[Patch v3] Add persistent memory support

[Simon Horman]

On Tue, Aug 25, 2015 at 03:37:19PM +0800, Dave Young wrote:

[snip]

> Hmm, after looking into old discussion, I found that the options is there for
> the known issue for calgary iommu. I really doubt there's someone is using it
> but who knows.
> 
> calgary code uses saved_max_pfn which is only calculaed when there's memmap=exactmap
> cmdline params. So before removing the limitation we still need carry the old
> interface.
> 
> Hence, I will not object Bao's changes in his patch any more.

Thanks, on the strength of that comment I have applied this patch.