Messages in this thread | | | Date | Sat, 15 Aug 2015 10:59:54 +0200 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH 1/7] x86, mm: ZONE_DEVICE for "device memory" |
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On Fri, Aug 14, 2015 at 02:52:15PM -0700, Dan Williams wrote: > The idea is that this memory is not meant to be available to the page > allocator and should not count as new memory capacity. We're only > hotplugging it to get struct page coverage.
This might need a bigger audit of the max_pfn usages. I remember architectures using it as a decisions for using IOMMUs or similar.
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