diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 572d7eeeca..27fd458fe5 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -2257,13 +2257,13 @@
 
     <h4><a name="elementsHostDev">Host device assignment</a></h4>
 
-    <h5><a href="elementsHostDevSubsys">USB / PCI devices</a></h5>
+    <h5><a href="elementsHostDevSubsys">USB / PCI / SCSI devices</a></h5>
 
     <p>
-      USB and PCI devices attached to the host can be passed through
+      USB, PCI and SCSI devices attached to the host can be passed through
       to the guest using the <code>hostdev</code> element.
-      <span class="since">since after 0.4.4 for USB and 0.6.0 for PCI
-        (KVM only)</span>:
+      <span class="since">since after 0.4.4 for USB, 0.6.0 for PCI(KVM only)
+        and 1.0.6 for SCSI(KVM only)</span>:
     </p>
 
 <pre>
@@ -2292,14 +2292,31 @@
       &lt;rom bar='on' file='/etc/fake/boot.bin'/&gt;
     &lt;/hostdev&gt;
   &lt;/devices&gt;
+  ...</pre>
+
+    <p>or:</p>
+
+<pre>
+  ...
+  &lt;devices&gt;
+    &lt;hostdev mode='subsystem' type='scsi'&gt;
+      &lt;source&gt;
+        &lt;adapter name='scsi_host0'/&gt;
+        &lt;address type='scsi' bus='0' target='0' unit='0'/&gt;
+      &lt;/source&gt;
+      &lt;readonly/&gt;
+      &lt;address type='drive' controller='0' bus='0' target='0' unit='0'/&gt;
+    &lt;/hostdev&gt;
+  &lt;/devices&gt;
   ...</pre>
 
     <dl>
       <dt><code>hostdev</code></dt>
       <dd>The <code>hostdev</code> element is the main container for describing
         host devices. For usb device passthrough <code>mode</code> is always
-        "subsystem" and <code>type</code> is "usb" for a USB device and "pci"
-        for a PCI device. When <code>managed</code> is "yes" for a PCI
+        "subsystem" and <code>type</code> is "usb" for a USB device, "pci"
+        for a PCI device and "scsi" for a SCSI device. When
+        <code>managed</code> is "yes" for a PCI
         device, it is detached from the host before being passed on to
         the guest, and reattached to the host after the guest exits.
         If <code>managed</code> is omitted or "no", and for USB
@@ -2309,13 +2326,16 @@
         hot-plugging the device,
         and <code>virNodeDeviceReAttach</code> (or <code>virsh
         nodedev-reattach</code>) after hot-unplug or stopping the
-        guest.</dd>
+        guest. For SCSI device, user is responsible to make sure the device
+        is not used by host.</dd>
       <dt><code>source</code></dt>
       <dd>The source element describes the device as seen from the host.
       The USB device can either be addressed by vendor / product id using the
       <code>vendor</code> and <code>product</code> elements or by the device's
       address on the hosts using the <code>address</code> element. PCI devices
       on the other hand can only be described by their <code>address</code>.
+      SCSI devices are described by both the <code>adapter</code> and
+      <code>address</code> elements.
 
       <span class="since">Since 1.0.0</span>, the <code>source</code> element
       of USB devices may contain <code>startupPolicy</code> attribute which can
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 10596dc0c0..6a4b77aa13 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -3094,6 +3094,7 @@
     <choice>
       <ref name="hostdevsubsyspci"/>
       <ref name="hostdevsubsysusb"/>
+      <ref name="hostdevsubsysscsi"/>
     </choice>
   </define>
 
