Brief discussion thread - http://lkml.org/lkml/2010/6/29/355 Added VMware detection via cpuid.Mimic'd VMware's balloon driver's init-time check(cpuid followed by dmi-checks). Moved the existing logic into a simple function to achieve that. Tested virt-what.in(ran as a script) and virt-what-cpuid-helper within a Linux guest on ESX. Thanks. Signed-off-by: Chetan Loke <loke.c@xxxxxxxxxxxxxx> --- virt-what.in | 150 ++++++++++++++++++++++++++++++++++++----------------------- 1 file changed, 93 insertions(+), 57 deletions(-) --- virt-what.in.orig 2010-06-29 18:42:20.166647585 -0400 +++ virt-what.in 2010-06-29 18:59:54.765647739 -0400 @@ -25,9 +25,19 @@ # # The following resources were useful in writing this script: # . http://www.dmo.ca/blog/20080530151107 +# +# +# Added VMware detection using cpuid. +# Added functions to check the environment type +# 06/29/2010 - Chetan Loke <loke.c@xxxxxxxxxxxxxx> +# + VERSION="@VERSION@" +cpuid= +is_xen=1 + function fail { echo "virt-what: $1" exit 1 @@ -38,7 +48,8 @@ echo "Options:" echo " --help Display this help" echo " --version Display version and exit" - exit 0 + # exit after printing + exit 1 } # Handle the command line arguments, if any. @@ -70,74 +81,99 @@ exec_prefix=@exec_prefix@ PATH=@libexecdir@:/sbin:/usr/sbin:$PATH -# Check for various products in the BIOS information. +detect_virt_env_using_misc_info() { -dmi=`dmidecode 2>&1` + # Check for various products in the BIOS information. -if echo "$dmi" | grep -q 'Manufacturer: VMware'; then - echo vmware -fi + dmi=`dmidecode 2>&1` -if echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation'; then - echo virtualpc -fi + if echo "$dmi" | grep -q 'Manufacturer: VMware'; then + echo vmware + exit 0 + fi -# Check for VirtualBox. -# Added by Laurent Léonard. -if echo "$dmi" | grep -q 'Manufacturer: innotek GmbH'; then - echo virtualbox -fi + if echo "$dmi" | grep -q 'Manufacturer: Microsoft Corporation'; then + echo virtualpc + exit 0 + fi -# Check for OpenVZ / Virtuozzo. -# Added by Evgeniy Sokolov. -# /proc/vz - always exists if OpenVZ kernel is running (inside and outside -# container) -# /proc/bc - exists on node, but not inside container. + # Check for VirtualBox. + # Added by Laurent Léonard. + if echo "$dmi" | grep -q 'Manufacturer: innotek GmbH'; then + echo virtualbox + exit 0 + fi -if [ -d /proc/vz -a ! -d /proc/bc ]; then - echo openvz -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 + echo openvz + exit 0 + fi -# Check for UML. -# Added by Laurent Léonard. -if grep -q 'UML' /proc/cpuinfo; then - echo uml -fi + # Check for UML. + # Added by Laurent Léonard. + if grep -q 'UML' /proc/cpuinfo; then + echo uml + exit 0 + fi + + exit 1 +} # To tell if it is Xen and KVM HVM (fully virtualized) we can use this # helper C program. -cpuid=`virt-what-cpuid-helper` - -# Check for Xen. +detect_virt_env_using_cpuid () { + cpuid=`virt-what-cpuid-helper` + + # Check for Xen. + + if [ "$cpuid" = "XenVMMXenVMM" ]; then + echo xen; echo xen-hvm + exit 0 + elif [ -f /proc/xen/privcmd ]; then + echo xen; echo xen-dom0 + exit 0 + elif [ -f /proc/xen/capabilities ]; then + echo xen; echo xen-domU + exit 0 + elif [ -d /proc/xen ]; then + # This directory can be present when Xen paravirt drivers are + # installed, even on baremetal. Don't confuse people by + # printing anything. + : + fi -if [ "$cpuid" = "XenVMMXenVMM" ]; 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. - : -fi + # Check for QEMU/KVM. -# Check for QEMU/KVM. + if [ ! "$is_xen" ]; then + # Disable this test if we know this is Xen already, because Xen + # uses QEMU for its device model. + + if grep -q 'QEMU' /proc/cpuinfo; then + if [ "$cpuid" = "KVMKVMKVM" ]; then + echo kvm + exit 0 + else + echo qemu + exit 0 + fi + fi + fi -if [ ! "$is_xen" ]; then - # Disable this test if we know this is Xen already, because Xen - # uses QEMU for its device model. - - if grep -q 'QEMU' /proc/cpuinfo; then - if [ "$cpuid" = "KVMKVMKVM" ]; then - echo kvm - else - echo qemu + # Check for VMware + if [ "$cpuid" = "VMwareVMware" ]; then + echo vmware + exit 0 fi - fi -fi +} + + +detect_virt_env_using_cpuid +# If the above fails then call the next function +detect_virt_env_using_misc_info -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
