454 lines
14 KiB
Bash
Executable File
454 lines
14 KiB
Bash
Executable File
#!/bin/sh -
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# virt-what. Generated from virt-what.in by configure.
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# Copyright (C) 2008-2022 Red Hat Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# 'virt-what' tries to detect the type of virtualization being
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# used (or none at all if we're running on bare-metal). It prints
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# out one or more lines each being a 'fact' about the virtualization.
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#
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# Please see also the manual page virt-what(1).
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# This script should be run as root.
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#
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# The following resources were useful in writing this script:
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# . http://dmo.ca/blog/detecting-virtualization-on-linux/
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# Do not allow unset variables, and set defaults.
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set -u
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root=''
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skip_qemu_kvm=false
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skip_lkvm=false
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VERSION="1.25"
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have_cpuinfo () {
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test -e "${root}/proc/cpuinfo"
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}
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use_sysctl() {
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# Lacking /proc, on some systems sysctl can be used instead.
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OS=$(uname) || fail "failed to get operating system name"
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[ "$OS" = "OpenBSD" ]
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}
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fail () {
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echo "virt-what: $1" >&2
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exit 1
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}
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usage () {
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echo "virt-what [options]"
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echo "Options:"
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echo " --help Display this help"
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echo " --version Display version and exit"
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exit 0
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}
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# Handle the command line arguments, if any.
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while test $# -gt 0; do
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case "$1" in
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--help) usage ;;
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--test-root=*)
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# Deliberately undocumented: used for 'make check'.
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root=$(echo "$1" | sed 's/.*=//')
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shift 1
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test -z "$root" && fail "--test-root option requires a value"
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;;
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-v|--version) echo "$VERSION"; exit 0 ;;
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--) shift; break ;;
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*) fail "unrecognized option '$1'";;
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esac
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done
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test $# -gt 0 && fail "extra operand '$1'"
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# Add /sbin and /usr/sbin to the path so we can find system
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# binaries like dmidecode.
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# Add /usr/libexec to the path so we can find the helper binary.
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prefix=/usr
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exec_prefix=${prefix}
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PATH="${root}${exec_prefix}/libexec:${root}/sbin:${root}/usr/sbin:${PATH}"
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export PATH
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# Check we're running as root.
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EFFUID=$(id -u) || fail "failed to get current user id"
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if [ "x$root" = "x" ] && [ "$EFFUID" -ne 0 ]; then
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fail "this script must be run as root"
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fi
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# Try to locate the CPU-ID helper program
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CPUID_HELPER=$(which virt-what-cpuid-helper 2>/dev/null)
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if [ -z "$CPUID_HELPER" ] ; then
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fail "virt-what-cpuid-helper program not found in \$PATH"
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fi
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# Many fullvirt hypervisors give an indication through CPUID. Use the
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# helper program to get this information.
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cpuid=$(virt-what-cpuid-helper)
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# Check for various products in the BIOS information.
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# Note that dmidecode doesn't exist on all architectures. On the ones
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# it does not, then this will return an error, which is ignored (error
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# message redirected into the $dmi variable).
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dmi=$(LANG=C dmidecode 2>&1)
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# Architecture.
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# Note for the purpose of testing, we only call uname with -m option.
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arch=$(uname -m | sed -e 's/i.86/i386/' | sed -e 's/arm.*/arm/')
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# Check for Alibaba Cloud
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if echo "$dmi" | grep -q 'Manufacturer: Alibaba'; then
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# Check for Alibaba Cloud ECS Bare Metal (EBM) Instance
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if [ "x$root" = "x" ] && ( { echo -e "GET /latest/meta-datainstance/instance-type HTTP/1.0\r\nHost: 100.100.100.200\r\n\r" >&3; grep -sq 'ebm' <&3 ; } 3<> /dev/tcp/100.100.100.200/80 ) 2>/dev/null ; then
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echo "alibaba_cloud-ebm"
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else
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echo "alibaba_cloud"
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fi
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fi
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# Check for VMware.
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# cpuid check added by Chetan Loke.
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if [ "$cpuid" = "VMwareVMware" ]; then
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echo vmware
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elif echo "$dmi" | grep -q 'Manufacturer: VMware'; then
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echo vmware
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fi
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# Check for Hyper-V.
