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From: Chris J Arges <chris.j.arges@canonical.com>
To: kvm@vger.kernel.org
Subject: KVM Guest Detection
Date: Fri, 06 Feb 2015 14:08:09 -0600	[thread overview]
Message-ID: <54D51F29.2000305@canonical.com> (raw)

Is there a architecture and machine type independent way to detect that
one is running inside a KVM guest? I've noticed the following systemd
code which does this detection and it seems to be very architecture
dependent for KVM:
https://github.com/systemd/systemd/blob/master/src/shared/virt.c

In addition one could grep for strings in the kernel log or CPU types if
using QEMU CPU model.

Given the many ways to do this, would it make sense to create a sysfs
entry (similar to how Xen does this with /sys/hypervisor/type), so that
one can easily tell they are running in a KVM guest?

I can work on a patch, but initial feedback would be helpful.

Thanks,
--chris j arges

             reply	other threads:[~2015-02-06 20:08 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-06 20:08 Chris J Arges [this message]
2015-02-09 13:26 ` KVM Guest Detection Paolo Bonzini
2015-02-09 14:37   ` Chris J Arges
2015-02-09 16:12     ` Paolo Bonzini
  -- strict thread matches above, loose matches on Subject: below --
2008-08-13 17:57 KVM Guest detection jd
2008-08-13 18:40 ` David Mair
2008-08-13 18:59 ` Anthony Liguori
2008-08-13 21:05   ` jd

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