[kvm-unit-tests 1/2] s390x/smp: fix detection of "running"

[Christian Borntraeger <borntraeger@de.ibm.com>]

On s390x hosts with a single CPU, the smp test case hangs (loops).
The check is our restart has finished is wrong.
Sigp sense running status checks if the CPU is currently backed by a
real CPU. This means that on single CPU hosts a sigp sense running
will never claim that a target is running. We need to check for not
being stopped instead.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
 lib/s390x/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/s390x/smp.c b/lib/s390x/smp.c
index 2555bf4..5ed8b7b 100644
--- a/lib/s390x/smp.c
+++ b/lib/s390x/smp.c
@@ -128,7 +128,7 @@ static int smp_cpu_restart_nolock(uint16_t addr, struct psw *psw)
 	 * The order has been accepted, but the actual restart may not
 	 * have been performed yet, so wait until the cpu is running.
 	 */
-	while (!smp_cpu_running(addr))
+	while (smp_cpu_stopped(addr))
 		mb();
 	cpu->active = true;
 	return 0;
-- 
2.25.1