From 502d84bd1aa2445b13ff75e8ac2a39d249f791ee Mon Sep 17 00:00:00 2001 From: Dexuan Cui Date: Wed, 5 Aug 2015 00:52:44 -0700 Subject: [PATCH] tools: hv: add a python script lsvmbus to list VMBus devices By default lsvmbus lists all the devices in the VMBus. With -v or -vv, more information is printed, including the VMBus Rel_ID, class ID, device ID and which channel is bound to which virtual processor, etc. Signed-off-by: Dexuan Cui Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- tools/hv/lsvmbus | 101 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 tools/hv/lsvmbus diff --git a/tools/hv/lsvmbus b/tools/hv/lsvmbus new file mode 100644 index 000000000000..162a3784d80e --- /dev/null +++ b/tools/hv/lsvmbus @@ -0,0 +1,101 @@ +#!/usr/bin/env python + +import os +from optparse import OptionParser + +parser = OptionParser() +parser.add_option("-v", "--verbose", dest="verbose", + help="print verbose messages. Try -vv, -vvv for \ + more verbose messages", action="count") + +(options, args) = parser.parse_args() + +verbose = 0 +if options.verbose is not None: + verbose = options.verbose + +vmbus_sys_path = '/sys/bus/vmbus/devices' +if not os.path.isdir(vmbus_sys_path): + print "%s doesn't exist: exiting..." % vmbus_sys_path + exit(-1) + +vmbus_dev_dict = { + '{0e0b6031-5213-4934-818b-38d90ced39db}' : '[Operating system shutdown]', + '{9527e630-d0ae-497b-adce-e80ab0175caf}' : '[Time Synchronization]', + '{57164f39-9115-4e78-ab55-382f3bd5422d}' : '[Heartbeat]', + '{a9a0f4e7-5a45-4d96-b827-8a841e8c03e6}' : '[Data Exchange]', + '{35fa2e29-ea23-4236-96ae-3a6ebacba440}' : '[Backup (volume checkpoint)]', + '{34d14be3-dee4-41c8-9ae7-6b174977c192}' : '[Guest services]', + '{525074dc-8985-46e2-8057-a307dc18a502}' : '[Dynamic Memory]', + '{cfa8b69e-5b4a-4cc0-b98b-8ba1a1f3f95a}' : 'Synthetic mouse', + '{f912ad6d-2b17-48ea-bd65-f927a61c7684}' : 'Synthetic keyboard', + '{da0a7802-e377-4aac-8e77-0558eb1073f8}' : 'Synthetic framebuffer adapter', + '{f8615163-df3e-46c5-913f-f2d2f965ed0e}' : 'Synthetic network adapter', + '{32412632-86cb-44a2-9b5c-50d1417354f5}' : 'Synthetic IDE Controller', + '{ba6163d9-04a1-4d29-b605-72e2ffb1dc7f}' : 'Synthetic SCSI Controller', + '{2f9bcc4a-0069-4af3-b76b-6fd0be528cda}' : 'Synthetic fiber channel adapter', + '{8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501}' : 'Synthetic RDMA adapter', + '{276aacf4-ac15-426c-98dd-7521ad3f01fe}' : '[Reserved system device]', + '{f8e65716-3cb3-4a06-9a60-1889c5cccab5}' : '[Reserved system device]', + '{3375baf4-9e15-4b30-b765-67acb10d607b}' : '[Reserved system device]', +} + +def get_vmbus_dev_attr(dev_name, attr): + try: + f = open('%s/%s/%s' % (vmbus_sys_path, dev_name, attr), 'r') + lines = f.readlines() + f.close() + except IOError: + lines = [] + + return lines + +class VMBus_Dev: + pass + + +vmbus_dev_list = [] + +for f in os.listdir(vmbus_sys_path): + vmbus_id = get_vmbus_dev_attr(f, 'id')[0].strip() + class_id = get_vmbus_dev_attr(f, 'class_id')[0].strip() + device_id = get_vmbus_dev_attr(f, 'device_id')[0].strip() + dev_desc = vmbus_dev_dict.get(class_id, 'Unknown') + + chn_vp_mapping = get_vmbus_dev_attr(f, 'channel_vp_mapping') + chn_vp_mapping = [c.strip() for c in chn_vp_mapping] + chn_vp_mapping = sorted(chn_vp_mapping, + key = lambda c : int(c.split(':')[0])) + + chn_vp_mapping = ['\tRel_ID=%s, target_cpu=%s' % + (c.split(':')[0], c.split(':')[1]) + for c in chn_vp_mapping] + d = VMBus_Dev() + d.sysfs_path = '%s/%s' % (vmbus_sys_path, f) + d.vmbus_id = vmbus_id + d.class_id = class_id + d.device_id = device_id + d.dev_desc = dev_desc + d.chn_vp_mapping = '\n'.join(chn_vp_mapping) + if d.chn_vp_mapping: + d.chn_vp_mapping += '\n' + + vmbus_dev_list.append(d) + + +vmbus_dev_list = sorted(vmbus_dev_list, key = lambda d : int(d.vmbus_id)) + +format0 = '%2s: %s' +format1 = '%2s: Class_ID = %s - %s\n%s' +format2 = '%2s: Class_ID = %s - %s\n\tDevice_ID = %s\n\tSysfs path: %s\n%s' + +for d in vmbus_dev_list: + if verbose == 0: + print ('VMBUS ID ' + format0) % (d.vmbus_id, d.dev_desc) + elif verbose == 1: + print ('VMBUS ID ' + format1) % \ + (d.vmbus_id, d.class_id, d.dev_desc, d.chn_vp_mapping) + else: + print ('VMBUS ID ' + format2) % \ + (d.vmbus_id, d.class_id, d.dev_desc, \ + d.device_id, d.sysfs_path, d.chn_vp_mapping) -- 2.34.1