What:		/sys/bus/vmbus/devices/vmbus_*/id
Date:		Jul 2009
KernelVersion:	2.6.31
Contact:	K. Y. Srinivasan <kys@microsoft.com>
Description:	The VMBus child_relid of the device's primary channel
Users:		tools/hv/lsvmbus

What:		/sys/bus/vmbus/devices/vmbus_*/class_id
Date:		Jul 2009
KernelVersion:	2.6.31
Contact:	K. Y. Srinivasan <kys@microsoft.com>
Description:	The VMBus interface type GUID of the device
Users:		tools/hv/lsvmbus

What:		/sys/bus/vmbus/devices/vmbus_*/device_id
Date:		Jul 2009
KernelVersion:	2.6.31
Contact:	K. Y. Srinivasan <kys@microsoft.com>
Description:	The VMBus interface instance GUID of the device
Users:		tools/hv/lsvmbus

What:		/sys/bus/vmbus/devices/vmbus_*/channel_vp_mapping
Date:		Jul 2015
KernelVersion:	4.2.0
Contact:	K. Y. Srinivasan <kys@microsoft.com>
Description:	The mapping of which primary/sub channels are bound to which
		Virtual Processors.
		Format: <channel's child_relid:the bound cpu's number>
Users:		tools/hv/lsvmbus

What:		/sys/bus/vmbus/devices/vmbus_*/device
Date:		Dec. 2015
KernelVersion:	4.5
Contact:	K. Y. Srinivasan <kys@microsoft.com>
Description:	The 16 bit device ID of the device
Users:		tools/hv/lsvmbus and user level RDMA libraries

What:		/sys/bus/vmbus/devices/vmbus_*/vendor
Date:		Dec. 2015
KernelVersion:	4.5
Contact:	K. Y. Srinivasan <kys@microsoft.com>
Description:	The 16 bit vendor ID of the device
Users:		tools/hv/lsvmbus and user level RDMA libraries

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Directory for per-channel information
		NN is the VMBUS relid associtated with the channel.

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/cpu
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	VCPU (sub)channel is affinitized to
Users:		tools/hv/lsvmbus and other debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/cpu
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	VCPU (sub)channel is affinitized to
Users:		tools/hv/lsvmbus and other debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/in_mask
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Host to guest channel interrupt mask
Users:		Debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/latency
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Channel signaling latency
Users:		Debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/out_mask
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Guest to host channel interrupt mask
Users:		Debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/pending
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Channel interrupt pending state
Users:		Debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/read_avail
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Bytes available to read
Users:		Debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/write_avail
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Bytes available to write
Users:		Debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/events
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Number of times we have signaled the host
Users:		Debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/interrupts
Date:		September. 2017
KernelVersion:	4.14
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Number of times we have taken an interrupt (incoming)
Users:		Debugging tools

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/subchannel_id
Date:		January. 2018
KernelVersion:	4.16
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Subchannel ID associated with VMBUS channel
Users:		Debugging tools and userspace drivers

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/monitor_id
Date:		January. 2018
KernelVersion:	4.16
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Monitor bit associated with channel
Users:		Debugging tools and userspace drivers

What:		/sys/bus/vmbus/devices/vmbus_*/channels/NN/ring
Date:		January. 2018
KernelVersion:	4.16
Contact:	Stephen Hemminger <sthemmin@microsoft.com>
Description:	Binary file created by uio_hv_generic for ring buffer
Users:		Userspace drivers