Re: add nvdimm and set it as a dax device

De: "Pierre Clouzet" <pierre.clouzet(a)inria.fr&gt; À: "users" <users(a)lists.libvirt.org&gt; Envoyé: Mardi 13 Février 2024 09:50:13 Objet: add nvdimm and set it as a dax device

Hello, I'm trying to add an nvdimm device on my vm and configure it to a dax mode. Directly with qemu, I was: sudo ndctl disable-namespace namespace0.0 sudo ndctl create-namespace -m devdax sudo daxctl reconfigure-device -m system-ram all --force

However, when running with virt-manager, I get the following error message when I run sudo ndctl create-namespace -m devdax

Error: create namespace: region0 align setting is 0x1000000 size 0x1dde0000 is misaligned. Here are the xml infos for the nvdimm device:

<memory model="nvdimm" access="shared"> <source> <path>/mnt/scratch/pclouzet/libvirt/dax0.0</path> <alignsize unit="KiB">2048</alignsize> <pmem/> </source> <target> <size unit="KiB">488282</size> <node>0</node> <label> <size unit="KiB">128</size> </label> </target> <address type="dimm" slot="0"/> </memory> </devices>

Is there an additional command I missed to set it as a dax device?

Thanks, Pierre

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