de-ibh/imvirt

detects several virtualizations

imvirt's Issues

On VirtualBox imvirt says "Physical"

On FreeBSD 10.3.

new release version (git tag)

Hey,
the last release (git tag) was done around 2013. There has happened some smaller changes in the meanwhile, maybe its time for another tag? 😋
cheers

xen detection broken

Using PVHVM (but was also broken with PV, just don't have the data anymore). Using packages from debian stable.

I know about #15, tried patching it locally - usually the output is Unknown, sometimes it picks Xen PV. When I tried fixing the sort locally the output is always Unknown.

Maybe http://www.brendangregg.com/blog/2014-05-09/xen-feature-detection.html is useful.

Bit 11 (0x800) in /sys/hypervisor/properties/features marks dom0 vs domU (when /sys/hypervisor/type is xen).

Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz

# imvirt -d
[...]
$VAR1 = {
          'Xen HVM 4.8' => '0.447761194029851',
          'Xen PV' => '0.537313432835821',
          'Physical' => '0.0149253731343284'
        };
[...]

# /usr/lib/imvirt/hvm
XenVMMXenVMM
# /usr/lib/imvirt/xen
HVM 4.8
# cat /sys/hypervisor/type
xen
# cat /sys/hypervisor/properties/features
00002705
# dmesg | grep 'Xen HVM'
[    0.000000] DMI: Xen HVM domU, BIOS 4.8.3-pre 11/25/2017
[    0.000000] Booting paravirtualized kernel on Xen HVM
[    0.000000] xen:events: Xen HVM callback vector for event delivery is enabled

Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz

# imvirt -d
[...]
$VAR1 = {
          'Xen PV' => '0.556701030927835',
          'Physical' => '0.0103092783505155',
          'Xen HVM 4.8' => '0.43298969072165'
        };
[...]

# /usr/lib/imvirt/hvm 
XenVMMXenVMM
# /usr/lib/imvirt/xen
HVM 4.8
# cat /sys/hypervisor/type
xen
# cat /sys/hypervisor/properties/features
00002705
# dmesg | grep 'Xen HVM'
[    0.000000] DMI: Xen HVM domU, BIOS 4.8.3-pre 11/25/2017
[    0.000000] Booting paravirtualized kernel on Xen HVM
[    0.000000] xen:events: Xen HVM callback vector for event delivery is enabled

Linode VM not detected as virtualized machine

As discussed here. imvirt-report

Running imvirt multiple times results in unstable and incorrect output

Running imvirt multiple times results in unstable and incorrect output on some KVM virtual machines. Example output:

$ imvirt
Unknown
$ imvirt
KVM
$ imvirt
Unknown
$ imvirt
KVM
$ imvirt
KVM
$ imvirt
Unknown

The correct answer is KVM …

Probably interesting part of imvirt-report:

Good:

$VAR1 = {
   'KVM' => '0.653333333333333',
   'Physical' => '0.0133333333333333',
   'lguest' => '0.333333333333333'
 };

ImVirt: imv_get: m = 0.333333333333333
ImVirt: imv_get: s² = 0.1024
ImVirt: imv_get: 0.653333333333333 - sqrt(0.1024) > 0.0133333333333333
KVM

vs.

Bad:

ImVirt: imvirt_detect():
$VAR1 = {
   'lguest' => '0.333333333333333',                             
   'Physical' => '0.0133333333333333',
   'KVM' => '0.653333333333333'
 };

ImVirt: imv_get: m = 0.333333333333333                                 
ImVirt: imv_get: s² = 0.1024
ImVirt: imv_get: 0.653333333333333 - sqrt(0.1024) > 0.333333333333333  
Unknown

This is seconds later on the same machine.

Any ideas?

Broken portability

As per ./PORTABLE.md the imvirt-bundle should just run as an executeable, but apparently it does require some dependencies still, as it complains about it:

./imvirtp-bundle 

Attempt to reload DynaLoader.pm aborted.

Compilation failed in require at /usr/share/perl/5.14/XSLoader.pm line 99.

Compilation failed in require at /usr/lib/perl/5.14/IO/Handle.pm line 9.

BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/Handle.pm line 9.

Compilation failed in require at /usr/lib/perl/5.14/IO/Seekable.pm line 9.

BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/Seekable.pm line 9.

Compilation failed in require at /usr/lib/perl/5.14/IO/File.pm line 11.

BEGIN failed--compilation aborted at /usr/lib/perl/5.14/IO/File.pm line 11.

Compilation failed in require at /usr/bin/par-archive line 354.

It was run on Ubuntu Desktop 22.04.2 LTS [amd64, minimal install] in Gnome Terminal under user privilegues.
Version is v0.9.6.

Ideally I'd look for a self-contained executeable with no dependencies even if that creates a bigger file.

Please let me know if I can be of any assistance in fixing it.