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SubjectRe: [HMM v14 05/16] mm/ZONE_DEVICE/unaddressable: add support for un-addressable device memory
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On 12/08/2016 08:39 AM, Jérôme Glisse wrote:
> Architecture that wish to support un-addressable device memory should make
> sure to never populate the kernel linar mapping for the physical range.

Does the platform somehow provide a range of physical addresses for this
unaddressable area? How do we know no memory will be hot-added in a
range we're using for unaddressable device memory, for instance?

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