bool cpu_exec_all(void) { int ret = 0; if (next_cpu == NULL) next_cpu = first_cpu; for (; next_cpu != NULL && !exit_request; next_cpu = next_cpu->next_cpu) { CPUState *env = next_cpu; qemu_clock_enable(vm_clock, (env->singlestep_enabled & SSTEP_NOTIMER) == 0); if (qemu_alarm_pending()) break; if (cpu_can_run(env)) ret = qemu_cpu_exec(env); else if (env->stop) break; if (ret == EXCP_DEBUG) { gdb_set_stop_cpu(env); debug_requested = EXCP_DEBUG; break; } } exit_request = 0; return any_cpu_has_work(); }