diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index d74bcd96b0..356aed1a0e 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -5435,6 +5435,7 @@ static const struct virQEMUCapsDomainFeatureCapabilityTuple domCapsTuples[] = {
     { VIR_DOMAIN_CAPS_FEATURE_IOTHREADS, QEMU_CAPS_OBJECT_IOTHREAD },
     { VIR_DOMAIN_CAPS_FEATURE_VMCOREINFO, QEMU_CAPS_DEVICE_VMCOREINFO },
     { VIR_DOMAIN_CAPS_FEATURE_GENID, QEMU_CAPS_DEVICE_VMGENID },
+    { VIR_DOMAIN_CAPS_FEATURE_BACKING_STORE_INPUT, QEMU_CAPS_BLOCKDEV },
 };
 
 
diff --git a/tests/domaincapsdata/qemu_1.5.3-q35.x86_64.xml b/tests/domaincapsdata/qemu_1.5.3-q35.x86_64.xml
index 3b0fc826c6..87cb8eb07e 100644
--- a/tests/domaincapsdata/qemu_1.5.3-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.5.3-q35.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_1.5.3-tcg.x86_64.xml b/tests/domaincapsdata/qemu_1.5.3-tcg.x86_64.xml
index de4eef8c73..5588765182 100644
--- a/tests/domaincapsdata/qemu_1.5.3-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.5.3-tcg.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_1.5.3.x86_64.xml b/tests/domaincapsdata/qemu_1.5.3.x86_64.xml
index 22ea4afafe..6bfe903f9a 100644
--- a/tests/domaincapsdata/qemu_1.5.3.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.5.3.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_1.6.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_1.6.0-q35.x86_64.xml
index 5af2d7c80a..f924bf7fad 100644
--- a/tests/domaincapsdata/qemu_1.6.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.6.0-q35.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_1.6.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_1.6.0-tcg.x86_64.xml
index 0759ef3ce3..be8921cfa9 100644
--- a/tests/domaincapsdata/qemu_1.6.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.6.0-tcg.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_1.6.0.x86_64.xml b/tests/domaincapsdata/qemu_1.6.0.x86_64.xml
index aa3d7c93b8..04f532cb3e 100644
--- a/tests/domaincapsdata/qemu_1.6.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.6.0.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_1.7.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_1.7.0-q35.x86_64.xml
index a189e1ab9a..294cceff2f 100644
--- a/tests/domaincapsdata/qemu_1.7.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.7.0-q35.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_1.7.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_1.7.0-tcg.x86_64.xml
index cdd0d6bf49..04d7c26bd5 100644
--- a/tests/domaincapsdata/qemu_1.7.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.7.0-tcg.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_1.7.0.x86_64.xml b/tests/domaincapsdata/qemu_1.7.0.x86_64.xml
index 2c73c99d35..c00e492784 100644
--- a/tests/domaincapsdata/qemu_1.7.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_1.7.0.x86_64.xml
@@ -130,6 +130,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.1.1-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.1.1-q35.x86_64.xml
index 40611dbcf7..7190a0ec9a 100644
--- a/tests/domaincapsdata/qemu_2.1.1-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.1.1-q35.x86_64.xml
@@ -131,6 +131,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.1.1-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.1.1-tcg.x86_64.xml
index a5a77d956d..8251017d40 100644
--- a/tests/domaincapsdata/qemu_2.1.1-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.1.1-tcg.x86_64.xml
@@ -131,6 +131,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.1.1.x86_64.xml b/tests/domaincapsdata/qemu_2.1.1.x86_64.xml
index 45de452b17..2dcb90c66e 100644
--- a/tests/domaincapsdata/qemu_2.1.1.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.1.1.x86_64.xml
@@ -131,6 +131,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.10.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.10.0-q35.x86_64.xml
index 8abcac894b..ec044791bd 100644
