On 14/06/18 10:17, Julien Grall wrote:
> Hi Juergen,
> 
> Sorry for the formatting.
> 
> On Thu, 14 Jun 2018, 07:40 Juergen Gross, <jgr...@suse.com
> <mailto:jgr...@suse.com>> wrote:
> 
>     On 13/06/18 18:25, Andrew Cooper wrote:
>     > On 13/06/18 16:27, Juergen Gross wrote:
> 
>     Looking more into the privcmd driver I'm rather sure now I can solve
>     this via mmap() plus an ioctl(). So the kernel would allocate the
>     bounce buffers and map them into user space. This will require changes
>     only in libxencall without having to modify its external interface.
> 
> 
> It looks like David Vrabel sent in 2016 a patch implementing that
> solution [1]. It seems it has not been merged. Do you have any insight
> why it was not merged?

No. It had all needed Acks and there were no open questions.

Thanks for the reference, I think I can just reuse the patch after some
rebasing.


Juergen

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