Commit f19bcdfe authored by Jason Wang's avatar Jason Wang Committed by Michael S. Tsirkin
Browse files

virtio-pci: implement queue_enabled method 



With version 1, we can detect whether a queue is enabled via
queue_enabled.

Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarCindy Lu <lulu@redhat.com>
Message-Id: <20200701145538.22333-5-lulu@redhat.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Acked-by: default avatarJason Wang <jasowang@redhat.com>
parent b2a5f62a

hw/virtio/virtio-pci.c

+13 −0
Original line number Diff line number Diff line
@@ -1107,6 +1107,18 @@ static AddressSpace *virtio_pci_get_dma_as(DeviceState *d) 
    return pci_get_address_space(dev);

}



static bool virtio_pci_queue_enabled(DeviceState *d, int n)

{

    VirtIOPCIProxy *proxy = VIRTIO_PCI(d);

    VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);



    if (virtio_vdev_has_feature(vdev, VIRTIO_F_VERSION_1)) {

        return proxy->vqs[vdev->queue_sel].enabled;

    }



    return virtio_queue_enabled(vdev, n);

}



static int virtio_pci_add_mem_cap(VirtIOPCIProxy *proxy,

                                   struct virtio_pci_cap *cap)

{
@@ -2064,6 +2076,7 @@ static void virtio_pci_bus_class_init(ObjectClass *klass, void *data) 
    k->ioeventfd_enabled = virtio_pci_ioeventfd_enabled;

    k->ioeventfd_assign = virtio_pci_ioeventfd_assign;

    k->get_dma_as = virtio_pci_get_dma_as;

    k->queue_enabled = virtio_pci_queue_enabled;

}



static const TypeInfo virtio_pci_bus_info = {