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Tsirkin" To: qemu-devel@nongnu.org Subject: [PULL 03/52] virtio: introduce macro IRTIO_CONFIG_IRQ_IDX Message-ID: <20220106131534.423671-4-mst@redhat.com> References: <20220106131534.423671-1-mst@redhat.com> MIME-Version: 1.0 In-Reply-To: <20220106131534.423671-1-mst@redhat.com> X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mst@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=170.10.129.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.372, 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_H3=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Cindy Lu , Jason Wang , "Dr. David Alan Gilbert" , virtio-fs@redhat.com, "Gonglei \(Arei\)" , Gerd Hoffmann , Stefan Hajnoczi , =?utf-8?Q?Marc-Andr=C3=A9?= Lureau Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Cindy Lu To support configure interrupt for vhost-vdpa Introduce VIRTIO_CONFIG_IRQ_IDX -1 as configure interrupt's queue index, Then we can reuse the functions guest_notifier_mask and guest_notifier_pending. Add the check of queue index in these drivers, if the driver does not support configure interrupt, the function will just return Signed-off-by: Cindy Lu Message-Id: <20211104164827.21911-2-lulu@redhat.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/virtio/virtio.h | 3 +++ hw/display/vhost-user-gpu.c | 6 ++++++ hw/net/virtio-net.c | 10 ++++++++-- hw/virtio/vhost-user-fs.c | 6 ++++++ hw/virtio/vhost-vsock-common.c | 6 ++++++ hw/virtio/virtio-crypto.c | 6 ++++++ 6 files changed, 35 insertions(+), 2 deletions(-) diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 8bab9cfb75..605ea79c90 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -67,6 +67,9 @@ typedef struct VirtQueueElement #define VIRTIO_NO_VECTOR 0xffff +/* special index value used internally for config irqs */ +#define VIRTIO_CONFIG_IRQ_IDX -1 + #define TYPE_VIRTIO_DEVICE "virtio-device" OBJECT_DECLARE_TYPE(VirtIODevice, VirtioDeviceClass, VIRTIO_DEVICE) diff --git a/hw/display/vhost-user-gpu.c b/hw/display/vhost-user-gpu.c index 09818231bd..d4a440e815 100644 --- a/hw/display/vhost-user-gpu.c +++ b/hw/display/vhost-user-gpu.c @@ -485,6 +485,9 @@ vhost_user_gpu_guest_notifier_pending(VirtIODevice *vdev, int idx) { VhostUserGPU *g = VHOST_USER_GPU(vdev); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return false; + } return vhost_virtqueue_pending(&g->vhost->dev, idx); } @@ -493,6 +496,9 @@ vhost_user_gpu_guest_notifier_mask(VirtIODevice *vdev, int idx, bool mask) { VhostUserGPU *g = VHOST_USER_GPU(vdev); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return; + } vhost_virtqueue_mask(&g->vhost->dev, vdev, idx, mask); } diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index cf8ab0f8af..5e03c0dd14 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -3168,6 +3168,9 @@ static bool virtio_net_guest_notifier_pending(VirtIODevice *vdev, int idx) VirtIONet *n = VIRTIO_NET(vdev); NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(idx)); assert(n->vhost_started); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return false; + } return vhost_net_virtqueue_pending(get_vhost_net(nc->peer), idx); } @@ -3177,8 +3180,11 @@ static void virtio_net_guest_notifier_mask(VirtIODevice *vdev, int idx, VirtIONet *n = VIRTIO_NET(vdev); NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(idx)); assert(n->vhost_started); - vhost_net_virtqueue_mask(get_vhost_net(nc->peer), - vdev, idx, mask); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return; + } + + vhost_net_virtqueue_mask(get_vhost_net(nc->peer), vdev, idx, mask); } static void virtio_net_set_config_size(VirtIONet *n, uint64_t host_features) diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c index c595957983..9b0349922e 100644 --- a/hw/virtio/vhost-user-fs.c +++ b/hw/virtio/vhost-user-fs.c @@ -161,6 +161,9 @@ static void vuf_guest_notifier_mask(VirtIODevice *vdev, int idx, { VHostUserFS *fs = VHOST_USER_FS(vdev); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return; + } vhost_virtqueue_mask(&fs->vhost_dev, vdev, idx, mask); } @@ -168,6 +171,9 @@ static bool vuf_guest_notifier_pending(VirtIODevice *vdev, int idx) { VHostUserFS *fs = VHOST_USER_FS(vdev); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return false; + } return vhost_virtqueue_pending(&fs->vhost_dev, idx); } diff --git a/hw/virtio/vhost-vsock-common.c b/hw/virtio/vhost-vsock-common.c index 3f3771274e..d1b9c027b6 100644 --- a/hw/virtio/vhost-vsock-common.c +++ b/hw/virtio/vhost-vsock-common.c @@ -125,6 +125,9 @@ static void vhost_vsock_common_guest_notifier_mask(VirtIODevice *vdev, int idx, { VHostVSockCommon *vvc = VHOST_VSOCK_COMMON(vdev); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return; + } vhost_virtqueue_mask(&vvc->vhost_dev, vdev, idx, mask); } @@ -133,6 +136,9 @@ static bool vhost_vsock_common_guest_notifier_pending(VirtIODevice *vdev, { VHostVSockCommon *vvc = VHOST_VSOCK_COMMON(vdev); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return false; + } return vhost_virtqueue_pending(&vvc->vhost_dev, idx); } diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c index 54f9bbb789..1d5192f8b4 100644 --- a/hw/virtio/virtio-crypto.c +++ b/hw/virtio/virtio-crypto.c @@ -948,6 +948,9 @@ static void virtio_crypto_guest_notifier_mask(VirtIODevice *vdev, int idx, assert(vcrypto->vhost_started); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return; + } cryptodev_vhost_virtqueue_mask(vdev, queue, idx, mask); } @@ -958,6 +961,9 @@ static bool virtio_crypto_guest_notifier_pending(VirtIODevice *vdev, int idx) assert(vcrypto->vhost_started); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return false; + } return cryptodev_vhost_virtqueue_pending(vdev, queue, idx); } -- MST