search for: miscq_out_hdr

...struct virtio_balloon_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 */ > unsi...

...struct virtio_balloon_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 */ > unsi...

...ge_chunk_hdr *balloon_page_chunk_hdr; struct virtio_balloon_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...

...ntation under miscq with a new command (I think we can't combine them without using commands to distinguish the two features). In this way, an old driver won't work with a new QEMU or a new driver won't work with an old QEMU. Would this be considered as an issue here? > >> + miscq_out_hdr->flags = 0; >> + >> + for_each_populated_zone(zone) { >> + for (order = MAX_ORDER - 1; order > 0; order--) { >> + for (migratetype = 0; migratetype < MIGRATE_TYPES; >> + migratetype++) { >> + do { >> + ret = inquire_unused_page_blo...

...river won't work with a new QEMU or a new > driver won't work with an old QEMU. Would this be considered > as an issue here? Compatibility is and should always be handled using feature flags. There's a feature flag for this, isn't it? > > > > > > > + miscq_out_hdr->flags = 0; > > > + > > > + for_each_populated_zone(zone) { > > > + for (order = MAX_ORDER - 1; order > 0; order--) { > > > + for (migratetype = 0; migratetype < MIGRATE_TYPES; > > > + migratetype++) { > > > + do { > &gt...

...river won't work with a new QEMU or a new > driver won't work with an old QEMU. Would this be considered > as an issue here? Compatibility is and should always be handled using feature flags. There's a feature flag for this, isn't it? > > > > > > > + miscq_out_hdr->flags = 0; > > > + > > > + for_each_populated_zone(zone) { > > > + for (order = MAX_ORDER - 1; order > 0; order--) { > > > + for (migratetype = 0; migratetype < MIGRATE_TYPES; > > > + migratetype++) { > > > + do { > &gt...

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