void run_on_cpu(CPUState *env, void (*func)(void *data), void *data) { struct qemu_work_item wi; if (qemu_cpu_self(env)) { func(data); return; } wi.func = func; wi.data = data; if (!env->queued_work_first) env->queued_work_first = &wi; else env->queued_work_last->next = &wi; env->queued_work_last = &wi; wi.next = NULL; wi.done = false; qemu_cpu_kick(env); while (!wi.done) { CPUState *self_env = cpu_single_env; qemu_cond_wait(&qemu_work_cond, &qemu_global_mutex); cpu_single_env = self_env; } }