Displaying 20 results from an estimated 149 matches for "vhost_set_featur".
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vhost_set_features
2019 Sep 03
2
[RFC v3] vhost: introduce mdev based hardware vhost backend
...case VFIO_DEVICE_SET_IRQS:
> + case VFIO_DEVICE_RESET:
> + ret = -EINVAL;
> + break;
> +
> + case VHOST_MDEV_SET_STATE:
> + ret = vhost_set_state(vdpa, argp);
> + break;
> + case VHOST_GET_FEATURES:
> + ret = vhost_get_features(vdpa, argp);
> + break;
> + case VHOST_SET_FEATURES:
> + ret = vhost_set_features(vdpa, argp);
> + break;
> + case VHOST_GET_VRING_BASE:
> + ret = vhost_get_vring_base(vdpa, argp);
> + break;
> + default:
> + ret = vhost_dev_ioctl(&vdpa->dev, cmd, argp);
> + if (ret == -ENOIOCTLCMD)
> + ret = vhost_vring_i...
2019 Sep 03
2
[RFC v3] vhost: introduce mdev based hardware vhost backend
...case VFIO_DEVICE_SET_IRQS:
> + case VFIO_DEVICE_RESET:
> + ret = -EINVAL;
> + break;
> +
> + case VHOST_MDEV_SET_STATE:
> + ret = vhost_set_state(vdpa, argp);
> + break;
> + case VHOST_GET_FEATURES:
> + ret = vhost_get_features(vdpa, argp);
> + break;
> + case VHOST_SET_FEATURES:
> + ret = vhost_set_features(vdpa, argp);
> + break;
> + case VHOST_GET_VRING_BASE:
> + ret = vhost_get_vring_base(vdpa, argp);
> + break;
> + default:
> + ret = vhost_dev_ioctl(&vdpa->dev, cmd, argp);
> + if (ret == -ENOIOCTLCMD)
> + ret = vhost_vring_i...
2019 Sep 27
5
[PATCH] vhost: introduce mdev based hardware backend
...e as well. Thanks for
spotting this.
> > +
> > + switch (cmd) {
> > + case VHOST_MDEV_SET_STATE:
> > + r = vhost_set_state(m, argp);
> > + break;
> > + case VHOST_GET_FEATURES:
> > + r = vhost_get_features(m, argp);
> > + break;
> > + case VHOST_SET_FEATURES:
> > + r = vhost_set_features(m, argp);
> > + break;
> > + case VHOST_GET_VRING_BASE:
> > + r = vhost_get_vring_base(m, argp);
> > + break;
>
>
> Does it mean the SET_VRING_BASE may only take affect after
> VHOST_MEV_SET_STATE?
Yeah, in this versio...
2019 Sep 27
5
[PATCH] vhost: introduce mdev based hardware backend
...e as well. Thanks for
spotting this.
> > +
> > + switch (cmd) {
> > + case VHOST_MDEV_SET_STATE:
> > + r = vhost_set_state(m, argp);
> > + break;
> > + case VHOST_GET_FEATURES:
> > + r = vhost_get_features(m, argp);
> > + break;
> > + case VHOST_SET_FEATURES:
> > + r = vhost_set_features(m, argp);
> > + break;
> > + case VHOST_GET_VRING_BASE:
> > + r = vhost_get_vring_base(m, argp);
> > + break;
>
>
> Does it mean the SET_VRING_BASE may only take affect after
> VHOST_MEV_SET_STATE?
Yeah, in this versio...
2019 Sep 27
1
[PATCH] vhost: introduce mdev based hardware backend
...(cmd) {
> > > > + case VHOST_MDEV_SET_STATE:
> > > > + r = vhost_set_state(m, argp);
> > > > + break;
> > > > + case VHOST_GET_FEATURES:
> > > > + r = vhost_get_features(m, argp);
> > > > + break;
> > > > + case VHOST_SET_FEATURES:
> > > > + r = vhost_set_features(m, argp);
> > > > + break;
> > > > + case VHOST_GET_VRING_BASE:
> > > > + r = vhost_get_vring_base(m, argp);
> > > > + break;
> > > Does it mean the SET_VRING_BASE may only take affect after...
