[PATCH kernel v8 4/4] virtio-balloon: VIRTIO_BALLOON_F_HOST_REQ_VQ

2017-03-16 Thread Wei Wang
From: Liang Li Add a new vq, host request vq. The host uses the vq to send requests to the guest. Upon getting a request, the guest responds what the host needs via this vq. The patch implements the request of getting the unsed pages from the guest. The unused guest pages are avoided to migrate

Re: [PATCH kernel v8 4/4] virtio-balloon: VIRTIO_BALLOON_F_HOST_REQ_VQ

2017-03-16 Thread Michael S. Tsirkin
On Thu, Mar 16, 2017 at 03:08:47PM +0800, Wei Wang wrote: > From: Liang Li > > Add a new vq, host request vq. The host uses the vq to send > requests to the guest. Upon getting a request, the guest responds > what the host needs via this vq. > > The patch implements the request of getting the un