This patch implements formating and parsing code for the backing store
schema defined and documented by the previous patch.
This patch does not aim at providing full persistent storage of disk
backing chains yet. The formatter is supposed to provide the backing
chain detected when starting a domain and thus it is not formatted into
an inactive domain XML. The parser is implemented mainly for the purpose
of testing the XML generated by the formatter and thus it does not
distinguish between no backingStore element and an empty backingStore
element. This will have to change once we fully implement support for
user-supplied backing chains.
Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx>
---
src/conf/domain_conf.c | 128 +++++++++++++++++++++
.../qemuxml2argvdata/qemuxml2argv-disk-mirror.xml | 4 +
.../qemuxml2argv-seclabel-static-labelskip.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-boot-grub.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-bridge-ipaddr.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-curmem.xml | 1 +
.../sexpr2xml-disk-block-shareable.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-disk-block.xml | 1 +
.../sexpr2xml-disk-drv-blktap-qcow.xml | 1 +
.../sexpr2xml-disk-drv-blktap-raw.xml | 1 +
.../sexpr2xml-disk-drv-blktap2-raw.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-disk-file.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-fv-autoport.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-empty-kernel.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-force-hpet.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-force-nohpet.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-kernel.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-fv-legacy-vfb.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-net-ioemu.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-net-netfront.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-parallel-tcp.xml | 2 +
.../sexpr2xml-fv-serial-dev-2-ports.xml | 2 +
.../sexpr2xml-fv-serial-dev-2nd-port.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-serial-file.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-serial-null.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-serial-pipe.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-serial-pty.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-serial-stdio.xml | 2 +
.../sexpr2xml-fv-serial-tcp-telnet.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-serial-udp.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-serial-unix.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-sound-all.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-sound.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-utc.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv-v2.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-fv.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-net-bridged.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-net-e1000.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-net-routed.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml | 2 +
tests/sexpr2xmldata/sexpr2xml-pci-devs.xml | 1 +
.../sexpr2xml-pv-bootloader-cmdline.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-pv-bootloader.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-pv-localtime.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-pv-vcpus.xml | 1 +
.../sexpr2xml-pv-vfb-new-vncdisplay.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-pv-vfb-new.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-pv-vfb-orig.xml | 1 +
.../sexpr2xmldata/sexpr2xml-pv-vfb-type-crash.xml | 1 +
tests/sexpr2xmldata/sexpr2xml-pv.xml | 1 +
54 files changed, 211 insertions(+)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 99b57ee..9dbe0af 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -5084,6 +5084,74 @@ virDomainDiskSourceParse(xmlNodePtr node,
}
+static int
+virDomainDiskBackingStoreParse(xmlXPathContextPtr ctxt,
+ virStorageSourcePtr src)
+{
+ virStorageSourcePtr backingStore = NULL;
+ xmlNodePtr save_ctxt = ctxt->node;
+ xmlNodePtr source;
+ char *type = NULL;
+ char *format = NULL;
+ int ret = -1;
+
+ if (!(ctxt->node = virXPathNode("./backingStore[*]", ctxt))) {
+ ret = 0;
+ goto cleanup;
+ }
+
+ if (VIR_ALLOC(backingStore) < 0)
+ goto cleanup;
+
+ if (!(type = virXMLPropString(ctxt->node, "type"))) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("missing disk backing store type"));
+ goto cleanup;
+ }
+
+ backingStore->type = virStorageTypeFromString(type);
+ if (backingStore->type < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unknown disk backing store type '%s'"), type);
+ goto cleanup;
+ }
+
+ if (!(format = virXPathString("string(./format/@type)", ctxt))) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("missing disk backing store format"));
+ goto cleanup;
+ }
+
+ backingStore->format = virStorageFileFormatTypeFromString(format);