--- a/tests/domaincapsdata/qemu_2.10.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.10.0-q35.x86_64.xml
@@ -154,6 +154,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.10.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.10.0-tcg.x86_64.xml
index 620c7b86d2..e024d9c571 100644
--- a/tests/domaincapsdata/qemu_2.10.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.10.0-tcg.x86_64.xml
@@ -173,6 +173,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.10.0-virt.aarch64.xml b/tests/domaincapsdata/qemu_2.10.0-virt.aarch64.xml
index f48ce884bf..490a1d4a5b 100644
--- a/tests/domaincapsdata/qemu_2.10.0-virt.aarch64.xml
+++ b/tests/domaincapsdata/qemu_2.10.0-virt.aarch64.xml
@@ -138,6 +138,7 @@
     </gic>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.10.0.aarch64.xml b/tests/domaincapsdata/qemu_2.10.0.aarch64.xml
index 167fdb2d4e..00d8cc8625 100644
--- a/tests/domaincapsdata/qemu_2.10.0.aarch64.xml
+++ b/tests/domaincapsdata/qemu_2.10.0.aarch64.xml
@@ -132,6 +132,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.10.0.ppc64.xml b/tests/domaincapsdata/qemu_2.10.0.ppc64.xml
index 2378a626b4..9a0ba5d6dd 100644
--- a/tests/domaincapsdata/qemu_2.10.0.ppc64.xml
+++ b/tests/domaincapsdata/qemu_2.10.0.ppc64.xml
@@ -104,6 +104,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.10.0.s390x.xml b/tests/domaincapsdata/qemu_2.10.0.s390x.xml
index bb565558fb..e551ed03c5 100644
--- a/tests/domaincapsdata/qemu_2.10.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_2.10.0.s390x.xml
@@ -194,6 +194,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.10.0.x86_64.xml b/tests/domaincapsdata/qemu_2.10.0.x86_64.xml
index ed77920e67..872ea80869 100644
--- a/tests/domaincapsdata/qemu_2.10.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.10.0.x86_64.xml
@@ -154,6 +154,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.11.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.11.0-q35.x86_64.xml
index 9c3348df26..21cafab70e 100644
--- a/tests/domaincapsdata/qemu_2.11.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.11.0-q35.x86_64.xml
@@ -152,6 +152,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.11.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.11.0-tcg.x86_64.xml
index bedafca8d9..98a7e4bfbe 100644
--- a/tests/domaincapsdata/qemu_2.11.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.11.0-tcg.x86_64.xml
@@ -168,6 +168,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.11.0.s390x.xml b/tests/domaincapsdata/qemu_2.11.0.s390x.xml
index 3888428b50..e93cf3ffcc 100644
--- a/tests/domaincapsdata/qemu_2.11.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_2.11.0.s390x.xml
@@ -193,6 +193,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.11.0.x86_64.xml b/tests/domaincapsdata/qemu_2.11.0.x86_64.xml
index 2e2dc1adcb..0a6f417306 100644
--- a/tests/domaincapsdata/qemu_2.11.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.11.0.x86_64.xml
@@ -152,6 +152,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.12.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.12.0-q35.x86_64.xml
index d330d61a9d..451c69200d 100644
--- a/tests/domaincapsdata/qemu_2.12.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.12.0-q35.x86_64.xml
@@ -165,6 +165,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='yes'>
       <cbitpos>47</cbitpos>
       <reducedPhysBits>1</reducedPhysBits>
diff --git a/tests/domaincapsdata/qemu_2.12.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.12.0-tcg.x86_64.xml
index 846b62a896..3eb821966b 100644
--- a/tests/domaincapsdata/qemu_2.12.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.12.0-tcg.x86_64.xml
@@ -179,6 +179,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='yes'>
       <cbitpos>47</cbitpos>
       <reducedPhysBits>1</reducedPhysBits>
diff --git a/tests/domaincapsdata/qemu_2.12.0-virt.aarch64.xml b/tests/domaincapsdata/qemu_2.12.0-virt.aarch64.xml
index d5bb85878d..ba23d2e357 100644
--- a/tests/domaincapsdata/qemu_2.12.0-virt.aarch64.xml
