X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=virt-what.in;h=761fc1bb0a185f4afc2b78ee61c691f8b18c3070;hb=73f639241174bde5066838ed67e959ef047da144;hp=a27be106de3ca56cf9862597a8ec870bb328f090;hpb=441ce9d9ecf9edf0f325c280451ba69dc160882e;p=virt-what.git diff --git a/virt-what.in b/virt-what.in index a27be10..761fc1b 100644 --- a/virt-what.in +++ b/virt-what.in @@ -1,6 +1,6 @@ -#!/bin/bash - +#!/bin/sh - # @configure_input@ -# Copyright (C) 2008-2011 Red Hat Inc. +# Copyright (C) 2008-2015 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 +18,32 @@ # '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" +} + +fail () { + echo "virt-what: $1" >&2 exit 1 } -function usage { +usage () { echo "virt-what [options]" echo "Options:" echo " --help Display this help" @@ -42,50 +52,58 @@ function usage { } # Handle the command line arguments, if any. - -TEMP=`getopt -o v --long help --long version --long test-root: -n 'virt-what' -- "$@"` -if [ $? != 0 ]; then exit 1; fi -eval set -- "$TEMP" - -while true; do +while test $# -gt 0; do case "$1" in - --help) usage ;; - --test-root) + --help) usage ;; + --test-root=*) # Deliberately undocumented: used for 'make check'. - root="$2" - shift 2 + root=$(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 "internal error ($1)" ;; + -v|--version) echo "$VERSION"; exit 0 ;; + --) shift; break ;; + *) fail "unrecognized option '$1'";; esac done +test $# -gt 0 && fail "extra operand '$1'" # Add /sbin and /usr/sbin to the path so we can find system -# binaries like dmicode. +# binaries like dmidecode. # Add /usr/libexec to the path so we can find the helper binary. prefix=@prefix@ exec_prefix=@exec_prefix@ -PATH=$root@libexecdir@:$root/sbin:$root/usr/sbin:$PATH +PATH="${root}@libexecdir@:${root}/sbin:${root}/usr/sbin:${PATH}" # Check we're running as root. +EFFUID=$(id -u) || fail "failed to get current user id" -uid=`id -u` -if [ "$uid" != 0 ]; then +if [ "x$root" = "x" ] && [ "$EFFUID" -ne 0 ]; then fail "this script must be run as root" fi +# Try to locate the CPU-ID helper program +CPUID_HELPER=$(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 non-PC architectures. On these, -# this will return an error which is ignored (error message redirected -# into $dmi variable). +# 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 -p option. -dmi=`LANG=C dmidecode 2>&1` +arch=$(uname -p | sed -e 's/i.86/i386/' | sed -e 's/arm.*/arm/') # Check for VMware. # cpuid check added by Chetan Loke. @@ -122,39 +140,55 @@ fi # container) # /proc/bc - exists on node, but not inside container. -if [ -d $root/proc/vz -a ! -d $root/proc/bc ]; then +if [ -d "${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" ] && + cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container='; then + echo lxc +fi + # Check for Linux-VServer -if cat $root/proc/self/status | grep -q "VxID: [0-9]*"; then +if test -e "${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' $root/proc/cpuinfo; then +if have_cpuinfo && grep -q 'UML' "${root}/proc/cpuinfo"; then echo uml fi # Check for IBM PowerVM Lx86 Linux/x86 emulator. -if grep -q '^vendor_id.*PowerVM Lx86' $root/proc/cpuinfo; then +if have_cpuinfo && grep -q '^vendor_id.*PowerVM Lx86' "${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.*HVM LPAR'; then + echo "$dmi" | grep -q 'Product.* LPAR'; then echo virtage fi # Check for IBM SystemZ. -if grep -q '^vendor_id.*IBM/S390' $root/proc/cpuinfo; then +if have_cpuinfo && grep -q '^vendor_id.*IBM/S390' "${root}/proc/cpuinfo"; then echo ibm_systemz - if [ -f $root/proc/sysinfo ]; then - if grep -q 'VM.*Control Program.*z/VM' $root/proc/sysinfo; then + if [ -f "${root}/proc/sysinfo" ]; then + if grep -q 'VM.*Control Program.*z/VM' "${root}/proc/sysinfo"; then echo ibm_systemz-zvm - elif grep -q '^LPAR' $root/proc/sysinfo; then + elif grep -q '^LPAR' "${root}/proc/sysinfo"; then echo ibm_systemz-lpar else # This is unlikely to be correct. @@ -166,28 +200,60 @@ fi # Check for Parallels. if echo "$dmi" | grep -q 'Vendor: Parallels'; then echo parallels - skip_qemu_kvm=1 + skip_qemu_kvm=true +fi + +# Check for oVirt/RHEV. +if echo "$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 echo xen; echo xen-hvm - skip_qemu_kvm=1 -elif [ -f $root/proc/xen/capabilities ]; then + skip_qemu_kvm=true +elif [ -d "${root}/proc/xen" ]; then echo xen - if grep -q "control_d" $root/proc/xen/capabilities; then + if grep -q "control_d" "${root}/proc/xen/capabilities" 2>/dev/null; then echo xen-dom0 else echo xen-domU fi - skip_qemu_kvm=1 -elif [ -f $root/sys/hypervisor/type ] && - grep -q "xen" $root/sys/hypervisor/type; then + skip_qemu_kvm=true + skip_lkvm=true +elif [ -f "${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 "$?" in + 0) ;; # not virtual + 1) # Could be some sort of virt, or could just be a bit slow. + echo virt + esac + fi fi # Check for QEMU/KVM. @@ -196,16 +262,72 @@ fi # seen that it's Parallels. Xen uses QEMU as the device model, so # skip this test if we know it is Xen. -if [ ! "$skip_qemu_kvm" ]; then +if ! "$skip_qemu_kvm"; then if [ "$cpuid" = "KVMKVMKVM" ]; then - echo kvm + echo kvm + 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 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' $root/proc/cpuinfo; then - echo qemu - fi + if grep -q 'QEMU' "${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" ]; 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