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# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.
from sos.plugins import Plugin, RedHatPlugin
import os
import re
class Xen(Plugin, RedHatPlugin):
"""Xen virtualization
"""
plugin_name = 'xen'
profiles = ('virt',)
def determine_xen_host(self):
if os.access("/proc/acpi/dsdt", os.R_OK):
result = self.exec_cmd("grep -qi xen /proc/acpi/dsdt")
if result['status'] == 0:
return "hvm"
if os.access("/proc/xen/capabilities", os.R_OK):
result = self.exec_cmd("grep -q control_d /proc/xen/capabilities")
if result['status'] == 0:
return "dom0"
else:
return "domU"
return "baremetal"
def check_enabled(self):
return (self.determine_xen_host() == "baremetal")
def is_running_xenstored(self):
xs_pid = self.exec_cmd("pidof xenstored")['output']
xs_pidnum = re.split('\n$', xs_pid)[0]
return xs_pidnum.isdigit()
def dom_collect_proc(self):
self.add_copy_spec([
"/proc/xen/balloon",
"/proc/xen/capabilities",
"/proc/xen/xsd_kva",
"/proc/xen/xsd_port"])
# determine if CPU has PAE support
self.add_cmd_output("grep pae /proc/cpuinfo")
# determine if CPU has Intel-VT or AMD-V support
self.add_cmd_output("egrep -e 'vmx|svm' /proc/cpuinfo")
def setup(self):
host_type = self.determine_xen_host()
if host_type == "domU":
# we should collect /proc/xen and /sys/hypervisor
self.dom_collect_proc()
# determine if hardware virtualization support is enabled
# in BIOS: /sys/hypervisor/properties/capabilities
self.add_copy_spec("/sys/hypervisor")
elif host_type == "hvm":
# what do we collect here???
pass
elif host_type == "dom0":
# default of dom0, collect lots of system information
self.add_copy_spec([
"/var/log/xen",
"/etc/xen",
"/sys/hypervisor/version",
"/sys/hypervisor/compilation",
"/sys/hypervisor/properties",
"/sys/hypervisor/type"])
self.add_cmd_output([
"xm dmesg",
"xm info",
"xm list",
"xm list --long",
"bridge link show"
])
self.dom_collect_proc()
if self.is_running_xenstored():
self.add_copy_spec("/sys/hypervisor/uuid")
self.add_cmd_output("xenstore-ls")
else:
# we need tdb instead of xenstore-ls if cannot get it.
self.add_copy_spec("/var/lib/xenstored/tdb")
# FIXME: we *might* want to collect things in /sys/bus/xen*,
# /sys/class/xen*, /sys/devices/xen*, /sys/modules/blk*,
# /sys/modules/net*, but I've never heard of them actually being
# useful, so I'll leave it out for now
else:
# for bare-metal, we don't have to do anything special
return # USEFUL
self.add_custom_text("Xen hostType: "+host_type)
# vim: set et ts=4 sw=4 :
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