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173733b7a8
The virtio-pmem is a virtio variant of NVDIMM and just like
NVDIMM virtio-pmem also allows accessing host pages bypassing
guest page cache. The difference is that if a regular file is
used to back guest's NVDIMM (model='nvdimm') the persistence of
guest writes might not be guaranteed while with virtio-pmem it
is.
To express this new model at domain XML level, I've chosen the
following:
<memory model='virtio-pmem' access='shared'>
<source>
<path>/tmp/virtio_pmem</path>
</source>
<target>
<size unit='KiB'>524288</size>
</target>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</memory>
Another difference between NVDIMM and virtio-pmem is that while
the former supports NUMA node locality the latter doesn't. And
also, the latter goes onto PCI bus and not into a DIMM module.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
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| .. | ||
| basictypes.rng | ||
| capability.rng | ||
| cpu.rng | ||
| cputypes.rng | ||
| domain.rng | ||
| domainbackup.rng | ||
| domaincaps.rng | ||
| domaincheckpoint.rng | ||
| domaincommon.rng | ||
| domainsnapshot.rng | ||
| interface.rng | ||
| meson.build | ||
| network.rng | ||
| networkcommon.rng | ||
| networkport.rng | ||
| nodedev.rng | ||
| nwfilter_params.rng | ||
| nwfilter.rng | ||
| nwfilterbinding.rng | ||
| secret.rng | ||
| storagecommon.rng | ||
| storagepool.rng | ||
| storagepoolcaps.rng | ||
| storagevol.rng | ||