From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Li, ZhenHua" <zhen-hual-VXdhtT5mjnY@public.gmane.org>
Subject: Re: [PATCH v9 0/10] iommu/vt-d: Fix intel vt-d faults in kdump kernel
Date: Fri, 03 Apr 2015 16:31:00 +0800
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To: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: bhe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, tom.vaden-VXdhtT5mjnY@public.gmane.org, rwright-VXdhtT5mjnY@public.gmane.org, linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, lisa.mitchell-VXdhtT5mjnY@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, "Li,
	ZhenHua" <zhen-hual-VXdhtT5mjnY@public.gmane.org>, doug.hatch-VXdhtT5mjnY@public.gmane.org, ishii.hironobu-+CUm20s59erQFUHtdCDX3A@public.gmane.org, bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, billsumnerlinux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, li.zhang6-VXdhtT5mjnY@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
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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) { }