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[Xen-devel] [PATCH RFC 0/2] Support for spare physical address space on ARM

This series refactors the x86 "pdx" stuff (phys address space
compression) into common code and makes use of it on ARM.

I'm publishing this early since I'm about to mostly disappear until 19
August (I'm in a couple of days next week and that's it) and I hope this
will help unblock Roy and Fu Wei's work on UEFI and grub/multiboot a

The refactoring patch should be mostly ok but the ARM one is rather
incomplete, although it works for me on a 64-bit fast model and real h/w
(with both contiguous and sparse memory maps). Note that it is not
expected to work at all on 32-bit yet.

The code is also available from 
        git://xenbits.xen.org/people/ianc/xen.git pdx-v1

(the branch also includes some incidental bits of my 48-bit physical
address series whic I was using for debug)


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