IMPORTANT: This does NOT add support for merging the bitmaps during block jobs, so manual deletion of snapshots will corrupt the incremental metadata!. Allow combining snapshots and backups. During a snapshot we create a bitmap for any active persistent bitmap to continue tracking the bitmaps properly (as qemu doesn't support creating a dirty bitmap from the allocation map). This also means that it works only for an active VM since there also isn't a way to do it via qemu-img. Thus a workaround is to start a VM as paused if this is required for offline VMs. We also now can merge bitmaps accross the backing chains. You can fetch the changes at: git fetch https://gitlab.com/pipo.sk/libvirt.git backup-snapshots Peter Krempa (19): virsh: Add QMP command wrapping for 'qemu-monitor-command' virsh: Allow extracting 'return' section of QMP command in 'qemu-monitor-command' qemu: monitor: Extract data about dirty-bimaps in qemuMonitorBlockGetNamedNodeData qemu: monitor: Extract internals of qemuMonitorJSONBlockGetNamedNodeData tests: qemublock: Add test for bitmap detection tests: qemublocktest: Add a syntetic test case for bitmap detection qemu: Check for explicit failure of qemuBlockSnapshotAddBlockdev qemu: snapshot: Fold formatting of snapshot transaction into prepare func qemu: monitor: Add 'granularity' parameter for block-dirty-bitmap-add qemu: snapshot: Propagate active bitmaps through external snapshots tests: qemublock: Add test case for detecting bitmaps as we create snapshots qemu: backup: Return 'def' instead of 'obj' from qemuBackupBeginCollectIncrementalCheckpoints qemu: backup: Extract calculations of bitmaps to merge for incremental backup qemu: backup: Propagate bitmap metadata into qemuBackupDiskPrepareOneBitmapsChain qemu: backup: Export qemuBackupDiskPrepareOneBitmapsChain for tests tests: qemublock: Add testing of bitmap merging for incremental backups qemu: block: Introduce qemuBlockNamedNodeDataGetBitmapByName qemu: backup: Merge bitmaps accross the backing chain tests: qemublock: Add tests for cross-snapshot incremental backups docs/manpages/virsh.rst | 27 +- src/qemu/qemu_backup.c | 145 ++- src/qemu/qemu_backup.h | 7 + src/qemu/qemu_block.c | 32 + src/qemu/qemu_block.h | 5 + src/qemu/qemu_checkpoint.c | 2 +- src/qemu/qemu_driver.c | 84 +- src/qemu/qemu_monitor.c | 6 +- src/qemu/qemu_monitor.h | 18 +- src/qemu/qemu_monitor_json.c | 96 +- src/qemu/qemu_monitor_json.h | 6 +- tests/qemublocktest.c | 241 +++++ .../backupmerge/basic-deep-out.json | 22 + .../backupmerge/basic-flat-out.json | 6 + .../backupmerge/basic-intermediate-out.json | 10 + .../backupmerge/snapshot-deep-out.json | 38 + .../backupmerge/snapshot-flat-out.json | 6 + .../snapshot-intermediate-out.json | 14 + tests/qemublocktestdata/bitmap/basic.json | 117 +++ tests/qemublocktestdata/bitmap/basic.out | 6 + tests/qemublocktestdata/bitmap/snapshots.json | 836 ++++++++++++++++++ tests/qemublocktestdata/bitmap/snapshots.out | 14 + tests/qemublocktestdata/bitmap/synthetic.json | 118 +++ tests/qemublocktestdata/bitmap/synthetic.out | 6 + tests/qemumonitorjsontest.c | 2 +- tools/virsh-domain.c | 76 +- 26 files changed, 1845 insertions(+), 95 deletions(-) create mode 100644 tests/qemublocktestdata/backupmerge/basic-deep-out.json create mode 100644 tests/qemublocktestdata/backupmerge/basic-flat-out.json create mode 100644 tests/qemublocktestdata/backupmerge/basic-intermediate-out.json create mode 100644 tests/qemublocktestdata/backupmerge/snapshot-deep-out.json create mode 100644 tests/qemublocktestdata/backupmerge/snapshot-flat-out.json create mode 100644 tests/qemublocktestdata/backupmerge/snapshot-intermediate-out.json create mode 100644 tests/qemublocktestdata/bitmap/basic.json create mode 100644 tests/qemublocktestdata/bitmap/basic.out create mode 100644 tests/qemublocktestdata/bitmap/snapshots.json create mode 100644 tests/qemublocktestdata/bitmap/snapshots.out create mode 100644 tests/qemublocktestdata/bitmap/synthetic.json create mode 100644 tests/qemublocktestdata/bitmap/synthetic.out -- 2.23.0 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
