Re: [Xen-ia64-devel] [PATCH][RFC] allow conflicted rid allocation for >64 domain

[Alex Williamson <alex.williamson@xxxxxx>]

On Mon, 2007-05-14 at 16:55 +0900, Isaku Yamahata wrote:
> It seems that we're approaching 64 domain limit.
> Here's the experimental patch which removes it.
> 
> I don't think that just reducing rid bits given to guest OS is 
> enough because presumably we need domains more than 128, 256 or
> 512 ... eventually.
> So my approach is to allow rid regions to conflict.
> I haven't test it with >64 domains because my environment
> doesn't have enough memory to boot so many domains.
> But I tested it with dom_rid_bits=23 xen boot option.

   The white space cleanup patch looked good, so I applied it.  Allowing
conflicting RIDs and flushing appropriately seems like where we need to
go.  It's not unreasonable that someone would want to create lots of
domains on a large ia64 box.  I don't currently have a setup to test
this many domains either.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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