#!/bin/sh - # virt-what. Generated from virt-what.in by configure. # Copyright (C) 2008-2017 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 skip_lkvm = false VERSION = "1.20" have_cpuinfo ( ) { test -e " ${root} /proc/cpuinfo" } use_sysctl ( ) { # Lacking /proc, on some systems sysctl can be used instead. OS =$ ( uname ) || fail "failed to get operating system name" [ " $OS " = "OpenBSD" ] } fail ( ) { echo "virt-what: $1" >& 2 exit 1 } 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. while test $# -gt 0 ; do case "$1" in --help ) usage ;; --test-root = * ) # Deliberately undocumented: used for 'make check'. root =$ ( echo "$1" | sed 's/.*=//' ) shift 1 test -z " $root " && fail "--test-root option requires a value" ;; -v | --version ) echo " $VERSION " ; exit 0 ;; -- ) shift ; break ;; * ) fail "unrecognized option '$1'" ;; esac done test $# -gt 0 && fail "extra operand '$1'" # 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} ${exec_prefix} /libexec: ${root} /sbin: ${root} /usr/sbin: ${PATH} " export PATH # Check we're running as root. EFFUID =$ ( id -u ) || fail "failed to get current user id" if [ "x $root " = "x" ] && [ " $EFFUID " -ne 0 ] ; then fail "this script must be run as root" fi # Try to locate the CPU-ID helper program CPUID_HELPER =$ ( which virt-what-cpuid-helper 2 >/ dev / null ) if [ -z " $CPUID_HELPER " ] ; then fail "virt-what-cpuid-helper program not found in \$ PATH" fi # Many fullvirt hypervisors give an indication through CPUID. Use the # helper program to get this information. cpuid =$ ( virt-what-cpuid-helper ) # Check for various products in the BIOS information. # Note that dmidecode doesn't exist on all architectures. On the ones # it does not, then this will return an error, which is ignored (error # message redirected into the $dmi variable). dmi =$ ( LANG =C dmidecode 2 >& 1 ) # Architecture. # Note for the purpose of testing, we only call uname with -m option. arch =$ ( uname -m | sed -e 's/i.86/i386/' | sed -e 's/arm.*/arm/' ) # 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 L�onard. if echo " $dmi " | grep -q 'Manufacturer: innotek GmbH' ; then echo virtualbox fi # Check for bhyve. if [ " $cpuid " = "bhyve bhyve " ] ; then echo bhyve elif echo " $dmi " | grep -q "Vendor: BHYVE" ; then echo bhyve 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' '

' | grep -Eiq '^container=' ; then echo lxc fi # Check for Linux-VServer if test -e " ${root} /proc/self/status" \ && 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 L�onard. if have_cpuinfo && grep -q 'UML' " ${root} /proc/cpuinfo" ; then echo uml fi # Check for IBM PowerVM Lx86 Linux/x86 emulator. if have_cpuinfo && 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 have_cpuinfo && 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.*KVM/Linux' " ${root} /proc/sysinfo" ; then echo ibm_systemz-kvm elif 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 oVirt/RHEV. if echo " $dmi " | grep -q 'Manufacturer: oVirt' ; then echo ovirt fi if echo " $dmi " | grep -q 'Product Name: RHEV Hypervisor' ; then echo rhev fi # Check for Xen. if [ " $cpuid " = "XenVMMXenVMM" ] && ! echo " $dmi " | grep -q 'No SMBIOS nor DMI entry point found, sorry' ; 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 skip_lkvm = 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 " = "arm" ] || [ " $arch " = "aarch64" ] ; then if [ -d " ${root} /proc/device-tree/hypervisor" ] && grep -q "xen" " ${root} /proc/device-tree/hypervisor/compatible" ; then echo xen skip_qemu_kvm = true skip_lkvm = true fi 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 elif [ " $cpuid " = "TCGTCGTCGTCG" ] ; then echo qemu skip_lkvm = true elif echo " $dmi " | grep -q 'Product Name: KVM' ; then echo kvm skip_lkvm = true elif echo " $dmi " | grep -q 'Manufacturer: QEMU' ; then # The test for KVM above failed, so now we know we're # not using KVM acceleration. echo qemu skip_lkvm = true elif [ " $arch " = "arm" ] || [ " $arch " = "aarch64" ] ; then if [ -d " ${root} /proc/device-tree" ] && ls " ${root} /proc/device-tree" | grep -q "fw-cfg" ; then # We don't have enough information to determine if we're # using KVM acceleration or not. echo qemu skip_lkvm = true fi elif [ -d ${root} / proc / device-tree / hypervisor ] && grep -q "linux,kvm" / proc / device-tree / hypervisor / compatible; then # We are running as a spapr KVM guest on ppc64 echo kvm skip_lkvm = true elif use_sysctl; then # SmartOS KVM product =$ ( sysctl -n hw.product ) if echo " $product " | grep -q 'SmartDC HVM' ; then echo kvm fi else # This is known to fail for qemu with the explicit -cpu # option, since /proc/cpuinfo will not contain the QEMU # string. QEMU 2.10 added a new CPUID leaf, so this # problem only triggered for older QEMU if have_cpuinfo && grep -q 'QEMU' " ${root} /proc/cpuinfo" ; then echo qemu fi fi fi if ! " $skip_lkvm " ; then if [ " $cpuid " = "LKVMLKVMLKVM" ] ; then echo lkvm elif [ " $arch " = "arm" ] || [ " $arch " = "aarch64" ] ; then if [ -d " ${root} /proc/device-tree" ] && grep -q "dummy-virt" " ${root} /proc/device-tree/compatible" ; then echo lkvm fi fi fi # Check for Docker. if [ -f " ${root} /.dockerinit" ] ; then echo docker fi # Check ppc64 lpar, kvm or powerkvm # example /proc/cpuinfo line indicating 'not baremetal' # platform : pSeries # # example /proc/ppc64/lparcfg systemtype line # system_type=IBM pSeries (emulated by qemu) if [ " $arch " = "ppc64" ] || [ " $arch " = "ppc64le" ] ; then if have_cpuinfo && grep -q 'platform.**pSeries' " ${root} /proc/cpuinfo" ; then if grep -q 'model.*emulated by qemu' " ${root} /proc/cpuinfo" ; then echo ibm_power-kvm else # Assume LPAR, now detect shared or dedicated if grep -q 'shared_processor_mode=1' " ${root} /proc/ppc64/lparcfg" ; then echo ibm_power-lpar_shared else echo ibm_power-lpar_dedicated fi # detect powerkvm? fi fi fi # Check for OpenBSD/VMM if [ " $cpuid " = "OpenBSDVMM58" ] ; then echo vmm fi # Check for LDoms if [ " ${arch#sparc} " ! = " $arch " ] && [ -e " ${root} /dev/mdesc" ] ; then echo ldoms if [ -d " ${root} /sys/class/vlds/ctrl" ] && \ [ -d " ${root} /sys/class/vlds/sp" ] ; then echo ldoms-control else echo ldoms-guest fi MDPROP = " ${root} /usr/lib/ldoms/mdprop.py" if [ -x " ${MDPROP} " ] ; then if [ -n " $($MDPROP -v iodevice device-type=pciex) " ] ; then echo ldoms-root echo ldoms-io elif [ -n " $($MDPROP -v iov-device vf-id=0) " ] ; then echo ldoms-io fi fi fi # Check for AWS. # AWS on Xen. if echo " $dmi " | grep -q 'Version: [0-9]\.[0-9]\.amazon' ; then echo aws # AWS on baremetal or KVM. elif echo " $dmi " | grep -q 'Vendor: Amazon EC2' ; then echo aws fi