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Wed, 19 Jul 2023 09:46:23 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 99F762004D; Wed, 19 Jul 2023 09:46:23 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.155.200.166]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 19 Jul 2023 09:46:23 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , David Hildenbrand , Thomas Huth Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Ilya Leoshkevich , qemu-stable@nongnu.org Subject: [PATCH v2 01/14] target/s390x: Make CKSM raise an exception if R2 is odd Date: Wed, 19 Jul 2023 11:44:11 +0200 Message-ID: <20230719094620.363206-2-iii@linux.ibm.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230719094620.363206-1-iii@linux.ibm.com> References: <20230719094620.363206-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: n2bnSAPIqRtxnolNcX0mZvgyU8IhPj4h X-Proofpoint-ORIG-GUID: EFFFCu_pxb6FWDkmb7l4wEh64AVxYN3m X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-19_06,2023-07-18_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 mlxscore=0 impostorscore=0 phishscore=0 priorityscore=1501 clxscore=1015 mlxlogscore=716 adultscore=0 spamscore=0 malwarescore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307190087 Received-SPF: pass client-ip=148.163.156.1; envelope-from=iii@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org R2 designates an even-odd register pair; the instruction should raise a specification exception when R2 is not even. Cc: qemu-stable@nongnu.org Fixes: e023e832d0ac ("s390x: translate engine for s390x CPU") Reviewed-by: David Hildenbrand Signed-off-by: Ilya Leoshkevich --- target/s390x/tcg/translate.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c index 6661b27efa4..2f61e879878 100644 --- a/target/s390x/tcg/translate.c +++ b/target/s390x/tcg/translate.c @@ -1991,11 +1991,18 @@ static DisasJumpType op_cxlgb(DisasContext *s, DisasOps *o) static DisasJumpType op_cksm(DisasContext *s, DisasOps *o) { int r2 = get_field(s, r2); - TCGv_i128 pair = tcg_temp_new_i128(); - TCGv_i64 len = tcg_temp_new_i64(); + TCGv_i128 pair; + TCGv_i64 len; + + if (r2 & 1) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + pair = tcg_temp_new_i128(); gen_helper_cksm(pair, cpu_env, o->in1, o->in2, regs[r2 + 1]); set_cc_static(s); + len = tcg_temp_new_i64(); tcg_gen_extr_i128_i64(o->out, len, pair); tcg_gen_add_i64(regs[r2], regs[r2], len);