diff mbox series

[v3,03/10] s390x: smp: Test stop and store status on a running and stopped cpu

Message ID 20200429143518.1360468-4-frankja@linux.ibm.com (mailing list archive)
State New, archived
Headers show
Series s390x: smp: Improve smp code part 2 | expand

Commit Message

Janosch Frank April 29, 2020, 2:35 p.m. UTC 
Let's also test the stop portion of the "stop and store status" sigp
order.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
---
 s390x/smp.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/s390x/smp.c b/s390x/smp.c
index b07cb66..4c50183 100644
--- a/s390x/smp.c
+++ b/s390x/smp.c
@@ -76,12 +76,26 @@  static void test_stop_store_status(void)
 	struct lowcore *lc = (void *)0x0;
 
 	report_prefix_push("stop store status");
+	report_prefix_push("running");
+	smp_cpu_restart(1);
 	lc->prefix_sa = 0;
 	lc->grs_sa[15] = 0;
 	smp_cpu_stop_store_status(1);
 	mb();
 	report(lc->prefix_sa == (uint32_t)(uintptr_t)cpu->lowcore, "prefix");
 	report(lc->grs_sa[15], "stack");
+	report(smp_cpu_stopped(1), "cpu stopped");
+	report_prefix_pop();
+
+	report_prefix_push("stopped");
+	lc->prefix_sa = 0;
+	lc->grs_sa[15] = 0;
+	smp_cpu_stop_store_status(1);
+	mb();
+	report(lc->prefix_sa == (uint32_t)(uintptr_t)cpu->lowcore, "prefix");
+	report(lc->grs_sa[15], "stack");
+	report_prefix_pop();
+
 	report_prefix_pop();
 }