2015 Oct 30
5
[PATCH] vhost: move is_le setup to the backend
...fix endianness when accessing the vring via
the cpu_to_vhost16() and vhost16_to_cpu() helpers in the following cases:
1) host is big endian and device is modern virtio
2) host has cross-endian support and device is legacy virtio with a different
endianness than the host
Both cases rely on the VHOST_SET_FEATURES ioctl, but 2) also needs the
VHOST_SET_VRING_ENDIAN ioctl to be called by userspace. Since vq->is_le
is only needed when the backend is active, it was decided to set it at
backend start.
This is currently done in vhost_init_used()->vhost_init_is_le() but it
obfuscates the core vhost code....
2015 Oct 30
5
[PATCH] vhost: move is_le setup to the backend
...fix endianness when accessing the vring via
the cpu_to_vhost16() and vhost16_to_cpu() helpers in the following cases:
1) host is big endian and device is modern virtio
2) host has cross-endian support and device is legacy virtio with a different
endianness than the host
Both cases rely on the VHOST_SET_FEATURES ioctl, but 2) also needs the
VHOST_SET_VRING_ENDIAN ioctl to be called by userspace. Since vq->is_le
is only needed when the backend is active, it was decided to set it at
backend start.
This is currently done in vhost_init_used()->vhost_init_is_le() but it
obfuscates the core vhost code....
2019 Sep 26
6
[PATCH] vhost: introduce mdev based hardware backend
...r = vhost_mdev_reset(m);
+ break;
+ default:
+ r = -EINVAL;
+ break;
+ }
+
+ return r;
+}
+
+static long vhost_get_features(struct vhost_mdev *m, u64 __user *featurep)
+{
+ if (copy_to_user(featurep, &m->features, sizeof(m->features)))
+ return -EFAULT;
+ return 0;
+}
+
+static long vhost_set_features(struct vhost_mdev *m, u64 __user *featurep)
+{
+ u64 features;
+
+ if (copy_from_user(&features, featurep, sizeof(features)))
+ return -EFAULT;
+
+ if (features & ~m->features)
+ return -EINVAL;
+
+ m->acked_features = features;
+
+ return 0;
+}
+
+static long vhost_get_vring_base...
2019 Sep 26
6
[PATCH] vhost: introduce mdev based hardware backend
...r = vhost_mdev_reset(m);
+ break;
+ default:
+ r = -EINVAL;
+ break;
+ }
+
+ return r;
+}
+
+static long vhost_get_features(struct vhost_mdev *m, u64 __user *featurep)
+{
+ if (copy_to_user(featurep, &m->features, sizeof(m->features)))
+ return -EFAULT;
+ return 0;
+}
+
+static long vhost_set_features(struct vhost_mdev *m, u64 __user *featurep)
+{
+ u64 features;
+
+ if (copy_from_user(&features, featurep, sizeof(features)))
+ return -EFAULT;
+
+ if (features & ~m->features)
+ return -EINVAL;
+
+ m->acked_features = features;
+
+ return 0;
+}
+
+static long vhost_get_vring_base...
2019 Sep 27
0
[PATCH] vhost: introduce mdev based hardware backend
....
>
>
>>> +
>>> + switch (cmd) {
>>> + case VHOST_MDEV_SET_STATE:
>>> + r = vhost_set_state(m, argp);
>>> + break;
>>> + case VHOST_GET_FEATURES:
>>> + r = vhost_get_features(m, argp);
>>> + break;
>>> + case VHOST_SET_FEATURES:
>>> + r = vhost_set_features(m, argp);
>>> + break;
>>> + case VHOST_GET_VRING_BASE:
>>> + r = vhost_get_vring_base(m, argp);
>>> + break;
>> Does it mean the SET_VRING_BASE may only take affect after
>> VHOST_MEV_SET_STATE?
