiano Rosas
The migration tests are being enhanced to test migration between different QEMU versions. A requirement of migration is that the machine type between source and destination matches, including the version. We cannot hardcode machine types in the tests because those change with each release. QEMU provides a machine type alias that has a fixed name, but points to the latest machine type at each release. Add a helper to resolve the alias into the exact machine type. E.g. "-machine pc" resolves to "pc-i440fx-8.2" Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <20231018192741.25885-6-farosas@suse.de>
2023-10-20tests/qtest: Introduce qtest_has_machine_with_envFabiano Rosas
Add a variant of qtest_has_machine() that receives an environment variable containing an alternate QEMU binary path. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <20231018192741.25885-5-farosas@suse.de>
2023-10-20tests/qtest: Introduce qtest_init_with_envFabiano Rosas
Add a version of qtest_init() that takes an environment variable containing the path of the QEMU binary. This allows tests to use more than one QEMU binary. If no variable is provided or the environment variable does not exist, that is not an error. Fallback to using QTEST_QEMU_BINARY. Signed-off-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <20231018192741.25885-3-farosas@suse.de>
2023-10-11tests/qtest: migration: Add support for negative testing of qmp_migrateFabiano Rosas
There is currently no way to write a test for errors that happened in qmp_migrate before the migration has started. Add a version of qmp_migrate that ensures an error happens. To make use of it a test needs to set MigrateCommon.result as MIG_TEST_QMP_ERROR. Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <20230712190742.22294-6-farosas@suse.de>
2023-08-22qtest: implement named interception of out-GPIOChris Laplante
Adds qtest_irq_intercept_out_named method, which utilizes a new optional name parameter to the irq_intercept_out qtest command. Signed-off-by: Chris Laplante <chris@laplante.io> Message-id: 20230728160324.1159090-4-chris@laplante.io Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-07-10tests/qtest: Move mkimg() and have_qemu_img() from libqos to libqtestThomas Huth
These two functions can be useful for other qtests beside the qos-test, too, so move them to libqtest instead. Message-Id: <20230704071655.75381-3-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-27qtest: add qtest_pid()Marc-André Lureau
Used in the following test on win32, to share sockets with the QEMU process. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20230606115658.677673-7-marcandre.lureau@redhat.com>
2023-06-02tests/qtest: add support for callback to receive QMP eventsDaniel P. Berrangé
Currently code must call one of the qtest_qmp_event* functions to fetch events. These are only usable if the immediate caller knows the particular event they want to capture, and are only interested in one specific event type. Adding ability to register an event callback lets the caller capture a range of events over any period of time. 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: <20230601161347.1803440-3-berrange@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02tests/qtest: add various qtest_qmp_assert_success() variantsDaniel P. Berrangé
Add several counterparts of qtest_qmp_assert_success() that can * Use va_list instead of ... * Accept a list of FDs to send * Return the response data 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: <20230601161347.1803440-2-berrange@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-03-13libqtest: make qtest_qmp_add_client work on win32Marc-André Lureau
Use the "get-win32-socket" function to pass an opened socket to QEMU, instead of using "getfd", which relies on socket ancillary FD message passing. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20230306122751.2355515-10-marcandre.lureau@redhat.com>
2022-11-05Fix some typos in documentation and commentsStefan Weil
Most of them were found and fixed using codespell. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20221030105944.311940-1-sw@weilnetz.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-10-28tests/qtest: libqtest: Introduce qtest_wait_qemu()Bin Meng
Introduce an API for qtest to wait for the QEMU process to terminate. Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20221028045736.679903-7-bin.meng@windriver.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-11tests/x86: add helper qtest_qmp_device_del_send()Michael Labiuk
Move sending 'device_del' command to separate function. Function can be used in case of addition action is needed to start actual removing device after sending command. Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com> Message-Id: <20220929223547.1429580-2-michael.labiuk@virtuozzo.com> Reviewed-by: Thomas Huth <thuth@redhat.com> [thuth: Fixed typo] Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-09-27tests/qtest: libqtest: Exclude the *_fds APIs for win32Bin Meng
libqmp.c::qmp_fd_vsend_fds() is not available on Windows, hence any APIs in libqtest that call libqmp.c::qmp_fd_vsend_fds() should be excluded for win32 too. This includes the following: * qtest_qmp_vsend_fds() * qtest_vqmp_fds() * qtest_qmp_fds() * qtest_qmp_add_client() Note qtest_qmp_vsend() was wrongly written to call qmp_fd_vsend_fds() previously, but it should call the non fds version API qmp_fd_vsend(). Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220925113032.1949844-35-bmeng.cn@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-05-25hw: m25p80: allow write_enable latch get/setIris Chen
The write_enable latch property is not currently exposed. This commit makes it a modifiable property. Signed-off-by: Iris Chen <irischenlj@fb.com> Acked-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com> Message-Id: <20220513055022.951759-1-irischenlj@fb.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-03libqtest: split QMP part in libqmpMarc-André Lureau
This will help moving QAPI/QMP in a common subproject. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Thomas Huth <thuth@redhat.com>
2022-05-03tests: move libqtest.h back under qtest/Marc-André Lureau
Since commit a2ce7dbd917 ("meson: convert tests/qtest to meson"), libqtest.h is under libqos/ directory, while libqtest.c is still in qtest/. Move back to its original location to avoid mixing with libqos/. Suggested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
2020-08-21meson: convert tests/qtest to mesonPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-22libqtest: make bufwrite rely on the TransportOpsAlexander Bulekov
When using qtest "in-process" communication, qtest_sendf directly calls a function in the server (qtest.c). Previously, bufwrite used socket_send, which bypasses the TransportOps enabling the call into qtest.c. This change replaces the socket_send calls with ops->send, maintaining the benefits of the direct socket_send call, while adding support for in-process qtest calls. Signed-off-by: Alexander Bulekov <alxndr@bu.edu> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Message-id: 20200220041118.23264-8-alxndr@bu.edu Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-12test: Move qtests to a separate directoryThomas Huth
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>
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