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Mon, 7 Aug 2023 16:35:50 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5891A20043; Mon, 7 Aug 2023 16:35:50 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CAE4320040; Mon, 7 Aug 2023 16:35:49 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.179.26.52]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 7 Aug 2023 16:35:49 +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 1/2] target/s390x: Use a 16-bit immediate in VREP Date: Mon, 7 Aug 2023 18:34:31 +0200 Message-ID: <20230807163459.849766-1-iii@linux.ibm.com> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Ype2AmCexr_6ADGznu27nI6frlaTSzsj X-Proofpoint-GUID: qY29k2R8H2L1JjUaS6UGXUYYyzmKrqGy X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-07_17,2023-08-03_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxlogscore=999 impostorscore=0 mlxscore=0 suspectscore=0 adultscore=0 malwarescore=0 priorityscore=1501 spamscore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308070153 Received-SPF: pass client-ip=148.163.158.5; envelope-from=iii@linux.ibm.com; helo=mx0b-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 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Unlike most other instructions that contain an immediate element index, VREP's one is 16-bit, and not 4-bit. The code uses only 8 bits, so using, e.g., 0x101 does not lead to a specification exception. Fix by checking all 16 bits. Cc: qemu-stable@nongnu.org Fixes: 28d08731b1d8 ("s390x/tcg: Implement VECTOR REPLICATE") Signed-off-by: Ilya Leoshkevich Reviewed-by: David Hildenbrand --- target/s390x/tcg/translate_vx.c.inc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/s390x/tcg/translate_vx.c.inc b/target/s390x/tcg/translate_vx.c.inc index f8df121d3d3..a6d840d4065 100644 --- a/target/s390x/tcg/translate_vx.c.inc +++ b/target/s390x/tcg/translate_vx.c.inc @@ -57,7 +57,7 @@ #define FPF_LONG 3 #define FPF_EXT 4 -static inline bool valid_vec_element(uint8_t enr, MemOp es) +static inline bool valid_vec_element(uint16_t enr, MemOp es) { return !(enr & ~(NUM_VEC_ELEMENTS(es) - 1)); } @@ -964,7 +964,7 @@ static DisasJumpType op_vpdi(DisasContext *s, DisasOps *o) static DisasJumpType op_vrep(DisasContext *s, DisasOps *o) { - const uint8_t enr = get_field(s, i2); + const uint16_t enr = get_field(s, i2); const uint8_t es = get_field(s, m4); if (es > ES_64 || !valid_vec_element(enr, es)) { From patchwork Mon Aug 7 16:34:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ilya Leoshkevich X-Patchwork-Id: 1818074 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=D7Frau4H; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RKMR73lxMz1yXs for ; Tue, 8 Aug 2023 02:36:51 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qT3DL-0005Xg-93; 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Mon, 7 Aug 2023 16:35:52 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0F1D920043; Mon, 7 Aug 2023 16:35:52 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8DACB20040; Mon, 7 Aug 2023 16:35:51 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.179.26.52]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 7 Aug 2023 16:35:51 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , David Hildenbrand , Thomas Huth Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Ilya Leoshkevich Subject: [PATCH 2/2] tests/tcg/s390x: Test VREP Date: Mon, 7 Aug 2023 18:34:32 +0200 Message-ID: <20230807163459.849766-2-iii@linux.ibm.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230807163459.849766-1-iii@linux.ibm.com> References: <20230807163459.849766-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: KHzGFRgn7qdaL4kiCwQAvnHExSnj4Bp_ X-Proofpoint-GUID: vlYLLxygZ6RYqWIBE89l9lfEVIkSHfNc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-07_17,2023-08-03_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 bulkscore=0 mlxscore=0 clxscore=1015 priorityscore=1501 spamscore=0 adultscore=0 mlxlogscore=969 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308070153 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 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/vrep.c | 81 +++++++++++++++++++++++++++++++++ 2 files changed, 82 insertions(+) create mode 100644 tests/tcg/s390x/vrep.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 1fc98099070..9548b6d4f51 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -59,6 +59,7 @@ Z13_TESTS=vistr Z13_TESTS+=lcbb Z13_TESTS+=locfhr Z13_TESTS+=vcksm +Z13_TESTS+=vrep $(Z13_TESTS): CFLAGS+=-march=z13 -O2 TESTS+=$(Z13_TESTS) diff --git a/tests/tcg/s390x/vrep.c b/tests/tcg/s390x/vrep.c new file mode 100644 index 00000000000..d5a3bd8eb20 --- /dev/null +++ b/tests/tcg/s390x/vrep.c @@ -0,0 +1,81 @@ +/* + * Test the VREP instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include +#include +#include +#include +#include +#include "vx.h" + +static void handle_sigill(int sig, siginfo_t *info, void *ucontext) +{ + mcontext_t *mcontext = &((ucontext_t *)ucontext)->uc_mcontext; + char *insn = (char *)info->si_addr; + + if (insn[0] != 0xe7 || insn[5] != 0x4d) { + _exit(EXIT_FAILURE); + } + + mcontext->gregs[2] = SIGILL; +} + +static inline __attribute__((__always_inline__)) unsigned long +vrep(S390Vector *v1, const S390Vector *v3, const uint16_t i2, const uint8_t m4) +{ + register unsigned long sig asm("r2") = -1; + + asm("vrep %[v1],%[v3],%[i2],%[m4]\n" + : [v1] "=v" (v1->v) + , [sig] "+r" (sig) + : [v3] "v" (v3->v) + , [i2] "i" (i2) + , [m4] "i" (m4)); + + return sig; +} + +int main(int argc, char *argv[]) +{ + S390Vector v3 = {.d[0] = 1, .d[1] = 2}; + struct sigaction act; + S390Vector v1; + int err; + + memset(&act, 0, sizeof(act)); + act.sa_sigaction = handle_sigill; + act.sa_flags = SA_SIGINFO; + err = sigaction(SIGILL, &act, NULL); + assert(err == 0); + + assert(vrep(&v1, &v3, 7, 0) == -1); + assert(v1.d[0] == 0x0101010101010101ULL); + assert(v1.d[1] == 0x0101010101010101ULL); + + assert(vrep(&v1, &v3, 7, 1) == -1); + assert(v1.d[0] == 0x0002000200020002ULL); + assert(v1.d[1] == 0x0002000200020002ULL); + + assert(vrep(&v1, &v3, 1, 2) == -1); + assert(v1.d[0] == 0x0000000100000001ULL); + assert(v1.d[1] == 0x0000000100000001ULL); + + assert(vrep(&v1, &v3, 1, 3) == -1); + assert(v1.d[0] == 2); + assert(v1.d[1] == 2); + + assert(vrep(&v1, &v3, 0x10, 0) == SIGILL); + assert(vrep(&v1, &v3, 0x101, 0) == SIGILL); + assert(vrep(&v1, &v3, 0x8, 1) == SIGILL); + assert(vrep(&v1, &v3, 0x108, 1) == SIGILL); + assert(vrep(&v1, &v3, 0x4, 2) == SIGILL); + assert(vrep(&v1, &v3, 0x104, 2) == SIGILL); + assert(vrep(&v1, &v3, 0x2, 3) == SIGILL); + assert(vrep(&v1, &v3, 0x102, 3) == SIGILL); + + return EXIT_SUCCESS; +}