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bh=ua2MJPKyhckrhznbF0TFlcdA8jGgaynNIN8wY0tzrgw=; b=aFnwmSO6foyWc0uKfbe2AcjyZVTxHV7Omzp3oPqamccPQrpJQEQqae0uOlEvkxynWHoBeI MzCNMkzeNWVqEvCcdrEmD9+j0TWAbsKDwuabNGQgVuLPIusBa1oyEcr9zVFk65PhYNas/x Ohk1ebPUJXcilkh1MQ51d6519MTS5gc= X-MC-Unique: OIw5HKD1OhmFZwG7ZEizxg-1 From: Cindy Lu To: mst@redhat.com, jasowang@redhat.com, qemu-devel@nongnu.org Subject: [PATCH v2 4/5] virtio-mmio: add support for configure interrupt Date: Tue, 26 Jan 2021 15:03:50 +0800 Message-Id: <20210126070351.28575-5-lulu@redhat.com> In-Reply-To: <20210126070351.28575-1-lulu@redhat.com> References: <20210126070351.28575-1-lulu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=lulu@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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=lulu@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.255, 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: lulu@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" add configure interrupt support for virtio-mmio bus. This interrupt will working while backend is vhost-vdpa Signed-off-by: Cindy Lu --- hw/virtio/virtio-mmio.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c index e1b5c3b81e..d580f1ea9a 100644 --- a/hw/virtio/virtio-mmio.c +++ b/hw/virtio/virtio-mmio.c @@ -666,6 +666,21 @@ assign_error: return r; } =20 +static int virtio_mmio_set_config_notifier(DeviceState *d, bool assign) +{ + VirtIOMMIOProxy *proxy =3D VIRTIO_MMIO(d); + VirtIODevice *vdev =3D virtio_bus_get_device(&proxy->bus); + EventNotifier *notifier =3D virtio_get_config_notifier(vdev); + int r =3D 0; + if (assign) { + r =3D event_notifier_init(notifier, 0); + virtio_set_config_notifier_fd_handler(vdev, true, false); + } else { + virtio_set_config_notifier_fd_handler(vdev, false, false); + event_notifier_cleanup(notifier); + } + return r; +} static void virtio_mmio_pre_plugged(DeviceState *d, Error **errp) { VirtIOMMIOProxy *proxy =3D VIRTIO_MMIO(d); @@ -780,6 +795,7 @@ static void virtio_mmio_bus_class_init(ObjectClass *kla= ss, void *data) k->ioeventfd_assign =3D virtio_mmio_ioeventfd_assign; k->pre_plugged =3D virtio_mmio_pre_plugged; k->has_variable_vring_alignment =3D true; + k->set_config_notifiers =3D virtio_mmio_set_config_notifier; bus_class->max_dev =3D 1; bus_class->get_dev_path =3D virtio_mmio_bus_get_dev_path; } --=20 2.21.3