kvm-ok

kvm-ok(1)                         cpu-checker                        kvm-ok(1)

NAME
       kvm-ok - determine if this system is capable of running hardware accel-
       erated KVM virtual machines (ie, possesses Virtualization Technology)

DESCRIPTION
       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-
       ity.

       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
       non-zero.

SEE ALSO
       kvm(1), dmesg(1)

FILES
       /proc/cpuinfo, /dev/kvm

BUGS
       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.

       https://bugs.launchpad.net/ubuntu/+source/linux/+bug/535373

MORE INFORMATION
       http://launchpad.net/cpu-checker

AUTHOR
       This  manpage  and  the  utility  was written by Dustin Kirkland <kirk-
       land@canonical.com> 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.

cpu-checker                      9 March 2010                        kvm-ok(1)