0001 #!/usr/bin/env python
0002 # SPDX-License-Identifier: GPL-2.0
0003
0004 import os
0005 from optparse import OptionParser
0006
0007 help_msg = "print verbose messages. Try -vv, -vvv for more verbose messages"
0008 parser = OptionParser()
0009 parser.add_option(
0010 "-v", "--verbose", dest="verbose", help=help_msg, action="count")
0011
0012 (options, args) = parser.parse_args()
0013
0014 verbose = 0
0015 if options.verbose is not None:
0016 verbose = options.verbose
0017
0018 vmbus_sys_path = '/sys/bus/vmbus/devices'
0019 if not os.path.isdir(vmbus_sys_path):
0020 print("%s doesn't exist: exiting..." % vmbus_sys_path)
0021 exit(-1)
0022
0023 vmbus_dev_dict = {
0024 '{0e0b6031-5213-4934-818b-38d90ced39db}': '[Operating system shutdown]',
0025 '{9527e630-d0ae-497b-adce-e80ab0175caf}': '[Time Synchronization]',
0026 '{57164f39-9115-4e78-ab55-382f3bd5422d}': '[Heartbeat]',
0027 '{a9a0f4e7-5a45-4d96-b827-8a841e8c03e6}': '[Data Exchange]',
0028 '{35fa2e29-ea23-4236-96ae-3a6ebacba440}': '[Backup (volume checkpoint)]',
0029 '{34d14be3-dee4-41c8-9ae7-6b174977c192}': '[Guest services]',
0030 '{525074dc-8985-46e2-8057-a307dc18a502}': '[Dynamic Memory]',
0031 '{cfa8b69e-5b4a-4cc0-b98b-8ba1a1f3f95a}': 'Synthetic mouse',
0032 '{f912ad6d-2b17-48ea-bd65-f927a61c7684}': 'Synthetic keyboard',
0033 '{da0a7802-e377-4aac-8e77-0558eb1073f8}': 'Synthetic framebuffer adapter',
0034 '{f8615163-df3e-46c5-913f-f2d2f965ed0e}': 'Synthetic network adapter',
0035 '{32412632-86cb-44a2-9b5c-50d1417354f5}': 'Synthetic IDE Controller',
0036 '{ba6163d9-04a1-4d29-b605-72e2ffb1dc7f}': 'Synthetic SCSI Controller',
0037 '{2f9bcc4a-0069-4af3-b76b-6fd0be528cda}': 'Synthetic fiber channel adapter',
0038 '{8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501}': 'Synthetic RDMA adapter',
0039 '{44c4f61d-4444-4400-9d52-802e27ede19f}': 'PCI Express pass-through',
0040 '{276aacf4-ac15-426c-98dd-7521ad3f01fe}': '[Reserved system device]',
0041 '{f8e65716-3cb3-4a06-9a60-1889c5cccab5}': '[Reserved system device]',
0042 '{3375baf4-9e15-4b30-b765-67acb10d607b}': '[Reserved system device]',
0043 }
0044
0045
0046 def get_vmbus_dev_attr(dev_name, attr):
0047 try:
0048 f = open('%s/%s/%s' % (vmbus_sys_path, dev_name, attr), 'r')
0049 lines = f.readlines()
0050 f.close()
0051 except IOError:
0052 lines = []
0053
0054 return lines
0055
0056
0057 class VMBus_Dev:
0058 pass
0059
0060
0061 vmbus_dev_list = []
0062
0063 for f in os.listdir(vmbus_sys_path):
0064 vmbus_id = get_vmbus_dev_attr(f, 'id')[0].strip()
0065 class_id = get_vmbus_dev_attr(f, 'class_id')[0].strip()
0066 device_id = get_vmbus_dev_attr(f, 'device_id')[0].strip()
0067 dev_desc = vmbus_dev_dict.get(class_id, 'Unknown')
0068
0069 chn_vp_mapping = get_vmbus_dev_attr(f, 'channel_vp_mapping')
0070 chn_vp_mapping = [c.strip() for c in chn_vp_mapping]
0071 chn_vp_mapping = sorted(
0072 chn_vp_mapping, key=lambda c: int(c.split(':')[0]))
0073
0074 chn_vp_mapping = [
0075 '\tRel_ID=%s, target_cpu=%s' %
0076 (c.split(':')[0], c.split(':')[1]) for c in chn_vp_mapping
0077 ]
0078 d = VMBus_Dev()
0079 d.sysfs_path = '%s/%s' % (vmbus_sys_path, f)
0080 d.vmbus_id = vmbus_id
0081 d.class_id = class_id
0082 d.device_id = device_id
0083 d.dev_desc = dev_desc
0084 d.chn_vp_mapping = '\n'.join(chn_vp_mapping)
0085 if d.chn_vp_mapping:
0086 d.chn_vp_mapping += '\n'
0087
0088 vmbus_dev_list.append(d)
0089
0090
0091 vmbus_dev_list = sorted(vmbus_dev_list, key=lambda d: int(d.vmbus_id))
0092
0093 format0 = '%2s: %s'
0094 format1 = '%2s: Class_ID = %s - %s\n%s'
0095 format2 = '%2s: Class_ID = %s - %s\n\tDevice_ID = %s\n\tSysfs path: %s\n%s'
0096
0097 for d in vmbus_dev_list:
0098 if verbose == 0:
0099 print(('VMBUS ID ' + format0) % (d.vmbus_id, d.dev_desc))
0100 elif verbose == 1:
0101 print(
0102 ('VMBUS ID ' + format1) %
0103 (d.vmbus_id, d.class_id, d.dev_desc, d.chn_vp_mapping)
0104 )
0105 else:
0106 print(
0107 ('VMBUS ID ' + format2) %
0108 (
0109 d.vmbus_id, d.class_id, d.dev_desc,
0110 d.device_id, d.sysfs_path, d.chn_vp_mapping
0111 )
0112 )
