diff options
Diffstat (limited to 'hw/virtio/vhost.c')
| -rw-r--r-- | hw/virtio/vhost.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 3c0b537f89..b4b29413e6 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -174,6 +174,35 @@ static uint64_t vhost_get_log_size(struct vhost_dev *dev) return log_size; } +static int vhost_set_backend_type(struct vhost_dev *dev, + VhostBackendType backend_type) +{ + int r = 0; + + switch (backend_type) { +#ifdef CONFIG_VHOST_KERNEL + case VHOST_BACKEND_TYPE_KERNEL: + dev->vhost_ops = &kernel_ops; + break; +#endif +#ifdef CONFIG_VHOST_USER + case VHOST_BACKEND_TYPE_USER: + dev->vhost_ops = &user_ops; + break; +#endif +#ifdef CONFIG_VHOST_VDPA + case VHOST_BACKEND_TYPE_VDPA: + dev->vhost_ops = &vdpa_ops; + break; +#endif + default: + error_report("Unknown vhost backend type"); + r = -1; + } + + return r; +} + static struct vhost_log *vhost_log_alloc(uint64_t size, bool share) { Error *err = NULL; @@ -286,7 +315,7 @@ static int vhost_dev_has_iommu(struct vhost_dev *dev) * does not have IOMMU, there's no need to enable this feature * which may cause unnecessary IOTLB miss/update trnasactions. */ - return vdev->dma_as != &address_space_memory && + return virtio_bus_device_iommu_enabled(vdev) && virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM); } |