On Mon, Jul 19, 2010 at 12:19:22PM +0300, Gleb Natapov wrote: > Vcpu executes "in %ax". Next instruction is executed 6 seconds later. > All timers that should have been processed during this time fire at the > same moment triggering all kind of timeouts. Think about watchdog that > should be written into every two seconds otherwise it does reset.
This particular code runs very early in boot, and the atomic copy operation is very quick even with a 100MB initrd. But the question I think should be: If a guest maliciously (after boot) tried to use this mechanism, could it do harm to the host? Or would it just harm itself? Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://et.redhat.com/~rjones/libguestfs/ See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html
