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Iglesias" To: qemu-devel@nongnu.org, "Michael S. Tsirkin" Cc: alex.bennee@linaro.org, bill.mills@linaro.org, edgar.iglesias@amd.com Subject: [PATCH v1 1/5] virtio: Introduce notify_queue Date: Tue, 28 Oct 2025 16:23:46 +0100 Message-ID: <20251028152351.1247812-2-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251028152351.1247812-1-edgar.iglesias@gmail.com> References: <20251028152351.1247812-1-edgar.iglesias@gmail.com> 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::236; envelope-from=edgar.iglesias@gmail.com; helo=mail-lj1-x236.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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, T_SPF_HELO_TEMPERROR=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 @gmail.com) X-ZM-MESSAGEID: 1761665187778158500 Content-Type: text/plain; charset="utf-8" From: "Edgar E. Iglesias" Signed-off-by: Edgar E. Iglesias --- hw/virtio/virtio.c | 7 +++++++ include/hw/virtio/virtio-bus.h | 1 + 2 files changed, 8 insertions(+) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 153ee0a0cf..8a53fb5f93 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -2700,12 +2700,19 @@ static void virtio_irq(VirtQueue *vq) =20 void virtio_notify(VirtIODevice *vdev, VirtQueue *vq) { + BusState *qbus =3D qdev_get_parent_bus(DEVICE(vdev)); + VirtioBusClass *k =3D VIRTIO_BUS_GET_CLASS(qbus); + WITH_RCU_READ_LOCK_GUARD() { if (!virtio_should_notify(vdev, vq)) { return; } } =20 + if (k->notify_queue) { + k->notify_queue(qbus->parent, virtio_get_queue_index(vq)); + } + trace_virtio_notify(vdev, vq); virtio_irq(vq); } diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h index 7ab8c9dab0..043dbeb4cf 100644 --- a/include/hw/virtio/virtio-bus.h +++ b/include/hw/virtio/virtio-bus.h @@ -39,6 +39,7 @@ DECLARE_OBJ_CHECKERS(VirtioBusState, VirtioBusClass, struct VirtioBusClass { /* This is what a VirtioBus must implement */ BusClass parent; + void (*notify_queue)(DeviceState *d, uint16_t index); void (*notify)(DeviceState *d, uint16_t vector); void (*save_config)(DeviceState *d, QEMUFile *f); void (*save_queue)(DeviceState *d, int n, QEMUFile *f); --=20 2.43.0