@@ -3162,6 +3163,20 @@
     </element>
   </define>
 
+  <define name="hostdevsubsysscsi">
+    <attribute name="type">
+      <value>scsi</value>
+    </attribute>
+    <element name="source">
+      <interleave>
+        <ref name="sourceinfoadapter"/>
+        <element name="address">
+          <ref name="scsiaddress"/>
+        </element>
+      </interleave>
+    </element>
+  </define>
+
   <define name="hostdevcapsstorage">
     <attribute name="type">
       <value>storage</value>
@@ -3217,6 +3232,17 @@
       </attribute>
     </element>
   </define>
+  <define name="scsiaddress">
+    <attribute name="bus">
+      <ref name="driveBus"/>
+    </attribute>
+    <attribute name="target">
+      <ref name="driveTarget"/>
+    </attribute>
+    <attribute name="unit">
+      <ref name="driveUnit"/>
+    </attribute>
+  </define>
   <define name="usbportaddress">
     <attribute name="bus">
       <ref name="usbAddr"/>
diff --git a/src/conf/domain_audit.c b/src/conf/domain_audit.c
index 40910d679f..a6cefb2e85 100644
--- a/src/conf/domain_audit.c
+++ b/src/conf/domain_audit.c
@@ -399,6 +399,16 @@ virDomainAuditHostdev(virDomainObjPtr vm, virDomainHostdevDefPtr hostdev,
                 goto cleanup;
             }
             break;
+        case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
+            if (virAsprintf(&address, "%s:%d:%d:%d",
+                            hostdev->source.subsys.u.scsi.adapter,
+                            hostdev->source.subsys.u.scsi.bus,
+                            hostdev->source.subsys.u.scsi.target,
+                            hostdev->source.subsys.u.scsi.unit) < 0) {
+                VIR_WARN("OOM while encoding audit message");
+                goto cleanup;
+            }
+            break;
         default:
             VIR_WARN("Unexpected hostdev type while encoding audit message: %d",
                      hostdev->source.subsys.type);
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index e0bd8aa47f..d20faa5eef 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -585,7 +585,8 @@ VIR_ENUM_IMPL(virDomainHostdevMode, VIR_DOMAIN_HOSTDEV_MODE_LAST,
 
 VIR_ENUM_IMPL(virDomainHostdevSubsys, VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_LAST,
               "usb",
-              "pci")
+              "pci",
+              "scsi")
 
 VIR_ENUM_IMPL(virDomainHostdevSubsysPciBackend,
               VIR_DOMAIN_HOSTDEV_PCI_BACKEND_TYPE_LAST,
@@ -1634,7 +1635,8 @@ void virDomainHostdevDefClear(virDomainHostdevDefPtr def)
     if (def->parent.type == VIR_DOMAIN_DEVICE_NONE)
         virDomainDeviceInfoFree(def->info);
 
-    if (def->mode == VIR_DOMAIN_HOSTDEV_MODE_CAPABILITIES) {
+    switch (def->mode) {
+    case VIR_DOMAIN_HOSTDEV_MODE_CAPABILITIES:
         switch (def->source.caps.type) {
         case VIR_DOMAIN_HOSTDEV_CAPS_TYPE_STORAGE:
             VIR_FREE(def->source.caps.u.storage.block);
@@ -1646,6 +1648,11 @@ void virDomainHostdevDefClear(virDomainHostdevDefPtr def)
             VIR_FREE(def->source.caps.u.net.iface);
             break;
         }
+        break;
+    case VIR_DOMAIN_HOSTDEV_MODE_SUBSYS:
+        if (def->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI)
+            VIR_FREE(def->source.subsys.u.scsi.adapter);
+        break;
     }
 }
 
