On Sun, Aug 11, 2019 at 07:56:07AM +0200, Christoph Hellwig wrote: > So we need a flag on the virtio device, exposed by the > hypervisor (or hardware for hw virtio devices) that says: hey, I'm real, > don't take a shortcut.
The point here is that it's actually still not real. So we would still use a physical address. However Linux decides that it wants extra security by moving all data through the bounce buffer. The distinction made is that one can actually give device a physical address of the bounce buffer. -- MST _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
