From: Janosch Frank <frankja@xxxxxxxxxxxxx>
Local interrupts (external and emergency call) should be cleared after
any cpu reset.
Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
Message-Id: <20200429143518.1360468-5-frankja@xxxxxxxxxxxxx>
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
s390x/smp.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/s390x/smp.c b/s390x/smp.c
index 57eacb2..447b998 100644
--- a/s390x/smp.c
+++ b/s390x/smp.c
@@ -258,6 +258,19 @@ static void test_reset_initial(void)
report_prefix_pop();
}
+static void test_local_ints(void)
+{
+ unsigned long mask;
+
+ /* Open masks for ecall and emcall */
+ ctl_set_bit(0, 13);
+ ctl_set_bit(0, 14);
+ mask = extract_psw_mask();
+ mask |= PSW_MASK_EXT;
+ load_psw_mask(mask);
+ set_flag(1);
+}
+
static void test_reset(void)
{
struct psw psw;
@@ -266,10 +279,18 @@ static void test_reset(void)
psw.addr = (unsigned long)test_func;
report_prefix_push("cpu reset");
+ sigp(1, SIGP_EMERGENCY_SIGNAL, 0, NULL);
+ sigp(1, SIGP_EXTERNAL_CALL, 0, NULL);
smp_cpu_start(1, psw);
sigp_retry(1, SIGP_CPU_RESET, 0, NULL);
report(smp_cpu_stopped(1), "cpu stopped");
+
+ set_flag(0);
+ psw.addr = (unsigned long)test_local_ints;
+ smp_cpu_start(1, psw);
+ wait_for_flag();
+ report(true, "local interrupts cleared");
report_prefix_pop();
}
--
2.25.3
