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Re: [Xen-devel] [PATCH for-4.5 v3 3/3] xen: arm: Enable physical address space compression (PDX) on arm

Hi Ian,

On 17/09/14 14:21, Ian Campbell wrote:
This allows us to support sparse physical address maps which we previously
could not because the frametable would end up taking up an enormous fraction
of RAM.

On a fast model which has RAM at 0x80000000-0x100000000 and
0x880000000-0x900000000 this reduces the size of the frametable from
478M to 84M.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Reviewed-by: Julien Grall <julien.grall@xxxxxxxxxx>


Julien Grall

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