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# http://blogs.msdn.com/b/sqlosteam/archive/2010/10/30/is-this-real-the-metaphysics-of-hardware-virtualization.aspx
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if [ "$cpuid" = "Microsoft Hv" ]; then
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echo hyperv
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fi
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# Check for VirtualPC.
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# The negative check for cpuid is to distinguish this from Hyper-V
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# which also has the same manufacturer string in the SM-BIOS data.
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if [ "$cpuid" != "Microsoft Hv" ] &&
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echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation' &&
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echo "$dmi" | grep -q 'Product Name: Virtual Machine'; then
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echo virtualpc
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fi
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# Check for VirtualBox.
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# Added by Laurent Léonard.
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if echo "$dmi" | grep -q 'Manufacturer: innotek GmbH'; then
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echo virtualbox
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fi
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# Check for bhyve.
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if [ "$cpuid" = "bhyve bhyve " ]; then
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echo bhyve
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elif echo "$dmi" | grep -q "Vendor: BHYVE"; then
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echo bhyve
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fi
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# Check for OpenVZ / Virtuozzo.
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# Added by Evgeniy Sokolov.
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# /proc/vz - always exists if OpenVZ kernel is running (inside and outside
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# container)
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# /proc/bc - exists on node, but not inside container.
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if [ -d "${root}/proc/vz" -a ! -d "${root}/proc/bc" ]; then
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echo openvz
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fi
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# Check for LXC containers
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# http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface
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# Added by Marc Fournier
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if [ -e "${root}/proc/1/environ" ] &&
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cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container=lxc'; then
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echo lxc
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fi
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if [ -e "${root}/proc/1/environ" ] &&
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tr '\0' '\n' < "${root}/proc/1/environ" | grep -q '^container=zone$' &&
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[ -e "${root}/proc/version" ] &&
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grep -q 'BrandZ virtual linux' < "${root}/proc/version"; then
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echo illumos-lx
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fi
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# Check for Linux-VServer
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if test -e "${root}/proc/self/status" \
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&& cat "${root}/proc/self/status" | grep -q "VxID: [0-9]*"; then
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echo linux_vserver
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if grep -q "VxID: 0$" "${root}/proc/self/status"; then
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echo linux_vserver-host
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else
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echo linux_vserver-guest
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fi
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fi
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# Check for UML.
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# Added by Laurent Léonard.
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if have_cpuinfo && grep -q 'UML' "${root}/proc/cpuinfo"; then
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echo uml
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fi
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# Check for IBM PowerVM Lx86 Linux/x86 emulator.
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if have_cpuinfo && grep -q '^vendor_id.*PowerVM Lx86' "${root}/proc/cpuinfo"
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then
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echo powervm_lx86
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fi
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# Check for Hitachi Virtualization Manager (HVM) Virtage logical partitioning.
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if echo "$dmi" | grep -q 'Manufacturer.*HITACHI' &&
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echo "$dmi" | grep -q 'Product.* LPAR'; then
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echo virtage
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fi
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# Check for IBM SystemZ.
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if have_cpuinfo && grep -q '^vendor_id.*IBM/S390' "${root}/proc/cpuinfo"; then
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echo ibm_systemz
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if [ -f "${root}/proc/sysinfo" ]; then
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if grep -q 'VM.*Control Program.*KVM/Linux' "${root}/proc/sysinfo"; then
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echo ibm_systemz-kvm
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elif grep -q 'VM.*Control Program.*z/VM' "${root}/proc/sysinfo"; then
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echo ibm_systemz-zvm
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elif grep -q '^LPAR' "${root}/proc/sysinfo"; then
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echo ibm_systemz-lpar
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else
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# This is unlikely to be correct.
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echo ibm_systemz-direct
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fi
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fi
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fi
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# Check for Parallels.
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if echo "$dmi" | grep -q 'Vendor: Parallels'; then
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echo parallels
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skip_qemu_kvm=true
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fi
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# Check for Nutanix AHV.
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if echo "$dmi" | grep -q 'Manufacturer: Nutanix'; then
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echo nutanix_ahv
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fi
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# Check for oVirt/RHEV.
