Michael S. Tsirkin wrote: > > I think the right long term answer to all this is a way to get QEMU to > > dump it's current machine configuration in glorious detail as a file > > which can be reloaded as a machine configuration. > > And then we'll have the same set of problems there. We will, and the solution will be the same: options to create devices as they were in older versions of QEMU. It only needs to cover device features which matter to guests, not every bug fix. However with a machine configuration which is generated by QEMU, there's less worry about proliferation of obscure options, compared with the command line. You don't necessarily have to document every backward-compatibility option in any detail, you just have to make sure it's written and read properly, which is much the same thing as the snapshot code does. -- Jamie _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization