Re: [PATCH v9 0/10] iommu/vt-d: Fix intel vt-d faults in kdump kernel

["Li, ZhenHua" <zhen-hual-VXdhtT5mjnY@public.gmane.org>]

On 04/03/2015 04:28 PM, Dave Young wrote:
> On 03/19/15 at 01:36pm, Li, Zhen-Hua wrote:
>> This patchset is an update of Bill Sumner's patchset, implements a fix for:
>> If a kernel boots with intel_iommu=on on a system that supports intel vt-d,
>> when a panic happens, the kdump kernel will boot with these faults:
> Zhenhua,
>
> I will review the patchset recently, sorry for jumping in late.
>
> Thanks
> Dave
>
Hi Dave,
Thanks for your review. And please also take a look at the plan I sent 
in another mail:

Change use of
      if (is_kdump_kernel()) { }

To:
     if (iommu_enabled_in_last_kernel) { }