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@redhat.com>
Yes, this is expected. virtio-pmem does not support NUMA node: https://listman.redhat.com/archives/libvir-list/2020-December/msg00211.html Michal