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Re: [Xen-devel] question about ept_set_entry


  • To: Jan Beulich <JBeulich@xxxxxxxx>, Chunyu Zhang <zhangcy@xxxxxxxxxxxxxx>
  • From: "Xu, Quan" <quan.xu@xxxxxxxxx>
  • Date: Fri, 29 Apr 2016 09:44:10 +0000
  • Accept-language: en-US
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Fri, 29 Apr 2016 09:44:18 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: AdGh94PKsWx2ysyMQNenLYjGfUq9sf//fIiA//92pAA=
  • Thread-topic: [Xen-devel] question about ept_set_entry

On April 29, 2016 5:24 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
> >>> On 29.04.16 at 11:14, <zhangcy@xxxxxxxxxxxxxx> wrote:
> > hi all
> >
> > in
> > - p2m-ept.c
> >   - ept_set_entry
> >
> > i see code about iommu,
> > those code  for what?

Maybe Chunyu's question is -- why  EPT update is  along with IOMMU page table 
update.
I guess :(.

Quan

> 
> For keeping the IOMMU translation tables in sync with the CPU ones?
> But perhaps I'm simply not understanding what you try to get at...
> 

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