Anthony Liguori writes ("[Qemu-devel] Re: [kvm-devel] [PATCH 1/6] Use correct types to enable > 2G support"): > The alternative is to change all the places that assume phys_ram_base + > PA which I don't like very much.
We would ideally like to do this for Xen, at least in the places we care about. (Xen uses less of the qemu tree than KVM, I think.) In Xen, the guest memory is not in general mapped into the host qemu's address space. Ian.