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([2804:7f0:b400:8dcb:3e7c:3fff:fe7a:e83b]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2c4a75ed69csm10641863a91.14.2024.06.16.23.29.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 Jun 2024 23:29:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1718605760; x=1719210560; 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=THKPrI8tkqIcVbNLqgSdh8XD5pC35UvKcKsvFX/vTJs=; b=sg015BifnO6gDhoP+juRO+UzUVbYkMwnVES/ZPAlKWtDUkiuP+IS6z9SJTwwkBgAwS NrgFhj43wyGsxFtjzhmlvEpplzCbSNIWuQJ4ENVzJl6LmJINCXlA7B9vb762ZI+ihF/3 ZXeSqcLRK9JiVqpZJujq7oR677vKaMdd2ocdFXlE9kGbx05AckKorbc8uikheN421Mna /3IupMSjbzBBu+fWSzZtY1mdispriQpVzCGt4MVKVSiircMoiyfhOTINeSkuq756vE/d qj9SKnThs3ip9Yeu9c/MXhE7Jh16bun5lDIv9Oq+Z4slzGW10lzpGUq1ErcHkLAXUjsS Tw+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718605760; x=1719210560; 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=THKPrI8tkqIcVbNLqgSdh8XD5pC35UvKcKsvFX/vTJs=; b=ZwIENE1o/H29hIH1H/MLgE0Lcprhrwb7kplVs5TxZyKzbmZPCymZRJzsx9FqrWjYMo CoR/HYQJmnNFo1Mh8hiEFesct8D3yc6daSYDVevDO2Esb+V245MJKweTotjHb0xQEoDB Kpu8xxxt4T9upHvqJqmOybSQoRS95S3fKgOqQU5f4eyXSlStAMpfqTcuX+KtiRDMrHPP GOMJDC+ElqmcE7h4cj6qWKnT4dzTvKvkM8Jx5NAsisKeEB1Z8/xBUuoCwKB+MX245QKj aaviWnfLe4N4wQKdcqCo+Z09cLKVUMxIpIzMznkFtAPoB47OaQz6o/pC0p2r0gSivQp1 7GJg== X-Gm-Message-State: AOJu0Yw6OmAbFdXy/jDvHIzfayPntRIKvBep0tMirPmau6YPTiOb9nFf cwtZ9ERS0jD0PqbOj1lNaJpRqHJzUHkh6tZWJICa4hIHbaVmH7FWPVFxXwY9Mpn7B9pWXLkQQH/ b X-Google-Smtp-Source: AGHT+IHidaaaQFDtARtlrcOvm2xzXUPIF5geZNmZz8kOLHcw8fg/3ZhdVCZNcXhnpnWegyNQYU2QVg== X-Received: by 2002:a17:90a:5d13:b0:2c3:274b:dfb0 with SMTP id 98e67ed59e1d1-2c4db24b497mr7594237a91.17.1718605760456; Sun, 16 Jun 2024 23:29:20 -0700 (PDT) From: Gustavo Romero To: qemu-devel@nongnu.org, philmd@linaro.org, peter.maydell@linaro.org, alex.bennee@linaro.org, richard.henderson@linaro.org Cc: gustavo.romero@linaro.org Subject: [PATCH v3 4/9] target/arm: Fix exception case in allocation_tag_mem_probe Date: Mon, 17 Jun 2024 06:28:44 +0000 Message-Id: <20240617062849.3531745-5-gustavo.romero@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240617062849.3531745-1-gustavo.romero@linaro.org> References: <20240617062849.3531745-1-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::1036; envelope-from=gustavo.romero@linaro.org; helo=mail-pj1-x1036.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, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1718605843315100005 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