diff options
| author | Janosch Frank <frankja@linux.ibm.com> | 2020-04-29 10:35:12 -0400 |
|---|---|---|
| committer | David Hildenbrand <david@redhat.com> | 2020-04-30 16:52:14 +0200 |
| commit | 1916fbead27a55df916f1c46f789a76d5837e384 (patch) | |
| tree | 339570b157b4d727746e43bd2b59af1bbe4e9156 | |
| parent | fc67b07a4b5183a336f254bc886f9032f603bd5b (diff) | |
| download | kvm-unit-tests-1916fbead27a55df916f1c46f789a76d5837e384.tar.gz | |
s390x: smp: Test local interrupts after cpu reset
Local interrupts (external and emergency call) should be cleared after
any cpu reset.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200429143518.1360468-5-frankja@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
| -rw-r--r-- | s390x/smp.c | 21 |
1 files changed, 21 insertions, 0 deletions
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(); } |