From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:30274 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726659AbgDWJKa (ORCPT ); Thu, 23 Apr 2020 05:10:30 -0400 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03N922Mp097395 for ; Thu, 23 Apr 2020 05:10:30 -0400 Received: from e06smtp04.uk.ibm.com (e06smtp04.uk.ibm.com [195.75.94.100]) by mx0a-001b2d01.pphosted.com with ESMTP id 30k7rbrt6g-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 23 Apr 2020 05:10:29 -0400 Received: from localhost by e06smtp04.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 23 Apr 2020 10:09:39 +0100 From: Janosch Frank Subject: [PATCH v2 04/10] s390x: smp: Test local interrupts after cpu reset Date: Thu, 23 Apr 2020 05:10:07 -0400 In-Reply-To: <20200423091013.11587-1-frankja@linux.ibm.com> References: <20200423091013.11587-1-frankja@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <20200423091013.11587-5-frankja@linux.ibm.com> Sender: linux-s390-owner@vger.kernel.org List-ID: To: kvm@vger.kernel.org Cc: thuth@redhat.com, linux-s390@vger.kernel.org, david@redhat.com, borntraeger@de.ibm.com, cohuck@redhat.com Local interrupts (external and emergency call) should be cleared after any cpu reset. Signed-off-by: Janosch Frank Reviewed-by: Cornelia Huck --- s390x/smp.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/s390x/smp.c b/s390x/smp.c index 8a6cd1d..a8e3dd7 100644 --- a/s390x/smp.c +++ b/s390x/smp.c @@ -243,6 +243,20 @@ static void test_reset_initial(void) report_prefix_pop(); } +static void test_local_ints(void) +{ + unsigned long mask; + + expect_ext_int(); + /* 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; @@ -251,10 +265,18 @@ 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(); } -- 2.25.1