mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-24 14:45:24 +00:00
31d42506fb
Add <features> and <compat> elements to volume target XML. <compat> is a string which for qcow2 represents the QEMU version it should be compatible with. Valid values are 0.10 and 1.1. 1.1 is implicit if the <features> element is present, otherwise qemu-img default is used. 0.10 can be specified to explicitly create older images after the qemu-img default changes. <features> contains optional features, so far <lazy_refcounts/> is available, which enables caching of reference counters, improving performance for snapshots.
25 lines
653 B
XML
25 lines
653 B
XML
<?xml version="1.0"?>
|
|
<!-- A Relax NG schema for the libvirt volume features XML format -->
|
|
<grammar xmlns="http://relaxng.org/ns/structure/1.0"
|
|
datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
|
|
|
|
<define name='compat'>
|
|
<element name='compat'>
|
|
<data type='string'>
|
|
<param name='pattern'>[0-9]+\.[0-9]+</param>
|
|
</data>
|
|
</element>
|
|
</define>
|
|
<define name='fileFormatFeatures'>
|
|
<element name='features'>
|
|
<interleave>
|
|
<optional>
|
|
<element name='lazy_refcounts'>
|
|
<empty/>
|
|
</element>
|
|
</optional>
|
|
</interleave>
|
|
</element>
|
|
</define>
|
|
</grammar>
|