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/usr/share/perl5/ImVirt/VMD/Generic.pm is in libimvirt-perl 0.9.6-2.

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# ImVirt - I'm virtualized?
#
# Authors:
#   Thomas Liske <liske@ibh.de>
#
# Copyright Holder:
#   2009 - 2012 (C) IBH IT-Service GmbH [http://www.ibh.de/]
#
# License:
#   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
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this package; if not, write to the Free Software
#   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
#

package ImVirt::VMD::Generic;

use strict;
use warnings;

use ImVirt;
use ImVirt::Utils::helper;
use ImVirt::Utils::cpuinfo;
use ImVirt::Utils::dmesg;
use ImVirt::Utils::procfs;

ImVirt::register_vmd(__PACKAGE__);

sub detect($) {
    ImVirt::debug(__PACKAGE__, 'detect()');

    my $dref = shift;

    # Is hardware virtualization available?
    if(defined(my $f = cpuinfo_hasflags(
	'vmx' => IMV_PTS_MINOR,
	'svm' => IMV_PTS_MINOR,
      ))) {
	ImVirt::inc_pts($dref, $f, IMV_PHYSICAL) if($f > 0);
    }

    # Does the kernel provide /dev/kvm?
    ImVirt::inc_pts($dref, IMV_PTS_MINOR, IMV_PHYSICAL)
	if(-c '/dev/kvm');

    # Does the kernel reports a hypervisor?
    if(defined(my $f = cpuinfo_hasflags(
	'hypervisor' => IMV_PTS_DRASTIC,
      ))) {
	ImVirt::inc_pts($dref, $f, IMV_VIRTUAL) if($f > 0);
    }

    # Check helper output for hypervisor detection
    if(my $hlp = helper('hvm')) {
	ImVirt::inc_pts($dref, IMV_PTS_NORMAL, IMV_VIRTUAL);
    }

    # Look for dmesg lines
    if(defined(my $m = dmesg_match(
	'Booting paravirtualized kernel on bare hardware' => IMV_PTS_NORMAL,
      ))) {
	if($m > 0) {
	    ImVirt::inc_pts($dref, $m, IMV_VIRTUAL);
	}
    }
}

sub pres() {
    return (IMV_PHYSICAL, IMV_VIRTUAL);
}

1;