Re: [kvm-devel] mmu notifiers

[Avi K. <av...@qu...>]

Robin Holt wrote:
>
>> The patch does enable some nifty things; one example you may be familiar 
>> with is using page migration to move a guest from one numa node to another.
>>     
>
> xpmem allows one MPI rank to "export" his address space, a different
> MPI rank to "import" that address space, and they share the same pages.
> This allows sharing of things like stack and heap space.  XPMEM also
> provides a mechanism to share that PFN information across partition
> boundaries so the pages become available on a different host.  This,
> of course, is dependent upon hardware that supports direct access to
> the memory by the processor.
>
>   

So this is yet another instance of hardware that has a tlb that needs to 
be kept in sync with the page tables, yes?

Excellent, the more users the patch has, the easier it will be to 
justify it.

-- 
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