@@ -3680,6 +3687,94 @@ out:
     return ret;
 }
 
+static int
+virDomainHostdevSubsysScsiDefParseXML(const xmlNodePtr node,
+                                      virDomainHostdevDefPtr def)
+{
+    int ret = -1;
+    bool got_address = false, got_adapter = false;
+    xmlNodePtr cur;
+    char *bus = NULL, *target = NULL, *unit = NULL;
+
+    cur = node->children;
+    while (cur != NULL) {
+        if (cur->type == XML_ELEMENT_NODE) {
+            if (xmlStrEqual(cur->name, BAD_CAST "address")) {
+                if (got_address) {
+                    virReportError(VIR_ERR_XML_ERROR, "%s",
+                                   _("more than one source addresses is "
+                                     "specified for scsi hostdev"));
+                    goto cleanup;
+                }
+
+                if (!(bus = virXMLPropString(cur, "bus")) ||
+                    !(target = virXMLPropString(cur, "target")) ||
+                    !(unit = virXMLPropString(cur, "unit"))) {
+                    virReportError(VIR_ERR_XML_ERROR, "%s",
+                                   _("'bus', 'target', and 'unit' must be specified "
+                                     "for scsi hostdev source address"));
+                    goto cleanup;
+                }
+
+                if (virStrToLong_ui(bus, NULL, 0, &def->source.subsys.u.scsi.bus) < 0) {
+                    virReportError(VIR_ERR_INTERNAL_ERROR,
+                                   _("cannot parse bus '%s'"), bus);
+                    goto cleanup;
+                }
+
+                if (virStrToLong_ui(target, NULL, 0, &def->source.subsys.u.scsi.target) < 0) {
+                    virReportError(VIR_ERR_INTERNAL_ERROR,
+                                   _("cannot parse target '%s'"), target);
+                    goto cleanup;
+                }
+
+                if (virStrToLong_ui(unit, NULL, 0, &def->source.subsys.u.scsi.unit) < 0) {
+                    virReportError(VIR_ERR_INTERNAL_ERROR,
+                                   _("cannot parse unit '%s'"), unit);
+                    goto cleanup;
+                }
+
+                got_address = true;
+            } else if (xmlStrEqual(cur->name, BAD_CAST "adapter")) {
+                if (got_adapter) {
+                    virReportError(VIR_ERR_XML_ERROR, "%s",
+                                   _("more than one adapters is specified "
+                                     "for scsi hostdev source"));
+                    goto cleanup;
+                }
+                if (!(def->source.subsys.u.scsi.adapter =
+                      virXMLPropString(cur, "name"))) {
+                    virReportError(VIR_ERR_XML_ERROR, "%s",
+                                   _("'adapter' must be specified for scsi hostdev source"));
+                    goto cleanup;
+                }
+
+                got_adapter = true;
+            } else {
+                virReportError(VIR_ERR_XML_ERROR,
+                               _("unsupported element '%s' of scsi hostdev source"),
+                               cur->name);
+                goto cleanup;
+            }
+        }
+        cur = cur->next;
+    }
+
+    if (!got_address || !got_adapter) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
+                       _("'adapter' and 'address' must be specified for scsi "
+                         "hostdev source"));
+        goto cleanup;
+    }
+
+    ret = 0;
+cleanup:
+    VIR_FREE(bus);
+    VIR_FREE(target);
+    VIR_FREE(unit);
+    return ret;
+}
+
 static int
 virDomainHostdevDefParseXMLSubsys(xmlNodePtr node,
                                   xmlXPathContextPtr ctxt,
@@ -3761,6 +3856,12 @@ virDomainHostdevDefParseXMLSubsys(xmlNodePtr node,
         if (virDomainHostdevSubsysUsbDefParseXML(sourcenode, def) < 0)
             goto error;
         break;
+
+    case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
+        if (virDomainHostdevSubsysScsiDefParseXML(sourcenode, def) < 0)
+            goto error;
+        break;
+
     default:
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        _("address type='%s' not supported in hostdev interfaces"),
@@ -8623,6 +8724,13 @@ virDomainHostdevDefParseXML(const xmlNodePtr node,
                 goto error;
             }
             break;
+        case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
+            if (def->info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
+                virReportError(VIR_ERR_XML_ERROR, "%s",
+                               _("SCSI host devices must have address specified"));
+                goto error;
+            }
+            break;
         }
     }
 
@@ -9150,6 +9258,17 @@ virDomainHostdevMatchSubsysPCI(virDomainHostdevDefPtr a,
     return 0;
 }
 
+static int
+virDomainHostdevMatchSubsysSCSI(virDomainHostdevDefPtr a,
+                                virDomainHostdevDefPtr b)
+{
+    if (STREQ(a->source.subsys.u.scsi.adapter, b->source.subsys.u.scsi.adapter) &&
+        a->source.subsys.u.scsi.bus == b->source.subsys.u.scsi.bus &&
+        a->source.subsys.u.scsi.target == b->source.subsys.u.scsi.target &&
+        a->source.subsys.u.scsi.unit == b->source.subsys.u.scsi.unit)
+        return 1;
+    return 0;
+}
 
 static int
 virDomainHostdevMatchSubsys(virDomainHostdevDefPtr a,
@@ -9163,6 +9282,8 @@ virDomainHostdevMatchSubsys(virDomainHostdevDefPtr a,
         return virDomainHostdevMatchSubsysPCI(a, b);
     case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB:
         return virDomainHostdevMatchSubsysUSB(a, b);
+    case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
+        return virDomainHostdevMatchSubsysSCSI(a, b);
     }
     return 0;
 }
@@ -12987,6 +13108,30 @@ virDomainDefMaybeAddSmartcardController(virDomainDefPtr def)
     return 0;
 }
 
