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authorPaolo Bonzini <pbonzini@redhat.com>2011-03-12 17:44:08 +0100
committerBlue Swirl <blauwirbel@gmail.com>2011-03-13 14:44:22 +0000
commitcc015e9a5dde2f03f123357fa060acbdfcd570a4 (patch)
tree063cf9664992f48f1b7c0bb3ed4626f985715549 /cpus.c
parentb55c22c65b630137a2374ce9f2cfbf71322b7b71 (diff)
add Win32 IPI service
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'cpus.c')
-rw-r--r--cpus.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/cpus.c b/cpus.c
index 7559a02016..077729c507 100644
--- a/cpus.c
+++ b/cpus.c
@@ -854,13 +854,32 @@ static void *qemu_tcg_cpu_thread_fn(void *arg)
return NULL;
}
+static void qemu_cpu_kick_thread(CPUState *env)
+{
+#ifndef _WIN32
+ int err;
+
+ err = pthread_kill(env->thread->thread, SIG_IPI);
+ if (err) {
+ fprintf(stderr, "qemu:%s: %s", __func__, strerror(err));
+ exit(1);
+ }
+#else /* _WIN32 */
+ if (!qemu_cpu_is_self(env)) {
+ SuspendThread(env->thread->thread);
+ cpu_signal(0);
+ ResumeThread(env->thread->thread);
+ }
+#endif
+}
+
void qemu_cpu_kick(void *_env)
{
CPUState *env = _env;
qemu_cond_broadcast(env->halt_cond);
if (!env->thread_kicked) {
- qemu_thread_signal(env->thread, SIG_IPI);
+ qemu_cpu_kick_thread(env);
env->thread_kicked = true;
}
}
@@ -871,7 +890,7 @@ void qemu_cpu_kick_self(void)
assert(cpu_single_env);
if (!cpu_single_env->thread_kicked) {
- qemu_thread_signal(cpu_single_env->thread, SIG_IPI);
+ qemu_cpu_kick_thread(cpu_single_env);
cpu_single_env->thread_kicked = true;
}
#else
@@ -893,7 +912,7 @@ void qemu_mutex_lock_iothread(void)
} else {
qemu_mutex_lock(&qemu_fair_mutex);
if (qemu_mutex_trylock(&qemu_global_mutex)) {
- qemu_thread_signal(tcg_cpu_thread, SIG_IPI);
+ qemu_cpu_kick_thread(first_cpu);
qemu_mutex_lock(&qemu_global_mutex);
}
qemu_mutex_unlock(&qemu_fair_mutex);