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vhost: Add worker backend callouts

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This adds the vhost backend callouts for the worker ioctls added in the
6.4 linux kernel commit:

c1ecd8e95007 ("vhost: allow userspace to create workers")

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

Message-Id: <20231204231618.21962-2-michael.christie@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Mike Christie 2023-12-04 17:16:17 -06:00 • committed by Michael S. Tsirkin
parent c40db4ba60
commit 9aad781959
2 changed files with 42 additions and 0 deletions
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28
hw/virtio/vhost-backend.c
View file

@ -158,6 +158,30 @@ static int vhost_kernel_set_vring_busyloop_timeout(struct vhost_dev *dev,
return vhost_kernel_call(dev, VHOST_SET_VRING_BUSYLOOP_TIMEOUT, s);
}
static int vhost_kernel_new_worker(struct vhost_dev *dev,
struct vhost_worker_state *worker)
{
return vhost_kernel_call(dev, VHOST_NEW_WORKER, worker);
}
static int vhost_kernel_free_worker(struct vhost_dev *dev,
struct vhost_worker_state *worker)
{
return vhost_kernel_call(dev, VHOST_FREE_WORKER, worker);
}
static int vhost_kernel_attach_vring_worker(struct vhost_dev *dev,
struct vhost_vring_worker *worker)
{
return vhost_kernel_call(dev, VHOST_ATTACH_VRING_WORKER, worker);
}
static int vhost_kernel_get_vring_worker(struct vhost_dev *dev,
struct vhost_vring_worker *worker)
{
return vhost_kernel_call(dev, VHOST_GET_VRING_WORKER, worker);
}
static int vhost_kernel_set_features(struct vhost_dev *dev,
uint64_t features)
{
@ -313,6 +337,10 @@ const VhostOps kernel_ops = {
.vhost_set_vring_err = vhost_kernel_set_vring_err,
.vhost_set_vring_busyloop_timeout =
vhost_kernel_set_vring_busyloop_timeout,
.vhost_get_vring_worker = vhost_kernel_get_vring_worker,
.vhost_attach_vring_worker = vhost_kernel_attach_vring_worker,
.vhost_new_worker = vhost_kernel_new_worker,
.vhost_free_worker = vhost_kernel_free_worker,
.vhost_set_features = vhost_kernel_set_features,
.vhost_get_features = vhost_kernel_get_features,
.vhost_set_backend_cap = vhost_kernel_set_backend_cap,