+++ b/tests/domaincapsdata/qemu_2.12.0-virt.aarch64.xml
@@ -140,6 +140,7 @@
     </gic>
     <vmcoreinfo supported='yes'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.12.0.aarch64.xml b/tests/domaincapsdata/qemu_2.12.0.aarch64.xml
index 4a9cd0b652..06348366e1 100644
--- a/tests/domaincapsdata/qemu_2.12.0.aarch64.xml
+++ b/tests/domaincapsdata/qemu_2.12.0.aarch64.xml
@@ -134,6 +134,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.12.0.ppc64.xml b/tests/domaincapsdata/qemu_2.12.0.ppc64.xml
index b9d51e1752..8c02295d57 100644
--- a/tests/domaincapsdata/qemu_2.12.0.ppc64.xml
+++ b/tests/domaincapsdata/qemu_2.12.0.ppc64.xml
@@ -104,6 +104,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.12.0.s390x.xml b/tests/domaincapsdata/qemu_2.12.0.s390x.xml
index 9b8e90671d..d25b458608 100644
--- a/tests/domaincapsdata/qemu_2.12.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_2.12.0.s390x.xml
@@ -192,6 +192,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.12.0.x86_64.xml b/tests/domaincapsdata/qemu_2.12.0.x86_64.xml
index 828aa03ed2..5fe2c0637b 100644
--- a/tests/domaincapsdata/qemu_2.12.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.12.0.x86_64.xml
@@ -165,6 +165,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='yes'>
       <cbitpos>47</cbitpos>
       <reducedPhysBits>1</reducedPhysBits>
diff --git a/tests/domaincapsdata/qemu_2.4.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.4.0-q35.x86_64.xml
index b846965261..84adbef31a 100644
--- a/tests/domaincapsdata/qemu_2.4.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.4.0-q35.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.4.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.4.0-tcg.x86_64.xml
index 5803be807f..8f3d11aa65 100644
--- a/tests/domaincapsdata/qemu_2.4.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.4.0-tcg.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.4.0.x86_64.xml b/tests/domaincapsdata/qemu_2.4.0.x86_64.xml
index 6c3185cef6..69e27d4474 100644
--- a/tests/domaincapsdata/qemu_2.4.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.4.0.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.5.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.5.0-q35.x86_64.xml
index da5648f984..6ec0f26a67 100644
--- a/tests/domaincapsdata/qemu_2.5.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.5.0-q35.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.5.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.5.0-tcg.x86_64.xml
index 279c0cd543..5f731ba6a5 100644
--- a/tests/domaincapsdata/qemu_2.5.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.5.0-tcg.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.5.0.x86_64.xml b/tests/domaincapsdata/qemu_2.5.0.x86_64.xml
index 6f01005846..8442a70c8e 100644
--- a/tests/domaincapsdata/qemu_2.5.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.5.0.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.6.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.6.0-q35.x86_64.xml
index cc4c404ad0..ab67d42be5 100644
--- a/tests/domaincapsdata/qemu_2.6.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.6.0-q35.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.6.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.6.0-tcg.x86_64.xml
index 906be148ef..a279fdec76 100644
--- a/tests/domaincapsdata/qemu_2.6.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.6.0-tcg.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.6.0-virt.aarch64.xml b/tests/domaincapsdata/qemu_2.6.0-virt.aarch64.xml
index ee76cb2e83..90e38a0836 100644
--- a/tests/domaincapsdata/qemu_2.6.0-virt.aarch64.xml
+++ b/tests/domaincapsdata/qemu_2.6.0-virt.aarch64.xml
@@ -137,6 +137,7 @@
     </gic>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.6.0.aarch64.xml b/tests/domaincapsdata/qemu_2.6.0.aarch64.xml
index a3ada3a6a5..724202dabc 100644
--- a/tests/domaincapsdata/qemu_2.6.0.aarch64.xml
+++ b/tests/domaincapsdata/qemu_2.6.0.aarch64.xml
