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authorIngo Molnar <mingo@kernel.org>2018-10-04 08:23:03 +0200
committerIngo Molnar <mingo@kernel.org>2018-10-04 08:23:03 +0200
commitc0554d2d3db438623b4f2f9abc3d766b2b15d2fb (patch)
treed00dc324772b95373f4bdc566b3437e5bf637157 /tools/include/uapi/linux/vhost.h
parentbef459026b161fbc39d20dcba698ed0cfffbac38 (diff)
parent1d2ba7fee28b3a47cca8e8f4f94a22d30b2b3a6f (diff)
Merge branch 'linus' into x86/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/include/uapi/linux/vhost.h')
-rw-r--r--tools/include/uapi/linux/vhost.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/vhost.h b/tools/include/uapi/linux/vhost.h
index c51f8e5cc608..84c3de89696a 100644
--- a/tools/include/uapi/linux/vhost.h
+++ b/tools/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.