Messages in this thread | | | Date | Mon, 10 Jan 2005 16:00:50 -0800 | From | Deepak Saxena <> | Subject | Re: clean way to support >32bit addr on 32bit CPU |
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On Jan 10 2005, at 16:01, Slade Maurer was caught saying: > Also, it would be nice to have PTEs to represent the upper 4GB such that > it can be mmapped to user space. PAE handled this in and it would be > great to have it in ARM MMU36 as well.
Not doable. I believe PAE allows for normal 4K pages to be used when mapping > 32-bits. XSC3 and ARMv6 only allow for > 32 bit addresses when using 16MB pages (supersections), so we need to instead use the hugetlb approach.
~Deepak
-- Deepak Saxena - dsaxena@plexity.net - http://www.plexity.net
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