Messages in this thread | | | Date | Thu, 13 Aug 2020 09:54:20 +0200 | From | Roger Pau Monné <> | Subject | Re: [PATCH v4 2/2] xen: add helpers to allocate unpopulated memory |
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On Thu, Aug 13, 2020 at 08:33:37AM +0100, Christoph Hellwig wrote: > On Tue, Aug 11, 2020 at 11:44:47AM +0200, Roger Pau Monne wrote: > > If enabled (because ZONE_DEVICE is supported) the usage of the new > > functionality untangles Xen balloon and RAM hotplug from the usage of > > unpopulated physical memory ranges to map foreign pages, which is the > > correct thing to do in order to avoid mappings of foreign pages depend > > on memory hotplug. > > So please just select ZONE_DEVICE if this is so much better rather > than maintaining two variants.
We still need to other variant for Arm at least, so both need to be maintained anyway, even if we force ZONE_DEVICE on x86.
Thanks, Roger.
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