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vduse: enable Virtio-net device type

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This patch adds Virtio-net device type to the supported
devices types.

Initialization fails if the device does not support
VIRTIO_F_VERSION_1 feature, in order to guarantee the
configuration space is read-only. It also fails with
-EPERM if the CAP_NET_ADMIN is missing.

Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Message-Id: <20240109111025.1320976-4-maxime.coquelin@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
This commit is contained in:
Maxime Coquelin 2024-01-09 12:10:25 +01:00 committed by Michael S. Tsirkin
parent 56e71885b0
commit 894452180d
1 changed files with 10 additions and 0 deletions
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10
drivers/vdpa/vdpa_user/vduse_dev.c
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@ -143,6 +143,7 @@ static struct workqueue_struct *vduse_irq_bound_wq;
static u32 allowed_device_id[] = {
VIRTIO_ID_BLOCK,
VIRTIO_ID_NET,
};
static inline struct vduse_dev *vdpa_to_vduse(struct vdpa_device *vdpa)
@ -1720,6 +1721,10 @@ static bool features_is_valid(struct vduse_dev_config *config)
(config->features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ)))
return false;
if ((config->device_id == VIRTIO_ID_NET) &&
!(config->features & BIT_ULL(VIRTIO_F_VERSION_1)))
return false;
return true;
}
@ -1827,6 +1832,10 @@ static int vduse_create_dev(struct vduse_dev_config *config,
int ret;
struct vduse_dev *dev;
ret = -EPERM;
if ((config->device_id == VIRTIO_ID_NET) && !capable(CAP_NET_ADMIN))
goto err;
ret = -EEXIST;
if (vduse_find_dev(config->name))
goto err;
@ -2070,6 +2079,7 @@ static const struct vdpa_mgmtdev_ops vdpa_dev_mgmtdev_ops = {
static struct virtio_device_id id_table[] = {
{ VIRTIO_ID_BLOCK, VIRTIO_DEV_ANY_ID },
{ VIRTIO_ID_NET, VIRTIO_DEV_ANY_ID },
{ 0 },
};