> @@ -682,10 +733,18 @@ void virtio_init_pci(VirtIOPCIProxy *proxy, > VirtIODevice *vdev) if (size & (size-1)) > size = 1 << qemu_fls(size); > > + proxy->bar0_mask = size - 1; You'll get better performance if you use page-sized mappings. You're already creating a mapping bigger than the actual data (rounding up to power-of-two), so you may as well pick a value that's convenient for qemu to map into the address space. Paul -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html