search for: host_req_vq

...o/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -64,7 +64,7 @@ struct balloon_page_chunk { typedef __le64 resp_data_t; struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate_vq, *stats_vq, *host_req_vq; /* The balloon servicing is delegated to a freezable workqueue. */ struct work_struct update_balloon_stats_work; @@ -104,6 +104,8 @@ struct virtio_balloon { * pfn_start & pfn_stop: records the start and stop pfn in each cover */ unsigned long pfn_min, pfn_max, pfn_start, pfn_stop...

...644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -66,7 +66,7 @@ struct balloon_page_chunk_ext { struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate_vq, *stats_vq, *host_req_vq; /* The balloon servicing is delegated to a freezable workqueue. */ struct work_struct update_balloon_stats_work; @@ -95,6 +95,8 @@ struct virtio_balloon { unsigned int nr_page_bmap; /* Used to record the processed pfn range */ unsigned long min_pfn, max_pfn, start_pfn, end_pfn; + /* Re...

...t, instead of two. 2) re-write the virtio-balloon implementation patch. 3) commit changes 4) patch re-org Liang Li (4): virtio-balloon: deflate via a page list virtio-balloon: VIRTIO_BALLOON_F_CHUNK_TRANSFER mm: add inerface to offer info about unused pages virtio-balloon: VIRTIO_BALLOON_F_HOST_REQ_VQ drivers/virtio/virtio_balloon.c | 533 ++++++++++++++++++++++++++++++++---- include/linux/mm.h | 3 + include/uapi/linux/virtio_balloon.h | 31 +++ mm/page_alloc.c | 114 ++++++++ 4 files changed, 635 insertions(+), 46 deletions(-) -- 2.7.4

...t, instead of two. 2) re-write the virtio-balloon implementation patch. 3) commit changes 4) patch re-org Liang Li (4): virtio-balloon: deflate via a page list virtio-balloon: VIRTIO_BALLOON_F_CHUNK_TRANSFER mm: add inerface to offer info about unused pages virtio-balloon: VIRTIO_BALLOON_F_HOST_REQ_VQ drivers/virtio/virtio_balloon.c | 533 ++++++++++++++++++++++++++++++++---- include/linux/mm.h | 3 + include/uapi/linux/virtio_balloon.h | 31 +++ mm/page_alloc.c | 114 ++++++++ 4 files changed, 635 insertions(+), 46 deletions(-) -- 2.7.4

Take over this work from Liang. This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 1) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Please check patch 0003 for more details about optimization 1). For an idle guest with 8GB RAM, optimization 2) can help shorten the total live migration

Take over this work from Liang. This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 1) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Please check patch 0003 for more details about optimization 1). For an idle guest with 8GB RAM, optimization 2) can help shorten the total live migration