iotests: iothreads need ioeventfd

And ioeventfd are only available with virtio-scsi-pci or virtio-scsi-ccw,
use the alias but add a rule to require virtio-scsi-pci or virtio-scsi-ccw
for the tests that use iothreads.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210319202335.2397060-7-laurent@vivier.eu>
Message-Id: <20210323165308.15244-22-alex.bennee@linaro.org>

tests/qemu-iotests/127

@@ -44,7 +44,8 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 _supported_fmt qcow2
 _supported_proto file fuse
 
-_require_devices virtio-scsi scsi-hd
+_require_devices scsi-hd
+_require_one_device_of virtio-scsi-pci virtio-scsi-ccw
 
 IMG_SIZE=64K
 

tests/qemu-iotests/256

@@ -24,6 +24,8 @@ import os
 import iotests
 from iotests import log
 
+iotests._verify_virtio_scsi_pci_or_ccw()
+
 iotests.script_initialize(supported_fmts=['qcow2'])
 size = 64 * 1024 * 1024
 
@@ -61,8 +63,8 @@ with iotests.FilePath('img0') as img0_path, \
     log('--- Preparing images & VM ---\n')
     vm.add_object('iothread,id=iothread0')
     vm.add_object('iothread,id=iothread1')
-    vm.add_device('virtio-scsi-pci,id=scsi0,iothread=iothread0')
-    vm.add_device('virtio-scsi-pci,id=scsi1,iothread=iothread1')
+    vm.add_device('virtio-scsi,id=scsi0,iothread=iothread0')
+    vm.add_device('virtio-scsi,id=scsi1,iothread=iothread1')
     iotests.qemu_img_create('-f', iotests.imgfmt, img0_path, str(size))
     iotests.qemu_img_create('-f', iotests.imgfmt, img1_path, str(size))
     vm.add_drive(img0_path, interface='none')

tests/qemu-iotests/common.rc

@@ -977,5 +977,18 @@ _require_devices()
     done
 }
 
+_require_one_device_of()
+{
+    available=$($QEMU -M none -device help | \
+                grep ^name | sed -e 's/^name "//' -e 's/".*$//')
+    for device
+    do
+        if echo "$available" | grep -q "$device" ; then
+            return
+        fi
+    done
+    _notrun "$* not available"
+}
+
 # make sure this script returns success
 true

tests/qemu-iotests/iotests.py

@@ -1146,6 +1146,11 @@ def _verify_virtio_blk() -> None:
     if 'virtio-blk' not in out:
         notrun('Missing virtio-blk in QEMU binary')
 
+def _verify_virtio_scsi_pci_or_ccw() -> None:
+    out = qemu_pipe('-M', 'none', '-device', 'help')
+    if 'virtio-scsi-pci' not in out and 'virtio-scsi-ccw' not in out:
+        notrun('Missing virtio-scsi-pci or virtio-scsi-ccw in QEMU binary')
+
 
 def supports_quorum():
     return 'quorum' in qemu_img_pipe('--help')