[PATCH] intel-iommu:make identity_map default for crash dump

[Simon Horman]

On Fri, Oct 21, 2011 at 08:31:54PM +0800, Dave Young wrote:
> kdump kernel sometimes will get DMAR faults which
> is caused by random in-flight dma from 1st kernel
> 
> Here make the identity_mapping as default for this case

This seems reasonable to me. Although I am curious to know
what the side effects of using IDENTMAP_ALL might be.