> Yeah,...
2019 Sep 04
0
[RFC v3] vhost: introduce mdev based hardware vhost backend
..._RESET:
> > + ret = -EINVAL;
> > + break;
> > +
> > + case VHOST_MDEV_SET_STATE:
> > + ret = vhost_set_state(vdpa, argp);
> > + break;
> > + case VHOST_GET_FEATURES:
> > + ret = vhost_get_features(vdpa, argp);
> > + break;
> > + case VHOST_SET_FEATURES:
> > + ret = vhost_set_features(vdpa, argp);
> > + break;
> > + case VHOST_GET_VRING_BASE:
> > + ret = vhost_get_vring_base(vdpa, argp);
> > + break;
> > + default:
> > + ret = vhost_dev_ioctl(&vdpa->dev, cmd, argp);
> > + if (ret == -E...
2019 Sep 26
0
[PATCH] vhost: introduce mdev based hardware backend
...break;
> + }
> +
> + return r;
> +}
> +
> +static long vhost_get_features(struct vhost_mdev *m, u64 __user *featurep)
> +{
> + if (copy_to_user(featurep, &m->features, sizeof(m->features)))
> + return -EFAULT;
> + return 0;
> +}
> +
> +static long vhost_set_features(struct vhost_mdev *m, u64 __user *featurep)
> +{
> + u64 features;
> +
> + if (copy_from_user(&features, featurep, sizeof(features)))
> + return -EFAULT;
> +
> + if (features & ~m->features)
> + return -EINVAL;
> +
> + m->acked_features = features;
&g...
2019 Sep 27
0
[PATCH] vhost: introduce mdev based hardware backend
...break;
> + }
> +
> + return r;
> +}
> +
> +static long vhost_get_features(struct vhost_mdev *m, u64 __user *featurep)
> +{
> + if (copy_to_user(featurep, &m->features, sizeof(m->features)))
> + return -EFAULT;
> + return 0;
> +}
> +
> +static long vhost_set_features(struct vhost_mdev *m, u64 __user *featurep)
> +{
> + u64 features;
> +
> + if (copy_from_user(&features, featurep, sizeof(features)))
> + return -EFAULT;
> +
> + if (features & ~m->features)
> + return -EINVAL;
> +
> + m->acked_features = features;
&g...
2019 Sep 02
2
[RFC v3] vhost: introduce mdev based hardware vhost backend
...state) {
> + case VHOST_MDEV_S_RUNNING:
> + vdpa->ops->start(vdpa);
> + break;
> + case VHOST_MDEV_S_STOPPED:
> + vdpa->ops->stop(vdpa);
> + break;
> + }
> +
> + mutex_unlock(&vdpa->dev.mutex);
> +
> + return 0;
> +}
> +
> +static int vhost_set_features(struct vhost_mdev *vdpa, u64 __user *featurep)
> +{
> + u64 features;
> +
> + if (copy_from_user(&features, featurep, sizeof(features)))
> + return -EFAULT;
> +
> + if (features & ~vdpa->features)
> + return -EINVAL;
> +
> + vdpa->acked_features = fea...
2019 Sep 02
2
[RFC v3] vhost: introduce mdev based hardware vhost backend
...state) {
> + case VHOST_MDEV_S_RUNNING:
> + vdpa->ops->start(vdpa);
> + break;
> + case VHOST_MDEV_S_STOPPED:
> + vdpa->ops->stop(vdpa);
> + break;
> + }
> +
> + mutex_unlock(&vdpa->dev.mutex);
> +
> + return 0;
> +}
> +
> +static int vhost_set_features(struct vhost_mdev *vdpa, u64 __user *featurep)
> +{
> + u64 features;
> +
> + if (copy_from_user(&features, featurep, sizeof(features)))
> + return -EFAULT;
> +
> + if (features & ~vdpa->features)
> + return -EINVAL;
> +
> + vdpa->acked_features = fea...
