1 #!/usr/bin/env python3
2 # SPDX-License-Identifier: GPL-2.0
3
4 import os
5 from optparse import OptionParser
6
7 help_msg = "print verbose messages. Try -vv, -vvv for more verbose messages"
8 parser = OptionParser()
9 parser.add_option(
10 "-v", "--verbose", dest="verbose", help=help_msg, action="count")
11
12 (options, args) = parser.parse_args()
13
14 verbose = 0
15 if options.verbose is not None:
16 verbose = options.verbose
17
18 vmbus_sys_path = '/sys/bus/vmbus/devices'
19 if not os.path.isdir(vmbus_sys_path):
20 print("%s doesn't exist: exiting..." % vmbus_sys_path)
21 exit(-1)
22
23 vmbus_dev_dict = {
24 '{0e0b6031-5213-4934-818b-38d90ced39db}': '[Operating system shutdown]',
25 '{9527e630-d0ae-497b-adce-e80ab0175caf}': '[Time Synchronization]',
26 '{57164f39-9115-4e78-ab55-382f3bd5422d}': '[Heartbeat]',
27 '{a9a0f4e7-5a45-4d96-b827-8a841e8c03e6}': '[Data Exchange]',
28 '{35fa2e29-ea23-4236-96ae-3a6ebacba440}': '[Backup (volume checkpoint)]',
29 '{34d14be3-dee4-41c8-9ae7-6b174977c192}': '[Guest services]',
30 '{525074dc-8985-46e2-8057-a307dc18a502}': '[Dynamic Memory]',
31 '{cfa8b69e-5b4a-4cc0-b98b-8ba1a1f3f95a}': 'Synthetic mouse',
32 '{f912ad6d-2b17-48ea-bd65-f927a61c7684}': 'Synthetic keyboard',
33 '{da0a7802-e377-4aac-8e77-0558eb1073f8}': 'Synthetic framebuffer adapter',
34 '{f8615163-df3e-46c5-913f-f2d2f965ed0e}': 'Synthetic network adapter',
35 '{32412632-86cb-44a2-9b5c-50d1417354f5}': 'Synthetic IDE Controller',
36 '{ba6163d9-04a1-4d29-b605-72e2ffb1dc7f}': 'Synthetic SCSI Controller',
37 '{2f9bcc4a-0069-4af3-b76b-6fd0be528cda}': 'Synthetic fiber channel adapter',
38 '{8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501}': 'Synthetic RDMA adapter',
39 '{44c4f61d-4444-4400-9d52-802e27ede19f}': 'PCI Express pass-through',
40 '{276aacf4-ac15-426c-98dd-7521ad3f01fe}': '[Reserved system device]',
41 '{f8e65716-3cb3-4a06-9a60-1889c5cccab5}': '[Reserved system device]',
42 '{3375baf4-9e15-4b30-b765-67acb10d607b}': '[Reserved system device]',
43 }
44
45
46 def get_vmbus_dev_attr(dev_name, attr):
47 try:
48 f = open('%s/%s/%s' % (vmbus_sys_path, dev_name, attr), 'r')
49 lines = f.readlines()
50 f.close()
51 except IOError:
52 lines = []
53
54 return lines
55
56
57 class VMBus_Dev:
58 pass
59
60
61 vmbus_dev_list = []
62
63 for f in os.listdir(vmbus_sys_path):
64 vmbus_id = get_vmbus_dev_attr(f, 'id')[0].strip()
65 class_id = get_vmbus_dev_attr(f, 'class_id')[0].strip()
66 device_id = get_vmbus_dev_attr(f, 'device_id')[0].strip()
67 dev_desc = vmbus_dev_dict.get(class_id, 'Unknown')
68
69 chn_vp_mapping = get_vmbus_dev_attr(f, 'channel_vp_mapping')
70 chn_vp_mapping = [c.strip() for c in chn_vp_mapping]
71 chn_vp_mapping = sorted(
72 chn_vp_mapping, key=lambda c: int(c.split(':')[0]))
73
74 chn_vp_mapping = [
75 '\tRel_ID=%s, target_cpu=%s' %
76 (c.split(':')[0], c.split(':')[1]) for c in chn_vp_mapping
77 ]
78 d = VMBus_Dev()
79 d.sysfs_path = '%s/%s' % (vmbus_sys_path, f)
80 d.vmbus_id = vmbus_id
81 d.class_id = class_id
82 d.device_id = device_id
83 d.dev_desc = dev_desc
84 d.chn_vp_mapping = '\n'.join(chn_vp_mapping)
85 if d.chn_vp_mapping:
86 d.chn_vp_mapping += '\n'
87
88 vmbus_dev_list.append(d)
89
90
91 vmbus_dev_list = sorted(vmbus_dev_list, key=lambda d: int(d.vmbus_id))
92
93 format0 = '%2s: %s'
94 format1 = '%2s: Class_ID = %s - %s\n%s'
95 format2 = '%2s: Class_ID = %s - %s\n\tDevice_ID = %s\n\tSysfs path: %s\n%s'
96
97 for d in vmbus_dev_list:
98 if verbose == 0:
99 print(('VMBUS ID ' + format0) % (d.vmbus_id, d.dev_desc))
100 elif verbose == 1:
101 print(
102 ('VMBUS ID ' + format1) %
103 (d.vmbus_id, d.class_id, d.dev_desc, d.chn_vp_mapping)
104 )
105 else:
106 print(
107 ('VMBUS ID ' + format2) %
108 (
109 d.vmbus_id, d.class_id, d.dev_desc,
110 d.device_id, d.sysfs_path, d.chn_vp_mapping
111 )
112 )
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