Re: [PATCH 01/40] linux-headers: add vhost_types.h and vhost.h

[Jason Wang <jasowang@redhat.com>]

On Fri, Dec 8, 2023 at 2:50 AM Si-Wei Liu <si-wei.liu@oracle.com> wrote:
>
> Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>

It's better to document which version did this commit sync to.

Thanks

> ---
>  include/standard-headers/linux/vhost_types.h | 13 +++++++++++++
>  linux-headers/linux/vhost.h                  |  9 +++++++++
>  2 files changed, 22 insertions(+)
>
> diff --git a/include/standard-headers/linux/vhost_types.h b/include/standard-headers/linux/vhost_types.h
> index 5ad07e1..c39199b 100644
> --- a/include/standard-headers/linux/vhost_types.h
> +++ b/include/standard-headers/linux/vhost_types.h
> @@ -185,5 +185,18 @@ struct vhost_vdpa_iova_range {
>   * DRIVER_OK
>   */
>  #define VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK  0x6
> +/* Device can be resumed */
> +#define VHOST_BACKEND_F_RESUME  0x5
> +/* Device supports the driver enabling virtqueues both before and after
> + * DRIVER_OK
> + */
> +#define VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK  0x6
> +/* Device may expose the virtqueue's descriptor area, driver area and
> + * device area to a different group for ASID binding than where its
> + * buffers may reside. Requires VHOST_BACKEND_F_IOTLB_ASID.
> + */
> +#define VHOST_BACKEND_F_DESC_ASID    0x7
> +/* IOTLB don't flush memory mapping across device reset */
> +#define VHOST_BACKEND_F_IOTLB_PERSIST  0x8
>
>  #endif
> diff --git a/linux-headers/linux/vhost.h b/linux-headers/linux/vhost.h
> index f5c48b6..c61c687 100644
> --- a/linux-headers/linux/vhost.h
> +++ b/linux-headers/linux/vhost.h
> @@ -219,4 +219,13 @@
>   */
>  #define VHOST_VDPA_RESUME              _IO(VHOST_VIRTIO, 0x7E)
>
> +/* Get the dedicated group for the descriptor table of a virtqueue:
> + * read index, write group in num.
> + * The virtqueue index is stored in the index field of vhost_vring_state.
> + * The group id for the descriptor table of this specific virtqueue
> + * is returned via num field of vhost_vring_state.
> + */
> +#define VHOST_VDPA_GET_VRING_DESC_GROUP        _IOWR(VHOST_VIRTIO, 0x7F,       \
> +                                             struct vhost_vring_state)
> +
>  #endif
> --
> 1.8.3.1
>