bdpayne/libvmi — pull request #141 by tklengyel (2014-03-14 19:09:07+00:00)
Title: Copy out the old value when processing CR0/CR3/CR4 events

The feature is only available with the latest version of xen-unstable that has my patch merged (http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=a93b8e8ca54cc2c90d9272a06d7944d6ca615d42).