+static int
+virDomainDefMaybeAddHostdevSCSIcontroller(virDomainDefPtr def)
+{
+    /* Look for any hostdev scsi dev */
+    int i;
+    int maxController = -1;
+    virDomainHostdevDefPtr hostdev;
+
+    for (i = 0; i < def->nhostdevs; i++) {
+        hostdev = def->hostdevs[i];
+        if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+            hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI &&
+            (int)hostdev->info->addr.drive.controller > maxController) {
+            maxController = hostdev->info->addr.drive.controller;
+        }
+    }
+
+    for (i = 0; i <= maxController; i++) {
+        if (virDomainDefMaybeAddController(def, VIR_DOMAIN_CONTROLLER_TYPE_SCSI, i, -1) < 0)
+            return -1;
+    }
+
+    return 0;
+}
 
 /*
  * Based on the declared <address/> info for any devices,
@@ -13023,6 +13168,9 @@ virDomainDefAddImplicitControllers(virDomainDefPtr def)
     if (virDomainDefMaybeAddSmartcardController(def) < 0)
         return -1;
 
+    if (virDomainDefMaybeAddHostdevSCSIcontroller(def) < 0)
+        return -1;
+
     return 0;
 }
 
@@ -13928,6 +14076,15 @@ virDomainHostdevDefFormatSubsys(virBufferPtr buf,
             virBufferAddLit(buf, "</origstates>\n");
         }
         break;
+    case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
+        virBufferAsprintf(buf, "<adapter name='%s'/>\n",
+                          def->source.subsys.u.scsi.adapter);
+        virBufferAsprintf(buf, "<address %sbus='%d' target='%d' unit='%d'/>\n",
+                          includeTypeInAddr ? "type='scsi' " : "",
+                          def->source.subsys.u.scsi.bus,
+                          def->source.subsys.u.scsi.target,
+                          def->source.subsys.u.scsi.unit);
+        break;
     default:
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("unexpected hostdev type %d"),
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 21f7ce28da..1efae699c3 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -384,6 +384,7 @@ enum virDomainHostdevMode {
 enum virDomainHostdevSubsysType {
     VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB,
     VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI,
+    VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI,
 
     VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_LAST
 };
@@ -417,6 +418,12 @@ struct _virDomainHostdevSubsys {
             virDevicePCIAddress addr; /* host address */
             int backend; /* enum virDomainHostdevSubsysPciBackendType */
         } pci;
+        struct {
+            char *adapter;
+            unsigned bus;
+            unsigned target;
+            unsigned unit;
+        } scsi;
     } u;
 };
 
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hostdev-scsi.xml b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-scsi.xml
new file mode 100644
index 0000000000..5a263e7be0
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-hostdev-scsi.xml
@@ -0,0 +1,35 @@
+<domain type='qemu'>
+  <name>QEMUGuest2</name>
+  <uuid>c7a5fdbd-edaf-9466-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219100</memory>
+  <currentMemory unit='KiB'>219100</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='i686' machine='pc'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu</emulator>
+    <disk type='block' device='disk'>
+      <source dev='/dev/HostVG/QEMUGuest2'/>
+      <target dev='hda' bus='ide'/>
+      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+    </disk>
+    <controller type='scsi' index='0' model='virtio-scsi'/>
+    <controller type='usb' index='0'/>
+    <controller type='ide' index='0'/>
+    <controller type='pci' index='0' model='pci-root'/>
+    <hostdev mode='subsystem' type='scsi' managed='yes'>
+      <source>
+        <adapter name='scsi_host0'/>
+        <address bus='0' target='0' unit='0'/>
+      </source>
+      <address type='drive' controller='0' bus='0' target='4' unit='8'/>
+    </hostdev>
+    <memballoon model='virtio'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 64c1c83023..1ca1f7e0da 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -285,6 +285,8 @@ mymain(void)
     DO_TEST_DIFFERENT("pci-autoadd-addr");
     DO_TEST_DIFFERENT("pci-autoadd-idx");
 
+    DO_TEST("hostdev-scsi");
+
     virObjectUnref(driver.caps);
     virObjectUnref(driver.xmlopt);