1 What: /sys/bus/vmbus/hibernation <<
2 Date: Jan 2021 <<
3 KernelVersion: 5.12 <<
4 Contact: Dexuan Cui <decui@microsoft.com <<
5 Description: Whether the host supports hibe <<
6 Users: Daemon that sets up swap parti <<
7 <<
8 What: /sys/bus/vmbus/devices/<UUID>/ 1 What: /sys/bus/vmbus/devices/<UUID>/id
9 Date: Jul 2009 2 Date: Jul 2009
10 KernelVersion: 2.6.31 3 KernelVersion: 2.6.31
11 Contact: K. Y. Srinivasan <kys@microsoft 4 Contact: K. Y. Srinivasan <kys@microsoft.com>
12 Description: The VMBus child_relid of the d 5 Description: The VMBus child_relid of the device's primary channel
13 Users: tools/hv/lsvmbus 6 Users: tools/hv/lsvmbus
14 7
15 What: /sys/bus/vmbus/devices/<UUID>/ 8 What: /sys/bus/vmbus/devices/<UUID>/class_id
16 Date: Jul 2009 9 Date: Jul 2009
17 KernelVersion: 2.6.31 10 KernelVersion: 2.6.31
18 Contact: K. Y. Srinivasan <kys@microsoft 11 Contact: K. Y. Srinivasan <kys@microsoft.com>
19 Description: The VMBus interface type GUID 12 Description: The VMBus interface type GUID of the device
20 Users: tools/hv/lsvmbus 13 Users: tools/hv/lsvmbus
21 14
22 What: /sys/bus/vmbus/devices/<UUID>/ 15 What: /sys/bus/vmbus/devices/<UUID>/device_id
23 Date: Jul 2009 16 Date: Jul 2009
24 KernelVersion: 2.6.31 17 KernelVersion: 2.6.31
25 Contact: K. Y. Srinivasan <kys@microsoft 18 Contact: K. Y. Srinivasan <kys@microsoft.com>
26 Description: The VMBus interface instance G 19 Description: The VMBus interface instance GUID of the device
27 Users: tools/hv/lsvmbus 20 Users: tools/hv/lsvmbus
28 21
29 What: /sys/bus/vmbus/devices/<UUID>/ 22 What: /sys/bus/vmbus/devices/<UUID>/channel_vp_mapping
30 Date: Jul 2015 23 Date: Jul 2015
31 KernelVersion: 4.2.0 24 KernelVersion: 4.2.0
32 Contact: K. Y. Srinivasan <kys@microsoft 25 Contact: K. Y. Srinivasan <kys@microsoft.com>
33 Description: The mapping of which primary/s 26 Description: The mapping of which primary/sub channels are bound to which
34 Virtual Processors. 27 Virtual Processors.
35 Format: <channel's child_relid 28 Format: <channel's child_relid:the bound cpu's number>
36 Users: tools/hv/lsvmbus 29 Users: tools/hv/lsvmbus
37 30
38 What: /sys/bus/vmbus/devices/<UUID>/ 31 What: /sys/bus/vmbus/devices/<UUID>/device
39 Date: Dec. 2015 32 Date: Dec. 2015
40 KernelVersion: 4.5 33 KernelVersion: 4.5
41 Contact: K. Y. Srinivasan <kys@microsoft 34 Contact: K. Y. Srinivasan <kys@microsoft.com>
42 Description: The 16 bit device ID of the de 35 Description: The 16 bit device ID of the device
43 Users: tools/hv/lsvmbus and user leve 36 Users: tools/hv/lsvmbus and user level RDMA libraries
44 37
45 What: /sys/bus/vmbus/devices/<UUID>/ 38 What: /sys/bus/vmbus/devices/<UUID>/vendor
46 Date: Dec. 2015 39 Date: Dec. 2015
47 KernelVersion: 4.5 40 KernelVersion: 4.5
48 Contact: K. Y. Srinivasan <kys@microsoft 41 Contact: K. Y. Srinivasan <kys@microsoft.com>
49 Description: The 16 bit vendor ID of the de 42 Description: The 16 bit vendor ID of the device
50 Users: tools/hv/lsvmbus and user leve 43 Users: tools/hv/lsvmbus and user level RDMA libraries
51 44
52 What: /sys/bus/vmbus/devices/<UUID>/ 45 What: /sys/bus/vmbus/devices/<UUID>/numa_node
53 Date: Jul 2018 46 Date: Jul 2018
54 KernelVersion: 4.19 47 KernelVersion: 4.19
55 Contact: Stephen Hemminger <sthemmin@mic 48 Contact: Stephen Hemminger <sthemmin@microsoft.com>
56 Description: This NUMA node to which the VM 49 Description: This NUMA node to which the VMBUS device is
57 attached, or -1 if the node is 50 attached, or -1 if the node is unknown.
