On Tue, 2016-04-19 at 22:34 +0800, Liang Li wrote: > The free page bitmap will be sent to QEMU through virtio interface > and used for live migration optimization. > Drop the cache before building the free page bitmap can get more > free pages. Whether dropping the cache is decided by user. >
How do you prevent the guest from using those recently-freed pages for something else, between when you build the bitmap and the live migration completes?
