On Mon, 2 Mar 2026 12:43:30 +0100 Lukas Straub <[email protected]> wrote:
> > Hello everyone, > This has some cleanups for and adds multifd support and migration unit tests > for COLO migration. > > Regards, > Lukas Hello Peter, Hello Fabiano, Will you apply this? Best regards, Lukas Straub > > Signed-off-by: Lukas Straub <[email protected]> > --- > Changes in v11: > - Use colo with return-path capability > - Link to v10: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v10: > - multifd: always kick the main thread > - always open the return path socket on source > - Link to v9: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v9: > - Rebase onto master > - Fix two rare bugs discovered during sresstesting the colo unit test > - Link to v8: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v8: > - Fix peter's review comments > - Link to v7: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v7: > - Fix peter's review comments > - Link to v6: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v6: > - Fix the crash when running COLO with TCG accel. > - Link to v5: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v5: > - Remove unused inmports from multifd-colo.c > - Mention the checkpoint overhead of reset to the Q35 fix > - Link to v4: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v4: > - Add cleanup patches to remove migration_incoming_colo_enabled() and > MIG_CMD_ENABLE_COLO > - Add more comments to the colo unit test > - Call colo_release_ram_cache() after multifd threads terminate > - Link to v3: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v3: > - Fix peter's review comments. > - Fix COLO with Q35 machine > - Link to v2: > https://lore.kernel.org/qemu-devel/[email protected] > > Changes in v2: > - Fix review comments > - Hide stderr in colo migration test since the logged errors are expected > - Add benchmarking data for multifd > - Add myself as maintainer for COLO migration framework > - Link to v1: > https://lore.kernel.org/qemu-devel/[email protected] > > --- > Lukas Straub (21): > MAINTAINERS: Add myself as maintainer for COLO migration framework > MAINTAINERS: Remove Hailiang Zhang from COLO migration framework > colo: Setup ram cache in normal migration path > colo: Replace migration_incoming_colo_enabled() with migrate_colo() > colo: Remove ENABLE_COLO savevm command and mark it as deprecated > ram: Remove colo special-casing > multifd: Move ram state receive into multifd_ram_state_recv() > multifd: Add COLO support > Call colo_release_ram_cache() after multifd threads terminate > colo: Fix crash during device vmstate load > colo: Hold the BQL while sending ram state > colo: Do not hold the BQL while receiving ram state. > migration-test: Add COLO migration unit test > Convert colo main documentation to restructuredText > qemu-colo.rst: Miscellaneous changes > qemu-colo.rst: Add my copyright > qemu-colo.rst: Simplify the block replication setup > multifd: Fix hang if send thread errors during sync > colo: Use file lock in primary_vm_do_failover() > migration: Keep s->rp_state.from_dst_file open until migration ends > colo: Reuse the return path from migration on primary and secondary side > > MAINTAINERS | 6 +- > docs/COLO-FT.txt | 334 ---------------------------------- > docs/system/index.rst | 1 + > docs/system/qemu-colo.rst | 362 > +++++++++++++++++++++++++++++++++++++ > include/migration/colo.h | 3 - > migration/colo.c | 59 +++--- > migration/meson.build | 2 +- > migration/migration.c | 80 ++++---- > migration/multifd-colo.c | 44 +++++ > migration/multifd-colo.h | 26 +++ > migration/multifd-nocomp.c | 10 +- > migration/multifd.c | 26 ++- > migration/multifd.h | 5 +- > migration/options.c | 10 +- > migration/ram.c | 12 +- > migration/savevm.c | 37 +--- > migration/savevm.h | 1 - > migration/trace-events | 1 - > tests/qtest/meson.build | 7 +- > tests/qtest/migration-test.c | 1 + > tests/qtest/migration/colo-tests.c | 199 ++++++++++++++++++++ > tests/qtest/migration/framework.c | 13 ++ > tests/qtest/migration/framework.h | 5 + > 23 files changed, 777 insertions(+), 467 deletions(-) > --- > base-commit: d8a9d97317d03190b34498741f98f22e2a9afe3e > change-id: 20251230-colo_unit_test_multifd-8bf58dcebd46 > > Best regards,
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