search for: vfio_vhost_mdev_mmap

...rn 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, struct vm_area_struct *vma) { /* ... */ return 0; } static const struct vfio_device_ops vfio_vhost_mdev_dev_ops = { .name = "vfio-vhost-mdev", .open = vfio_vhost_mdev_open, .release = vfio_vhost_mdev_release, .ioctl = vfio_vhost_mdev_unlocked_ioctl, .read =...

...rn 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, struct vm_area_struct *vma) { /* ... */ return 0; } static const struct vfio_device_ops vfio_vhost_mdev_dev_ops = { .name = "vfio-vhost-mdev", .open = vfio_vhost_mdev_open, .release = vfio_vhost_mdev_release, .ioctl = vfio_vhost_mdev_unlocked_ioctl, .read =...

...__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, struct vm_area_struct *vma) > { > /* ... */ > return 0; > } > > static const struct vfio_device_ops vfio_vhost_mdev_dev_ops = { > .name = "vfio-vhost-mdev", > .open = vfio_vhost_mdev_open, > .release = vfio_vhost_mdev_release, > .io...

...> > /* ... */ > > 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, struct vm_area_struct *vma) > > { > > /* ... */ > > return 0; > > } > > > > static const struct vfio_device_ops vfio_vhost_mdev_dev_ops = { > > .name = "vfio-vhost-mdev", > > .open = vfio_vhost_mdev_open, > >...

...> > /* ... */ > > 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, struct vm_area_struct *vma) > > { > > /* ... */ > > return 0; > > } > > > > static const struct vfio_device_ops vfio_vhost_mdev_dev_ops = { > > .name = "vfio-vhost-mdev", > > .open = vfio_vhost_mdev_open, > >...

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