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([2804:7f0:b401:391e:3e7c:3fff:fe7a:e83b]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-72748e8539fsm273045a12.66.2024.06.26.21.14.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Jun 2024 21:14:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1719461659; x=1720066459; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=4TUFa5RFEE0mlvWgiU9FcmbW/faCfrest43wgdD9lPk=; b=vvN0YkCBTLK4YloTkcxWScgPWFioB3uCSpLaARo5uqs2t1pQLS+WNg66O7PACMl8jL EfLx+ORXPGoE94/nDDpwuV/ggEvCg+cKiSJeAhtMGYiZyQsTuWN6CxzsjN9fn7hfICYa owUppWaJsR+jdtZ8w6eVyupBivDKY1XpaehPWXYz0SP71f1/UI9qIbSLs6Ur0U3zHIWt oc8CQuMO+AYgQOz0Tmvf4GDW9bC4D/WD9lH1wRoIjixTxaAgyvS4oVns4AA7MdSFdHiY 5vja6Mxzvsz6F7ZzgsF0jWy5Ls4NyhyoYMGs/KiWrTo9+Qg+zCkzu4sgFAYZociJwdZ3 j7SQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719461659; x=1720066459; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=4TUFa5RFEE0mlvWgiU9FcmbW/faCfrest43wgdD9lPk=; b=ikWdypruOC9U11F3txMiFkAbwDG417mWG0SIUezeKsPTZJVdKR+KSIUqDBcEF6fwyi S5yJZRVyLJzJ/sW0x1ZLhCe6g4pFlFx4WSpVRluKsw1RGsCkLiZ3Tmw85cIzIKKpsDej MOuaDWdaqqFHfUqez8zIVAp6knt8+nWSpx22y6CYGzT2KX/XhoxdcEaSiUTPLTQD6Pcz i/IaaOb8xHTvgYbY109i0s4TWPJaw/XBIi2s8sTP9c0zLWD7EWR36wH17BY0nHkBgxqG qaKTavEwzWwTDwmCBQi7LxqQmtJ+U+9LmiDXqKnAN+U2QidRMUi+nsUYJHHvVb85ulEg TYfQ== X-Gm-Message-State: AOJu0YwH+AOEDTiRdrtvgQIiLi9hYg/lbuB98vWJPVurSiYnRgS6PnA0 mmuy72Ook61DHX4C0pvNpD/KAEzj2o83fdpnDtIVA2kwJnvx0NLjmlJX03NWbcClyAY2xa+ylgo CwRQ= X-Google-Smtp-Source: AGHT+IFT0cpYxqD1l+e4JVDfk+ffYxoTYE+C5fMDWBGWZltjgRlOX0SN1GMj/PlGDMPfJQz1uefIaQ== X-Received: by 2002:a05:6a00:2354:b0:706:3d61:4b21 with SMTP id d2e1a72fcca58-706913a1c4cmr12001048b3a.3.1719461658833; Wed, 26 Jun 2024 21:14:18 -0700 (PDT) From: Gustavo Romero To: qemu-devel@nongnu.org, philmd@linaro.org, alex.bennee@linaro.org, richard.henderson@linaro.org Cc: peter.maydell@linaro.org, gustavo.romero@linaro.org Subject: [PATCH v5 4/9] target/arm: Fix exception case in allocation_tag_mem_probe Date: Thu, 27 Jun 2024 04:13:44 +0000 Message-Id: <20240627041349.356704-5-gustavo.romero@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240627041349.356704-1-gustavo.romero@linaro.org> References: <20240627041349.356704-1-gustavo.romero@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2607:f8b0:4864:20::436; envelope-from=gustavo.romero@linaro.org; helo=mail-pf1-x436.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: 1719461804285100001 If page in 'ptr_access' is inaccessible and probe is 'true' allocation_tag_mem_probe should not throw an exception, but currently it does, so fix it. Signed-off-by: Gustavo Romero Reviewed-by: Alex Benn=C3=A9e Reviewed-by: Richard Henderson --- target/arm/tcg/mte_helper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/target/arm/tcg/mte_helper.c b/target/arm/tcg/mte_helper.c index 037ac6dd60..a50d576294 100644 --- a/target/arm/tcg/mte_helper.c +++ b/target/arm/tcg/mte_helper.c @@ -96,6 +96,9 @@ static uint8_t *allocation_tag_mem_probe(CPUARMState *env= , int ptr_mmu_idx, assert(!(probe && ra)); =20 if (!(flags & (ptr_access =3D=3D MMU_DATA_STORE ? PAGE_WRITE_ORG : PAG= E_READ))) { + if (probe) { + return NULL; + } cpu_loop_exit_sigsegv(env_cpu(env), ptr, ptr_access, !(flags & PAGE_VALID), ra); } --=20 2.34.1