diff options
| -rw-r--r-- | cpus.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/cpus.c b/cpus.c index 3978f63d8f..a2b33ccb29 100644 --- a/cpus.c +++ b/cpus.c @@ -1554,6 +1554,14 @@ static void *qemu_tcg_rr_cpu_thread_fn(void *arg) atomic_mb_set(&cpu->exit_request, 0); } + if (use_icount && all_cpu_threads_idle()) { + /* + * When all cpus are sleeping (e.g in WFI), to avoid a deadlock + * in the main_loop, wake it up in order to start the warp timer. + */ + qemu_notify_event(); + } + qemu_tcg_rr_wait_io_event(cpu ? cpu : first_cpu); deal_with_unplugged_cpus(); } |