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| author | Dr. David Alan Gilbert | 2018-04-16 19:09:30 +0200 |
|---|---|---|
| committer | Juan Quintela | 2018-06-04 05:46:15 +0200 |
| commit | 0f073f44df109ea0910d67caede70dec95956ff6 (patch) | |
| tree | 6f519df95f4f8f982fb81def32752746948fb8e2 /qapi | |
| parent | migration: discard non-migratable RAMBlocks (diff) | |
| download | qemu-0f073f44df109ea0910d67caede70dec95956ff6.tar.gz qemu-0f073f44df109ea0910d67caede70dec95956ff6.tar.xz qemu-0f073f44df109ea0910d67caede70dec95956ff6.zip | |
migration: Don't activate block devices if using -S
Activating the block devices causes the locks to be taken on
the backing file. If we're running with -S and the destination libvirt
hasn't started the destination with 'cont', it's expecting the locks are
still untaken.
Don't activate the block devices if we're not going to autostart the VM;
'cont' already will do that anyway. This change is tied to the new
migration capability 'late-block-activate' that defaults to off, keeping
the old behaviour by default.
bz: https://bugzilla.redhat.com/show_bug.cgi?id=1560854
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/migration.json | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/qapi/migration.json b/qapi/migration.json index dc9cc85545..f7e10ee90f 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -376,13 +376,17 @@ # @postcopy-blocktime: Calculate downtime for postcopy live migration # (since 3.0) # +# @late-block-activate: If enabled, the destination will not activate block +# devices (and thus take locks) immediately at the end of migration. +# (since 3.0) +# # Since: 1.2 ## { 'enum': 'MigrationCapability', 'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks', 'compress', 'events', 'postcopy-ram', 'x-colo', 'release-ram', 'block', 'return-path', 'pause-before-switchover', 'x-multifd', - 'dirty-bitmaps', 'postcopy-blocktime' ] } + 'dirty-bitmaps', 'postcopy-blocktime', 'late-block-activate' ] } ## # @MigrationCapabilityStatus: |