Re: [PATCH v1 4/4] NEWS.rst: document the pSeries NVDIMM auto-alignment revival
On Mon, 2020-09-14 at 23:42 -0300, Daniel Henrique Barboza wrote:
+ * Re-introduce NVDIMM auto-alignment for pSeries Guests
+
+ This feature was removed in libvirt v6.7.0 due to its shortcomings, namely
+ the lack of consistency between domain XML and actual NVDIMM size the guest
+ is using, but it came at a too high of a cost - we broke existing guests
+ that were running in libvirt v.6.6.0 and now had to adjust the size by
+ hand. The auto-alignment was re-introduced back, allowing existing guests
+ to keep running as usual. But now, instead of auto-aligning in a transparent
+ manner, it is also changing the domain XML. This brings a good balance
+ between consistency of domain XML and guest information, and also relieves
+ the user of knowing the alignment internals of pSeries NVDIMMs.
I feel like this is needlessly verbose. How about something like
* Re-introduce NVDIMM auto-alignment for pSeries Guests
The auto-alignment logic was removed in v6.7.0 in favor of
requiring the size provided by the user to be already aligned;
however, this had the unintended consequence of breaking some
existing guests. v6.8.0 restores the previous behavior, and as an
improvement upon it also reflects the auto-aligned value in the
domain XML.
instead?
--
Andrea Bolognani / Red Hat / Virtualization