mhz is our piece of code which displays  the actual frequency of the Core i7

• download and compile the source code

$ gcc mhz.c -o mhz

• change for root the owner of the executable, then change its attributs with a setuid.

# chown root mhz
# chmod u+s mhz

• make sure to load before, the following Linux daemons which provide access to the MSR registers and the SMBIOS structures

# modprobe msr
# modprobe dmi-sysfs

• then run the program with core number as the only argument.

$ mhz 3
3200

• MB = ASUS Rampage II GENE [BIOS:1701]
• CPU = Intel Core i7 920 rev C0, Base clock @ 160 Mhz
  HyperThreading[ON] , Speedstep[ON] , C-State[AUTO]
• RAM = Corsair DDRIII Dominator CAS 7-9-9-24
• GPU = MSI GeForce GTX 570 Twin Frozr II 1280 MB

Don’t be in a hurry !

Following our article how to install Xen for Debian within ArchLinux, we were stuck with packages issues between virt-manager and the Wheezy distribution.
Using command line, we successfully created a Wheezy Debian virtual machine, named VPC1 for that case.

Disappointed not being able to use the virt-manager with Debian, we then proceeded to install the OpenSUSE 64-bit overriding the Debian partition.

The installation was straightforward and provided a ready to use VM manager for Xen.

Back to ArchLinux, we are now running the previous virtual disk VPC1.img under KVM plus virt-manager. Here are shown the screenshots of the result.

Instructions in the Wiki

The Wiki gives the step by step instructions to install Debian and Xen Hypervisor straight from ArchLinux.

You can follow the instruction given into the Wiki to build a bootable ISO image, thanks to Syslinux.

Afterward, you may burn it onto a CD or test it through a virtual machine.