qemu: Support bootindex for scsi host device

src/qemu/qemu_command.c

@@ -4827,6 +4827,9 @@ qemuBuildSCSIHostdevDevStr(virDomainDefPtr def,
                       virDomainDeviceAddressTypeToString(dev->info->type),
                       dev->info->alias, dev->info->alias);
 
+    if (dev->info->bootIndex)
+        virBufferAsprintf(&buf, ",bootindex=%d", dev->info->bootIndex);
+
     if (virBufferError(&buf)) {
         virReportOOMError();
         goto error;
@@ -8082,6 +8085,13 @@ qemuBuildCommandLine(virConnectPtr conn,
                                      "supported with this version of qemu"));
                     goto error;
                 }
+                if (hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI &&
+                    !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SCSI_GENERIC_BOOTINDEX)) {
+                    virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                                   _("booting from assigned SCSI devices is not"
+                                     " supported with this version of qemu"));
+                    goto error;
+                }
             }
         }
 

tests/qemuxml2argvdata/qemuxml2argv-hostdev-scsi-boot.args

+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 \
+-device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x3 -usb \
+-drive file=/dev/HostVG/QEMUGuest2,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=/dev/sg0,if=none,id=drive-hostdev-scsi_host0-0-0-0 \
+-device scsi-generic,bus=scsi0.0,channel=0,scsi-id=4,lun=8,drive=drive-hostdev-scsi_host0-0-0-0,id=hostdev-scsi_host0-0-0-0,bootindex=1 \
+-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4

tests/qemuxml2argvdata/qemuxml2argv-hostdev-scsi-boot.xml

+<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>
+  </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'/>
+    <hostdev mode='subsystem' type='scsi' managed='yes'>
+      <source>
+        <adapter name='scsi_host0'/>
+        <address bus='0' target='0' unit='0'/>
+      </source>
+      <boot order='1'/>
+      <address type='drive' controller='0' bus='0' target='4' unit='8'/>
+    </hostdev>
+    <memballoon model='virtio'/>
+  </devices>
+</domain>

tests/qemuxml2argvtest.c

@@ -989,6 +989,11 @@ mymain(void)
             QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE,
             QEMU_CAPS_DRIVE_READONLY, QEMU_CAPS_VIRTIO_SCSI,
             QEMU_CAPS_VIRTIO_SCSI, QEMU_CAPS_DEVICE_SCSI_GENERIC);
+    DO_TEST("hostdev-scsi-virtio-scsi", QEMU_CAPS_DRIVE,
+            QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE,
+            QEMU_CAPS_VIRTIO_SCSI, QEMU_CAPS_VIRTIO_SCSI,
+            QEMU_CAPS_DEVICE_SCSI_GENERIC,
+            QEMU_CAPS_DEVICE_SCSI_GENERIC_BOOTINDEX);
 
     virObjectUnref(driver.config);
     virObjectUnref(driver.caps);