Signed-off-by: Peter Lieven <p...@kamp.de>
---
qapi/block-core.json | 44 +++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 43 insertions(+), 1 deletion(-)
diff --git a/qapi/block-core.json b/qapi/block-core.json
index f85c223..1574ffb 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -2282,6 +2282,43 @@
'mode': 'Qcow2OverlapCheckMode' } }
##
+# @Qcow2CompressFormat:
+# @zlib: standard zlib deflate compression
+#
+# Since: 2.10
+##
+{ 'enum': 'Qcow2CompressFormat',
+ 'data': [ 'zlib' ] }
+
+##
+# @Qcow2CompressZLib:
+#
+# Since: 2.10
+##
+{ 'struct': 'Qcow2CompressZLib',
+ 'data': { } }
+
+##
+# @Qcow2Compress:
+#
+# Specifies the compression format and compression level that should
+# be used for compressed Qcow2 clusters.
+#
+# @format: specifies the compression format to use. (defaults to zlib)
+#
+# @level: specifies the compression level. 0 = default compression,
+# 1 = fastest compression, x = highest compresion (x may very between
+# different compression formats)
+#
+# Since: 2.10
+##
+{ 'union': 'Qcow2Compress',
+ 'base': { 'format': 'Qcow2CompressFormat',
+ 'level': 'uint8' },
+ 'discriminator': 'format',
+ 'data': { 'zlib': 'Qcow2CompressZLib' } }
+
+##
# @BlockdevOptionsQcow2:
#
# Driver specific block device options for qcow2.
@@ -2316,6 +2353,10 @@
# caches. The interval is in seconds. The default value
# is 0 and it disables this feature (since 2.5)
#
+# @compress: which format and compression level to use for
+# compressed clusters. Defaults to zlib with default
+# compression level (since 2.10)
+#
# Since: 2.9
##
{ 'struct': 'BlockdevOptionsQcow2',
@@ -2328,7 +2369,8 @@
'*cache-size': 'int',
'*l2-cache-size': 'int',
'*refcount-cache-size': 'int',
- '*cache-clean-interval': 'int' } }
+ '*cache-clean-interval': 'int',
+ '*compress': 'Qcow2Compress' } }
##
--
1.9.1