2016 Jan 11
2
[PATCH] vhost: move is_le setup to the backend
...fix endianness when accessing the vring via
the cpu_to_vhost16() and vhost16_to_cpu() helpers in the following cases:
1) host is big endian and device is modern virtio
2) host has cross-endian support and device is legacy virtio with a different
endianness than the host
Both cases rely on the VHOST_SET_FEATURES ioctl, but 2) also needs the
VHOST_SET_VRING_ENDIAN ioctl to be called by userspace. Since vq->is_le
is only needed when the backend is active, it was decided to set it at
backend start.
This is currently done in vhost_init_used()->vhost_init_is_le() but it
obfuscates the core vhost code....
2016 Jan 11
2
[PATCH] vhost: move is_le setup to the backend
...fix endianness when accessing the vring via
the cpu_to_vhost16() and vhost16_to_cpu() helpers in the following cases:
1) host is big endian and device is modern virtio
2) host has cross-endian support and device is legacy virtio with a different
endianness than the host
Both cases rely on the VHOST_SET_FEATURES ioctl, but 2) also needs the
VHOST_SET_VRING_ENDIAN ioctl to be called by userspace. Since vq->is_le
is only needed when the backend is active, it was decided to set it at
backend start.
This is currently done in vhost_init_used()->vhost_init_is_le() but it
obfuscates the core vhost code....
2013 May 08
1
[PATCH v2] vhost-test: Make vhost/test.c work
...ost_test_ioctl(struct file *f, unsigned int ioctl,
return -EFAULT;
return vhost_test_run(n, test);
case VHOST_GET_FEATURES:
- features = VHOST_NET_FEATURES;
+ features = VHOST_FEATURES;
if (copy_to_user(featurep, &features, sizeof features))
return -EFAULT;
return 0;
case VHOST_SET_FEATURES:
if (copy_from_user(&features, featurep, sizeof features))
return -EFAULT;
- if (features & ~VHOST_NET_FEATURES)
+ if (features & ~VHOST_FEATURES)
return -EOPNOTSUPP;
return vhost_test_set_features(n, features);
case VHOST_RESET_OWNER:
--
1.8.1.4
2013 May 08
1
[PATCH v2] vhost-test: Make vhost/test.c work
...ost_test_ioctl(struct file *f, unsigned int ioctl,
return -EFAULT;
return vhost_test_run(n, test);
case VHOST_GET_FEATURES:
- features = VHOST_NET_FEATURES;
+ features = VHOST_FEATURES;
if (copy_to_user(featurep, &features, sizeof features))
return -EFAULT;
return 0;
case VHOST_SET_FEATURES:
if (copy_from_user(&features, featurep, sizeof features))
return -EFAULT;
- if (features & ~VHOST_NET_FEATURES)
+ if (features & ~VHOST_FEATURES)
return -EOPNOTSUPP;
return vhost_test_set_features(n, features);
case VHOST_RESET_OWNER:
--
1.8.1.4
2019 Sep 17
0
[RFC v4 3/3] vhost: introduce mdev based hardware backend
...host_mdev_stop_backend(m);
+ break;
+ default:
+ r = -EINVAL;
+ break;
+ }
+
+ return r;
+}
+
+static long vhost_get_features(struct vhost_mdev *m, u64 __user *featurep)
+{
+ if (copy_to_user(featurep, &m->features, sizeof(m->features)))
+ return -EFAULT;
+ return 0;
+}
+
+static long vhost_set_features(struct vhost_mdev *m, u64 __user *featurep)
+{
+ u64 features;
+
+ if (copy_from_user(&features, featurep, sizeof(features)))
+ return -EFAULT;
+
+ if (features & ~m->features)
+ return -EINVAL;
+
+ m->acked_features = features;
+
+ return 0;
+}
+
+static long vhost_get_vring_base...