xref: /openbmc/linux/tools/hv/lsvmbus (revision ba61bb17)
1#!/usr/bin/env python
2# SPDX-License-Identifier: GPL-2.0
3
4import os
5from optparse import OptionParser
6
7parser = OptionParser()
8parser.add_option("-v", "--verbose", dest="verbose",
9		   help="print verbose messages. Try -vv, -vvv for \
10			more verbose messages", action="count")
11
12(options, args) = parser.parse_args()
13
14verbose = 0
15if options.verbose is not None:
16	verbose = options.verbose
17
18vmbus_sys_path = '/sys/bus/vmbus/devices'
19if not os.path.isdir(vmbus_sys_path):
20	print "%s doesn't exist: exiting..." % vmbus_sys_path
21	exit(-1)
22
23vmbus_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
45def get_vmbus_dev_attr(dev_name, attr):
46	try:
47		f = open('%s/%s/%s' % (vmbus_sys_path, dev_name, attr), 'r')
48		lines = f.readlines()
49		f.close()
50	except IOError:
51		lines = []
52
53	return lines
54
55class VMBus_Dev:
56	pass
57
58
59vmbus_dev_list = []
60
61for f in os.listdir(vmbus_sys_path):
62	vmbus_id = get_vmbus_dev_attr(f, 'id')[0].strip()
63	class_id = get_vmbus_dev_attr(f, 'class_id')[0].strip()
64	device_id = get_vmbus_dev_attr(f, 'device_id')[0].strip()
65	dev_desc = vmbus_dev_dict.get(class_id, 'Unknown')
66
67	chn_vp_mapping = get_vmbus_dev_attr(f, 'channel_vp_mapping')
68	chn_vp_mapping = [c.strip() for c in chn_vp_mapping]
69	chn_vp_mapping = sorted(chn_vp_mapping,
70		key = lambda c : int(c.split(':')[0]))
71
72	chn_vp_mapping = ['\tRel_ID=%s, target_cpu=%s' %
73				(c.split(':')[0], c.split(':')[1])
74					for c in chn_vp_mapping]
75	d = VMBus_Dev()
76	d.sysfs_path = '%s/%s' % (vmbus_sys_path, f)
77	d.vmbus_id = vmbus_id
78	d.class_id = class_id
79	d.device_id = device_id
80	d.dev_desc = dev_desc
81	d.chn_vp_mapping = '\n'.join(chn_vp_mapping)
82	if d.chn_vp_mapping:
83		d.chn_vp_mapping += '\n'
84
85	vmbus_dev_list.append(d)
86
87
88vmbus_dev_list  = sorted(vmbus_dev_list, key = lambda d : int(d.vmbus_id))
89
90format0 = '%2s: %s'
91format1 = '%2s: Class_ID = %s - %s\n%s'
92format2 = '%2s: Class_ID = %s - %s\n\tDevice_ID = %s\n\tSysfs path: %s\n%s'
93
94for d in vmbus_dev_list:
95	if verbose == 0:
96		print ('VMBUS ID ' + format0) % (d.vmbus_id, d.dev_desc)
97	elif verbose == 1:
98		print ('VMBUS ID ' + format1) %	\
99			(d.vmbus_id, d.class_id, d.dev_desc, d.chn_vp_mapping)
100	else:
101		print ('VMBUS ID ' + format2) % \
102			(d.vmbus_id, d.class_id, d.dev_desc, \
103			d.device_id, d.sysfs_path, d.chn_vp_mapping)
104