qemu: Support scsi controller model=virtio-{non-}transitional

Add <controller type='scsi' model handling for virtio transitional
devices. Ex:

  <controller type='scsi' model='virtio-transitional'/>

* "virtio-transitional" maps to qemu "virtio-scsi-pci-transitional"
* "virtio-non-transitional" maps to qemu "virtio-scsi-non-transitional"

The naming here doesn't match the pre-existing model=virtio-scsi.
The prescence of '-scsi' there seems kind of redundant as we have
type='scsi' already, so I decided to follow the pattern of other
patches and use virtio-transitional etc.
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>
Signed-off-by: NCole Robinson <crobinso@redhat.com>

docs/formatdomain.html.in

@@ -4195,8 +4195,11 @@
         <dt><code>scsi</code></dt>
         <dd>A <code>scsi</code> controller has an optional attribute
         <code>model</code>, which is one of 'auto', 'buslogic', 'ibmvscsi',
-        'lsilogic', 'lsisas1068', 'lsisas1078', 'virtio-scsi' or
-        'vmpvscsi'.</dd>
+        'lsilogic', 'lsisas1068', 'lsisas1078', 'virtio-scsi',
+        'vmpvscsi', 'virtio-transitional', 'virtio-non-transitional'. See
+        <a href="#elementsVirtioTransitional">Virtio transitional devices</a>
+        for more details.
+        </dd>
         <dt><code>usb</code></dt>
         <dd>A <code>usb</code> controller has an optional attribute
         <code>model</code>, which is one of "piix3-uhci", "piix4-uhci",

docs/schemas/domaincommon.rng

@@ -2156,6 +2156,8 @@
                   <value>ibmvscsi</value>
                   <value>virtio-scsi</value>
                   <value>lsisas1078</value>
+                  <value>virtio-transitional</value>
+                  <value>virtio-non-transitional</value>
                 </choice>
               </attribute>
             </optional>

src/conf/domain_conf.c

@@ -385,7 +385,10 @@ VIR_ENUM_IMPL(virDomainControllerModelSCSI, VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LAS
               "vmpvscsi",
               "ibmvscsi",
               "virtio-scsi",
-              "lsisas1078");
+              "lsisas1078",
+              "virtio-transitional",
+              "virtio-non-transitional",
+);
 
 VIR_ENUM_IMPL(virDomainControllerModelUSB, VIR_DOMAIN_CONTROLLER_MODEL_USB_LAST,
               "piix3-uhci",
@@ -4935,11 +4938,12 @@ static int
 virDomainControllerDefPostParse(virDomainControllerDefPtr cdev)
 {
     if (cdev->iothread &&
-        cdev->model != VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI) {
-        virReportError(VIR_ERR_XML_ERROR,
+        cdev->model != VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI &&
+        cdev->model != VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL &&
+        cdev->model != VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
                        _("'iothread' attribute only supported for "
-                         "controller model '%s'"),
-                       virDomainControllerModelSCSITypeToString(VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI));
+                         "virtio scsi controllers"));
         return -1;
     }
 

src/conf/domain_conf.h

@@ -756,6 +756,8 @@ typedef enum {
     VIR_DOMAIN_CONTROLLER_MODEL_SCSI_IBMVSCSI,
     VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI,
     VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1078,
+    VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL,
+    VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL,
 
     VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LAST
 } virDomainControllerModelSCSI;

src/qemu/qemu_command.c

@@ -523,6 +523,9 @@ qemuBuildVirtioDevStr(virBufferPtr buf,
             if (device.data.controller->type == VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL) {
                 has_tmodel = device.data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_VIRTIO_SERIAL_VIRTIO_TRANSITIONAL;
                 has_ntmodel = device.data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_VIRTIO_SERIAL_VIRTIO_NON_TRANSITIONAL;
+            } else if (device.data.controller->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI) {
+                has_tmodel = device.data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL;
+                has_ntmodel = device.data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL;
             } else {
                 return 0;
             }
@@ -2997,6 +3000,8 @@ qemuBuildControllerDevStr(const virDomainDef *domainDef,
     case VIR_DOMAIN_CONTROLLER_TYPE_SCSI:
         switch ((virDomainControllerModelSCSI) def->model) {
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
+        case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL:
+        case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL:
             if (qemuBuildVirtioDevStr(&buf, "virtio-scsi", qemuCaps,
                                       VIR_DOMAIN_DEVICE_CONTROLLER, def) < 0) {
                 goto error;

