-#!/bin/bash -
+#!/bin/sh -
# @configure_input@
-# Copyright (C) 2008-2010 Red Hat Inc.
+# Copyright (C) 2008-2022 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
# '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 of more lines each being a 'fact' about the virtualization.
+# 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://www.dmo.ca/blog/20080530151107
+# . 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="@VERSION@"
-function fail {
- echo "virt-what: $1"
+have_cpuinfo () {
+ test -e "${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: $1" >&2
exit 1
}
-function usage {
+usage () {
echo "virt-what [options]"
echo "Options:"
echo " --help Display this help"
}
# Handle the command line arguments, if any.
-
-TEMP=`getopt -o v --long help --long version -n 'virt-what' -- "$@"`
-if [ $? != 0 ]; then exit 1; fi
-eval set -- "$TEMP"
-
-while true; do
+while test $# -gt 0; do
case "$1" in
- --help) usage ;;
- -v|--version) echo $VERSION; exit 0 ;;
- --) shift; break ;;
- *) fail "internal error" ;;
+ --help) usage ;;
+ --test-root=*)
+ # Deliberately undocumented: used for 'make check'.
+ root=$(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 '$1'"
+
+# Add /sbin and /usr/sbin to the path so we can find system
+# binaries like dmidecode.
+# Add /usr/libexec to the path so we can find the helper binary.
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+PATH="${root}@libexecdir@:${root}/sbin:${root}/usr/sbin:${PATH}"
+export PATH
# Check we're running as root.
+EFFUID=$(id -u) || fail "failed to get current user id"
-uid=`id -u`
-if [ "$uid" != 0 ]; then
+if [ "x$root" = "x" ] && [ "$EFFUID" -ne 0 ]; then
fail "this script must be run as root"
fi
-# Add /sbin and /usr/sbin to the path so we can find system
-# binaries like dmicode.
-# Add /usr/libexec to the path so we can find the helper binary.
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-PATH=@libexecdir@:/sbin:/usr/sbin:$PATH
+# 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`
+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.
-dmi=`dmidecode 2>&1`
+arch=$(uname -m | sed -e 's/i.86/i386/' | sed -e 's/arm.*/arm/')
+
+# Check for Alibaba Cloud
+if echo "$dmi" | grep -q 'Manufacturer: Alibaba'; then
+ # Check for Alibaba Cloud ECS Bare Metal (EBM) Instance
+ if [ "x$root" = "x" ] && ( { echo -e "GET /latest/meta-datainstance/instance-type HTTP/1.0\r\nHost: 100.100.100.200\r\n\r" >&3; grep -sq 'ebm' <&3 ; } 3<> /dev/tcp/100.100.100.200/80 ) 2>/dev/null ; then
+ echo "alibaba_cloud-ebm"
+ else
+ echo "alibaba_cloud"
+ fi
+fi
# Check for VMware.
# cpuid check added by Chetan Loke.
fi
# Check for VirtualPC.
-
-if echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation'; then
+# 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' &&
+ echo "$dmi" | grep -q 'Product Name: Virtual Machine'; then
echo virtualpc
fi
echo virtualbox
fi
+# Check for bhyve.
+if [ "$cpuid" = "bhyve bhyve " ]; then
+ echo bhyve
+elif echo "$dmi" | grep -q "Vendor: BHYVE"; then
+ echo bhyve
+fi
+
# Check for OpenVZ / Virtuozzo.
# Added by Evgeniy Sokolov.
# /proc/vz - always exists if OpenVZ kernel is running (inside and outside
# container)
# /proc/bc - exists on node, but not inside container.
-
-if [ -d /proc/vz -a ! -d /proc/bc ]; then
+if [ -d "${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" ] &&
+ tr '\000' '\n' < "${root}/proc/1/environ" |
+ grep -Eiq '^container=lxc'; then
+ echo lxc
+fi
+
+# Check for Illumos LX
+if [ -e "${root}/proc/1/environ" ] &&
+ tr '\0' '\n' < "${root}/proc/1/environ" | grep -q '^container=zone$' &&
+ [ -e "${root}/proc/version" ] &&
+ grep -q 'BrandZ virtual linux' < "${root}/proc/version"; then
+ echo illumos-lx
+fi
+
+# Check for Docker.
+if [ -f "${root}/.dockerenv" ] || [ -f "${root}/.dockerinit" ] || \
+ grep -qF /docker/ "${root}/proc/self/cgroup" 2>/dev/null; then
+ echo docker
+fi
+
+# Check for OCI.
+if [ -e "${root}/proc/1/environ" ] &&
+ cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container=oci'; then
+ echo oci
+fi
+
+# Check for CRI-O.
