Messages in this thread | | | Subject | Re: [HMM v13 07/18] mm/ZONE_DEVICE/x86: add support for un-addressable device memory | From | Balbir Singh <> | Date | Mon, 21 Nov 2016 13:08:56 +1100 |
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On 19/11/16 05:18, Jérôme Glisse wrote: > It does not need much, just skip populating kernel linear mapping > for range of un-addressable device memory (it is pick so that there > is no physical memory resource overlapping it). All the logic is in > share mm code. > > Only support x86-64 as this feature doesn't make much sense with > constrained virtual address space of 32bits architecture. >
Is there a reason this would not work on powerpc64 for example? Could you document the limitations -- testing/APIs/missing features?
Balbir Singh.
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