On Tue, Mar 24, 2020 at 12:38:58 +0100, Michal Privoznik wrote: > On 23. 3. 2020 19:11, Peter Krempa wrote: > > VIR_TRISTATE_BOOL_ABSENT which maps to the 'default' string would not be > > parsed back, so we shouldn't format it either. > > > > Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx> > > --- > > src/conf/domain_conf.c | 5 +++-- > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c > > index f1e4d33a8d..f6a225e4e6 100644 > > --- a/src/conf/domain_conf.c > > +++ b/src/conf/domain_conf.c > > @@ -24662,8 +24662,9 @@ virDomainDiskSourceNVMeFormat(virBufferPtr attrBuf, > > const virStorageSourceNVMeDef *nvme) > > { > > virBufferAddLit(attrBuf, " type='pci'"); > > - virBufferAsprintf(attrBuf, " managed='%s'", > > - virTristateBoolTypeToString(nvme->managed)); > > + if (nvme->managed != VIR_TRISTATE_BOOL_ABSENT) > > + virBufferAsprintf(attrBuf, " managed='%s'", > > + virTristateBoolTypeToString(nvme->managed)); > > virBufferAsprintf(attrBuf, " namespace='%llu'", nvme->namespc); > > virPCIDeviceAddressFormat(childBuf, nvme->pciAddr, false); > > } > > > > There is a postparse callback which deals with _ABSENT (see commit > 8cd7196974d): > > > static int > virDomainDiskDefPostParse(virDomainDiskDefPtr disk, > const virDomainDef *def, > virDomainXMLOptionPtr xmlopt) > { > ... > if (disk->src->type == VIR_STORAGE_TYPE_NVME) { > if (disk->src->nvme->managed == VIR_TRISTATE_BOOL_ABSENT) > disk->src->nvme->managed = VIR_TRISTATE_BOOL_YES; > } > ... > } > > But maybe the callback is not called from tests where virStorageSource > is parsed directly? Well, the issue is when the virStorageSource is created from the backing store rather than parsed from XML which is added later on.