search for: vfio_vhost_mdev_read

.../* * Use vhost ioctls. * * We will have a different parent_ops design. * And potentially, we can share the same parent_ops * with virtio_mdev. */ switch (cmd) { case VHOST_GET_FEATURES: parent->ops->get_features(mdev, ...); break; /* ... */ } return 0; } static ssize_t vfio_vhost_mdev_read(void *device_data, char __user *buf, size_t count, loff_t *ppos) { /* ... */ return 0; } static ssize_t vfio_vhost_mdev_write(void *device_data, const char __user *buf, size_t count, loff_t *ppos) { /* ... */ return 0; } static int vfio_vhost_mdev_mmap(void *device_data, stru...

.../* * Use vhost ioctls. * * We will have a different parent_ops design. * And potentially, we can share the same parent_ops * with virtio_mdev. */ switch (cmd) { case VHOST_GET_FEATURES: parent->ops->get_features(mdev, ...); break; /* ... */ } return 0; } static ssize_t vfio_vhost_mdev_read(void *device_data, char __user *buf, size_t count, loff_t *ppos) { /* ... */ return 0; } static ssize_t vfio_vhost_mdev_write(void *device_data, const char __user *buf, size_t count, loff_t *ppos) { /* ... */ return 0; } static int vfio_vhost_mdev_mmap(void *device_data, stru...

...s design. > * And potentially, we can share the same parent_ops > * with virtio_mdev. > */ > switch (cmd) { > case VHOST_GET_FEATURES: > parent->ops->get_features(mdev, ...); > break; > /* ... */ > } > > return 0; > } > > static ssize_t vfio_vhost_mdev_read(void *device_data, char __user *buf, > size_t count, loff_t *ppos) > { > /* ... */ > return 0; > } > > static ssize_t vfio_vhost_mdev_write(void *device_data, const char __user *buf, > size_t count, loff_t *ppos) > { > /* ... */ > return 0; >...

...s > > * with virtio_mdev. > > */ > > switch (cmd) { > > case VHOST_GET_FEATURES: > > parent->ops->get_features(mdev, ...); > > break; > > /* ... */ > > } > > > > return 0; > > } > > > > static ssize_t vfio_vhost_mdev_read(void *device_data, char __user *buf, > > size_t count, loff_t *ppos) > > { > > /* ... */ > > return 0; > > } > > > > static ssize_t vfio_vhost_mdev_write(void *device_data, const char __user *buf, > > size_t count, loff_t *ppos) &g...

...s > > * with virtio_mdev. > > */ > > switch (cmd) { > > case VHOST_GET_FEATURES: > > parent->ops->get_features(mdev, ...); > > break; > > /* ... */ > > } > > > > return 0; > > } > > > > static ssize_t vfio_vhost_mdev_read(void *device_data, char __user *buf, > > size_t count, loff_t *ppos) > > { > > /* ... */ > > return 0; > > } > > > > static ssize_t vfio_vhost_mdev_write(void *device_data, const char __user *buf, > > size_t count, loff_t *ppos) &g...

This RFC is to demonstrate below ideas, a) Build vhost-mdev on top of the same abstraction defined in the virtio-mdev series [1]; b) Introduce /dev/vhost-mdev to do vhost ioctls and support setting mdev device as backend; Now the userspace API looks like this: - Userspace generates a compatible mdev device; - Userspace opens this mdev device with VFIO API (including doing IOMMU

This RFC is to demonstrate below ideas, a) Build vhost-mdev on top of the same abstraction defined in the virtio-mdev series [1]; b) Introduce /dev/vhost-mdev to do vhost ioctls and support setting mdev device as backend; Now the userspace API looks like this: - Userspace generates a compatible mdev device; - Userspace opens this mdev device with VFIO API (including doing IOMMU