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Re: [libvirt] [PATCH] add flag to enforce hugepage backing of guest RAM



On Tue, Feb 04, 2014 at 12:22:00PM -0500, Marcelo Tosatti wrote:
> 
> You're OK with StrictHugePageSize=N element ?

I'm not entirely sure what that would do ? Is that for when people want
to have a specific size of hugepages ? If so, then I guess we might
actually need some kind of granularity here.

eg if the user has a 1200 MB guest, and they want to use 1 GB huge
pages, then there's a choice between 2 * 1GB huge pages, or 1 x 1GB
and n * 4M huge pages, or an error requiring that their guest RAM is
a multiple of requested huge page size.

So perhaps we do need some "policy" attribute on the <hugepages/>
element to indicate desired behaviour here.

Daniel
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