[Xen-devel] Re: HYBRID: gnttab_map() to map shared frames..

To:	Mukesh Rathor <mukesh.rathor@xxxxxxxxxx>, "Xen-devel@xxxxxxxxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Subject:	[Xen-devel] Re: HYBRID: gnttab_map() to map shared frames..
From:	Keir Fraser <keir.xen@xxxxxxxxx>
Date:	Fri, 14 Oct 2011 08:50:33 +0100
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If you are running without autotranslate paging mode then the p2m will be
1:1 and there is no problem. If you are running autotranslate then yes you
probably need the HVM style of mapping.

 -- Keir

On 14/10/2011 02:18, "Mukesh Rathor" <mukesh.rathor@xxxxxxxxxx> wrote:

> Hi,
> 
> I am trying to figure how to make gnttab_map() work for Hybrid with EPT.
> The only way I am coming up is the HVM way, where I would have to get
> mmio_addr via pci_resource_start() which means registering xen-platform-pci
> driver. I know there will be implications later with migration, but thats
> later.
> 
> I can't think of any other way since the grant frames are coming from
> xen heap and not in p2m table, other than some sort of
> xen-heap-p2m-table or something ugly.
> 
> Am I on right track, or any other ideas?
> 
> thanks,
> Mukesh
> 



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[Xen-devel] Re: HYBRID: gnttab_map() to map shared frames..