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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 2/5] virtio: Add virtio_queue_get_rings Date: Tue, 28 Oct 2025 16:23:47 +0100 Message-ID: <20251028152351.1247812-3-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::22b; envelope-from=edgar.iglesias@gmail.com; helo=mail-lj1-x22b.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, 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 @gmail.com) X-ZM-MESSAGEID: 1761665115049158500 Content-Type: text/plain; charset="utf-8" From: "Edgar E. Iglesias" Signed-off-by: Edgar E. Iglesias --- hw/virtio/virtio.c | 16 ++++++++++++++++ include/hw/virtio/virtio.h | 2 ++ 2 files changed, 18 insertions(+) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 8a53fb5f93..fe7c635390 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -2379,6 +2379,22 @@ void virtio_queue_set_rings(VirtIODevice *vdev, int = n, hwaddr desc, virtio_init_region_cache(vdev, n); } =20 +void virtio_queue_get_rings(VirtIODevice *vdev, int n, hwaddr *desc, + hwaddr *avail, hwaddr *used) +{ + assert(vdev->vq[n].vring.num); + + if (desc) { + *desc =3D vdev->vq[n].vring.desc; + } + if (avail) { + *avail =3D vdev->vq[n].vring.avail; + } + if (used) { + *used =3D vdev->vq[n].vring.used; + } +} + void virtio_queue_set_num(VirtIODevice *vdev, int n, int num) { /* Don't allow guest to flip queue between existent and diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index d97529c3f1..8bceb115a3 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -361,6 +361,8 @@ int virtio_queue_get_max_num(VirtIODevice *vdev, int n); int virtio_get_num_queues(VirtIODevice *vdev); void virtio_queue_set_rings(VirtIODevice *vdev, int n, hwaddr desc, hwaddr avail, hwaddr used); +void virtio_queue_get_rings(VirtIODevice *vdev, int n, hwaddr *desc, + hwaddr *avail, hwaddr *used); void virtio_queue_update_rings(VirtIODevice *vdev, int n); void virtio_init_region_cache(VirtIODevice *vdev, int n); void virtio_queue_set_align(VirtIODevice *vdev, int n, int align); --=20 2.43.0