block/qapi: Add qcow2 create options to schema

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>

diff --git a/qapi/block-core.json b/qapi/block-core.json
index bb2db662f726245cdd8249a4590b5b918e305a29..dfea7b0102cd3abcd0a0b828b598d65382ff7adb 100644 (file)
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -3358,6 +3358,49 @@
 ##
 { 'command': 'blockdev-del', 'data': { 'node-name': 'str' } }
 
+##
+# @BlockdevQcow2Version:
+#
+# @v2:  The original QCOW2 format as introduced in qemu 0.10 (version 2)
+# @v3:  The extended QCOW2 format as introduced in qemu 1.1 (version 3)
+#
+# Since: 2.12
+##
+{ 'enum': 'BlockdevQcow2Version',
+  'data': [ 'v2', 'v3' ] }
+
+
+##
+# @BlockdevCreateOptionsQcow2:
+#
+# Driver specific image creation options for qcow2.
+#
+# @file             Node to create the image format on
+# @size             Size of the virtual disk in bytes
+# @version          Compatibility level (default: v3)
+# @backing-file     File name of the backing file if a backing file
+#                   should be used
+# @backing-fmt      Name of the block driver to use for the backing file
+# @encrypt          Encryption options if the image should be encrypted
+# @cluster-size     qcow2 cluster size in bytes (default: 65536)
+# @preallocation    Preallocation mode for the new image (default: off)
+# @lazy-refcounts   True if refcounts may be updated lazily (default: off)
+# @refcount-bits    Width of reference counts in bits (default: 16)
+#
+# Since: 2.12
+##
+{ 'struct': 'BlockdevCreateOptionsQcow2',
+  'data': { 'file':             'BlockdevRef',
+            'size':             'size',
+            '*version':         'BlockdevQcow2Version',
+            '*backing-file':    'str',
+            '*backing-fmt':     'BlockdevDriver',
+            '*encrypt':         'QCryptoBlockCreateOptions',
+            '*cluster-size':    'size',
+            '*preallocation':   'PreallocMode',
+            '*lazy-refcounts':  'bool',
+            '*refcount-bits':   'int' } }
+
 ##
 # @BlockdevCreateNotSupported:
 #
@@ -3402,7 +3445,7 @@
       'null-co':        'BlockdevCreateNotSupported',
       'nvme':           'BlockdevCreateNotSupported',
       'parallels':      'BlockdevCreateNotSupported',
-      'qcow2':          'BlockdevCreateNotSupported',
+      'qcow2':          'BlockdevCreateOptionsQcow2',
       'qcow':           'BlockdevCreateNotSupported',
       'qed':            'BlockdevCreateNotSupported',
       'quorum':         'BlockdevCreateNotSupported',