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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-01-14 15:33:23 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-01-14 15:33:23 -0800 |
| commit | 3eb66e91a25497065c5322b1268cbc3953642227 (patch) | |
| tree | 69f8e1312323ceeafc1a0fdc24d168e1617ffed4 /include/uapi/linux/vhost.h | |
| parent | 4add635b4e00dd7d6aad83a937afdf1957196da6 (diff) | |
| parent | 8fe28cb58bcb235034b64cbbb7550a8a43fd88be (diff) | |
Merge tag 'v4.20' into for-linus
Sync with mainline to get linux/overflow.h among other things.
Diffstat (limited to 'include/uapi/linux/vhost.h')
| -rw-r--r-- | include/uapi/linux/vhost.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index c51f8e5cc608..84c3de89696a 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -65,6 +65,7 @@ struct vhost_iotlb_msg { }; #define VHOST_IOTLB_MSG 0x1 +#define VHOST_IOTLB_MSG_V2 0x2 struct vhost_msg { int type; @@ -74,6 +75,15 @@ struct vhost_msg { }; }; +struct vhost_msg_v2 { + __u32 type; + __u32 reserved; + union { + struct vhost_iotlb_msg iotlb; + __u8 padding[64]; + }; +}; + struct vhost_memory_region { __u64 guest_phys_addr; __u64 memory_size; /* bytes */ @@ -160,6 +170,14 @@ struct vhost_memory { #define VHOST_GET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x24, \ struct vhost_vring_state) +/* Set or get vhost backend capability */ + +/* Use message type V2 */ +#define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 + +#define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) + /* VHOST_NET specific defines */ /* Attach virtio net ring to a raw socket, or tap device. |