Messages in this thread | | | Date | Thu, 4 Jun 2020 08:06:43 -0700 | From | Christoph Hellwig <> | Subject | Re: [PATCH] iommu/mediatek: Use totalram_pages to setup enable_4GB |
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On Thu, Jun 04, 2020 at 01:32:40PM +0200, David Hildenbrand wrote: > Just a thought: If memory hotplug is applicable as well, you might > either want to always assume data->enable_4GB, or handle memory hotplug > events from the memory notifier, when new memory gets onlined (not sure > how tricky that is).
We probably want a highest_pfn_possible() or similar API instead of having drivers poking into random VM internals.
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