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| author | Andrey Gruzdev | 2021-01-29 11:14:06 +0100 |
|---|---|---|
| committer | Dr. David Alan Gilbert | 2021-02-08 12:19:51 +0100 |
| commit | 8518278a6af589ccc401f06e35f171b1e6fae800 (patch) | |
| tree | b4875300b2f5d8595f56e9e4a0803f6dab5aa4f8 /migration/savevm.h | |
| parent | migration: support UFFD write fault processing in ram_save_iterate() (diff) | |
| download | qemu-8518278a6af589ccc401f06e35f171b1e6fae800.tar.gz qemu-8518278a6af589ccc401f06e35f171b1e6fae800.tar.xz qemu-8518278a6af589ccc401f06e35f171b1e6fae800.zip | |
migration: implementation of background snapshot thread
Introducing implementation of 'background' snapshot thread
which in overall follows the logic of precopy migration
while internally utilizes completely different mechanism
to 'freeze' vmstate at the start of snapshot creation.
This mechanism is based on userfault_fd with wr-protection
support and is Linux-specific.
Signed-off-by: Andrey Gruzdev <andrey.gruzdev@virtuozzo.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20210129101407.103458-5-andrey.gruzdev@virtuozzo.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration/savevm.h')
| -rw-r--r-- | migration/savevm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/migration/savevm.h b/migration/savevm.h index ba64a7e271..aaee2528ed 100644 --- a/migration/savevm.h +++ b/migration/savevm.h @@ -64,5 +64,7 @@ int qemu_loadvm_state(QEMUFile *f); void qemu_loadvm_state_cleanup(void); int qemu_loadvm_state_main(QEMUFile *f, MigrationIncomingState *mis); int qemu_load_device_state(QEMUFile *f); +int qemu_savevm_state_complete_precopy_non_iterable(QEMUFile *f, + bool in_postcopy, bool inactivate_disks); #endif |