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Tue, 6 Apr 2021 07:40:40 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 795984C05E; Tue, 6 Apr 2021 07:41:00 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2C9C54C040; Tue, 6 Apr 2021 07:41:00 +0000 (GMT) Received: from oc3016276355.ibm.com (unknown [9.145.42.152]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 6 Apr 2021 07:41:00 +0000 (GMT) From: Pierre Morel To: kvm@vger.kernel.org Cc: frankja@linux.ibm.com, david@redhat.com, thuth@redhat.com, cohuck@redhat.com, imbrenda@linux.ibm.com Subject: [kvm-unit-tests PATCH v3 16/16] s390x: css: testing clear subchannel Date: Tue, 6 Apr 2021 09:40:53 +0200 Message-Id: <1617694853-6881-17-git-send-email-pmorel@linux.ibm.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1617694853-6881-1-git-send-email-pmorel@linux.ibm.com> References: <1617694853-6881-1-git-send-email-pmorel@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: ntor66Bfk_hU-4nrnr2k5738V4j0e6FB X-Proofpoint-ORIG-GUID: KxBllOLbq0CWc9elqMcYBrUB_Lv9LfCA X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.761 definitions=2021-04-06_01:2021-04-01,2021-04-06 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxscore=0 mlxlogscore=880 spamscore=0 lowpriorityscore=0 adultscore=0 phishscore=0 impostorscore=0 suspectscore=0 clxscore=1015 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104030000 definitions=main-2104060050 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Checking return values for CSCH for various configurations. Signed-off-by: Pierre Morel --- s390x/css.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) diff --git a/s390x/css.c b/s390x/css.c index 0f80a44..00c77c7 100644 --- a/s390x/css.c +++ b/s390x/css.c @@ -362,6 +362,69 @@ static void test_hsch(void) free_io_mem(ccw, sizeof(*ccw)); } +static void test_csch(void) +{ + struct orb orb = { + .intparm = test_device_sid, + .ctrl = ORB_CTRL_ISIC | ORB_CTRL_FMT | ORB_LPM_DFLT, + }; + struct ccw1 *ccw; + + senseid = alloc_io_mem(sizeof(*senseid), 0); + assert(senseid); + ccw = ccw_alloc(CCW_CMD_SENSE_ID, senseid, sizeof(*senseid), CCW_F_SLI); + assert(ccw); + orb.cpa = (uint64_t)ccw; + + /* CSCH is a privilege operation */ + report_prefix_push("Privilege"); + enter_pstate(); + expect_pgm_int(); + csch(test_device_sid); + check_pgm_int_code(PGM_INT_CODE_PRIVILEGED_OPERATION); + report_prefix_pop(); + + /* Basic check for CSCH */ + report_prefix_push("CSCH on a quiet subchannel"); + assert(css_enable(test_device_sid, 0) == 0); + report(csch(test_device_sid) == 0, "subchannel clear"); + report_prefix_pop(); + + /* now we check the flags */ + report_prefix_push("IRQ flags"); + assert(tsch(test_device_sid, &irb) == 0); + report(check_io_completion(test_device_sid, SCSW_CSCH_COMPLETED) == 0, "expected"); + report_prefix_pop(); + + /* We want to check if the IRQ flags of SSCH are erased by clear */ + report_prefix_push("CSCH on SSCH status pending subchannel"); + assert(ssch(test_device_sid, &orb) == 0); + report(csch(test_device_sid) == 0, "subchannel cleared"); + assert(tsch(test_device_sid, &irb) == 0); + check_io_completion(test_device_sid, SCSW_CSCH_COMPLETED | + SCSW_SC_SECONDARY | SCSW_SC_PRIMARY); + report_prefix_pop(); + + /* Checking CSCH after HSCH */ + report_prefix_push("CSCH on a halted subchannel"); + assert(hsch(test_device_sid) == 0); + report(csch(test_device_sid) == 0, "subchannel cleared"); + assert(tsch(test_device_sid, &irb) == 0); + check_io_completion(test_device_sid, SCSW_CSCH_COMPLETED); + report_prefix_pop(); + + /* Checking CSCH after CSCH */ + report_prefix_push("CSCH on a cleared subchannel"); + assert(csch(test_device_sid) == 0); + report(csch(test_device_sid) == 0, "subchannel cleared"); + assert(tsch(test_device_sid, &irb) == 0); + check_io_completion(test_device_sid, SCSW_CSCH_COMPLETED); + report_prefix_pop(); + + free_io_mem(senseid, sizeof(*senseid)); + free_io_mem(ccw, sizeof(*ccw)); +} + /* * test_sense * Pre-requisites: @@ -632,6 +695,7 @@ static struct tests tests[] = { { "enable (msch)", test_enable }, { "start subchannel", test_ssch }, { "halt subchannel", test_hsch }, + { "clear subchannel", test_csch }, { "sense (ssch/tsch)", test_sense }, { "measurement block (schm)", test_schm }, { "measurement block format0", test_schm_fmt0 },