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bh=BeNbSiH/MHVx9FqrvgesPLa7GE7RAy1abAUIrVRnGa4=; b=TcH+N9c1xKjKkJ1fKrvuGdrC44WnR6cVbvxPdvITzS9q/2nOcnevFqr1kGrJrKOeyvRFbF JfmDNWfaydGL6xPnr/7u3ORk0sEqCRWDvECCmcweabBhYRp2pUSYqlHjmztqqWxq202mDX UlA26R9JyhH8ODVnhci68w9NrEldbb8= X-MC-Unique: zBUJaK8hO0ChJDjOXxtmdA-1 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Subject: [RFC 05/10] vhost: Add vhost_dev_from_virtio Date: Fri, 29 Jan 2021 21:54:10 +0100 Message-Id: <20210129205415.876290-6-eperezma@redhat.com> In-Reply-To: <20210129205415.876290-1-eperezma@redhat.com> References: <20210129205415.876290-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eperezma@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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=63.128.21.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.249, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Parav Pandit , "Michael S. Tsirkin" , Jason Wang , Juan Quintela , Markus Armbruster , virtualization@lists.linux-foundation.org, Harpreet Singh Anand , Xiao W Wang , Stefan Hajnoczi , Eli Cohen , Stefano Garzarella , Michael Lilja , Jim Harford , Rob Miller Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Signed-off-by: Eugenio P=C3=A9rez --- include/hw/virtio/vhost.h | 1 + hw/virtio/vhost.c | 17 +++++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/include/hw/virtio/vhost.h b/include/hw/virtio/vhost.h index 4a8bc75415..fca076e3f0 100644 --- a/include/hw/virtio/vhost.h +++ b/include/hw/virtio/vhost.h @@ -123,6 +123,7 @@ uint64_t vhost_get_features(struct vhost_dev *hdev, con= st int *feature_bits, void vhost_ack_features(struct vhost_dev *hdev, const int *feature_bits, uint64_t features); bool vhost_has_free_slot(void); +struct vhost_dev *vhost_dev_from_virtio(const VirtIODevice *vdev); =20 int vhost_net_set_backend(struct vhost_dev *hdev, struct vhost_vring_file *file); diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 28c7d78172..8683d507f5 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -61,6 +61,23 @@ bool vhost_has_free_slot(void) return slots_limit > used_memslots; } =20 +/* + * Get the vhost device associated to a VirtIO device. + */ +struct vhost_dev *vhost_dev_from_virtio(const VirtIODevice *vdev) +{ + struct vhost_dev *hdev; + + QLIST_FOREACH(hdev, &vhost_devices, entry) { + if (hdev->vdev =3D=3D vdev) { + return hdev; + } + } + + assert(hdev); + return NULL; +} + static void vhost_dev_sync_region(struct vhost_dev *dev, MemoryRegionSection *section, uint64_t mfirst, uint64_t mlast, --=20 2.27.0