+ if (backingStore->format < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unknown disk backing store format '%s'"), format);
+ goto cleanup;
+ }
+
+ if (!(source = virXPathNode("./source", ctxt))) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("missing disk backing store source"));
+ goto cleanup;
+ }
+
+ if (virDomainDiskSourceParse(source, backingStore) < 0 ||
+ virDomainDiskBackingStoreParse(ctxt, backingStore) < 0)
+ goto cleanup;
+
+ src->backingStore = backingStore;
+ ret = 0;
+
+ cleanup:
+ if (ret < 0)
+ virStorageSourceFree(backingStore);
+ VIR_FREE(type);
+ VIR_FREE(format);
+ ctxt->node = save_ctxt;
+ return ret;
+}
+
+
#define VENDOR_LEN 8
#define PRODUCT_LEN 16
@@ -5842,6 +5910,9 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
&& virDomainDiskDefAssignAddress(xmlopt, def) < 0)
goto error;
+ if (virDomainDiskBackingStoreParse(ctxt, &def->src) < 0)
+ goto error;
+
cleanup:
VIR_FREE(bus);
VIR_FREE(type);
@@ -14890,6 +14961,55 @@ virDomainDiskSourceFormat(virBufferPtr buf,
static int
+virDomainDiskBackingStoreFormat(virBufferPtr buf,
+ virStorageSourcePtr backingStore,
+ const char *backingStoreRaw,
+ unsigned int index)
+{
+ const char *type;
+ const char *format;
+
+ if (!backingStore) {
+ if (!backingStoreRaw)
+ virBufferAddLit(buf, "<backingStore/>\n");
+ return 0;
+ }
+
+ if (!backingStore->type ||
+ !(type = virStorageTypeToString(backingStore->type))) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("unexpected disk backing store type %d"),
+ backingStore->type);
+ return -1;
+ }
+
+ if (backingStore->format <= 0 ||
+ !(format = virStorageFileFormatTypeToString(backingStore->format))) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("unexpected disk backing store format %d"),
+ backingStore->format);
+ return -1;
+ }
+
+ virBufferAsprintf(buf, "<backingStore type='%s' index='%u'>\n",
+ type, index);
+ virBufferAdjustIndent(buf, 2);
+
+ virBufferAsprintf(buf, "<format type='%s'/>\n", format);
+ if (virDomainDiskSourceFormat(buf, backingStore, 0, 0) < 0 ||
+ virDomainDiskBackingStoreFormat(buf,
+ backingStore->backingStore,
+ backingStore->backingStoreRaw,
+ index + 1) < 0)
+ return -1;
+
+ virBufferAdjustIndent(buf, -2);
+ virBufferAddLit(buf, "</backingStore>\n");
+ return 0;
+}
+
+
+static int
virDomainDiskDefFormat(virBufferPtr buf,
virDomainDiskDefPtr def,
unsigned int flags)
@@ -15015,6 +15135,14 @@ virDomainDiskDefFormat(virBufferPtr buf,
if (virDomainDiskSourceFormat(buf, &def->src, def->startupPolicy,
flags) < 0)
return -1;
+
+ /* Don't format backingStore to inactive XMLs until the code for
+ * persistent storage of backing chains is ready. */
+ if (!(flags & VIR_DOMAIN_XML_INACTIVE) &&
+ virDomainDiskBackingStoreFormat(buf, def->src.backingStore,
+ def->src.backingStoreRaw, 1) < 0)
+ return -1;
+
virDomainDiskGeometryDefFormat(buf, def);
virDomainDiskBlockIoDefFormat(buf, def);
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-mirror.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-mirror.xml
index aa16a7e..faa0b8c 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-disk-mirror.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-mirror.xml
@@ -16,23 +16,27 @@
<emulator>/usr/bin/qemu</emulator>
<disk type='block' device='disk'>
<source dev='/dev/HostVG/QEMUGuest1'/>
+ <backingStore/>
<mirror file='/dev/HostVG/QEMUGuest1Copy' ready='yes'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='block' device='cdrom'>
<source dev='/dev/HostVG/QEMUGuest2'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
<disk type='file' device='disk'>
<source file='/tmp/data.img'/>
+ <backingStore/>
<mirror file='/tmp/copy.img' format='qcow2'/>
<target dev='vda' bus='virtio'/>
</disk>
<disk type='file' device='disk'>
<source file='/tmp/logs.img'/>
+ <backingStore/>
<target dev='vdb' bus='virtio'/>
</disk>
<controller type='usb' index='0'/>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-seclabel-static-labelskip.xml b/tests/qemuxml2argvdata/qemuxml2argv-seclabel-static-labelskip.xml
index a743448..7978f5b 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-seclabel-static-labelskip.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-seclabel-static-labelskip.xml
@@ -18,6 +18,7 @@
<source dev='/dev/HostVG/QEMUGuest1'>
<seclabel model='selinux' labelskip='yes'/>
</source>
+ <backingStore/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-boot-grub.xml b/tests/sexpr2xmldata/sexpr2xml-boot-grub.xml
index cc3fd48..1220407 100644
--- a/tests/sexpr2xmldata/sexpr2xml-boot-grub.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-boot-grub.xml
@@ -17,6 +17,7 @@
<disk type='block' device='disk'>
<driver name='phy'/>
<source dev='/dev/MainVG/GuestVG'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-bridge-ipaddr.xml b/tests/sexpr2xmldata/sexpr2xml-bridge-ipaddr.xml
index e17e1e5..9b5cc3a 100644
