1What: /sys/bus/vmbus/devices/<UUID>/id 2Date: Jul 2009 3KernelVersion: 2.6.31 4Contact: K. Y. Srinivasan <kys@microsoft.com> 5Description: The VMBus child_relid of the device's primary channel 6Users: tools/hv/lsvmbus 7 8What: /sys/bus/vmbus/devices/<UUID>/class_id 9Date: Jul 2009 10KernelVersion: 2.6.31 11Contact: K. Y. Srinivasan <kys@microsoft.com> 12Description: The VMBus interface type GUID of the device 13Users: tools/hv/lsvmbus 14 15What: /sys/bus/vmbus/devices/<UUID>/device_id 16Date: Jul 2009 17KernelVersion: 2.6.31 18Contact: K. Y. Srinivasan <kys@microsoft.com> 19Description: The VMBus interface instance GUID of the device 20Users: tools/hv/lsvmbus 21 22What: /sys/bus/vmbus/devices/<UUID>/channel_vp_mapping 23Date: Jul 2015 24KernelVersion: 4.2.0 25Contact: K. Y. Srinivasan <kys@microsoft.com> 26Description: The mapping of which primary/sub channels are bound to which 27 Virtual Processors. 28 Format: <channel's child_relid:the bound cpu's number> 29Users: tools/hv/lsvmbus 30 31What: /sys/bus/vmbus/devices/<UUID>/device 32Date: Dec. 2015 33KernelVersion: 4.5 34Contact: K. Y. Srinivasan <kys@microsoft.com> 35Description: The 16 bit device ID of the device 36Users: tools/hv/lsvmbus and user level RDMA libraries 37 38What: /sys/bus/vmbus/devices/<UUID>/vendor 39Date: Dec. 2015 40KernelVersion: 4.5 41Contact: K. Y. Srinivasan <kys@microsoft.com> 42Description: The 16 bit vendor ID of the device 43Users: tools/hv/lsvmbus and user level RDMA libraries 44 45What: /sys/bus/vmbus/devices/<UUID>/numa_node 46Date: Jul 2018 47KernelVersion: 4.19 48Contact: Stephen Hemminger <sthemmin@microsoft.com> 49Description: This NUMA node to which the VMBUS device is 50 attached, or -1 if the node is unknown. 51 52What: /sys/bus/vmbus/devices/<UUID>/channels/<N> 53Date: September. 2017 54KernelVersion: 4.14 55Contact: Stephen Hemminger <sthemmin@microsoft.com> 56Description: Directory for per-channel information 57 NN is the VMBUS relid associtated with the channel. 58 59What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu 60Date: September. 2017 61KernelVersion: 4.14 62Contact: Stephen Hemminger <sthemmin@microsoft.com> 63Description: VCPU (sub)channel is affinitized to 64Users: tools/hv/lsvmbus and other debugging tools 65 66What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu 67Date: September. 2017 68KernelVersion: 4.14 69Contact: Stephen Hemminger <sthemmin@microsoft.com> 70Description: VCPU (sub)channel is affinitized to 71Users: tools/hv/lsvmbus and other debugging tools 72 73What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/in_mask 74Date: September. 2017 75KernelVersion: 4.14 76Contact: Stephen Hemminger <sthemmin@microsoft.com> 77Description: Host to guest channel interrupt mask 78Users: Debugging tools 79 80What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/latency 81Date: September. 2017 82KernelVersion: 4.14 83Contact: Stephen Hemminger <sthemmin@microsoft.com> 84Description: Channel signaling latency 85Users: Debugging tools 86 87What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_mask 88Date: September. 2017 89KernelVersion: 4.14 90Contact: Stephen Hemminger <sthemmin@microsoft.com> 91Description: Guest to host channel interrupt mask 92Users: Debugging tools 93 94What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/pending 95Date: September. 2017 96KernelVersion: 4.14 97Contact: Stephen Hemminger <sthemmin@microsoft.com> 98Description: Channel interrupt pending state 99Users: Debugging tools 100 101What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/read_avail 102Date: September. 2017 103KernelVersion: 4.14 104Contact: Stephen Hemminger <sthemmin@microsoft.com> 105Description: Bytes available to read 106Users: Debugging tools 107 108What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/write_avail 109Date: September. 2017 110KernelVersion: 4.14 111Contact: Stephen Hemminger <sthemmin@microsoft.com> 112Description: Bytes available to write 113Users: Debugging tools 114 115What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/events 116Date: September. 2017 117KernelVersion: 4.14 118Contact: Stephen Hemminger <sthemmin@microsoft.com> 119Description: Number of times we have signaled the host 120Users: Debugging tools 121 122What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/interrupts 123Date: September. 2017 124KernelVersion: 4.14 125Contact: Stephen Hemminger <sthemmin@microsoft.com> 126Description: Number of times we have taken an interrupt (incoming) 127Users: Debugging tools 128 129What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/subchannel_id 130Date: January. 2018 131KernelVersion: 4.16 132Contact: Stephen Hemminger <sthemmin@microsoft.com> 133Description: Subchannel ID associated with VMBUS channel 134Users: Debugging tools and userspace drivers 135 136What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/monitor_id 137Date: January. 2018 138KernelVersion: 4.16 139Contact: Stephen Hemminger <sthemmin@microsoft.com> 140Description: Monitor bit associated with channel 141Users: Debugging tools and userspace drivers 142 143What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/ring 144Date: January. 2018 145KernelVersion: 4.16 146Contact: Stephen Hemminger <sthemmin@microsoft.com> 147Description: Binary file created by uio_hv_generic for ring buffer 148Users: Userspace drivers 149 150What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_in_full 151Date: February 2019 152KernelVersion: 5.0 153Contact: Michael Kelley <mikelley@microsoft.com> 154Description: Number of guest to host interrupts caused by the inbound ring 155 buffer transitioning from full to not full while a packet is 156 waiting for buffer space to become available 157Users: Debugging tools 158 159What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_out_empty 160Date: February 2019 161KernelVersion: 5.0 162Contact: Michael Kelley <mikelley@microsoft.com> 163Description: Number of guest to host interrupts caused by the outbound ring 164 buffer transitioning from empty to not empty 165Users: Debugging tools 166 167What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_first 168Date: February 2019 169KernelVersion: 5.0 170Contact: Michael Kelley <mikelley@microsoft.com> 171Description: Number of write operations that were the first to encounter an 172 outbound ring buffer full condition 173Users: Debugging tools 174 175What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_total 176Date: February 2019 177KernelVersion: 5.0 178Contact: Michael Kelley <mikelley@microsoft.com> 179Description: Total number of write operations that encountered an outbound 180 ring buffer full condition 181Users: Debugging tools 182