tools/hv/lsvmbus

   1 #!/usr/bin/env python
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 import os
   5 from optparse import OptionParser
   6
   7 parser = OptionParser()
   8 parser.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
  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 def 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
  55 class VMBus_Dev:
  56         pass
  57
  58
  59 vmbus_dev_list = []
  60
  61 for 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
  88 vmbus_dev_list  = sorted(vmbus_dev_list, key = lambda d : int(d.vmbus_id))
  89
  90 format0 = '%2s: %s'
  91 format1 = '%2s: Class_ID = %s - %s\n%s'
  92 format2 = '%2s: Class_ID = %s - %s\n\tDevice_ID = %s\n\tSysfs path: %s\n%s'
  93
  94 for 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)