src/qemu/qemu_domain.c

@@ -5087,7 +5087,9 @@ static int
 qemuDomainDeviceDefValidateControllerAttributes(const virDomainControllerDef *controller)
 {
     if (!(controller->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI &&
-          controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI)) {
+          (controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI ||
+           controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL ||
+           controller->model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL))) {
         if (controller->queues) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                            _("'queues' is only supported by virtio-scsi controller"));
@@ -5141,6 +5143,8 @@ qemuDomainCheckSCSIControllerModel(virQEMUCapsPtr qemuCaps,
         }
         break;
     case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
+    case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL:
+    case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL:
         if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_SCSI)) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                            _("This QEMU doesn't support "
@@ -5256,6 +5260,8 @@ qemuDomainDeviceDefValidateControllerSCSI(const virDomainControllerDef *controll
 {
     switch ((virDomainControllerModelSCSI) controller->model) {
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
+        case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL:
+        case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL:
             if (!qemuDomainCheckSCSIControllerIOThreads(controller, def))
                 return -1;
             break;

src/qemu/qemu_domain_address.c

@@ -648,8 +648,11 @@ qemuDomainDeviceCalculatePCIConnectFlags(virDomainDeviceDefPtr dev,
                 return 0;
 
             case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
+            case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL:
                 return virtioFlags;
 
+            /* Transitional devices only work in conventional PCI slots */
+            case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL:
             case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_AUTO:
             case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_BUSLOGIC:
             case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC:

src/vbox/vbox_common.c

@@ -406,6 +406,8 @@ vboxSetStorageController(virDomainControllerDefPtr controller,
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VMPVSCSI:
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_IBMVSCSI:
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
+        case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_TRANSITIONAL:
+        case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_NON_TRANSITIONAL:
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1078:
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                            _("The vbox driver does not support %s SCSI "

src/vmx/vmx.c

@@ -517,7 +517,10 @@ VIR_ENUM_IMPL(virVMXControllerModelSCSI, VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LAST,
               "pvscsi",
               "UNUSED ibmvscsi",
               "UNUSED virtio-scsi",
-              "UNUSED lsisas1078");
+              "UNUSED lsisas1078",
+              "UNUSED virtio-transitional",
+              "UNUSED virtio-non-transitional",
+);
 
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.args

@@ -35,10 +35,13 @@ addr=0x1 \
 -device pcie-root-port,port=0x10,chassis=9,id=pci.9,bus=pcie.0,\
 multifunction=on,addr=0x2 \
 -device pcie-root-port,port=0x11,chassis=10,id=pci.10,bus=pcie.0,addr=0x2.0x1 \
+-device pcie-root-port,port=0x12,chassis=11,id=pci.11,bus=pcie.0,addr=0x2.0x2 \
+-device virtio-scsi-pci,disable-legacy=on,disable-modern=off,id=scsi0,\
+bus=pci.4,addr=0x0 \
 -device virtio-serial-pci,disable-legacy=on,disable-modern=off,\
 id=virtio-serial0,bus=pci.3,addr=0x0 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci,disable-legacy=on,disable-modern=off,scsi=off,bus=pci.4,\
+-device virtio-blk-pci,disable-legacy=on,disable-modern=off,scsi=off,bus=pci.5,\
 addr=0x0,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
 -device virtio-9p-pci,disable-legacy=on,disable-modern=off,id=fs0,\
@@ -47,16 +50,16 @@ fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.1,addr=0x0 \
 -device virtio-net-pci,disable-legacy=on,disable-modern=off,netdev=hostnet0,\
 id=net0,mac=00:11:22:33:44:55,bus=pci.2,addr=0x0 \
 -device virtio-input-host-pci,disable-legacy=on,disable-modern=off,id=input0,\
-evdev=/dev/input/event1234,bus=pci.8,addr=0x0 \
+evdev=/dev/input/event1234,bus=pci.9,addr=0x0 \
 -device vhost-scsi-pci,disable-legacy=on,disable-modern=off,\
-wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,bus=pci.5,addr=0x0 \
+wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,bus=pci.6,addr=0x0 \
 -device virtio-balloon-pci,disable-legacy=on,disable-modern=off,id=balloon0,\
-bus=pci.6,addr=0x0 \
+bus=pci.7,addr=0x0 \
 -object rng-random,id=objrng0,filename=/dev/urandom \
 -device virtio-rng-pci,disable-legacy=on,disable-modern=off,rng=objrng0,\
-id=rng0,bus=pci.7,addr=0x0 \
+id=rng0,bus=pci.8,addr=0x0 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
 resourcecontrol=deny \
 -device vhost-vsock-pci,disable-legacy=on,disable-modern=off,id=vsock0,\
-guest-cid=4,vhostfd=6789,bus=pci.9,addr=0x0 \
+guest-cid=4,vhostfd=6789,bus=pci.10,addr=0x0 \
 -msg timestamp=on

tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args

@@ -35,10 +35,12 @@ addr=0x1 \
 -device pcie-root-port,port=0x10,chassis=9,id=pci.9,bus=pcie.0,\
 multifunction=on,addr=0x2 \
 -device pcie-root-port,port=0x11,chassis=10,id=pci.10,bus=pcie.0,addr=0x2.0x1 \
+-device pcie-root-port,port=0x12,chassis=11,id=pci.11,bus=pcie.0,addr=0x2.0x2 \
+-device virtio-scsi-pci-non-transitional,id=scsi0,bus=pci.4,addr=0x0 \
 -device virtio-serial-pci-non-transitional,id=virtio-serial0,bus=pci.3,\
 addr=0x0 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci-non-transitional,scsi=off,bus=pci.4,addr=0x0,\
+-device virtio-blk-pci-non-transitional,scsi=off,bus=pci.5,addr=0x0,\
 drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
 -device virtio-9p-pci-non-transitional,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,\
@@ -47,14 +49,14 @@ bus=pci.1,addr=0x0 \
 -device virtio-net-pci-non-transitional,netdev=hostnet0,id=net0,\
 mac=00:11:22:33:44:55,bus=pci.2,addr=0x0 \
 -device virtio-input-host-pci-non-transitional,id=input0,\
-evdev=/dev/input/event1234,bus=pci.8,addr=0x0 \
+evdev=/dev/input/event1234,bus=pci.9,addr=0x0 \
 -device vhost-scsi-pci-non-transitional,wwpn=naa.5123456789abcde0,vhostfd=3,\
-id=hostdev0,bus=pci.5,addr=0x0 \
--device virtio-balloon-pci-non-transitional,id=balloon0,bus=pci.6,addr=0x0 \
+id=hostdev0,bus=pci.6,addr=0x0 \
+-device virtio-balloon-pci-non-transitional,id=balloon0,bus=pci.7,addr=0x0 \
 -object rng-random,id=objrng0,filename=/dev/urandom \
--device virtio-rng-pci-non-transitional,rng=objrng0,id=rng0,bus=pci.7,addr=0x0 \
+-device virtio-rng-pci-non-transitional,rng=objrng0,id=rng0,bus=pci.8,addr=0x0 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
 resourcecontrol=deny \
 -device vhost-vsock-pci-non-transitional,id=vsock0,guest-cid=4,vhostfd=6789,\
-bus=pci.9,addr=0x0 \
+bus=pci.10,addr=0x0 \
 -msg timestamp=on

tests/qemuxml2argvdata/virtio-non-transitional.xml

@@ -29,6 +29,7 @@
       <source evdev='/dev/input/event1234'/>
     </input>
     <controller type='virtio-serial' model='virtio-non-transitional'/>
+    <controller type='scsi' model='virtio-non-transitional'/>
     <controller type='usb' model='none'/>
     <memballoon model='virtio-non-transitional'/>
     <vsock model='virtio-non-transitional'>

tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args

@@ -27,11 +27,13 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
 addr=0x1 \
 -device pcie-pci-bridge,id=pci.2,bus=pci.1,addr=0x0 \
 -device pcie-root-port,port=0x9,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x1 \
+-device virtio-scsi-pci,disable-legacy=off,disable-modern=off,id=scsi0,\
+bus=pci.2,addr=0x4 \
 -device virtio-serial-pci,disable-legacy=off,disable-modern=off,\
 id=virtio-serial0,bus=pci.2,addr=0x3 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
 -device virtio-blk-pci,disable-legacy=off,disable-modern=off,scsi=off,\
-bus=pci.2,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
+bus=pci.2,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
 -device virtio-9p-pci,disable-legacy=off,disable-modern=off,id=fs0,\
 fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.2,addr=0x1 \
@@ -39,16 +41,16 @@ fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.2,addr=0x1 \
 -device virtio-net-pci,disable-legacy=off,disable-modern=off,netdev=hostnet0,\
 id=net0,mac=00:11:22:33:44:55,bus=pci.2,addr=0x2 \
 -device virtio-input-host-pci,disable-legacy=off,disable-modern=off,id=input0,\
-evdev=/dev/input/event1234,bus=pci.2,addr=0x8 \
+evdev=/dev/input/event1234,bus=pci.2,addr=0x9 \
 -device vhost-scsi-pci,disable-legacy=off,disable-modern=off,\
-wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,bus=pci.2,addr=0x5 \
+wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,bus=pci.2,addr=0x6 \
 -device virtio-balloon-pci,disable-legacy=off,disable-modern=off,id=balloon0,\
-bus=pci.2,addr=0x6 \
+bus=pci.2,addr=0x7 \
 -object rng-random,id=objrng0,filename=/dev/urandom \
 -device virtio-rng-pci,disable-legacy=off,disable-modern=off,rng=objrng0,\
-id=rng0,bus=pci.2,addr=0x7 \
+id=rng0,bus=pci.2,addr=0x8 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
 resourcecontrol=deny \
 -device vhost-vsock-pci,disable-legacy=off,disable-modern=off,id=vsock0,\
-guest-cid=4,vhostfd=6789,bus=pci.2,addr=0x9 \
+guest-cid=4,vhostfd=6789,bus=pci.2,addr=0xa \
 -msg timestamp=on

tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args

@@ -27,9 +27,10 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
 addr=0x1 \
 -device pcie-pci-bridge,id=pci.2,bus=pci.1,addr=0x0 \
 -device pcie-root-port,port=0x9,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x1 \
+-device virtio-scsi-pci-transitional,id=scsi0,bus=pci.2,addr=0x4 \
 -device virtio-serial-pci-transitional,id=virtio-serial0,bus=pci.2,addr=0x3 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci-transitional,scsi=off,bus=pci.2,addr=0x4,\
+-device virtio-blk-pci-transitional,scsi=off,bus=pci.2,addr=0x5,\
 drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
 -device virtio-9p-pci-transitional,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,\
@@ -38,14 +39,14 @@ bus=pci.2,addr=0x1 \
 -device virtio-net-pci-transitional,netdev=hostnet0,id=net0,\
 mac=00:11:22:33:44:55,bus=pci.2,addr=0x2 \
 -device virtio-input-host-pci-transitional,id=input0,\
-evdev=/dev/input/event1234,bus=pci.2,addr=0x8 \
+evdev=/dev/input/event1234,bus=pci.2,addr=0x9 \
 -device vhost-scsi-pci-transitional,wwpn=naa.5123456789abcde0,vhostfd=3,\
-id=hostdev0,bus=pci.2,addr=0x5 \
--device virtio-balloon-pci-transitional,id=balloon0,bus=pci.2,addr=0x6 \
+id=hostdev0,bus=pci.2,addr=0x6 \
+-device virtio-balloon-pci-transitional,id=balloon0,bus=pci.2,addr=0x7 \
 -object rng-random,id=objrng0,filename=/dev/urandom \
--device virtio-rng-pci-transitional,rng=objrng0,id=rng0,bus=pci.2,addr=0x7 \
+-device virtio-rng-pci-transitional,rng=objrng0,id=rng0,bus=pci.2,addr=0x8 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
 resourcecontrol=deny \
 -device vhost-vsock-pci-transitional,id=vsock0,guest-cid=4,vhostfd=6789,\
-bus=pci.2,addr=0x9 \
+bus=pci.2,addr=0xa \
 -msg timestamp=on

tests/qemuxml2argvdata/virtio-transitional.xml

@@ -29,6 +29,7 @@
       <source evdev='/dev/input/event1234'/>
     </input>
     <controller type='virtio-serial' model='virtio-transitional'/>
+    <controller type='scsi' model='virtio-transitional'/>
     <controller type='usb' model='none'/>
     <memballoon model='virtio-transitional'/>
     <vsock model='virtio-transitional'>

