> Follow up on earlier PAT patch series here:
>
http://lkml.org/lkml/2008/1/10/312
>
> This patch series adds Page Attribute Table (PAT) support on x86.
> There have been few changes based on comments for earlier patches and
> also issues that was seen while the earlier patchset was in mm. The
> main changes include:
>
> * Unlike earlier patchset, there are no changes to identity mapping of
> reserved regions.
> * Unlike earlier patches, there are no chanegs to early ioremap.
> * We look at MTRR setting and PAT request and track the resultant type
> to avoid aliasing.
> * UC_MINUS in PAT to provide backward compatibility to /dem/mem mmap users.
>
> In general, we have tried to make patches more simpler and cleaner.
> Hope is to cause less disruption along the way. The changes/cleaups
> that went into x86/mm (specifically pageattr.c) has helped us along
> the way.
>
> The patchset is against x86 testing from couple of days back.