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Thu, 05 Jun 2025 09:26:54 -0700 (PDT) Received: from draig.lan ([185.126.160.19]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-addfae39c05sm260326266b.156.2025.06.05.09.26.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Jun 2025 09:26:53 -0700 (PDT) Received: from draig.lan (localhost [IPv6:::1]) by draig.lan (Postfix) with ESMTP id B6EE15F7F6; Thu, 05 Jun 2025 17:26:51 +0100 (BST) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: Nabih Estefan , Laurent Vivier , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Akihiko Odaki , Sriram Yagnaraman , Fabiano Rosas , Paolo Bonzini Subject: [PULL 04/17] tests/qtest: Avoid unaligned access in IGB test Date: Thu, 5 Jun 2025 17:26:37 +0100 Message-ID: <20250605162651.2614401-5-alex.bennee@linaro.org> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250605162651.2614401-1-alex.bennee@linaro.org> References: <20250605162651.2614401-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::629; envelope-from=alex.bennee@linaro.org; helo=mail-ej1-x629.google.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Nabih Estefan ../tests/qtest/libqos/igb.c:106:5: runtime error: load of misaligned address 0x562040be8e33 for type 'uint32_t', which requires 4 byte alignment Instead of straight casting the uint8_t array, we can use ldl_le_p and lduw_l_p to assure the unaligned access works properly against uint32_t and uint16_t. Signed-off-by: Nabih Estefan Reviewed-by: Laurent Vivier Tested-by: Laurent Vivier Reviewed-by: Richard Henderson Message-Id: <20250429155621.2028198-1-nabihestefan@google.com> [AJB: fix commit message, remove unneeded casts] Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Alex Bennée Message-ID: <20250603110204.838117-5-alex.bennee@linaro.org> diff --git a/tests/qtest/libqos/igb.c b/tests/qtest/libqos/igb.c index f40c4ec4cd..ab3ef6f0c3 100644 --- a/tests/qtest/libqos/igb.c +++ b/tests/qtest/libqos/igb.c @@ -104,10 +104,10 @@ static void igb_pci_start_hw(QOSGraphObject *obj) e1000e_macreg_write(&d->e1000e, E1000_RDT(0), 0); e1000e_macreg_write(&d->e1000e, E1000_RDH(0), 0); e1000e_macreg_write(&d->e1000e, E1000_RA, - le32_to_cpu(*(uint32_t *)address)); + ldl_le_p(address)); e1000e_macreg_write(&d->e1000e, E1000_RA + 4, E1000_RAH_AV | E1000_RAH_POOL_1 | - le16_to_cpu(*(uint16_t *)(address + 4))); + lduw_le_p(address + 4)); /* Set supported receive descriptor mode */ e1000e_macreg_write(&d->e1000e, -- 2.47.2