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xen.py
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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.report.plugins import Plugin, RedHatPlugin import os import re class Xen(Plugin, RedHatPlugin): short_desc = '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 :