tests/qemuxml2xmloutdata/virtio-non-transitional.xml

@@ -18,11 +18,14 @@
       <driver name='qemu' type='raw'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='vda' bus='virtio'/>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
     </disk>
     <controller type='virtio-serial' index='0' model='virtio-non-transitional'>
       <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
     </controller>
+    <controller type='scsi' index='0' model='virtio-non-transitional'>
+      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
+    </controller>
     <controller type='usb' index='0' model='none'/>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
@@ -78,6 +81,11 @@
       <target chassis='10' port='0x11'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
     </controller>
+    <controller type='pci' index='11' model='pcie-root-port'>
+      <model name='pcie-root-port'/>
+      <target chassis='11' port='0x12'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x2'/>
+    </controller>
     <filesystem type='mount' accessmode='passthrough' model='virtio-non-transitional'>
       <source dir='/export/fs1'/>
       <target dir='fs1'/>
@@ -90,24 +98,24 @@
     </interface>
     <input type='passthrough' bus='virtio' model='virtio-non-transitional'>
       <source evdev='/dev/input/event1234'/>
-      <address type='pci' domain='0x0000' bus='0x08' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x09' slot='0x00' function='0x0'/>
     </input>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
     <hostdev mode='subsystem' type='scsi_host' managed='no' model='virtio-non-transitional'>
       <source protocol='vhost' wwpn='naa.5123456789abcde0'/>
-      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
     </hostdev>
     <memballoon model='virtio-non-transitional'>
-      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x07' slot='0x00' function='0x0'/>
     </memballoon>
     <rng model='virtio-non-transitional'>
       <backend model='random'>/dev/urandom</backend>
-      <address type='pci' domain='0x0000' bus='0x07' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x08' slot='0x00' function='0x0'/>
     </rng>
     <vsock model='virtio-non-transitional'>
       <cid auto='no' address='4'/>
-      <address type='pci' domain='0x0000' bus='0x09' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x0a' slot='0x00' function='0x0'/>
     </vsock>
   </devices>
 </domain>

tests/qemuxml2xmloutdata/virtio-transitional.xml

@@ -18,11 +18,14 @@
       <driver name='qemu' type='raw'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='vda' bus='virtio'/>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x04' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x05' function='0x0'/>
     </disk>
     <controller type='virtio-serial' index='0' model='virtio-transitional'>
       <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
     </controller>
+    <controller type='scsi' index='0' model='virtio-transitional'>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x04' function='0x0'/>
+    </controller>
     <controller type='usb' index='0' model='none'/>
     <controller type='sata' index='0'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
@@ -54,24 +57,24 @@
     </interface>
     <input type='passthrough' bus='virtio' model='virtio-transitional'>
       <source evdev='/dev/input/event1234'/>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x08' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x09' function='0x0'/>
     </input>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
     <hostdev mode='subsystem' type='scsi_host' managed='no' model='virtio-transitional'>
       <source protocol='vhost' wwpn='naa.5123456789abcde0'/>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x05' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x06' function='0x0'/>
     </hostdev>
     <memballoon model='virtio-transitional'>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x06' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x07' function='0x0'/>
     </memballoon>
     <rng model='virtio-transitional'>
       <backend model='random'>/dev/urandom</backend>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x07' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x08' function='0x0'/>
     </rng>
     <vsock model='virtio-transitional'>
       <cid auto='no' address='4'/>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x09' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x0a' function='0x0'/>
     </vsock>
   </devices>
 </domain>

tests/qemuxml2xmltest.c

@@ -1261,7 +1261,8 @@ mymain(void)
             QEMU_CAPS_DEVICE_VIRTIO_RNG,
             QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY,
             QEMU_CAPS_DEVICE_VHOST_VSOCK,
-            QEMU_CAPS_VIRTIO_INPUT_HOST);
+            QEMU_CAPS_VIRTIO_INPUT_HOST,
+            QEMU_CAPS_VIRTIO_SCSI);
     DO_TEST("virtio-non-transitional",
             QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
             QEMU_CAPS_DEVICE_PCIE_PCI_BRIDGE,
@@ -1269,7 +1270,8 @@ mymain(void)
             QEMU_CAPS_DEVICE_VIRTIO_RNG,
             QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY,
             QEMU_CAPS_DEVICE_VHOST_VSOCK,
-            QEMU_CAPS_VIRTIO_INPUT_HOST);
+            QEMU_CAPS_VIRTIO_INPUT_HOST,
+            QEMU_CAPS_VIRTIO_SCSI);
 
     if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
         virFileDeleteTree(fakerootdir);