Lukas Straub <[email protected]> writes: > 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? >
Very likely yes. I'm starting the tests on migration-next, if all goes well I'll send the pull request later today. > 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,
