Re:This is an exploit for virtual servers (Score 1)

Comment from theinvisiblethings blog: "I doubt this will work from a xen domU or dom0 context because 1) AFAIK you don't have access to MTRR registers from there 2) their kernels are running in ring1 not ring0." Maybe openvz/vserver virtualization restrict access to MTRR somehow too... why you so sure?