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-rw-r--r--drivers/hv/hyperv_vmbus.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 2f30456d90a5..138d6634c79d 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -755,4 +755,13 @@ static inline void hv_poll_channel(struct vmbus_channel *channel,
cb(channel);
}
+enum hvutil_device_state {
+ HVUTIL_DEVICE_INIT = 0, /* driver is loaded, waiting for userspace */
+ HVUTIL_READY, /* userspace is registered */
+ HVUTIL_HOSTMSG_RECEIVED, /* message from the host was received */
+ HVUTIL_USERSPACE_REQ, /* request to userspace was sent */
+ HVUTIL_USERSPACE_RECV, /* reply from userspace was received */
+ HVUTIL_DEVICE_DYING, /* driver unload is in progress */
+};
+
#endif /* _HYPERV_VMBUS_H */