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Tsirkin" , Pierrick Bouvier , Nicholas Piggin , qemu-ppc@nongnu.org Subject: [PATCH v3 03/11] hw/virtio: Introduce VirtIODevice::access_is_big_endian boolean field Date: Mon, 2 Feb 2026 00:29:15 +0100 Message-ID: <20260201232924.93399-4-philmd@linaro.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260201232924.93399-1-philmd@linaro.org> References: <20260201232924.93399-1-philmd@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=2a00:1450:4864:20::32e; envelope-from=philmd@linaro.org; helo=mail-wm1-x32e.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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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: 1769988650086158500 VirtIODevice::access_is_big_endian boolean field, initialized on device reset, represents whether load/store accesses are ordered using big endianness. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- include/hw/virtio/virtio.h | 5 +++++ hw/virtio/virtio.c | 1 + 2 files changed, 6 insertions(+) diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 17b105c146d..7a4f7de7475 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -154,6 +154,11 @@ struct VirtIODevice VMChangeStateEntry *vmstate; char *bus_name; uint8_t device_endian; + /** + * @access_is_big_endian: whether load/store memory accesses are order= ed + * using big endianness. Might change during device resets. + */ + bool access_is_big_endian; /** * @user_guest_notifier_mask: gate usage of ->guest_notifier_mask() ca= llback. * This is used to suppress the masking of guest updates for diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 86fc0e262f7..242c207a591 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -3247,6 +3247,7 @@ void virtio_reset(VirtIODevice *vdev) /* System reset */ vdev->device_endian =3D virtio_default_endian(); } + vdev->access_is_big_endian =3D virtio_access_is_big_endian(vdev); =20 if (k->get_vhost) { struct vhost_dev *hdev =3D k->get_vhost(vdev); --=20 2.52.0