Re: [Xen-devel] [PATCH v4 17/21] libxl: disallow memory relocation when vNUMA is enabled

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2015-01-23 at 11:13 +0000, Wei Liu wrote:
> Disallow memory relocation when vNUMA is enabled, because relocated
> memory ends up off node. Further more, even if we dynamically expand
> node coverage in hvmloader, low memory and high memory may reside
> in different physical nodes, blindly relocating low memory to high
> memory gives us a sub-optimal configuration.

What are the downsides of doing this? Less flexible PCI passthrough/MMIO
hole sizing I think? Anything else?

Does some user doc somewhere need this adding?

(and now I think of it, the PoD vs. vnuma one too).

Ian.


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