--- a/tests/sexpr2xmldata/sexpr2xml-bridge-ipaddr.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-bridge-ipaddr.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='bridge'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-curmem.xml b/tests/sexpr2xmldata/sexpr2xml-curmem.xml
index 2e68fc4..39d954a 100644
--- a/tests/sexpr2xmldata/sexpr2xml-curmem.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-curmem.xml
@@ -19,6 +19,7 @@
<disk type='file' device='disk'>
<driver name='tap' type='raw'/>
<source file='/xen/rhel5.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='bridge'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-disk-block-shareable.xml b/tests/sexpr2xmldata/sexpr2xml-disk-block-shareable.xml
index 571b349..40e8903 100644
--- a/tests/sexpr2xmldata/sexpr2xml-disk-block-shareable.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-disk-block-shareable.xml
@@ -16,6 +16,7 @@
<disk type='file' device='disk'>
<driver name='tap' type='raw'/>
<source file='/var/lib/xen/images/rhel5pv.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
<shareable/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-disk-block.xml b/tests/sexpr2xmldata/sexpr2xml-disk-block.xml
index 7716576..51e3b3a 100644
--- a/tests/sexpr2xmldata/sexpr2xml-disk-block.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-disk-block.xml
@@ -18,6 +18,7 @@
<disk type='block' device='disk'>
<driver name='phy'/>
<source dev='/dev/MainVG/GuestVG'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap-qcow.xml b/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap-qcow.xml
index 38ae2fe..315c68a 100644
--- a/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap-qcow.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap-qcow.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='tap' type='qcow'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap-raw.xml b/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap-raw.xml
index df8e7ec..c56582d 100644
--- a/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap-raw.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap-raw.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='tap' type='raw'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap2-raw.xml b/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap2-raw.xml
index ea93195..7afc6b5 100644
--- a/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap2-raw.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-disk-drv-blktap2-raw.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='tap2' type='raw'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-disk-file.xml b/tests/sexpr2xmldata/sexpr2xml-disk-file.xml
index 7496539..36b8c1e 100644
--- a/tests/sexpr2xmldata/sexpr2xml-disk-file.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-disk-file.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-autoport.xml b/tests/sexpr2xmldata/sexpr2xml-fv-autoport.xml
index 0f29f03..69fe9ef 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-autoport.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-autoport.xml
@@ -21,11 +21,13 @@
<disk type='block' device='disk'>
<driver name='phy'/>
<source dev='/iscsi/winxp'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/net/heaped/export/netimage/windows/xp-sp2-vol.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-empty-kernel.xml b/tests/sexpr2xmldata/sexpr2xml-fv-empty-kernel.xml
index b5bd19b..3c3147d 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-empty-kernel.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-empty-kernel.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-force-hpet.xml b/tests/sexpr2xmldata/sexpr2xml-fv-force-hpet.xml
index ae056c8..716f16b 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-force-hpet.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-force-hpet.xml
@@ -23,11 +23,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-force-nohpet.xml b/tests/sexpr2xmldata/sexpr2xml-fv-force-nohpet.xml
index 27090be..3dd648b 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-force-nohpet.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-force-nohpet.xml
@@ -23,11 +23,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-kernel.xml b/tests/sexpr2xmldata/sexpr2xml-fv-kernel.xml
index 320835a..29c1335 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-kernel.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-kernel.xml
@@ -19,6 +19,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<serial type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-legacy-vfb.xml b/tests/sexpr2xmldata/sexpr2xml-fv-legacy-vfb.xml
index d28ba98..9c59644 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-legacy-vfb.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-legacy-vfb.xml
@@ -26,6 +26,7 @@
<disk type='block' device='disk'>
<driver name='phy'/>
<source dev='/dev/zvol/dsk/export/s10u4-root'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<input type='mouse' bus='ps2'/>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml b/tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml
