diff options
Diffstat (limited to 'include/uapi')
-rw-r--r-- | include/uapi/linux/vhost.h | 8 | ||||
-rw-r--r-- | include/uapi/linux/vhost_types.h | 7 | ||||
-rw-r--r-- | include/uapi/linux/virtio_config.h | 5 |
3 files changed, 20 insertions, 0 deletions
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index f5c48b61ab62..649560c685f1 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -219,4 +219,12 @@ */ #define VHOST_VDPA_RESUME _IO(VHOST_VIRTIO, 0x7E) +/* Get the group for the descriptor table including driver & device areas + * 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 of the descriptor table for 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 diff --git a/include/uapi/linux/vhost_types.h b/include/uapi/linux/vhost_types.h index 2d827d22cd99..d7656908f730 100644 --- a/include/uapi/linux/vhost_types.h +++ b/include/uapi/linux/vhost_types.h @@ -185,5 +185,12 @@ struct vhost_vdpa_iova_range { * 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/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h index 2c712c654165..8881aea60f6f 100644 --- a/include/uapi/linux/virtio_config.h +++ b/include/uapi/linux/virtio_config.h @@ -105,6 +105,11 @@ */ #define VIRTIO_F_NOTIFICATION_DATA 38 +/* This feature indicates that the driver uses the data provided by the device + * as a virtqueue identifier in available buffer notifications. + */ +#define VIRTIO_F_NOTIF_CONFIG_DATA 39 + /* * This feature indicates that the driver can reset a queue individually. */ |