@@ -131,6 +131,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.6.0.ppc64.xml b/tests/domaincapsdata/qemu_2.6.0.ppc64.xml
index a4dd2a51cc..107102efbe 100644
--- a/tests/domaincapsdata/qemu_2.6.0.ppc64.xml
+++ b/tests/domaincapsdata/qemu_2.6.0.ppc64.xml
@@ -104,6 +104,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.6.0.x86_64.xml b/tests/domaincapsdata/qemu_2.6.0.x86_64.xml
index 26b569d914..fd3160c4ea 100644
--- a/tests/domaincapsdata/qemu_2.6.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.6.0.x86_64.xml
@@ -139,6 +139,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.7.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.7.0-q35.x86_64.xml
index dd8714e61b..a00a49b1b4 100644
--- a/tests/domaincapsdata/qemu_2.7.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.7.0-q35.x86_64.xml
@@ -140,6 +140,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.7.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.7.0-tcg.x86_64.xml
index c2c46d190f..e7a7941294 100644
--- a/tests/domaincapsdata/qemu_2.7.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.7.0-tcg.x86_64.xml
@@ -140,6 +140,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.7.0.s390x.xml b/tests/domaincapsdata/qemu_2.7.0.s390x.xml
index a1e282482c..ad48c732b4 100644
--- a/tests/domaincapsdata/qemu_2.7.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_2.7.0.s390x.xml
@@ -97,6 +97,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.7.0.x86_64.xml b/tests/domaincapsdata/qemu_2.7.0.x86_64.xml
index 2e7ae2f100..f816468139 100644
--- a/tests/domaincapsdata/qemu_2.7.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.7.0.x86_64.xml
@@ -140,6 +140,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.8.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.8.0-q35.x86_64.xml
index 4e7e811d8f..c75dd6736e 100644
--- a/tests/domaincapsdata/qemu_2.8.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.8.0-q35.x86_64.xml
@@ -140,6 +140,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.8.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.8.0-tcg.x86_64.xml
index 38db60a748..20964973b6 100644
--- a/tests/domaincapsdata/qemu_2.8.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.8.0-tcg.x86_64.xml
@@ -140,6 +140,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.8.0.s390x.xml b/tests/domaincapsdata/qemu_2.8.0.s390x.xml
index dec4ca960b..103e1f7980 100644
--- a/tests/domaincapsdata/qemu_2.8.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_2.8.0.s390x.xml
@@ -178,6 +178,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.8.0.x86_64.xml b/tests/domaincapsdata/qemu_2.8.0.x86_64.xml
index 057aac246f..935e0e9afe 100644
--- a/tests/domaincapsdata/qemu_2.8.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.8.0.x86_64.xml
@@ -140,6 +140,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.9.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_2.9.0-q35.x86_64.xml
index ad894728ea..4d0e145976 100644
--- a/tests/domaincapsdata/qemu_2.9.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.9.0-q35.x86_64.xml
@@ -149,6 +149,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.9.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_2.9.0-tcg.x86_64.xml
index 3cc81e9fa1..bf83709d89 100644
--- a/tests/domaincapsdata/qemu_2.9.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.9.0-tcg.x86_64.xml
@@ -172,6 +172,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.9.0.ppc64.xml b/tests/domaincapsdata/qemu_2.9.0.ppc64.xml
index 69b6ebe8a6..1e85f0bdfd 100644
--- a/tests/domaincapsdata/qemu_2.9.0.ppc64.xml
+++ b/tests/domaincapsdata/qemu_2.9.0.ppc64.xml
@@ -104,6 +104,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.9.0.s390x.xml b/tests/domaincapsdata/qemu_2.9.0.s390x.xml
index 294e6a1be6..1477ca9487 100644
--- a/tests/domaincapsdata/qemu_2.9.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_2.9.0.s390x.xml
@@ -179,6 +179,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_2.9.0.x86_64.xml b/tests/domaincapsdata/qemu_2.9.0.x86_64.xml