index b896e51..67b0b95 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-net-ioemu.xml b/tests/sexpr2xmldata/sexpr2xml-fv-net-ioemu.xml
index 8dda7ff..86b32e9 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-net-ioemu.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-net-ioemu.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-net-netfront.xml b/tests/sexpr2xmldata/sexpr2xml-fv-net-netfront.xml
index 788d319..ed7da80 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-net-netfront.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-net-netfront.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-parallel-tcp.xml b/tests/sexpr2xmldata/sexpr2xml-fv-parallel-tcp.xml
index a9450ec..ed3fde6 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-parallel-tcp.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-parallel-tcp.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml
index f05db8d..7f5a729 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2nd-port.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2nd-port.xml
index 10a331e..10f84dc 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2nd-port.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2nd-port.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-file.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-file.xml
index c1c717e..a3fd231 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-file.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-file.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-null.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-null.xml
index ea19144..b3f77c9 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-null.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-null.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-pipe.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-pipe.xml
index 447d4a3..e217161 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-pipe.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-pipe.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-pty.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-pty.xml
index 328bc45..3ad2264 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-pty.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-pty.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-stdio.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-stdio.xml
index 5a92433..001df56 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-stdio.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-stdio.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp-telnet.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp-telnet.xml
index 1f800bc..c2496fd 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp-telnet.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp-telnet.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp.xml
index 23dabbd..6dc047e 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-tcp.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-udp.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-udp.xml
index 29ba6e5..7ccaeac 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-udp.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-udp.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-serial-unix.xml b/tests/sexpr2xmldata/sexpr2xml-fv-serial-unix.xml
index 0379e0d..b5ad413 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-serial-unix.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-serial-unix.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-sound-all.xml b/tests/sexpr2xmldata/sexpr2xml-fv-sound-all.xml
index 0785041..7183e79 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-sound-all.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-sound-all.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-sound.xml b/tests/sexpr2xmldata/sexpr2xml-fv-sound.xml
index 0785041..7183e79 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-sound.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-sound.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml b/tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml
index b9c2aaf..ae90e33 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml b/tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml
index 44a0867..f81c47a 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-utc.xml b/tests/sexpr2xmldata/sexpr2xml-fv-utc.xml
index 584fbfb..c783d93 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-utc.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-utc.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-v2.xml b/tests/sexpr2xmldata/sexpr2xml-fv-v2.xml
index f910412..bd3b107 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-v2.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-v2.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv.xml b/tests/sexpr2xmldata/sexpr2xml-fv.xml
