search for: unused_page_chunk_hdr

...alloon_page_chunk *balloon_page_chunk; + /* + * Buffer for PAGE_CHUNK_TYPE_UNUSED: + * virtio_balloon_miscq_hdr + + * virtio_balloon_page_chunk_hdr + + * virtio_balloon_page_chunk * MAX_PAGE_CHUNKS + */ + struct virtio_balloon_miscq_hdr *miscq_out_hdr; + struct virtio_balloon_page_chunk_hdr *unused_page_chunk_hdr; + struct virtio_balloon_page_chunk *unused_page_chunk; + + /* Buffer for host to send cmd to miscq */ + struct virtio_balloon_miscq_hdr *miscq_in_hdr; + /* Bitmap used to record pages */ unsigned long *page_bmap[PAGE_BMAP_COUNT_MAX]; /* Number of the allocated page_bmap */ @@ -220,6 +234,10...

...> + /* > + * Buffer for PAGE_CHUNK_TYPE_UNUSED: > + * virtio_balloon_miscq_hdr + > + * virtio_balloon_page_chunk_hdr + > + * virtio_balloon_page_chunk * MAX_PAGE_CHUNKS > + */ > + struct virtio_balloon_miscq_hdr *miscq_out_hdr; > + struct virtio_balloon_page_chunk_hdr *unused_page_chunk_hdr; > + struct virtio_balloon_page_chunk *unused_page_chunk; > + > + /* Buffer for host to send cmd to miscq */ > + struct virtio_balloon_miscq_hdr *miscq_in_hdr; > + > /* Bitmap used to record pages */ > unsigned long *page_bmap[PAGE_BMAP_COUNT_MAX]; > /* Number of the a...

...> + /* > + * Buffer for PAGE_CHUNK_TYPE_UNUSED: > + * virtio_balloon_miscq_hdr + > + * virtio_balloon_page_chunk_hdr + > + * virtio_balloon_page_chunk * MAX_PAGE_CHUNKS > + */ > + struct virtio_balloon_miscq_hdr *miscq_out_hdr; > + struct virtio_balloon_page_chunk_hdr *unused_page_chunk_hdr; > + struct virtio_balloon_page_chunk *unused_page_chunk; > + > + /* Buffer for host to send cmd to miscq */ > + struct virtio_balloon_miscq_hdr *miscq_in_hdr; > + > /* Bitmap used to record pages */ > unsigned long *page_bmap[PAGE_BMAP_COUNT_MAX]; > /* Number of the a...

This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Changes: v8->v9: 1) Split the two new features, VIRTIO_BALLOON_F_BALLOON_CHUNKS and VIRTIO_BALLOON_F_MISC_VQ, which were mixed together in the previous implementation; 2) Simpler

This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Changes: v8->v9: 1) Split the two new features, VIRTIO_BALLOON_F_BALLOON_CHUNKS and VIRTIO_BALLOON_F_MISC_VQ, which were mixed together in the previous implementation; 2) Simpler

...->balloon_page_chunk_hdr; msg_len = sizeof(struct virtio_balloon_page_chunk_hdr) + nr_chunks * sizeof(struct virtio_balloon_page_chunk_entry); break; case PAGE_CHUNK_TYPE_UNUSED: msg_buf = CHUNK_TO_MISCQ_MSG(vb->unused_page_chunk_hdr); msg_len = sizeof(struct virtio_balloon_miscq_hdr) + sizeof(struct virtio_balloon_page_chunk_hdr) + nr_chunks * sizeof(struct virtio_balloon_page_chunk_entry); break; default: dev_warn(&vb->vdev->dev, &quot...

...hdr; > msg_len = sizeof(struct virtio_balloon_page_chunk_hdr) + > nr_chunks * sizeof(struct virtio_balloon_page_chunk_entry); > break; > case PAGE_CHUNK_TYPE_UNUSED: > msg_buf = CHUNK_TO_MISCQ_MSG(vb->unused_page_chunk_hdr); > msg_len = sizeof(struct virtio_balloon_miscq_hdr) + sizeof(struct > virtio_balloon_page_chunk_hdr) + > nr_chunks * sizeof(struct virtio_balloon_page_chunk_entry); > break; > default: > dev_warn(&a...

...hdr; > msg_len = sizeof(struct virtio_balloon_page_chunk_hdr) + > nr_chunks * sizeof(struct virtio_balloon_page_chunk_entry); > break; > case PAGE_CHUNK_TYPE_UNUSED: > msg_buf = CHUNK_TO_MISCQ_MSG(vb->unused_page_chunk_hdr); > msg_len = sizeof(struct virtio_balloon_miscq_hdr) + sizeof(struct > virtio_balloon_page_chunk_hdr) + > nr_chunks * sizeof(struct virtio_balloon_page_chunk_entry); > break; > default: > dev_warn(&a...

On Fri, Apr 14, 2017 at 04:37:52PM +0800, Wei Wang wrote: > On 04/14/2017 12:34 AM, Michael S. Tsirkin wrote: > > On Thu, Apr 13, 2017 at 05:35:05PM +0800, Wei Wang wrote: > > > > So we don't need the bitmap to talk to host, it is just > > a data structure we chose to maintain lists of pages, right? > Right. bitmap is the way to gather pages to chunk. >

On Fri, Apr 14, 2017 at 04:37:52PM +0800, Wei Wang wrote: > On 04/14/2017 12:34 AM, Michael S. Tsirkin wrote: > > On Thu, Apr 13, 2017 at 05:35:05PM +0800, Wei Wang wrote: > > > > So we don't need the bitmap to talk to host, it is just > > a data structure we chose to maintain lists of pages, right? > Right. bitmap is the way to gather pages to chunk. >