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| author | Jason Wang <jasowang@redhat.com> | 2020-07-01 22:55:28 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-07-03 07:57:04 -0400 |
| commit | f19bcdfedd53ee93412d535a842a89fa27cae7f2 (patch) | |
| tree | baae0a0266790436eec086d18d91cca1b196e3b4 /hw/virtio/virtio-pci.c | |
| parent | b2a5f62a2284a8933f6f6cda48797b7263b96970 (diff) | |
| download | qemu-f19bcdfedd53ee93412d535a842a89fa27cae7f2.zip qemu-f19bcdfedd53ee93412d535a842a89fa27cae7f2.tar.gz qemu-f19bcdfedd53ee93412d535a842a89fa27cae7f2.tar.bz2 | |
virtio-pci: implement queue_enabled method
With version 1, we can detect whether a queue is enabled via
queue_enabled.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20200701145538.22333-5-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'hw/virtio/virtio-pci.c')
| -rw-r--r-- | hw/virtio/virtio-pci.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 7bc8c1c..8554cf2 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -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 = { |