erated KVM virtual machines (ie, possesses Virtualization Technology)
kvm-ok is a program that will determine if the locate system can host
hardware accelerated KVM virtual machines.
The program will first determine if /proc/cpuinfo contains the flags
indicating that the CPU has the Virtualization Technology (VT) capabil-
Next, it will check if the /dev/kvm device exists.
If running as root, it will check your CPU's MSRs to see if VT is dis-
abled in the BIOS.
In some failure cases, kvm-ok provides hints on how you might go about
enabling KVM on a system where it is arbitrarily disabled.
If KVM can be used, this script will exit 0, otherwise it will exit
The disabled-by-bios check currently scans dmesg(1) for a message dis-
played by the kernel. This is not ideal, in that a long-running system
will eventually roll the dmesg logs. The kernel should expose the dis-
abled-by-bios flag in /proc/cpuinfo.
This manpage and the utility was written by Dustin Kirkland <kirk-
firstname.lastname@example.org> for Ubuntu systems (but may be used by others).
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU General Public License, Version 3 published
by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License
can be found in /usr/share/common-licenses/GPL-3.
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