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(unknown [9.114.12.104]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 22 Sep 2021 07:18:59 +0000 (GMT) From: Janosch Frank To: kvm@vger.kernel.org Cc: thuth@redhat.com, david@redhat.com, linux-s390@vger.kernel.org, seiden@linux.ibm.com, imbrenda@linux.ibm.com Subject: [kvm-unit-tests PATCH 8/9] s390x: Add sthyi cc==0 r2+1 verification Date: Wed, 22 Sep 2021 07:18:10 +0000 Message-Id: <20210922071811.1913-9-frankja@linux.ibm.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210922071811.1913-1-frankja@linux.ibm.com> References: <20210922071811.1913-1-frankja@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: k2QngRA3HbkIWKRBschk2XnvVhY7I9mt X-Proofpoint-GUID: QvLWwR-cCOss4AMm5hwoq7KMhnvuC4er X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-09-22_02,2021-09-20_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 mlxlogscore=999 adultscore=0 mlxscore=0 bulkscore=0 phishscore=0 priorityscore=1501 suspectscore=0 clxscore=1015 impostorscore=0 spamscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109200000 definitions=main-2109220048 Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On success r2 + 1 should be 0, let's also check for that. Signed-off-by: Janosch Frank --- s390x/sthyi.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/s390x/sthyi.c b/s390x/sthyi.c index db90b56f..4b153bf4 100644 --- a/s390x/sthyi.c +++ b/s390x/sthyi.c @@ -24,16 +24,16 @@ static inline int sthyi(uint64_t vaddr, uint64_t fcode, uint64_t *rc, { register uint64_t code asm("0") = fcode; register uint64_t addr asm("2") = vaddr; - register uint64_t rc3 asm("3") = 0; + register uint64_t rc3 asm("3") = 42; int cc = 0; - asm volatile(".insn rre,0xB2560000,%[r1],%[r2]\n" - "ipm %[cc]\n" - "srl %[cc],28\n" - : [cc] "=d" (cc) - : [code] "d" (code), [addr] "a" (addr), [r1] "i" (r1), - [r2] "i" (r2) - : "memory", "cc", "r3"); + asm volatile( + ".insn rre,0xB2560000,%[r1],%[r2]\n" + "ipm %[cc]\n" + "srl %[cc],28\n" + : [cc] "=d" (cc), "+d" (rc3) + : [code] "d" (code), [addr] "a" (addr), [r1] "i" (r1), [r2] "i" (r2) + : "memory", "cc"); if (rc) *rc = rc3; return cc; @@ -139,16 +139,18 @@ static void test_fcode0(void) struct sthyi_hdr_sctn *hdr; struct sthyi_mach_sctn *mach; struct sthyi_par_sctn *par; + uint64_t rc = 42; /* Zero destination memory. */ memset(pagebuf, 0, PAGE_SIZE); report_prefix_push("fcode 0"); - sthyi((uint64_t)pagebuf, 0, NULL, 0, 2); + sthyi((uint64_t)pagebuf, 0, &rc, 0, 2); hdr = (void *)pagebuf; mach = (void *)pagebuf + hdr->INFMOFF; par = (void *)pagebuf + hdr->INFPOFF; + report(!rc, "r2 + 1 == 0"); test_fcode0_hdr(hdr); test_fcode0_mach(mach); test_fcode0_par(par); -- 2.30.2