Displaying 1 result from an estimated 1 matches for "vhost_vdpa_set_backend_features".
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vhost_vdpa_get_backend_features
2020 Sep 09
0
[PATCH] vhost: new vhost_vdpa SET/GET_BACKEND_FEATURES handlers
...+static long vhost_vdpa_get_backend_features(void __user *argp)
> +{
> + u64 features = VHOST_VDPA_BACKEND_FEATURES;
> + u64 __user *featurep = argp;
> + long r;
> +
> + r = copy_to_user(featurep, &features, sizeof(features));
> +
> + return r;
> +}
> +static long vhost_vdpa_set_backend_features(struct vhost_vdpa *v, void
> __user *argp)
> +{
> + u64 __user *featurep = argp;
> + u64 features;
> +
> + if (copy_from_user(&features, featurep, sizeof(features)))
> + return -EFAULT;
> +
> + if (features & ~VHOST_VDPA_BACKEND_FEATURES)
> + return -EOPNOTSU...