"Dr. David Alan Gilbert (git)" <dgilb...@redhat.com> wrote: > From: "Dr. David Alan Gilbert" <dgilb...@redhat.com> > > RAMBlocks that are not a multiple of host pages in length > cause problems for postcopy (I've seen an ACPI table on aarch64 > be 5k in length - i.e. 5x target-page), so round RAMBlock sizes > up to a host-page. > > This potentially breaks migration compatibility due to changes > in RAMBlock sizes; however: > 1) x86 and s390 I think always have host=target page size > 2) When I've tried on Power the block sizes already seem aligned. > 3) I don't think there's anything else that maintains per-version > machine-types for compatibility. > > Signed-off-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
Reviewed-by: Juan Quintela <quint...@redhat.com> We had this problem on the past when we moved the machines to be Megabyte rounded size, some machines where not. But in this particular case, I will clame that having a size that is _not_ of the size of the host pages is just asking for trouble.
