On 4/26/21 9:52 AM, Jing Qi wrote: > S2: From the docs, "virtio-pmem" works also. > # cat pmem.xml > <memory model='virtio-pmem' access='shared'> > <source> > <path>/tmp/nvdimm</path> > </source> > <target> > <size unit='KiB'>131072</size> > <label> > <size unit='KiB'>128</size> > </label> > </target> > </memory> > # virsh attach-device pc_test pmem.xml > Device attached successfully > #virsh dumpxml pc_test > <memory unit='KiB'>1441792</memory> > <currentMemory unit='KiB'>1282048</currentMemory> > > Question: > But seems it don't support <node> element , and if add <node> element, > below errors are prompted - > error: Failed to attach device from pmem > error: unsupported configuration: virtio-pmem does not support NUMA nodes > Since the <node> element is supported by nvdimm & virtio-mem, can you > help to confirm if it's as expected? @Michal Privoznik > <mailto:mprivozn@xxxxxxxxxx> Yes, this is expected. virtio-pmem does not support NUMA node: https://listman.redhat.com/archives/libvir-list/2020-December/msg00211.html Michal