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Linux gator3171.hostgator.com 4.19.286-203.ELK.el7.x86_64 #1 SMP Wed Jun 14 04:33:55 CDT 2023 x86_64 |
| Current File : //usr/libexec/kcare/virt-what |
#!/bin/bash -
# virt-what. Generated from virt-what.in by configure.
# Copyright (C) 2008-2011 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
# 'virt-what' tries to detect the type of virtualization being
# used (or none at all if we're running on bare-metal). It prints
# out one or more lines each being a 'fact' about the virtualization.
#
# Please see also the manual page virt-what(1).
# This script should be run as root.
#
# The following resources were useful in writing this script:
# . http://dmo.ca/blog/detecting-virtualization-on-linux/
# Do not allow unset variables, and set defaults.
set -u
root=''
skip_qemu_kvm=false
VERSION="1.14"
function fail {
echo "virt-what: $1" >&2
exit 1
}
function usage {
echo "virt-what [options]"
echo "Options:"
echo " --help Display this help"
echo " --version Display version and exit"
exit 0
}
# Handle the command line arguments, if any.
TEMP=$(getopt -o v --long help --long version --long test-root: -n 'virt-what' -- "$@")
if [ $? != 0 ]; then exit 1; fi
eval set -- "$TEMP"
while true; do
case "$1" in
--help) usage ;;
--test-root)
# Deliberately undocumented: used for 'make check'.
root="$2"
shift 2
;;
-v|--version) echo "$VERSION"; exit 0 ;;
--) shift; break ;;
*) fail "internal error ($1)" ;;
esac
done
# Add /sbin and /usr/sbin to the path so we can find system
# binaries like dmidecode.
# Add /usr/libexec to the path so we can find the helper binary.
prefix=/usr/local
exec_prefix=${prefix}
PATH="${root}/usr/libexec/kcare:${root}/sbin:${root}/usr/sbin:${PATH}"
# Check we're running as root.
if [ "x$root" = "x" ] && [ "$EUID" -ne 0 ]; then
fail "this script must be run as root"
fi
# Many fullvirt hypervisors give an indication through CPUID. Use the
# helper program to get this information.
cpuid=$(virt-what-cpuid-helper)
# Check for various products in the BIOS information.
# Note that dmidecode doesn't exist on non-PC architectures. On these,
# this will return an error which is ignored (error message redirected
# into $dmi variable).
dmi=$(LANG=C dmidecode 2>&1)
# Architecture.
# Note for the purpose of testing, we only call uname with -p option.
arch=$(uname -p)
# Check for VMware.
# cpuid check added by Chetan Loke.
if [ "$cpuid" = "VMwareVMware" ]; then
echo vmware
elif echo "$dmi" | grep -q 'Manufacturer: VMware'; then
echo vmware
fi
# Check for Hyper-V.
# http://blogs.msdn.com/b/sqlosteam/archive/2010/10/30/is-this-real-the-metaphysics-of-hardware-virtualization.aspx
if [ "$cpuid" = "Microsoft Hv" ]; then
echo hyperv
fi
# Check for VirtualPC.
# The negative check for cpuid is to distinguish this from Hyper-V
# which also has the same manufacturer string in the SM-BIOS data.
if [ "$cpuid" != "Microsoft Hv" ] &&
echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation'; then
echo virtualpc
fi
# Check for VirtualBox.
# Added by Laurent Léonard.
if echo "$dmi" | grep -q 'Manufacturer: innotek GmbH'; then
echo virtualbox
fi
# Check for OpenVZ / Virtuozzo.
# Added by Evgeniy Sokolov.
# /proc/vz - always exists if OpenVZ kernel is running (inside and outside
# container)
# /proc/bc - exists on node, but not inside container.
if [ -d "${root}/proc/vz" -a ! -d "${root}/proc/bc" ]; then
echo openvz
fi
# Check for LXC containers
# http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface
# Added by Marc Fournier
if [ -e "${root}/proc/1/environ" ] &&
cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container='; then
echo lxc
fi
# Check for Linux-VServer
if cat "${root}/proc/self/status" | grep -q "VxID: [0-9]*"; then
echo linux_vserver
if grep -q "VxID: 0$" "${root}/proc/self/status"; then
echo linux_vserver-host
else
echo linux_vserver-guest
fi
fi
# Check for UML.
# Added by Laurent Léonard.
if grep -q 'UML' "${root}/proc/cpuinfo"; then
echo uml
fi
# Check for IBM PowerVM Lx86 Linux/x86 emulator.
if grep -q '^vendor_id.*PowerVM Lx86' "${root}/proc/cpuinfo"; then
echo powervm_lx86
fi
# Check for Hitachi Virtualization Manager (HVM) Virtage logical partitioning.
if echo "$dmi" | grep -q 'Manufacturer.*HITACHI' &&
echo "$dmi" | grep -q 'Product.* LPAR'; then
echo virtage
fi
# Check for IBM SystemZ.
if grep -q '^vendor_id.*IBM/S390' "${root}/proc/cpuinfo"; then
echo ibm_systemz
if [ -f "${root}/proc/sysinfo" ]; then
if grep -q 'VM.*Control Program.*z/VM' "${root}/proc/sysinfo"; then
echo ibm_systemz-zvm
elif grep -q '^LPAR' "${root}/proc/sysinfo"; then
echo ibm_systemz-lpar
else
# This is unlikely to be correct.
echo ibm_systemz-direct
fi
fi
fi
# Check for Parallels.
if echo "$dmi" | grep -q 'Vendor: Parallels'; then
echo parallels
skip_qemu_kvm=true
fi
# Check for Xen.
if [ "$cpuid" = "XenVMMXenVMM" ]; then
echo xen; echo xen-hvm
skip_qemu_kvm=true
elif [ -d "${root}/proc/xen" ]; then
echo xen
if grep -q "control_d" "${root}/proc/xen/capabilities" 2>/dev/null; then
echo xen-dom0
else
echo xen-domU
fi
skip_qemu_kvm=true
elif [ -f "${root}/sys/hypervisor/type" ] &&
grep -q "xen" "${root}/sys/hypervisor/type"; then
# Ordinary kernel with pv_ops. There does not seem to be
# enough information at present to tell whether this is dom0
# or domU. XXX
echo xen
elif [ "$arch" = "ia64" ]; then
if [ -d "${root}/sys/bus/xen" -a ! -d "${root}/sys/bus/xen-backend" ]; then
# PV-on-HVM drivers installed in a Xen guest.
echo xen
echo xen-hvm
else
# There is no virt leaf on IA64 HVM. This is a last-ditch
# attempt to detect something is virtualized by using a
# timing attack.
virt-what-ia64-xen-rdtsc-test > /dev/null 2>&1
case "$?" in
0) ;; # not virtual
1) # Could be some sort of virt, or could just be a bit slow.
echo virt
esac
fi
fi
# Check for QEMU/KVM.
#
# Parallels exports KVMKVMKVM leaf, so skip this test if we've already
# seen that it's Parallels. Xen uses QEMU as the device model, so
# skip this test if we know it is Xen.
if ! "$skip_qemu_kvm"; then
if [ "$cpuid" = "KVMKVMKVM" ]; then
echo kvm
else
# XXX This is known to fail for qemu with the explicit -cpu
# option, since /proc/cpuinfo will not contain the QEMU
# string. The long term fix for this would be to export
# another CPUID leaf for non-accelerated qemu.
if grep -q 'QEMU' "${root}/proc/cpuinfo"; then
echo qemu
fi
fi
fi