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| author | Maciej S. Szmigiero <maciej.szmigiero@oracle.com> | 2025-03-04 23:03:32 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2025-03-06 06:47:33 +0100 |
| commit | 4e55cb3cdeb099cb65f75f5d3b061e3e1319cf3b (patch) | |
| tree | e98bc077902c8c34a53446f7abc78c9234cb2a74 /migration/migration.h | |
| parent | b5aa74968b27f37523c180e9c42ca007dbc7758f (diff) | |
| download | focaccia-qemu-4e55cb3cdeb099cb65f75f5d3b061e3e1319cf3b.tar.gz focaccia-qemu-4e55cb3cdeb099cb65f75f5d3b061e3e1319cf3b.zip | |
migration: Add MIG_CMD_SWITCHOVER_START and its load handler
This QEMU_VM_COMMAND sub-command and its switchover_start SaveVMHandler is used to mark the switchover point in main migration stream. It can be used to inform the destination that all pre-switchover main migration stream data has been sent/received so it can start to process post-switchover data that it might have received via other migration channels like the multifd ones. Add also the relevant MigrationState bit stream compatibility property and its hw_compat entry. Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Zhang Chen <zhangckid@gmail.com> # for the COLO part Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com> Link: https://lore.kernel.org/qemu-devel/311be6da85fc7e49a7598684d80aa631778dcbce.1741124640.git.maciej.szmigiero@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'migration/migration.h')
| -rw-r--r-- | migration/migration.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h index 4639e2a7e4..7b4278e2a3 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -400,6 +400,8 @@ struct MigrationState { bool send_configuration; /* Whether we send section footer during migration */ bool send_section_footer; + /* Whether we send switchover start notification during migration */ + bool send_switchover_start; /* Needed by postcopy-pause state */ QemuSemaphore postcopy_pause_sem; |