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