Il 12/06/2013 11:25, George Dunlap ha scritto: >>> If you have 4GB of RAM it will end at 0x140000000 (or something like >>> that) and that's where the 64-bit window starts. Of course if you have >>> no RAM above the PCI hole, the 64-bit window will start at 0x100000000. >> So there's no provision whatsoever for extending the amount of RAM >> a guest may see? This is why I'd see any such allocation strategy to >> start at the end of physical address space, moving downwards.
That'd work too, I guess. > Is there a mechanism to do memory hot-plug in qemu at the moment? If > not, then there's no reason to put it anywhere else. Not yet, but then memory could also be discontiguous as long as you describe it correctly in the tables. Paolo