58 51
59 What: /sys/bus/vmbus/devices/<UUID>/ 52 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>
60 Date: September. 2017 53 Date: September. 2017
61 KernelVersion: 4.14 54 KernelVersion: 4.14
62 Contact: Stephen Hemminger <sthemmin@mic 55 Contact: Stephen Hemminger <sthemmin@microsoft.com>
63 Description: Directory for per-channel info 56 Description: Directory for per-channel information
64 NN is the VMBUS relid associat !! 57 NN is the VMBUS relid associtated with the channel.
>> 58
>> 59 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu
>> 60 Date: September. 2017
>> 61 KernelVersion: 4.14
>> 62 Contact: Stephen Hemminger <sthemmin@microsoft.com>
>> 63 Description: VCPU (sub)channel is affinitized to
>> 64 Users: tools/hv/lsvmbus and other debugging tools
65 65
66 What: /sys/bus/vmbus/devices/<UUID>/ 66 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu
67 Date: September. 2017 67 Date: September. 2017
68 KernelVersion: 4.14 68 KernelVersion: 4.14
69 Contact: Stephen Hemminger <sthemmin@mic 69 Contact: Stephen Hemminger <sthemmin@microsoft.com>
70 Description: VCPU (sub)channel is affinitiz 70 Description: VCPU (sub)channel is affinitized to
71 Users: tools/hv/lsvmbus and other deb 71 Users: tools/hv/lsvmbus and other debugging tools
72 72
73 What: /sys/bus/vmbus/devices/<UUID>/ 73 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/in_mask
74 Date: September. 2017 74 Date: September. 2017
75 KernelVersion: 4.14 75 KernelVersion: 4.14
76 Contact: Stephen Hemminger <sthemmin@mic 76 Contact: Stephen Hemminger <sthemmin@microsoft.com>
77 Description: Host to guest channel interrup 77 Description: Host to guest channel interrupt mask
78 Users: Debugging tools 78 Users: Debugging tools
79 79
80 What: /sys/bus/vmbus/devices/<UUID>/ 80 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/latency
81 Date: September. 2017 81 Date: September. 2017
82 KernelVersion: 4.14 82 KernelVersion: 4.14
83 Contact: Stephen Hemminger <sthemmin@mic 83 Contact: Stephen Hemminger <sthemmin@microsoft.com>
84 Description: Channel signaling latency. Thi !! 84 Description: Channel signaling latency
85 performance critical channels <<
86 the monitor page mechanism. <<
87 Users: Debugging tools 85 Users: Debugging tools
88 86
89 What: /sys/bus/vmbus/devices/<UUID>/ 87 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_mask
90 Date: September. 2017 88 Date: September. 2017
91 KernelVersion: 4.14 89 KernelVersion: 4.14
92 Contact: Stephen Hemminger <sthemmin@mic 90 Contact: Stephen Hemminger <sthemmin@microsoft.com>
93 Description: Guest to host channel interrup 91 Description: Guest to host channel interrupt mask
94 Users: Debugging tools 92 Users: Debugging tools
95 93
96 What: /sys/bus/vmbus/devices/<UUID>/ 94 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/pending
97 Date: September. 2017 95 Date: September. 2017
98 KernelVersion: 4.14 96 KernelVersion: 4.14
99 Contact: Stephen Hemminger <sthemmin@mic 97 Contact: Stephen Hemminger <sthemmin@microsoft.com>
100 Description: Channel interrupt pending stat !! 98 Description: Channel interrupt pending state
101 performance critical channels <<
102 the monitor page mechanism. <<
103 Users: Debugging tools 99 Users: Debugging tools
104 100
105 What: /sys/bus/vmbus/devices/<UUID>/ 101 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/read_avail
106 Date: September. 2017 102 Date: September. 2017
107 KernelVersion: 4.14 103 KernelVersion: 4.14
108 Contact: Stephen Hemminger <sthemmin@mic 104 Contact: Stephen Hemminger <sthemmin@microsoft.com>
109 Description: Bytes available to read 105 Description: Bytes available to read
110 Users: Debugging tools 106 Users: Debugging tools
111 107
112 What: /sys/bus/vmbus/devices/<UUID>/ 108 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/write_avail
113 Date: September. 2017 109 Date: September. 2017
114 KernelVersion: 4.14 110 KernelVersion: 4.14
115 Contact: Stephen Hemminger <sthemmin@mic 111 Contact: Stephen Hemminger <sthemmin@microsoft.com>
116 Description: Bytes available to write 112 Description: Bytes available to write
117 Users: Debugging tools 113 Users: Debugging tools
118 114
119 What: /sys/bus/vmbus/devices/<UUID>/ 115 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/events
120 Date: September. 2017 116 Date: September. 2017
121 KernelVersion: 4.14 117 KernelVersion: 4.14
122 Contact: Stephen Hemminger <sthemmin@mic 118 Contact: Stephen Hemminger <sthemmin@microsoft.com>
123 Description: Number of times we have signal 119 Description: Number of times we have signaled the host
124 Users: Debugging tools 120 Users: Debugging tools
125 121
126 What: /sys/bus/vmbus/devices/<UUID>/ 122 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/interrupts
127 Date: September. 2017 123 Date: September. 2017
128 KernelVersion: 4.14 124 KernelVersion: 4.14
129 Contact: Stephen Hemminger <sthemmin@mic 125 Contact: Stephen Hemminger <sthemmin@microsoft.com>
130 Description: Number of times we have taken 126 Description: Number of times we have taken an interrupt (incoming)
131 Users: Debugging tools 127 Users: Debugging tools
132 128
133 What: /sys/bus/vmbus/devices/<UUID>/ 129 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/subchannel_id
134 Date: January. 2018 130 Date: January. 2018
135 KernelVersion: 4.16 131 KernelVersion: 4.16
136 Contact: Stephen Hemminger <sthemmin@mic 132 Contact: Stephen Hemminger <sthemmin@microsoft.com>
137 Description: Subchannel ID associated with 133 Description: Subchannel ID associated with VMBUS channel
138 Users: Debugging tools and userspace 134 Users: Debugging tools and userspace drivers
139 135
140 What: /sys/bus/vmbus/devices/<UUID>/ 136 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/monitor_id
141 Date: January. 2018 137 Date: January. 2018
142 KernelVersion: 4.16 138 KernelVersion: 4.16
143 Contact: Stephen Hemminger <sthemmin@mic 139 Contact: Stephen Hemminger <sthemmin@microsoft.com>
144 Description: Monitor bit associated with ch !! 140 Description: Monitor bit associated with channel
145 for performance critical chann <<
146 use the monitor page mechanism <<
147 Users: Debugging tools and userspace 141 Users: Debugging tools and userspace drivers
148 142
149 What: /sys/bus/vmbus/devices/<UUID>/ 143 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/ring
150 Date: January. 2018 144 Date: January. 2018
151 KernelVersion: 4.16 145 KernelVersion: 4.16
152 Contact: Stephen Hemminger <sthemmin@mic 146 Contact: Stephen Hemminger <sthemmin@microsoft.com>
153 Description: Binary file created by uio_hv_ 147 Description: Binary file created by uio_hv_generic for ring buffer
154 Users: Userspace drivers 148 Users: Userspace drivers
155 149
156 What: /sys/bus/vmbus/devices/<UUID>/ 150 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_in_full
157 Date: February 2019 151 Date: February 2019
158 KernelVersion: 5.0 152 KernelVersion: 5.0
159 Contact: Michael Kelley <mikelley@micros 153 Contact: Michael Kelley <mikelley@microsoft.com>
160 Description: Number of guest to host interr 154 Description: Number of guest to host interrupts caused by the inbound ring
161 buffer transitioning from full 155 buffer transitioning from full to not full while a packet is
162 waiting for buffer space to be 156 waiting for buffer space to become available
163 Users: Debugging tools 157 Users: Debugging tools
164 158
165 What: /sys/bus/vmbus/devices/<UUID>/ 159 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_out_empty
166 Date: February 2019 160 Date: February 2019
167 KernelVersion: 5.0 161 KernelVersion: 5.0
168 Contact: Michael Kelley <mikelley@micros 162 Contact: Michael Kelley <mikelley@microsoft.com>
169 Description: Number of guest to host interr 163 Description: Number of guest to host interrupts caused by the outbound ring
170 buffer transitioning from empt 164 buffer transitioning from empty to not empty
171 Users: Debugging tools 165 Users: Debugging tools
172 166
173 What: /sys/bus/vmbus/devices/<UUID>/ 167 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_first
174 Date: February 2019 168 Date: February 2019
175 KernelVersion: 5.0 169 KernelVersion: 5.0
176 Contact: Michael Kelley <mikelley@micros 170 Contact: Michael Kelley <mikelley@microsoft.com>
177 Description: Number of write operations tha 171 Description: Number of write operations that were the first to encounter an
178 outbound ring buffer full cond 172 outbound ring buffer full condition
179 Users: Debugging tools 173 Users: Debugging tools
180 174
181 What: /sys/bus/vmbus/devices/<UUID>/ 175 What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_total
182 Date: February 2019 176 Date: February 2019
183 KernelVersion: 5.0 177 KernelVersion: 5.0
184 Contact: Michael Kelley <mikelley@micros 178 Contact: Michael Kelley <mikelley@microsoft.com>
185 Description: Total number of write operatio 179 Description: Total number of write operations that encountered an outbound
186 ring buffer full condition 180 ring buffer full condition
187 Users: Debugging tools 181 Users: Debugging tools
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