On 19 January 2015 at 12:49, Greg Kurz <gk...@linux.vnet.ibm.com> wrote: > Heh, not sure I would have provided such a comprehensive answer. :)
...so now I have a question: what semantics does virtio expect for its virtio_ld*/st*_phys accessors if QEMU is emulating a CPU with virtualization support? Is the assumption just that the guest that's using virtio has a 1:1 mapping of what it thinks are physical addresses to real guest physical addresses? (ie you couldn't have a virtio device that you passed through to a hypervisor guest, because what the guest thinks are physical addresses are really just intermediate physical addresses in that configuration). -- PMM
