Am 03.03.2017 um 06:40 schrieb Wei Wang: > From: Liang Li <liang.z.li@xxxxxxxxx> I'd prefer to split this into two parts then and to create proper subjects. If I remember correctly, the general concept was accepted by most reviewers. > > One is to add a new API to mm go get the unused page information. > The virtio balloon driver will use this new API added to get the > unused page info and send it to hypervisor(QEMU) to speed up live > migration. During sending the bitmap, some the pages may be modified > and are used by the guest, this inaccuracy can be corrected by the > dirty page logging mechanism. > > One is to add support the request for vm's unused page information, > QEMU can make use of unused page information and the dirty page > logging mechanism to skip the transportation of some of these unused > pages, this is very helpful to reduce the network traffic and speed > up the live migration process. -- Thanks, David