index 790b39bd7d..c044b46c21 100644
--- a/tests/domaincapsdata/qemu_2.9.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_2.9.0.x86_64.xml
@@ -149,6 +149,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.0.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_3.0.0-q35.x86_64.xml
index f4130f659f..124a460f41 100644
--- a/tests/domaincapsdata/qemu_3.0.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_3.0.0-q35.x86_64.xml
@@ -166,6 +166,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.0.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_3.0.0-tcg.x86_64.xml
index 2c4c61758c..0dfbb3471b 100644
--- a/tests/domaincapsdata/qemu_3.0.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_3.0.0-tcg.x86_64.xml
@@ -181,6 +181,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.0.0.ppc64.xml b/tests/domaincapsdata/qemu_3.0.0.ppc64.xml
index 48865824a3..e3acde93d4 100644
--- a/tests/domaincapsdata/qemu_3.0.0.ppc64.xml
+++ b/tests/domaincapsdata/qemu_3.0.0.ppc64.xml
@@ -106,6 +106,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.0.0.s390x.xml b/tests/domaincapsdata/qemu_3.0.0.s390x.xml
index 55b442ced8..850acf905c 100644
--- a/tests/domaincapsdata/qemu_3.0.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_3.0.0.s390x.xml
@@ -199,6 +199,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.0.0.x86_64.xml b/tests/domaincapsdata/qemu_3.0.0.x86_64.xml
index 162758eb2b..18212faad8 100644
--- a/tests/domaincapsdata/qemu_3.0.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_3.0.0.x86_64.xml
@@ -166,6 +166,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.1.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_3.1.0-q35.x86_64.xml
index ba9bbcc839..db00c67571 100644
--- a/tests/domaincapsdata/qemu_3.1.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_3.1.0-q35.x86_64.xml
@@ -169,6 +169,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.1.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_3.1.0-tcg.x86_64.xml
index 5527adb558..b3ef9e6c7e 100644
--- a/tests/domaincapsdata/qemu_3.1.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_3.1.0-tcg.x86_64.xml
@@ -184,6 +184,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.1.0.ppc64.xml b/tests/domaincapsdata/qemu_3.1.0.ppc64.xml
index 72e4d8b5f3..6f1aef4e12 100644
--- a/tests/domaincapsdata/qemu_3.1.0.ppc64.xml
+++ b/tests/domaincapsdata/qemu_3.1.0.ppc64.xml
@@ -106,6 +106,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_3.1.0.x86_64.xml b/tests/domaincapsdata/qemu_3.1.0.x86_64.xml
index 5a121eb987..a9dde532e7 100644
--- a/tests/domaincapsdata/qemu_3.1.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_3.1.0.x86_64.xml
@@ -169,6 +169,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.0.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_4.0.0-q35.x86_64.xml
index dba8c3a8b2..57eb49362c 100644
--- a/tests/domaincapsdata/qemu_4.0.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.0.0-q35.x86_64.xml
@@ -169,6 +169,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.0.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_4.0.0-tcg.x86_64.xml
index 6bec4dbfc9..5884defc41 100644
--- a/tests/domaincapsdata/qemu_4.0.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.0.0-tcg.x86_64.xml
@@ -184,6 +184,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.0.0-virt.aarch64.xml b/tests/domaincapsdata/qemu_4.0.0-virt.aarch64.xml
index f4c51ebfc7..c2d77a9dc0 100644
--- a/tests/domaincapsdata/qemu_4.0.0-virt.aarch64.xml
+++ b/tests/domaincapsdata/qemu_4.0.0-virt.aarch64.xml
@@ -147,6 +147,7 @@
     </gic>
     <vmcoreinfo supported='yes'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.0.0.aarch64.xml b/tests/domaincapsdata/qemu_4.0.0.aarch64.xml
index ba3634fe4a..218b9d7c0e 100644
--- a/tests/domaincapsdata/qemu_4.0.0.aarch64.xml
+++ b/tests/domaincapsdata/qemu_4.0.0.aarch64.xml
