On 06/11/2011 01:37 PM, Christoffer Dall wrote:
> > Okay, this is about a zillion times simpler than x86. Congratulations. Well, I need to handle the I/O aborts, but it's quite simple. What makes it much more complicated on x86?
- lack of nested paging on earlier processors - 97 different paging modes - lots of extra bits bringing in wierd functionality - lots of optimizations
> > What are your thoughts about mmu notifier support? For what purpose? There is no swapping on ARM, so only case that jumps to my mind is for KSM. And I'm not quite there yet :)
Really? I imaging swapping will be needed for server workloads. mmu notifiers are also useful for transparent hugepages and page migrations. I imagine these will all follow if ARM servers take off.
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