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| author | Xuzhou Cheng <xuzhou.cheng@windriver.com> | 2022-10-28 12:57:26 +0800 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2022-10-28 11:17:12 +0200 |
| commit | c9923550b446e54413024117c0ed978a08e3ab1a (patch) | |
| tree | 5a16826541c7c0e2466c6f8a85e472ec778d1009 /accel | |
| parent | 8f4bcbcf110f27b3bf8b8c33b48ec321f3e136d3 (diff) | |
| download | qemu-c9923550b446e54413024117c0ed978a08e3ab1a.zip qemu-c9923550b446e54413024117c0ed978a08e3ab1a.tar.gz qemu-c9923550b446e54413024117c0ed978a08e3ab1a.tar.bz2 | |
accel/qtest: Support qtest accelerator for Windows
Currently signal SIGIPI [=SIGUSR1] is used to kick the dummy CPU
when qtest accelerator is used. However SIGUSR1 is unsupported on
Windows. To support Windows, we add a QemuSemaphore CPUState::sem
to kick the dummy CPU instead for Windows.
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: <20221028045736.679903-2-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/dummy-cpus.c | 14 | ||||
| -rw-r--r-- | accel/meson.build | 2 | ||||
| -rw-r--r-- | accel/qtest/meson.build | 3 |
3 files changed, 14 insertions, 5 deletions
diff --git a/accel/dummy-cpus.c b/accel/dummy-cpus.c index 10429fd..d6a1b8d 100644 --- a/accel/dummy-cpus.c +++ b/accel/dummy-cpus.c @@ -21,8 +21,6 @@ static void *dummy_cpu_thread_fn(void *arg) { CPUState *cpu = arg; - sigset_t waitset; - int r; rcu_register_thread(); @@ -32,8 +30,13 @@ static void *dummy_cpu_thread_fn(void *arg) cpu->can_do_io = 1; current_cpu = cpu; +#ifndef _WIN32 + sigset_t waitset; + int r; + sigemptyset(&waitset); sigaddset(&waitset, SIG_IPI); +#endif /* signal CPU creation */ cpu_thread_signal_created(cpu); @@ -41,6 +44,7 @@ static void *dummy_cpu_thread_fn(void *arg) do { qemu_mutex_unlock_iothread(); +#ifndef _WIN32 do { int sig; r = sigwait(&waitset, &sig); @@ -49,6 +53,9 @@ static void *dummy_cpu_thread_fn(void *arg) perror("sigwait"); exit(1); } +#else + qemu_sem_wait(&cpu->sem); +#endif qemu_mutex_lock_iothread(); qemu_wait_io_event(cpu); } while (!cpu->unplug); @@ -69,4 +76,7 @@ void dummy_start_vcpu_thread(CPUState *cpu) cpu->cpu_index); qemu_thread_create(cpu->thread, thread_name, dummy_cpu_thread_fn, cpu, QEMU_THREAD_JOINABLE); +#ifdef _WIN32 + qemu_sem_init(&cpu->sem, 0); +#endif } diff --git a/accel/meson.build b/accel/meson.build index b9a963c..259c35c 100644 --- a/accel/meson.build +++ b/accel/meson.build @@ -16,5 +16,5 @@ dummy_ss.add(files( 'dummy-cpus.c', )) -specific_ss.add_all(when: ['CONFIG_SOFTMMU', 'CONFIG_POSIX'], if_true: dummy_ss) +specific_ss.add_all(when: ['CONFIG_SOFTMMU'], if_true: dummy_ss) specific_ss.add_all(when: ['CONFIG_XEN'], if_true: dummy_ss) diff --git a/accel/qtest/meson.build b/accel/qtest/meson.build index 4c65600..176d990 100644 --- a/accel/qtest/meson.build +++ b/accel/qtest/meson.build @@ -1,2 +1 @@ -qtest_module_ss.add(when: ['CONFIG_SOFTMMU', 'CONFIG_POSIX'], - if_true: files('qtest.c')) +qtest_module_ss.add(when: ['CONFIG_SOFTMMU'], if_true: files('qtest.c')) |