Assign spapr-vio bus address to ibmvscsi controller

For pseries guest, the default controller model is
ibmvscsi controller, this controller only can work
on spapr-vio address.

This patch is to assign spapr-vio address type to
ibmvscsi controller and correct vscsi test case.

Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
(cherry picked from commit bb725ac1fa)

src/qemu/qemu_command.c

@@ -779,6 +779,7 @@ qemuAssignSpaprVIOAddress(virDomainDefPtr def, virDomainDeviceInfoPtr info,
 int qemuDomainAssignSpaprVIOAddresses(virDomainDefPtr def)
 {
     int i, rc;
+    int model;
 
     /* Default values match QEMU. See spapr_(llan|vscsi|vty).c */
 
@@ -790,10 +791,18 @@ int qemuDomainAssignSpaprVIOAddresses(virDomainDefPtr def)
     }
 
     for (i = 0 ; i < def->ncontrollers; i++) {
-        rc = qemuAssignSpaprVIOAddress(def, &def->controllers[i]->info,
+        model = def->controllers[i]->model;
-                                       0x2000ul);
+        if (model == -1 &&
-        if (rc)
+            def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI)
-            return rc;
+            model = qemuDefaultScsiControllerModel(def);
+        if (model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_IBMVSCSI &&
+            def->controllers[i]->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI) {
+            def->controllers[i]->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO;
+            rc = qemuAssignSpaprVIOAddress(def, &def->controllers[i]->info,
+                                           0x2000ul);
+            if (rc)
+                return rc;
+        }
     }
 
     for (i = 0 ; i < def->nserials; i++) {

tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-vscsi.args

@@ -1,8 +1,8 @@
 LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \
 pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults -monitor \
 unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -device spapr-vscsi,id=scsi0,\
-bus=pci.0,addr=0x3 -drive file=/dev/HostVG/QEMUGuest1,if=none,\
+reg=0x2000 -drive file=/dev/HostVG/QEMUGuest1,if=none,\
 id=drive-ide0-0-0 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
 -drive file=/tmp/scsidisk.img,if=none,id=drive-scsi0-0-3-0 \
 -device scsi-disk,bus=scsi0.0,channel=0,scsi-id=3,lun=0,drive=drive-scsi0-0-3-0,id=scsi0-0-3-0 \
--usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4
+-usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3