From nobody Fri Dec 19 20:11:57 2025 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=temperror (zoho.com: Error in retrieving data from DNS) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1554155418437517.3872987026132; Mon, 1 Apr 2019 14:50:18 -0700 (PDT) Received: from localhost ([127.0.0.1]:50381 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hB4or-000446-7u for importer@patchew.org; Mon, 01 Apr 2019 17:50:17 -0400 Received: from eggs.gnu.org ([209.51.188.92]:41757) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hB45X-0002Gh-Db for qemu-devel@nongnu.org; Mon, 01 Apr 2019 17:03:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hB45W-00042Z-8A for qemu-devel@nongnu.org; Mon, 01 Apr 2019 17:03:27 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:56834) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hB45V-0003us-EF for qemu-devel@nongnu.org; Mon, 01 Apr 2019 17:03:26 -0400 Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x31L2AZ3119067 for ; Mon, 1 Apr 2019 17:03:14 -0400 Received: from e32.co.us.ibm.com (e32.co.us.ibm.com [32.97.110.150]) by mx0a-001b2d01.pphosted.com with ESMTP id 2rkqt6070k-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 01 Apr 2019 17:03:12 -0400 Received: from localhost by e32.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 1 Apr 2019 22:02:58 +0100 Received: from b03ledav001.gho.boulder.ibm.com (b03ledav001.gho.boulder.ibm.com [9.17.130.232]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x31L2vL231195336 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 1 Apr 2019 21:02:57 GMT Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5FEA56E054; Mon, 1 Apr 2019 21:02:57 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2B95B6E056; Mon, 1 Apr 2019 21:02:57 +0000 (GMT) Received: from localhost (unknown [9.80.94.43]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 1 Apr 2019 21:02:57 +0000 (GMT) From: Michael Roth To: qemu-devel@nongnu.org Date: Mon, 1 Apr 2019 15:58:40 -0500 X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190401210011.16009-1-mdroth@linux.vnet.ibm.com> References: <20190401210011.16009-1-mdroth@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19040121-0004-0000-0000-000014F71F5F X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010857; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000283; SDB=6.01182941; UDB=6.00619269; IPR=6.00963684; MB=3.00026249; MTD=3.00000008; XFM=3.00000015; UTC=2019-04-01 21:03:00 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19040121-0005-0000-0000-00008B1BBF6A Message-Id: <20190401210011.16009-7-mdroth@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-04-01_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=978 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1904010136 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by mx0a-001b2d01.pphosted.com id x31L2AZ3119067 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH 06/97] target/arm: Fix sign-extension in sve do_ldr/do_str X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Richard Henderson , qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Richard Henderson The expression (int) imm + (uint32_t) len_align turns into uint32_t and thus with negative imm produces a memory operation at the wrong offset. None of the numbers involved are particularly large, so change everything to use int. Cc: qemu-stable@nongnu.org (3.0.1) Reported-by: Laurent Desnogues Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Peter Maydell (cherry picked from commit 19f2acc915a0f8f443a959844540a6f09133cc96) Signed-off-by: Michael Roth --- target/arm/translate-sve.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index 89efc80ee7..9e63b5f8e5 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -4372,12 +4372,11 @@ static bool trans_UCVTF_dd(DisasContext *s, arg_rpr= _esz *a, uint32_t insn) * The load should begin at the address Rn + IMM. */ =20 -static void do_ldr(DisasContext *s, uint32_t vofs, uint32_t len, - int rn, int imm) +static void do_ldr(DisasContext *s, uint32_t vofs, int len, int rn, int im= m) { - uint32_t len_align =3D QEMU_ALIGN_DOWN(len, 8); - uint32_t len_remain =3D len % 8; - uint32_t nparts =3D len / 8 + ctpop8(len_remain); + int len_align =3D QEMU_ALIGN_DOWN(len, 8); + int len_remain =3D len % 8; + int nparts =3D len / 8 + ctpop8(len_remain); int midx =3D get_mem_index(s); TCGv_i64 addr, t0, t1; =20 @@ -4458,12 +4457,11 @@ static void do_ldr(DisasContext *s, uint32_t vofs, = uint32_t len, } =20 /* Similarly for stores. */ -static void do_str(DisasContext *s, uint32_t vofs, uint32_t len, - int rn, int imm) +static void do_str(DisasContext *s, uint32_t vofs, int len, int rn, int im= m) { - uint32_t len_align =3D QEMU_ALIGN_DOWN(len, 8); - uint32_t len_remain =3D len % 8; - uint32_t nparts =3D len / 8 + ctpop8(len_remain); + int len_align =3D QEMU_ALIGN_DOWN(len, 8); + int len_remain =3D len % 8; + int nparts =3D len / 8 + ctpop8(len_remain); int midx =3D get_mem_index(s); TCGv_i64 addr, t0; =20 --=20 2.17.1