index 584fbfb..c783d93 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv.xml
@@ -21,11 +21,13 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/foo.img'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='file'/>
<source file='/root/boot.iso'/>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-net-bridged.xml b/tests/sexpr2xmldata/sexpr2xml-net-bridged.xml
index da403bd..ce7954d 100644
--- a/tests/sexpr2xmldata/sexpr2xml-net-bridged.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-net-bridged.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='bridge'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-net-e1000.xml b/tests/sexpr2xmldata/sexpr2xml-net-e1000.xml
index 1ce7067..286209b 100644
--- a/tests/sexpr2xmldata/sexpr2xml-net-e1000.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-net-e1000.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='bridge'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-net-routed.xml b/tests/sexpr2xmldata/sexpr2xml-net-routed.xml
index 3a31f5f..0ab3b6d 100644
--- a/tests/sexpr2xmldata/sexpr2xml-net-routed.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-net-routed.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='ethernet'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml b/tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml
index 055b0d3..00d18ce 100644
--- a/tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml
@@ -23,9 +23,11 @@
<disk type='block' device='disk'>
<driver name='phy'/>
<source dev='/dev/sda8'/>
+ <backingStore/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
+ <backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pci-devs.xml b/tests/sexpr2xmldata/sexpr2xml-pci-devs.xml
index 146b779..a404484 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pci-devs.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pci-devs.xml
@@ -18,6 +18,7 @@
<disk type='block' device='disk'>
<driver name='phy'/>
<source dev='/dev/MainVG/GuestVG'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv-bootloader-cmdline.xml b/tests/sexpr2xmldata/sexpr2xml-pv-bootloader-cmdline.xml
index f0e34f7..0e92d0e 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv-bootloader-cmdline.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv-bootloader-cmdline.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv-bootloader.xml b/tests/sexpr2xmldata/sexpr2xml-pv-bootloader.xml
index 80efe82..bafe97f 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv-bootloader.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv-bootloader.xml
@@ -17,6 +17,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv-localtime.xml b/tests/sexpr2xmldata/sexpr2xml-pv-localtime.xml
index 348049a..fc57fa9 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv-localtime.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv-localtime.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv-vcpus.xml b/tests/sexpr2xmldata/sexpr2xml-pv-vcpus.xml
index 6f7cffc..a55f83e 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv-vcpus.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv-vcpus.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv-vfb-new-vncdisplay.xml b/tests/sexpr2xmldata/sexpr2xml-pv-vfb-new-vncdisplay.xml
index e8c3cda..9ae7bff 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv-vfb-new-vncdisplay.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv-vfb-new-vncdisplay.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv-vfb-new.xml b/tests/sexpr2xmldata/sexpr2xml-pv-vfb-new.xml
index 365d3c9..c2eb798 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv-vfb-new.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv-vfb-new.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv-vfb-orig.xml b/tests/sexpr2xmldata/sexpr2xml-pv-vfb-orig.xml
index 365d3c9..c2eb798 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv-vfb-orig.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv-vfb-orig.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv-vfb-type-crash.xml b/tests/sexpr2xmldata/sexpr2xml-pv-vfb-type-crash.xml
index 5333292..0fee41c 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv-vfb-type-crash.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv-vfb-type-crash.xml
@@ -17,6 +17,7 @@
<disk type='block' device='disk'>
<driver name='phy'/>
<source dev='/dev/vg_dom0test/test2vm'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='bridge'>
diff --git a/tests/sexpr2xmldata/sexpr2xml-pv.xml b/tests/sexpr2xmldata/sexpr2xml-pv.xml
index 7496539..36b8c1e 100644
--- a/tests/sexpr2xmldata/sexpr2xml-pv.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-pv.xml
@@ -18,6 +18,7 @@
<disk type='file' device='disk'>
<driver name='file'/>
<source file='/root/some.img'/>
+ <backingStore/>
<target dev='xvda' bus='xen'/>
</disk>
<console type='pty'>
--
1.9.2
--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list