From: Bharata B Rao <bhar...@linux.vnet.ibm.com>
Ensure that the unplugged CPU thread is destroyed and the waiting
thread is notified about it. This is needed for CPU unplug to work
correctly in MTTCG mode.
Signed-off-by: Bharata B Rao <bhar...@linux.vnet.ibm.com>
Signed-off-by: Nikunj A Dadhania <nik...@linux.vnet.ibm.com>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
cpus.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/cpus.c b/cpus.c
index 740b8dc..79f780b 100644
--- a/cpus.c
+++ b/cpus.c
@@ -1483,6 +1483,12 @@ static void *qemu_tcg_cpu_thread_fn(void *arg)
/* Ignore everything else? */
break;
}
+ } else if (cpu->unplug) {
+ qemu_tcg_destroy_vcpu(cpu);
+ cpu->created = false;
+ qemu_cond_signal(&qemu_cpu_cond);
+ qemu_mutex_unlock_iothread();
+ return NULL;
}
atomic_mb_set(&cpu->exit_request, 0);
--
2.9.3
