Re: [libvirt] virtio pmem support in libvirt
On Thu, Aug 01, 2019 at 01:44:06AM -0400, Pankaj Gupta wrote:
Hi all,
Virtio-pmem support has been added to kernel[1] and qemu[2]
upstream. User document[3] has more details on how to use this
new device.
We now need support in libvirt. Required support would be a subset
of features already implemented for emulated nvdimm. We will use
new virtio-pmem-pci device and don't require advance ACPI configurations.
Can libvirt upstream community implement libvirt support for virtio pmem
to complete the entire stack.
It looks like pmem would fit as just another type of memory device
in libvirt's world. ie <memory model='virtio-pmem'>..</memory>:
https://libvirt.org/formatdomain.html#elementsMemory
In terms of impl it is mostly just a case of finding everywhere in
the code that references nvdimm and adding equivalent for pmem.
Regards,
Daniel
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