diff --git a/docs/formatdomaincaps.html.in b/docs/formatdomaincaps.html.in
index c424107..b87a45a 100644
--- a/docs/formatdomaincaps.html.in
+++ b/docs/formatdomaincaps.html.in
@@ -268,6 +268,10 @@
         &lt;value&gt;qxl&lt;/value&gt;
         &lt;value&gt;virtio&lt;/value&gt;
       &lt;/enum&gt;
+      &lt;enum name='virtioAccel3D'&gt;
+        &lt;value&gt;yes&lt;/value&gt;
+        &lt;value&gt;no&lt;/value&gt;
+      &lt;/enum&gt;
     &lt;/video&gt;
     ...
   &lt;/devices&gt;
@@ -278,6 +282,11 @@
       <dt><code>modelType</code></dt>
       <dd>Options for the <code>type</code> attribute of the
       &lt;video&gt;&lt;model&gt; element.</dd>
+
+      <dt><code>spiceGL</code></dt>
+      <dd>Options for the <code>accel3D</code> attribute of the
+      &lt;video&gt;&lt;model type='virtio'/&gt;&lt;acceleration/&gt;
+      element.</dd>
     </dl>
 
 
diff --git a/src/conf/domain_capabilities.c b/src/conf/domain_capabilities.c
index 344955c..b5715d4 100644
--- a/src/conf/domain_capabilities.c
+++ b/src/conf/domain_capabilities.c
@@ -266,6 +266,7 @@ virDomainCapsDeviceVideoFormat(virBufferPtr buf,
     FORMAT_PROLOGUE(video);
 
     ENUM_PROCESS(video, modelType, virDomainVideoTypeToString);
+    ENUM_PROCESS(video, virtioAccel3D, virTristateBoolTypeToString);
 
     FORMAT_EPILOGUE(video);
 }
diff --git a/src/conf/domain_capabilities.h b/src/conf/domain_capabilities.h
index 916dba0..0501e99 100644
--- a/src/conf/domain_capabilities.h
+++ b/src/conf/domain_capabilities.h
@@ -82,6 +82,8 @@ typedef virDomainCapsDeviceVideo *virDomainCapsDeviceVideoPtr;
 struct _virDomainCapsDeviceVideo {
     bool supported;
     virDomainCapsEnum modelType;   /* virDomainVideoType */
+    virDomainCapsEnum virtioAccel3D;   /* tristate for type=virtio
+                                          <acceleration accel3d=X/> */
 };
 
 typedef struct _virDomainCapsDeviceHostdev virDomainCapsDeviceHostdev;
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index f228f4f..511faee 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4208,6 +4208,10 @@ virQEMUCapsFillDomainDeviceVideoCaps(virQEMUCapsPtr qemuCaps,
     if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU))
         VIR_DOMAIN_CAPS_ENUM_SET(dev->modelType, VIR_DOMAIN_VIDEO_TYPE_VIRTIO);
 
+    VIR_DOMAIN_CAPS_ENUM_SET(dev->virtioAccel3D, VIR_TRISTATE_BOOL_NO);
+    if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU_VIRGL))
+        VIR_DOMAIN_CAPS_ENUM_SET(dev->virtioAccel3D, VIR_TRISTATE_BOOL_YES);
+
     return 0;
 }
 
diff --git a/tests/domaincapsschemadata/domaincaps-full.xml b/tests/domaincapsschemadata/domaincaps-full.xml
index 4eb5637..568f452 100644
--- a/tests/domaincapsschemadata/domaincaps-full.xml
+++ b/tests/domaincapsschemadata/domaincaps-full.xml
@@ -64,6 +64,11 @@
         <value>parallels</value>
         <value>virtio</value>
       </enum>
+      <enum name='virtioAccel3D'>
+        <value>default</value>
+        <value>yes</value>
+        <value>no</value>
+      </enum>
     </video>
     <hostdev supported='yes'>
       <enum name='mode'>
diff --git a/tests/domaincapsschemadata/domaincaps-qemu_1.6.50-1.xml b/tests/domaincapsschemadata/domaincaps-qemu_1.6.50-1.xml
index 6213297..f287a22 100644
--- a/tests/domaincapsschemadata/domaincaps-qemu_1.6.50-1.xml
+++ b/tests/domaincapsschemadata/domaincaps-qemu_1.6.50-1.xml
@@ -51,6 +51,9 @@
         <value>vmvga</value>
         <value>qxl</value>
       </enum>
+      <enum name='virtioAccel3D'>
+        <value>no</value>
+      </enum>
     </video>
     <hostdev supported='yes'>
       <enum name='mode'>
diff --git a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-1.xml b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-1.xml
index 2a1477f..7182b3d 100644
--- a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-1.xml
+++ b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-1.xml
@@ -53,6 +53,10 @@
         <value>qxl</value>
         <value>virtio</value>
       </enum>
+      <enum name='virtioAccel3D'>
+        <value>yes</value>
+        <value>no</value>
+      </enum>
     </video>
     <hostdev supported='yes'>
       <enum name='mode'>
diff --git a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-2.xml b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-2.xml
index 4349998..64d4c03 100644
--- a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-2.xml
+++ b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-2.xml
@@ -49,6 +49,9 @@
         <value>qxl</value>
         <value>virtio</value>
       </enum>
+      <enum name='virtioAccel3D'>
+        <value>no</value>
+      </enum>
     </video>
     <hostdev supported='yes'>
       <enum name='mode'>
diff --git a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-3.xml b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-3.xml
index 27173c4..c019ac4 100644
--- a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-3.xml
+++ b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-3.xml
@@ -49,6 +49,9 @@
         <value>qxl</value>
         <value>virtio</value>
       </enum>
+      <enum name='virtioAccel3D'>
+        <value>no</value>
+      </enum>
     </video>
     <hostdev supported='yes'>
       <enum name='mode'>
diff --git a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-4.xml b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-4.xml
index d7d81b5..539545b 100644
--- a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-4.xml
+++ b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-4.xml
@@ -49,6 +49,9 @@
         <value>qxl</value>
         <value>virtio</value>
       </enum>
+      <enum name='virtioAccel3D'>
+        <value>no</value>
+      </enum>
     </video>
     <hostdev supported='yes'>
       <enum name='mode'>
diff --git a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-5.xml b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-5.xml
index 51c5615..454233f 100644
--- a/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-5.xml
+++ b/tests/domaincapsschemadata/domaincaps-qemu_2.6.0-5.xml
@@ -47,6 +47,9 @@
         <value>qxl</value>
         <value>virtio</value>
       </enum>
+      <enum name='virtioAccel3D'>
+        <value>no</value>
+      </enum>
     </video>
     <hostdev supported='yes'>
       <enum name='mode'>
diff --git a/tests/domaincapstest.c b/tests/domaincapstest.c
index 1b62781..ba34a08 100644
--- a/tests/domaincapstest.c
+++ b/tests/domaincapstest.c
@@ -87,6 +87,7 @@ fillAllCaps(virDomainCapsPtr domCaps)
 
     video->supported = true;
     SET_ALL_BITS(video->modelType);
+    SET_ALL_BITS(video->virtioAccel3D);
 
     hostdev->supported = true;
     SET_ALL_BITS(hostdev->mode);