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if echo "$dmi" | grep -q 'Manufacturer: oVirt'; then
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echo ovirt
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fi
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if echo "$dmi" | grep -q 'Product Name: RHEV Hypervisor'; then
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echo rhev
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fi
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# Google Cloud
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if echo "$dmi" | grep -q 'Product Name: Google Compute Engine'; then
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echo google_cloud
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fi
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# Red Hat's hypervisor.
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if echo "$dmi" | grep -q 'Manufacturer: Red Hat'; then
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echo redhat
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fi
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# Check for Xen.
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if [ "$cpuid" = "XenVMMXenVMM" ] &&
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! echo "$dmi" | grep -q 'No SMBIOS nor DMI entry point found, sorry'; then
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echo xen; echo xen-hvm
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skip_qemu_kvm=true
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elif [ -d "${root}/proc/xen" ]; then
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echo xen
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if grep -q "control_d" "${root}/proc/xen/capabilities" 2>/dev/null; then
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echo xen-dom0
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else
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echo xen-domU
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fi
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skip_qemu_kvm=true
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skip_lkvm=true
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elif [ -f "${root}/sys/hypervisor/type" ] &&
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grep -q "xen" "${root}/sys/hypervisor/type"; then
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# Ordinary kernel with pv_ops. There does not seem to be
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# enough information at present to tell whether this is dom0
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# or domU. XXX
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echo xen
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elif [ "$arch" = "arm" ] || [ "$arch" = "aarch64" ]; then
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if [ -d "${root}/proc/device-tree/hypervisor" ] &&
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grep -q "xen" "${root}/proc/device-tree/hypervisor/compatible"; then
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echo xen
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skip_qemu_kvm=true
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skip_lkvm=true
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elif [ -d "${root}/proc/device-tree/hypervisor" ] &&
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grep -q "vmware" "${root}/proc/device-tree/hypervisor/compatible"; then
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echo vmware
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skip_lkvm=true
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fi
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elif [ "$arch" = "ia64" ]; then
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if [ -d "${root}/sys/bus/xen" -a ! -d "${root}/sys/bus/xen-backend" ]; then
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# PV-on-HVM drivers installed in a Xen guest.
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echo xen
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echo xen-hvm
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else
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# There is no virt leaf on IA64 HVM. This is a last-ditch
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# attempt to detect something is virtualized by using a
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# timing attack.
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virt-what-ia64-xen-rdtsc-test > /dev/null 2>&1
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case "$?" in
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0) ;; # not virtual
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1) # Could be some sort of virt, or could just be a bit slow.
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echo virt
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esac
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fi
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fi
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# Check for QEMU/KVM.
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#
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# Parallels exports KVMKVMKVM leaf, so skip this test if we've already
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# seen that it's Parallels. Xen uses QEMU as the device model, so
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# skip this test if we know it is Xen.
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if ! "$skip_qemu_kvm"; then
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if [ "$cpuid" = "KVMKVMKVM" ]; then
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echo kvm
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elif [ "$cpuid" = "TCGTCGTCGTCG" ]; then
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echo qemu
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skip_lkvm=true
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elif echo "$dmi" | grep -q 'Product Name: KVM'; then
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echo kvm
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skip_lkvm=true
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elif echo "$dmi" | grep -q 'Manufacturer: KVM'; then
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echo kvm
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skip_lkvm=true
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elif echo "$dmi" | grep -q 'Manufacturer: Amazon EC2' &&
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echo "$dmi" | grep -q 'System is a virtual machine'; then
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# This is for AWS Graviton (Arm) systems which don't have CPUID.
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echo kvm
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skip_lkvm=true
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elif echo "$dmi" | grep -q 'Manufacturer: QEMU'; then
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# The test for KVM above failed, so now we know we're
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# not using KVM acceleration.
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echo qemu
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skip_lkvm=true
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elif [ "$arch" = "arm" ] || [ "$arch" = "aarch64" ]; then
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if [ -d "${root}/proc/device-tree" ] &&
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ls "${root}/proc/device-tree" | grep -q "fw-cfg"; then
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# We don't have enough information to determine if we're
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# using KVM acceleration or not.
