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What: /sys/bus/vmbus/devices/<UUID>/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/<UUID>/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/<UUID>/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/<UUID>/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/<UUID>/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/<UUID>/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/<UUID>/numa_node
Date: Jul 2018
KernelVersion: 4.19
Contact: Stephen Hemminger <sthemmin@microsoft.com>
Description: This NUMA node to which the VMBUS device is
attached, or -1 if the node is unknown.
What: /sys/bus/vmbus/devices/<UUID>/channels/<N>
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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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/<UUID>/channels/<N>/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
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