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| author | Andrey Gruzdev <andrey.gruzdev@virtuozzo.com> | 2021-01-29 13:14:06 +0300 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2021-02-08 11:19:51 +0000 |
| commit | 8518278a6af589ccc401f06e35f171b1e6fae800 (patch) | |
| tree | b4875300b2f5d8595f56e9e4a0803f6dab5aa4f8 /python/qemu | |
| parent | 278e2f551a095b234de74dca9c214d5502a1f72c (diff) | |
| download | focaccia-qemu-8518278a6af589ccc401f06e35f171b1e6fae800.tar.gz focaccia-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 'python/qemu')
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