From nobody Sun Nov 24 21:00:08 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1720532803; cv=none; d=zohomail.com; s=zohoarc; b=mpt2+FJNFUeAGKgGTmXKtViSMCFnVW4GMQ2xXKRgJ+ll735WCSMDB1BiBo4XADd/xz/gkZ8WTIkejuYk/XmZPVMJrYCBFoyl4bPrXPz72k4H9fgvzOPsXfuJfcA2UWVqv3kaMCN21P3UUe/d/uGmyO6mSvbK+LGFsSUd5LQl/GY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1720532803; h=Content-Transfer-Encoding:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To:Cc; bh=6Dy9tTmWCONrl3V4OHSFlfMTEYKzq0YJeFJJEkMNS3s=; b=GssiFhfkvhD8t+JEDuoctgGsXodoRBcZ/+hnauqaRxY5Kl+Ids85aox8uGK+67lmoj+01MnTfM+duXUU5tt2SNB2siO67Ze3xUXm9f3yEI/LSfRCOzDMFogqkKn2UNKILfe5AcbfwvGv2u4VaCqdtPIlm8NaW+biffnGwqSkaFo= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1720532803211128.1114193824883; Tue, 9 Jul 2024 06:46:43 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sRB9v-0001po-8B; Tue, 09 Jul 2024 09:45:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sRB9m-0001gZ-Tw for qemu-devel@nongnu.org; Tue, 09 Jul 2024 09:45:24 -0400 Received: from mail-wm1-x332.google.com ([2a00:1450:4864:20::332]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sRB9Z-0002Ic-BX for qemu-devel@nongnu.org; Tue, 09 Jul 2024 09:45:20 -0400 Received: by mail-wm1-x332.google.com with SMTP id 5b1f17b1804b1-426526d30aaso28645745e9.0 for ; Tue, 09 Jul 2024 06:45:07 -0700 (PDT) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4264a1f22acsm210426605e9.24.2024.07.09.06.45.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Jul 2024 06:45:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1720532707; x=1721137507; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=6Dy9tTmWCONrl3V4OHSFlfMTEYKzq0YJeFJJEkMNS3s=; b=alWsvwfhzHnK2URrWjrt8vbIVzzFbZM9aBR8ufViCm4XnoxDUoDTBHR19/R6xIhjHd T/P0aaGy9r7Nt+pMGTCsdihfNQuxq0P2Kntu/XLzufb+7wta7J7LCy4ka1HFcAxHhjU6 oKjTkUaJ8NeaylYWs7uKQbp+w/TIT6ixi7pt9Q7b3R9SpumbgHH2Jid0pH3HYA3B0tKh W0rtYY+1PBNL5lLk5wgZJnHX54Jyjm2F2baqBKgi8wd1e6pI4cqECHm34DXmll1W3l6c bKxo4ouiZUUVcOsaSTcy7fbH1l1CK3ix6DchyxXrD/sHIM5/YOikCux4+EfVs26kG58W eZ1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720532707; x=1721137507; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=6Dy9tTmWCONrl3V4OHSFlfMTEYKzq0YJeFJJEkMNS3s=; b=E+QEiQ5vaMT2AB3MAmvdVcG9IovBPAIoDIYplWKbHRmfMhnXdNP095WBpZRPid43KD h0j2H3fxExaqqTc3Lf+zbZAVCd6lqXl6XOIbPPxahQyOoRLG9ufxpuW0GShC/AOBMPqy DwBnsyBAkxkDfc4QbxpoGrPI2xikaGaWeLxoBLAh/+D6Gsd5vr9F/+S5L7hMuytiq+BJ DQNkb8UVWXpwocODaWoXYtgEzvFivza8zlK6dETLov50bL92pg1nv2d0OjIN5aR5j+fX LCG2COaRfiIO89abctaZV6puDCs3fkjfV0of/G84XKvYpHrRcam3pRbmU0gnJBTV4oVC e0AQ== X-Forwarded-Encrypted: i=1; AJvYcCVoptHHpOJjI0rmWiWbJ/+rDsN7V5qpp5d2qGX1Hb2zVh2Dqy7scSV3RIkviypBmaeuQJOHH9pRnr/g/4BdSV3nko0DSY8= X-Gm-Message-State: AOJu0Yy4rAz6q5BPd1WJUOmVJeN9D9F4eVbb1tCZQVwDP7x+nenP+QcR H3BcuYY6lFMdAMyZ2i3HWnnfEwMCMsg4rq+eOo36GeRsFgo+pt8BqjrYnh1wbZS6kAJisJAKrTe xpOQ= X-Google-Smtp-Source: AGHT+IEp/dMayW4UQ93nGxgYCGP/0yh3e/c0RnkuTfvSS5LZbFcCO6nfLd53cOiNVs7nQj1t+qdwYQ== X-Received: by 2002:a05:600c:4a98:b0:426:64a2:5362 with SMTP id 5b1f17b1804b1-426707cf1bdmr19111725e9.8.1720532706866; Tue, 09 Jul 2024 06:45:06 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 2/2] target/arm: LDAPR should honour SCTLR_ELx.nAA Date: Tue, 9 Jul 2024 14:45:04 +0100 Message-Id: <20240709134504.3500007-3-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240709134504.3500007-1-peter.maydell@linaro.org> References: <20240709134504.3500007-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::332; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x332.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1720532804599116600 Content-Type: text/plain; charset="utf-8" In commit c1a1f80518d360b when we added the FEAT_LSE2 relaxations to the alignment requirements for atomic and ordered loads and stores, we didn't quite get it right for LDAPR/LDAPRH/LDAPRB with no immediate offset. These instructions were handled in the old decoder as part of disas_ldst_atomic(), but unlike all the other insns that function decoded (LDADD, LDCLR, etc) these insns are "ordered", not "atomic", so they should be using check_ordered_align() rather than check_atomic_align(). Commit c1a1f80518d360b used check_atomic_align() regardless for everything in disas_ldst_atomic(). We then carried that incorrect check over in the decodetree conversion, where LDAPR/LDAPRH/LDAPRB are now handled by trans_LDAPR(). The effect is that when FEAT_LSE2 is implemented, these instructions don't honour the SCTLR_ELx.nAA bit and will generate alignment faults when they should not. (The LDAPR insns with an immediate offset were in disas_ldst_ldapr_stlr() and then in trans_LDAPR_i() and trans_STLR_i(), and have always used the correct check_ordered_align().) Use check_ordered_align() in trans_LDAPR(). Cc: qemu-stable@nongnu.org Fixes: c1a1f80518d360b ("target/arm: Relax ordered/atomic alignment checks = for LSE2") Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 6c07aeaf3bd..5ea204d5009 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -3543,7 +3543,7 @@ static bool trans_LDAPR(DisasContext *s, arg_LDAPR *a) if (a->rn =3D=3D 31) { gen_check_sp_alignment(s); } - mop =3D check_atomic_align(s, a->rn, a->sz); + mop =3D check_ordered_align(s, a->rn, 0, false, a->sz); clean_addr =3D gen_mte_check1(s, cpu_reg_sp(s, a->rn), false, a->rn !=3D 31, mop); /* --=20 2.34.1