[libvirt PATCH 15/21] conf: Add virDomainDeviceInfo to virDomainIOMMUDef

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This is needed so that IOMMU devices can have addresses.

Existing IOMMU devices (intel-iommu and SMMUv3) are system
devices and as such don't have an address associated to them, but
virtio-iommu is a PCI device and needs one.

Signed-off-by: Andrea Bolognani <abologna@xxxxxxxxxx>
---
 docs/schemas/domaincommon.rng | 63 +++++++++++++++++++----------------
 src/conf/domain_conf.c        | 37 +++++++++++++-------
 src/conf/domain_conf.h        |  1 +
 3 files changed, 60 insertions(+), 41 deletions(-)

diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 2f30b15c48..6dffe3afae 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -5418,35 +5418,40 @@
           <value>virtio</value>
         </choice>
       </attribute>
-      <optional>
-        <element name="driver">
-          <optional>
-            <attribute name="intremap">
-              <ref name="virOnOff"/>
-            </attribute>
-          </optional>
-          <optional>
-            <attribute name="caching_mode">
-              <ref name="virOnOff"/>
-            </attribute>
-          </optional>
-          <optional>
-            <attribute name="eim">
-              <ref name="virOnOff"/>
-            </attribute>
-          </optional>
-          <optional>
-            <attribute name="iotlb">
-              <ref name="virOnOff"/>
-            </attribute>
-          </optional>
-          <optional>
-            <attribute name="aw_bits">
-              <ref name="uint8"/>
-            </attribute>
-          </optional>
-        </element>
-      </optional>
+      <interleave>
+        <optional>
+          <element name="driver">
+            <optional>
+              <attribute name="intremap">
+                <ref name="virOnOff"/>
+              </attribute>
+            </optional>
+            <optional>
+              <attribute name="caching_mode">
+                <ref name="virOnOff"/>
+              </attribute>
+            </optional>
+            <optional>
+              <attribute name="eim">
+                <ref name="virOnOff"/>
+              </attribute>
+            </optional>
+            <optional>
+              <attribute name="iotlb">
+                <ref name="virOnOff"/>
+              </attribute>
+            </optional>
+            <optional>
+              <attribute name="aw_bits">
+                <ref name="uint8"/>
+              </attribute>
+            </optional>
+          </element>
+        </optional>
+        <optional>
+          <ref name="address"/>
+        </optional>
+      </interleave>
     </element>
   </define>
 
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index a2d155069f..3b23c32a96 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -2542,6 +2542,7 @@ virDomainIOMMUDefFree(virDomainIOMMUDef *iommu)
     if (!iommu)
         return;
 
+    virDomainDeviceInfoClear(&iommu->info);
     g_free(iommu);
 }
 
@@ -4230,13 +4231,14 @@ virDomainDeviceGetInfo(virDomainDeviceDef *device)
         return &device->data.panic->info;
     case VIR_DOMAIN_DEVICE_MEMORY:
         return &device->data.memory->info;
+    case VIR_DOMAIN_DEVICE_IOMMU:
+        return &device->data.iommu->info;
     case VIR_DOMAIN_DEVICE_VSOCK:
         return &device->data.vsock->info;
 
     /* The following devices do not contain virDomainDeviceInfo */
     case VIR_DOMAIN_DEVICE_LEASE:
     case VIR_DOMAIN_DEVICE_GRAPHICS:
-    case VIR_DOMAIN_DEVICE_IOMMU:
     case VIR_DOMAIN_DEVICE_AUDIO:
     case VIR_DOMAIN_DEVICE_LAST:
     case VIR_DOMAIN_DEVICE_NONE:
@@ -4532,6 +4534,13 @@ virDomainDeviceInfoIterateFlags(virDomainDef *def,
             return rc;
     }
 
+    device.type = VIR_DOMAIN_DEVICE_IOMMU;
+    if (def->iommu) {
+        device.data.iommu = def->iommu;
+        if ((rc = cb(def, &device, &def->iommu->info, opaque)) != 0)
+            return rc;
+    }
+
     device.type = VIR_DOMAIN_DEVICE_VSOCK;
     if (def->vsock) {
         device.data.vsock = def->vsock;
@@ -4559,12 +4568,6 @@ virDomainDeviceInfoIterateFlags(virDomainDef *def,
             if ((rc = cb(def, &device, NULL, opaque)) != 0)
                 return rc;
         }
-        device.type = VIR_DOMAIN_DEVICE_IOMMU;
-        if (def->iommu) {
-            device.data.iommu = def->iommu;
-            if ((rc = cb(def, &device, NULL, opaque)) != 0)
-                return rc;
-        }
     }
 
     /* Coverity is not very happy with this - all dead_error_condition */
@@ -14933,8 +14936,10 @@ virDomainMemoryDefParseXML(virDomainXMLOption *xmlopt,
 
 
 static virDomainIOMMUDef *
-virDomainIOMMUDefParseXML(xmlNodePtr node,
-                          xmlXPathContextPtr ctxt)
+virDomainIOMMUDefParseXML(virDomainXMLOption *xmlopt,
+                          xmlNodePtr node,
+                          xmlXPathContextPtr ctxt,
+                          unsigned int flags)
 {
     VIR_XPATH_NODE_AUTORESTORE(ctxt)
     xmlNodePtr driver;
@@ -14970,6 +14975,10 @@ virDomainIOMMUDefParseXML(xmlNodePtr node,
             return NULL;
     }
 
+    if (virDomainDeviceInfoParseXML(xmlopt, node, ctxt,
+                                    &iommu->info, flags) < 0)
+        return NULL;
+
     return g_steal_pointer(&iommu);
 }
 
@@ -15167,7 +15176,8 @@ virDomainDeviceDefParse(const char *xmlStr,
             return NULL;
         break;
     case VIR_DOMAIN_DEVICE_IOMMU:
-        if (!(dev->data.iommu = virDomainIOMMUDefParseXML(node, ctxt)))
+        if (!(dev->data.iommu = virDomainIOMMUDefParseXML(xmlopt, node,
+                                                          ctxt, flags)))
             return NULL;
         break;
     case VIR_DOMAIN_DEVICE_VSOCK:
@@ -20285,7 +20295,8 @@ virDomainDefParseXML(xmlXPathContextPtr ctxt,
     }
 
     if (n > 0) {
-        if (!(def->iommu = virDomainIOMMUDefParseXML(nodes[0], ctxt)))
+        if (!(def->iommu = virDomainIOMMUDefParseXML(xmlopt, nodes[0],
+                                                     ctxt, flags)))
             return NULL;
     }
     VIR_FREE(nodes);
@@ -22107,7 +22118,7 @@ virDomainIOMMUDefCheckABIStability(virDomainIOMMUDef *src,
         return false;
     }
 
-    return true;
+    return virDomainDeviceInfoCheckABIStability(&src->info, &dst->info);
 }
 
 
@@ -27494,6 +27505,8 @@ virDomainIOMMUDefFormat(virBuffer *buf,
 
     virXMLFormatElement(&childBuf, "driver", &driverAttrBuf, NULL);
 
+    virDomainDeviceInfoFormat(&childBuf, &iommu->info, 0);
+
     virBufferAsprintf(&attrBuf, " model='%s'",
                       virDomainIOMMUModelTypeToString(iommu->model));
 
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 21e069f42e..1961a686e6 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2708,6 +2708,7 @@ struct _virDomainIOMMUDef {
     virTristateSwitch eim;
     virTristateSwitch iotlb;
     unsigned int aw_bits;
+    virDomainDeviceInfo info;
 };
 
 typedef enum {
-- 
2.31.1




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