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Date: Wed, 13 May 2015 09:47:07 +0800
From: "Li, ZhenHua" <zhen-hual@hp.com>
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To: Dave Young <dyoung@redhat.com>
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Subject: Re: [PATCH v11 05/10] iommu/vt-d: Add functions to load and save
 old re
References: <1431337974-545-1-git-send-email-zhen-hual@hp.com> <1431337974-545-6-git-send-email-zhen-hual@hp.com> <20150512083745.GE4561@localhost.localdomain>
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On 05/12/2015 04:37 PM, Dave Young wrote:
> Seems the subject was truncated? Maybe "re" means root entry? Then please fix it
>
> On 05/11/15 at 05:52pm, Li, Zhen-Hua wrote:
>> Add functions to load root entry table from old kernel, and to save updated
>> root entry table.
>> Add two member in struct intel_iommu, to store the RTA in old kernel, and
>> the mapped virt address of it.
>
> Please explain a bit what is "RTA" in patch log, it is unclear to most of people
> who do not know iommu details.
>
>>

If people want to understand this patchset, I assume they have read the 
vt-d specs. RTA is defined clearly in this spec.