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echo qemu
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skip_lkvm=true
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fi
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elif [ -d ${root}/proc/device-tree/hypervisor ] &&
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grep -q "linux,kvm" /proc/device-tree/hypervisor/compatible; then
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# We are running as a spapr KVM guest on ppc64
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echo kvm
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skip_lkvm=true
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elif use_sysctl; then
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# SmartOS KVM
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product=$(sysctl -n hw.product)
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if echo "$product" | grep -q 'SmartDC HVM'; then
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echo kvm
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fi
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else
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# This is known to fail for qemu with the explicit -cpu
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# option, since /proc/cpuinfo will not contain the QEMU
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# string. QEMU 2.10 added a new CPUID leaf, so this
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# problem only triggered for older QEMU
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if have_cpuinfo && grep -q 'QEMU' "${root}/proc/cpuinfo"; then
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echo qemu
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fi
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fi
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fi
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if ! "$skip_lkvm"; then
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if [ "$cpuid" = "LKVMLKVMLKVM" ]; then
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echo lkvm
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elif [ "$arch" = "arm" ] || [ "$arch" = "aarch64" ]; then
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if [ -d "${root}/proc/device-tree" ] &&
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grep -q "dummy-virt" "${root}/proc/device-tree/compatible"; then
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echo lkvm
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fi
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fi
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fi
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# Check for Docker.
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if [ -f "${root}/.dockerenv" ] || [ -f "${root}/.dockerinit" ] || \
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grep -qF /docker/ "${root}/proc/self/cgroup" 2>/dev/null; then
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echo docker
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fi
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# Check for Podman.
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if [ -e "${root}/proc/1/environ" ] &&
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cat "${root}/proc/1/environ" | tr '\000' '\n' | grep -Eiq '^container=podman'; then
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echo podman
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elif grep -qF /libpod- "${root}/proc/self/cgroup" 2>/dev/null; then
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echo podman
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fi
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# Check ppc64 lpar, kvm or powerkvm
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# example /proc/cpuinfo line indicating 'not baremetal'
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# platform : pSeries
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#
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# example /proc/ppc64/lparcfg systemtype line
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# system_type=IBM pSeries (emulated by qemu)
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if [ "$arch" = "ppc64" ] || [ "$arch" = "ppc64le" ] ; then
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if have_cpuinfo && grep -q 'platform.**pSeries' "${root}/proc/cpuinfo"; then
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if grep -q 'model.*emulated by qemu' "${root}/proc/cpuinfo"; then
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echo ibm_power-kvm
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else
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# Assume LPAR, now detect shared or dedicated
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if grep -q 'shared_processor_mode=1' "${root}/proc/ppc64/lparcfg"; then
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echo ibm_power-lpar_shared
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else
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echo ibm_power-lpar_dedicated
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fi
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# detect powerkvm?
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fi
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fi
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fi
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# Check for OpenBSD/VMM
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if [ "$cpuid" = "OpenBSDVMM58" ]; then
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echo vmm
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fi
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# Check for LDoms
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if [ "${arch#sparc}" != "$arch" ] && [ -e "${root}/dev/mdesc" ]; then
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echo ldoms
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if [ -d "${root}/sys/class/vlds/ctrl" ] && \
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[ -d "${root}/sys/class/vlds/sp" ]; then
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echo ldoms-control
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else
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echo ldoms-guest
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fi
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MDPROP="${root}/usr/lib/ldoms/mdprop.py"
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if [ -x "${MDPROP}" ]; then
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if [ -n "$($MDPROP -v iodevice device-type=pciex)" ]; then
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echo ldoms-root
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echo ldoms-io
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elif [ -n "$($MDPROP -v iov-device vf-id=0)" ]; then
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echo ldoms-io
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fi
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fi
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fi
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# Check for AWS.
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# AWS on Xen.
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if echo "$dmi" | grep -Eq 'Version: [0-9]+\.[0-9]+\.amazon'; then
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echo aws
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# AWS on baremetal or KVM.
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elif echo "$dmi" | grep -q 'Vendor: Amazon EC2'; then
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echo aws
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fi
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