@@ -141,6 +141,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.0.0.ppc64.xml b/tests/domaincapsdata/qemu_4.0.0.ppc64.xml
index bcad78ebd3..8de62bc781 100644
--- a/tests/domaincapsdata/qemu_4.0.0.ppc64.xml
+++ b/tests/domaincapsdata/qemu_4.0.0.ppc64.xml
@@ -107,6 +107,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.0.0.s390x.xml b/tests/domaincapsdata/qemu_4.0.0.s390x.xml
index 6cda114260..09c5286919 100644
--- a/tests/domaincapsdata/qemu_4.0.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_4.0.0.s390x.xml
@@ -204,6 +204,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.0.0.x86_64.xml b/tests/domaincapsdata/qemu_4.0.0.x86_64.xml
index 00bf7d1ec3..cfa58caa4f 100644
--- a/tests/domaincapsdata/qemu_4.0.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.0.0.x86_64.xml
@@ -169,6 +169,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.1.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_4.1.0-q35.x86_64.xml
index c87c6ea73f..463db0c72d 100644
--- a/tests/domaincapsdata/qemu_4.1.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.1.0-q35.x86_64.xml
@@ -173,6 +173,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.1.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_4.1.0-tcg.x86_64.xml
index 9b03dac9f0..611c67a2a3 100644
--- a/tests/domaincapsdata/qemu_4.1.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.1.0-tcg.x86_64.xml
@@ -184,6 +184,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.1.0.x86_64.xml b/tests/domaincapsdata/qemu_4.1.0.x86_64.xml
index 97533c6d05..629d47a0d5 100644
--- a/tests/domaincapsdata/qemu_4.1.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.1.0.x86_64.xml
@@ -173,6 +173,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.2.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_4.2.0-q35.x86_64.xml
index 5fbba2c5da..50b846c9f4 100644
--- a/tests/domaincapsdata/qemu_4.2.0-q35.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.2.0-q35.x86_64.xml
@@ -173,6 +173,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.2.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_4.2.0-tcg.x86_64.xml
index de576d5949..c9480f3530 100644
--- a/tests/domaincapsdata/qemu_4.2.0-tcg.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.2.0-tcg.x86_64.xml
@@ -184,6 +184,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.2.0-virt.aarch64.xml b/tests/domaincapsdata/qemu_4.2.0-virt.aarch64.xml
index 033f8a7df4..837dcff0d9 100644
--- a/tests/domaincapsdata/qemu_4.2.0-virt.aarch64.xml
+++ b/tests/domaincapsdata/qemu_4.2.0-virt.aarch64.xml
@@ -147,6 +147,7 @@
     </gic>
     <vmcoreinfo supported='yes'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.2.0.aarch64.xml b/tests/domaincapsdata/qemu_4.2.0.aarch64.xml
index ba3634fe4a..218b9d7c0e 100644
--- a/tests/domaincapsdata/qemu_4.2.0.aarch64.xml
+++ b/tests/domaincapsdata/qemu_4.2.0.aarch64.xml
@@ -141,6 +141,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.2.0.ppc64.xml b/tests/domaincapsdata/qemu_4.2.0.ppc64.xml
index df7a06c690..d77e88ab24 100644
--- a/tests/domaincapsdata/qemu_4.2.0.ppc64.xml
+++ b/tests/domaincapsdata/qemu_4.2.0.ppc64.xml
@@ -107,6 +107,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.2.0.s390x.xml b/tests/domaincapsdata/qemu_4.2.0.s390x.xml
index 88ac618a1d..e787df4d70 100644
--- a/tests/domaincapsdata/qemu_4.2.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_4.2.0.s390x.xml
@@ -198,6 +198,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='no'/>
     <genid supported='no'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>
diff --git a/tests/domaincapsdata/qemu_4.2.0.x86_64.xml b/tests/domaincapsdata/qemu_4.2.0.x86_64.xml
index 7938433ed9..4df4667464 100644
--- a/tests/domaincapsdata/qemu_4.2.0.x86_64.xml
+++ b/tests/domaincapsdata/qemu_4.2.0.x86_64.xml
@@ -173,6 +173,7 @@
     <gic supported='no'/>
     <vmcoreinfo supported='yes'/>
     <genid supported='yes'/>
+    <backingStoreInput supported='no'/>
     <sev supported='no'/>
   </features>
 </domainCapabilities>