Issue #8210 has been updated by Adrien Thebo.

Assignee deleted (shubhra sinha varma)

If I recall correctly, checking the CPUID instruction means having native 
compiled code - or at least, when I looked at virt-what it was building a tiny 
binary to do this detection. Considering facter can run on anything that ruby 
runs on, we would have to build a LOT of binaries for this detection, since 
it's a little crazy to compile code upon package installation. Building this 
behavior into facter itself seems like a no-go.

We could have a resolution method that attempts to use virt-what if it's 
available but falls back to other methods if it's not present. However, I would 
expect that people would probably want virt-what as a required dependency and 
we try to keep facter light on dependency.
----------------------------------------
Bug #8210: virtual => physical for kvm guests
https://projects.puppetlabs.com/issues/8210#change-63344

Author: Markus Falb
Status: Re-opened
Priority: Normal
Assignee: 
Category: library
Target version: 1.6.x
Keywords: 
Branch: 
Affected Facter version: 1.6.2


The Output from /proc/cpuinfo can not used reliable for telling that it is a 
kvm virtual machine.
On a CentOS 5.6 kvm Host with CentOS guests /proc/cpuinfo tells me:

for a smp guest
    model name  : QEMU Virtual CPU version 0.9.1

with only one cpu in the guest:
    model name  : Pentium II (Klamath)

but in both cases:
    $ dmidecode -t 4
    ...
    Manufacturer: QEMU
    ...

I believe it is possible to specify what cpu is used so on the commandline, so 
relying on the model name is not always working

For more information please also have a look at 
<br>[https://bugzilla.redhat.com/show_bug.cgi?id=707523](https://bugzilla.redhat.com/show_bug.cgi?id=707523)


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