28.7. ゲストのタイプと実装を識別

#!/bin/bash
declare -i IS_HVM=0
declare -i IS_PARA=0
check_hvm()
{
        IS_X86HVM="$(strings /proc/acpi/dsdt | grep int-xen)"
          if [ x"${IS_X86HVM}" != x ]; then
           echo "Guest type is full-virt x86hvm"
           IS_HVM=1
        fi
}
check_para()
{
        if $(grep -q control_d /proc/xen/capabilities); then
          echo "Host is dom0"
          IS_PARA=1
        else
          echo "Guest is para-virt domU"
          IS_PARA=1
        fi
}
if [ -f /proc/acpi/dsdt ]; then 
        check_hvm
fi

if [ ${IS_HVM} -eq 0 ]; then
        if [ -f /proc/xen/capabilities ] ; then
                check_para
        fi
     fi
if [ ${IS_HVM} -eq 0 -a ${IS_PARA} -eq 0 ]; then
        echo "Baremetal platform"
fi