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authorJuan Quintela <quintela@redhat.com>2017-04-05 18:32:37 +0200
committerJuan Quintela <quintela@redhat.com>2017-05-18 18:04:54 +0200
commit2833c59b947cf909020c4d6194aac35f383e832b (patch)
tree955fdc5ab08961829f9813e729866dd03949eb6a /qapi-schema.json
parentf4a06d1391acf919da3f4291f2d6a70344d21c66 (diff)
downloadqemu-arm-2833c59b947cf909020c4d6194aac35f383e832b.tar.gz
migration: Create block capability
Create one capability for block migration and one parameter for incremental block migration. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> --- - address all Markus comments - use Markus and Eric text descriptions - change logic another time - improve text messages
Diffstat (limited to 'qapi-schema.json')
-rw-r--r--qapi-schema.json28
1 files changed, 25 insertions, 3 deletions
diff --git a/qapi-schema.json b/qapi-schema.json
index 80603cfc51..e38c5f0423 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -894,11 +894,18 @@
# @release-ram: if enabled, qemu will free the migrated ram pages on the source
# during postcopy-ram migration. (since 2.9)
#
+# @block: If enabled, QEMU will also migrate the contents of all block
+# devices. Default is disabled. A possible alternative uses
+# mirror jobs to a builtin NBD server on the destination, which
+# offers more flexibility.
+# (Since 2.10)
+#
# Since: 1.2
##
{ 'enum': 'MigrationCapability',
'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks',
- 'compress', 'events', 'postcopy-ram', 'x-colo', 'release-ram'] }
+ 'compress', 'events', 'postcopy-ram', 'x-colo', 'release-ram',
+ 'block' ] }
##
# @MigrationCapabilityStatus:
@@ -1009,13 +1016,20 @@
# @x-checkpoint-delay: The delay time (in ms) between two COLO checkpoints in
# periodic mode. (Since 2.8)
#
+# @block-incremental: Affects how much storage is migrated when the
+# block migration capability is enabled. When false, the entire
+# storage backing chain is migrated into a flattened image at
+# the destination; when true, only the active qcow2 layer is
+# migrated and the destination must already have access to the
+# same backing chain as was used on the source. (since 2.10)
+#
# Since: 2.4
##
{ 'enum': 'MigrationParameter',
'data': ['compress-level', 'compress-threads', 'decompress-threads',
'cpu-throttle-initial', 'cpu-throttle-increment',
'tls-creds', 'tls-hostname', 'max-bandwidth',
- 'downtime-limit', 'x-checkpoint-delay' ] }
+ 'downtime-limit', 'x-checkpoint-delay', 'block-incremental' ] }
##
# @migrate-set-parameters:
@@ -1082,6 +1096,13 @@
#
# @x-checkpoint-delay: the delay time between two COLO checkpoints. (Since 2.8)
#
+# @block-incremental: Affects how much storage is migrated when the
+# block migration capability is enabled. When false, the entire
+# storage backing chain is migrated into a flattened image at
+# the destination; when true, only the active qcow2 layer is
+# migrated and the destination must already have access to the
+# same backing chain as was used on the source. (since 2.10)
+#
# Since: 2.4
##
{ 'struct': 'MigrationParameters',
@@ -1094,7 +1115,8 @@
'*tls-hostname': 'str',
'*max-bandwidth': 'int',
'*downtime-limit': 'int',
- '*x-checkpoint-delay': 'int'} }
+ '*x-checkpoint-delay': 'int',
+ '*block-incremental': 'bool' } }
##
# @query-migrate-parameters: