X-Git-Url: http://git.annexia.org/?p=virt-what.git;a=blobdiff_plain;f=virt-what.in;h=d52171c02d6c07dae6f360aa1508ea0009c456a4;hp=cc61aaee4a586f19a7a2c1193ccad34ac443736e;hb=1df728aa4b1d2814265f9c86494f7d55ee0cf9af;hpb=b8957a6bd16be4c6c2c2893d621ed84bf21d0f72 diff --git a/virt-what.in b/virt-what.in index cc61aae..d52171c 100644 --- a/virt-what.in +++ b/virt-what.in @@ -1,6 +1,6 @@ -#!/bin/bash - +#!/bin/sh - # @configure_input@ -# Copyright (C) 2008-2009 Red Hat Inc. +# Copyright (C) 2008-2019 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 @@ -18,22 +18,39 @@ # '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: $1" >&2 exit 1 } -function usage { +usage () { echo "virt-what [options]" echo "Options:" echo " --help Display this help" @@ -42,85 +59,359 @@ function usage { } # Handle the command line arguments, if any. - -TEMP=`getopt -o v --long help --long version -n 'virt-what' -- "$@"` -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" ] && [ "$EFFUID" -ne 0 ]; then fail "this script must be run as root" fi -PATH=/sbin:/usr/sbin:$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) # 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) -dmi=`dmidecode 2>&1` +# Architecture. +# Note for the purpose of testing, we only call uname with -m option. -if echo "$dmi" | grep -q 'Manufacturer: VMware'; then +arch=$(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 -if echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation'; then +# Check for Hyper-V. +# http://blogs.msdn.com/b/sqlosteam/archive/2010/10/30/is-this-real-the-metaphysics-of-hardware-virtualization.aspx +if [ "$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' && + echo "$dmi" | grep -q 'Product Name: Virtual Machine'; then echo virtualpc fi +# Check for VirtualBox. +# Added by Laurent Léonard. +if echo "$dmi" | grep -q 'Manufacturer: innotek GmbH'; then + echo virtualbox +fi + +# Check for 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 -# To tell if it is Xen and KVM HVM (fully virtualized) we can use this -# helper C program. +# 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=lxc'; 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 Léonard. +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 -cpuid=`virt-what-cpuid-helper` +# Check for Nutanix AHV. +# This is sufficiently different from KVM and has Viridian extensions, +# so skip the KVM test. +if echo "$dmi" | grep -q 'Manufacturer: Nutanix'; then + echo nutanix_ahv + skip_qemu_kvm=true +fi + +# Check for oVirt/RHEV. +if echo "$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" ]; 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/privcmd ]; then - echo xen; echo xen-dom0 - is_xen=1 -elif [ -f /proc/xen/capabilities ]; then - echo xen; echo xen-domU - 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 +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 [ ! "$is_xen" ]; then - # Disable this test if we know this is Xen already, because Xen - # uses QEMU for its device model. +if ! "$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: 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" "${root}/proc/device-tree/compatible"; then + echo lkvm + fi fi fi + +# Check for Docker. +if [ -f "${root}/.dockerenv" ] || [ -f "${root}/.dockerinit" ] || \ + grep -qF /docker/ "${root}/proc/self/cgroup" 2>/dev/null; then + echo docker +fi + +# Check for 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- "${root}/proc/self/cgroup" 2>/dev/null; then + echo podman +fi + +# Check ppc64 lpar, kvm or powerkvm + +# example /proc/cpuinfo line indicating 'not baremetal' +# platform : pSeries +# +# example /proc/ppc64/lparcfg systemtype line +# system_type=IBM pSeries (emulated by qemu) + +if [ "$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