[PATCHv2 08/15] Add virtio-related options to disks

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https://bugzilla.redhat.com/show_bug.cgi?id=1283251
---
 docs/formatdomain.html.in                                  | 5 +++++
 docs/schemas/domaincommon.rng                              | 1 +
 src/conf/domain_conf.c                                     | 9 +++++++++
 src/conf/domain_conf.h                                     | 1 +
 tests/qemuxml2argvdata/qemuxml2argv-virtio-options.xml     | 4 ++--
 tests/qemuxml2xmloutdata/qemuxml2xmlout-virtio-options.xml | 4 ++--
 6 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index c286f50..6852f49 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -3011,6 +3011,11 @@
             <code>bus</code> and "pci" or "ccw" <code>address</code> types.
             <span class='since'>Since 1.2.8 (QEMU 2.1)</span>
           </li>
+          <li>
+          For virtio disks,
+          <a href="#elementsVirtio">Virtio-specific options</a> can also be
+          set. (<span class="since">Since 3.5.0</span>)
+          </li>
         </ul>
       </dd>
       <dt><code>backenddomain</code></dt>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 5b424c7..a77a04f 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -1770,6 +1770,7 @@
       <optional>
         <ref name="detect_zeroes"/>
       </optional>
+      <ref name="virtioOptions"/>
       <empty/>
     </element>
   </define>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 7744563..92bd1da 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -1731,6 +1731,7 @@ virDomainDiskDefFree(virDomainDiskDefPtr def)
     VIR_FREE(def->product);
     VIR_FREE(def->domain_name);
     VIR_FREE(def->blkdeviotune.group_name);
+    VIR_FREE(def->virtio);
     virDomainDeviceInfoClear(&def->info);
     virObjectUnref(def->privateData);
 
@@ -8404,6 +8405,9 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
         }
     }
 
+    if (virDomainVirtioOptionsParseXML(ctxt, &def->virtio) < 0)
+        goto error;
+
     /* Disk volume types will have authentication information handled in
      * virStorageTranslateDiskSourcePool
      */
@@ -21285,6 +21289,11 @@ virDomainDiskDefFormat(virBufferPtr buf,
         virBufferAsprintf(&driverBuf, " iothread='%u'", def->iothread);
     if (def->detect_zeroes)
         virBufferAsprintf(&driverBuf, " detect_zeroes='%s'", detect_zeroes);
+
+    virBufferAddLit(&driverBuf, " ");
+    virDomainVirtioOptionsFormat(&driverBuf, def->virtio);
+    virBufferTrim(&driverBuf, " ", -1);
+
     if (virBufferUse(&driverBuf)) {
         virBufferAddLit(buf, "<driver");
         virBufferAddBuffer(buf, &driverBuf);
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index a3bb2cf..b43ff3e 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -675,6 +675,7 @@ struct _virDomainDiskDef {
     unsigned int iothread; /* unused = 0, > 0 specific thread # */
     int detect_zeroes; /* enum virDomainDiskDetectZeroes */
     char *domain_name; /* backend domain name */
+    virDomainVirtioOptionsPtr virtio;
 };
 
 
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-virtio-options.xml b/tests/qemuxml2argvdata/qemuxml2argv-virtio-options.xml
index 96ec700..25a524a 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-virtio-options.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-virtio-options.xml
@@ -15,13 +15,13 @@
   <devices>
     <emulator>/usr/bin/qemu-system-x86_64</emulator>
     <disk type='file' device='disk'>
-      <driver name='qemu' type='raw'/>
+      <driver name='qemu' type='raw' iommu_platform='on' ats='on'/>
       <source file='/var/lib/libvirt/images/img1'/>
       <target dev='vda' bus='virtio'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
     </disk>
     <disk type='file' device='disk'>
-      <driver name='qemu' type='raw'/>
+      <driver name='qemu' type='raw' iommu_platform='off' ats='off'/>
       <source file='/var/lib/libvirt/images/img2'/>
       <target dev='vdb' bus='virtio'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-virtio-options.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-virtio-options.xml
index 96ec700..25a524a 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-virtio-options.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-virtio-options.xml
@@ -15,13 +15,13 @@
   <devices>
     <emulator>/usr/bin/qemu-system-x86_64</emulator>
     <disk type='file' device='disk'>
-      <driver name='qemu' type='raw'/>
+      <driver name='qemu' type='raw' iommu_platform='on' ats='on'/>
       <source file='/var/lib/libvirt/images/img1'/>
       <target dev='vda' bus='virtio'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
     </disk>
     <disk type='file' device='disk'>
-      <driver name='qemu' type='raw'/>
+      <driver name='qemu' type='raw' iommu_platform='off' ats='off'/>
       <source file='/var/lib/libvirt/images/img2'/>
       <target dev='vdb' bus='virtio'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
-- 
2.10.2

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