Re: [Xen-devel] Grant access to more than one dom

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2014-04-17 at 12:38 -0300, Simon Martin wrote:
> Hello Ian,
> 
> > Dom0 should create two grant refs, one for each of the other domains.
> 
> Now comes the next question. The dom0 app is running in userspace, so
> I am using the /dev/xen/gntalloc device to allocate the pages. Looking
> at the IOCTLs defined for this I don't see a function that will take
> an existing map index and share it again.
> 
> I've had a quick look at Linux/drivers/xen/gntalloc.c and it doesn't
> look too complicated to implement this, however I don't want to tread
> on anybody's toes,

I shouldn't think any one is working on this, Daniel De Graaf (cc) is
the original author.

>  also any chance that this could make it's way back
> into kernel source?

I'm not a kernel maintainer, but I don't see why not.

Ian.


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