On Sat, Jan 07, 2006 at 05:44:50AM +0100, Manuel Bouyer wrote: > On Sat, Jan 07, 2006 at 01:14:49AM +0100, Pavel Cahyna wrote: > > Why? > > > > if you have root in a domU, you don't need a kernel bug to use DMA, which > > opens the door to dom0. > > How do you get access to the DMA register if you don't take control over > the kernel ? i386_iopl ? Pavel Cahyna