+if [ -e "${root}/proc/1/environ" ] &&
+ cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container=crio'; then
+ echo crio
+fi
+
+# Check for Podman.
+if [ -e "${root}/proc/1/environ" ] &&
+ cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container=podman'; then
+ echo podman
+elif grep -qF /libpod- "${root}/proc/self/cgroup" 2>/dev/null; then
+ echo podman
+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 Léonard.
-if grep -q 'UML' /proc/cpuinfo; then
+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 Nutanix AHV.
+if echo "$dmi" | grep -q 'Manufacturer: Nutanix' &&
+ echo "$dmi" | grep -q 'Product Name: AHV'; then
+ echo nutanix_ahv
+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
+
+# Google Cloud
+if echo "$dmi" | grep -q 'Product Name: Google Compute Engine'; then
+ echo google_cloud
+fi
+
+# Red Hat's hypervisor.
+if echo "$dmi" | grep -q 'Manufacturer: Red Hat'; then
+ echo redhat
+fi
+
# Check for Xen.
-if [ "$cpuid" = "XenVMMXenVMM" ]; then
+if [ "$cpuid" = "XenVMMXenVMM" ] &&
+ ! echo "$dmi" | grep -q 'No SMBIOS nor DMI entry point found, sorry'; then
echo xen; echo xen-hvm
- is_xen=1
-elif [ -f /proc/xen/capabilities ]; then
+ skip_qemu_kvm=true
+elif [ -d "${root}/proc/xen" ]; then
echo xen
- if grep -q "control_d" /proc/xen/capabilities; then
+ if grep -q "control_d" "${root}/proc/xen/capabilities" 2>/dev/null; then
echo xen-dom0
else
echo xen-domU
fi
- is_xen=1
-elif [ -d /proc/xen ]; then
- # This directory can be present when Xen paravirt drivers are
- # installed, even on baremetal. Don't confuse people by
- # printing anything.
- :
+ skip_qemu_kvm=true
+ skip_lkvm=true
+elif [ -f "${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" "${root}/proc/device-tree/hypervisor/compatible"; then
+ echo xen
+ skip_qemu_kvm=true
+ skip_lkvm=true
+ elif [ -d "${root}/proc/device-tree/hypervisor" ] &&
+ grep -q "vmware" "${root}/proc/device-tree/hypervisor/compatible"; then
+ echo vmware
+ skip_lkvm=true
+ fi
+elif [ "$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 "$?" in
+ 0) ;; # not virtual
+ 1) # Could be some sort of virt, or could just be a bit slow.
+ echo virt
+ esac
+ fi
fi
# Check for QEMU/KVM.
+#
+# Parallels exports KVMKVMKVM leaf, so skip this test if we've already
+# seen that it's Parallels. Xen uses QEMU as the device model, so
+# skip this test if we know it is Xen.
-if [ ! "$is_xen" ]; then
- # Disable this test if we know this is Xen already, because Xen
- # uses QEMU for its device model.
+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 "$dmi" | grep -q 'Manufacturer: KVM'; then
+ echo kvm
+ skip_lkvm=true
+ elif echo "$dmi" | grep -q 'Manufacturer: Amazon EC2' &&
+ echo "$dmi" | grep -q 'System is a virtual machine'; then
+ # This is for AWS Graviton (Arm) systems which don't have CPUID.
+ echo kvm
+ skip_lkvm=true
+ elif echo "$dmi" | grep -q 'Manufacturer: Alibaba Cloud' &&
+ echo "$dmi" | grep -q 'System is a virtual machine'; then
+ # This is for Alibaba Arm systems which don't have CPUID.
+ echo kvm
+ skip_lkvm=true
+ elif echo "$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 grep -q 'QEMU' /proc/cpuinfo; then
- if [ "$cpuid" = "KVMKVMKVM" ]; then
- echo kvm
- else
- echo qemu
- fi
+if ! "$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" "${root}/proc/device-tree/compatible"; then
+ echo lkvm
+ fi
fi
fi
+
+# Check ppc64 lpar, kvm or powerkvm
+
+# example /proc/cpuinfo line indicating 'not baremetal'
+# platform : pSeries
+#
+# example /proc/ppc64/lparcfg systemtype line
+# system_type=IBM pSeries (emulated by qemu)
+
+if [ "$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 "$dmi" | grep -Eq 'Version: [0-9]+\.[0-9]+\.amazon'; then
+ echo aws
+# AWS on baremetal or KVM.
+elif echo "$dmi" | grep -q 'Vendor: Amazon EC2'; then
+ echo aws
+fi
+
+# UpCloud
+if echo "$dmi" | grep -q 'Manufacturer: UpCloud'; then
+ echo upcloud
+fi
git.annexia.org / virt-what.git / blobdiff