caps: Add new capability for the iotune group name

Add the capability to detect if the qemu binary can support the feature
to use throttling.group.

src/qemu/qemu_capabilities.c

@@ -353,6 +353,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
               "query-qmp-schema",
               "gluster.debug_level",
               "vhost-scsi",
+              "drive-iotune-group",
     );
 
 
@@ -2923,6 +2924,7 @@ static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = {
     { "name", "guest", QEMU_CAPS_NAME_GUEST },
     { "spice", "unix", QEMU_CAPS_SPICE_UNIX },
     { "drive", "throttling.bps-total-max-length", QEMU_CAPS_DRIVE_IOTUNE_MAX_LENGTH },
+    { "drive", "throttling.group", QEMU_CAPS_DRIVE_IOTUNE_GROUP },
 };
 
 static int

src/qemu/qemu_capabilities.h

@@ -388,6 +388,7 @@ typedef enum {
     QEMU_CAPS_QUERY_QMP_SCHEMA, /* query-qmp-schema command */
     QEMU_CAPS_GLUSTER_DEBUG_LEVEL, /* -drive gluster.debug_level={0..9} */
     QEMU_CAPS_DEVICE_VHOST_SCSI, /* -device vhost-scsi-{ccw,pci} */
+    QEMU_CAPS_DRIVE_IOTUNE_GROUP, /* -drive throttling.group=<name> */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;

tests/qemucapabilitiesdata/caps_2.4.0.x86_64.xml

@@ -182,6 +182,7 @@
   <flag name='machine-iommu'/>
   <flag name='virtio-vga'/>
   <flag name='vhost-scsi'/>
+  <flag name='drive-iotune-group'/>
   <version>2004000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>

tests/qemucapabilitiesdata/caps_2.5.0.x86_64.xml

@@ -188,6 +188,7 @@
   <flag name='virtio-vga'/>
   <flag name='query-qmp-schema'/>
   <flag name='vhost-scsi'/>
+  <flag name='drive-iotune-group'/>
   <version>2005000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>

tests/qemucapabilitiesdata/caps_2.6.0-gicv2.aarch64.xml

@@ -163,6 +163,7 @@
   <flag name='ivshmem-doorbell'/>
   <flag name='query-qmp-schema'/>
   <flag name='vhost-scsi'/>
+  <flag name='drive-iotune-group'/>
   <version>2006000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>

tests/qemucapabilitiesdata/caps_2.6.0-gicv3.aarch64.xml

@@ -163,6 +163,7 @@
   <flag name='ivshmem-doorbell'/>
   <flag name='query-qmp-schema'/>
   <flag name='vhost-scsi'/>
+  <flag name='drive-iotune-group'/>
   <version>2006000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>

tests/qemucapabilitiesdata/caps_2.6.0.ppc64le.xml

@@ -158,6 +158,7 @@
   <flag name='ivshmem-doorbell'/>
   <flag name='query-qmp-schema'/>
   <flag name='vhost-scsi'/>
+  <flag name='drive-iotune-group'/>
   <version>2006000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>

tests/qemucapabilitiesdata/caps_2.6.0.x86_64.xml

@@ -197,6 +197,7 @@
   <flag name='ivshmem-doorbell'/>
   <flag name='query-qmp-schema'/>
   <flag name='vhost-scsi'/>
+  <flag name='drive-iotune-group'/>
   <version>2006000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>

tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml

@@ -199,6 +199,7 @@
   <flag name='query-qmp-schema'/>
   <flag name='gluster.debug_level'/>
   <flag name='vhost-scsi'/>
+  <flag name='drive-iotune-group'/>
   <version>2007000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.7.0)</package>

tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml

@@ -196,6 +196,7 @@
   <flag name='ivshmem-doorbell'/>
   <flag name='query-qmp-schema'/>
   <flag name='vhost-scsi'/>
+  <flag name='drive-iotune-group'/>
   <version>2007091</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.8.0-rc1-dirty)</package>