Re: [libvirt] [PATCH 5/8] conf: Add disk iothread bus check in device post parse

On Thu, Apr 21, 2016 at 19:24:13 -0400, John Ferlan wrote: > Add a check in the device post processing for any disk using iothread to be > using the proper bus (which happens to be only virtio for now). > > This check could have been added in device parse, except that if a domain > was running with such a configuration (albeit doing nothing), then it > would disappear. Found while working through code to add iothreads for > virtio-scsi-{pci,ccw}. This is still called when parsing and makes the domain disappear. > > Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; > --- > src/conf/domain_conf.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c > index a3c50f1..fd7579a 100644 > --- a/src/conf/domain_conf.c > +++ b/src/conf/domain_conf.c > @@ -4187,6 +4187,13 @@ virDomainDeviceDefPostParseInternal(virDomainDeviceDefPtr dev, > return -1; > } > > + if (disk->iothread && disk->bus != VIR_DOMAIN_DISK_BUS_VIRTIO) { > + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, > + _("disk '%s' improperly configured, iothread " > + "only supported on virtio bus"), disk->dst); > + return -1; > + } > + > if (disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE && > virDomainDiskDefAssignAddress(xmlopt, disk, def) < 0) > return -1; NACK to this placement, you need to put it into qemuProcess..