Re: [Embedded-pv-devel] Driver domain under Xen

[Andrii Tseglytskyi <andrii.tseglytskyi@xxxxxxxxxxxxxxx>]

Hi Stefano.

On Fri, Jan 23, 2015 at 4:48 PM, Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> wrote:
> I think it would be interesting.
>
> I would also like to see what changes are actually required. Maybe some
> of them could be upstreamed?
>

Thank you for your interest. I hope we will upstream some of changes.
To make driver domain running we need to have it memory 1 to 1 mapped.
And we did some changes to have a possibility to map *any* domain 1 to
1 if needed. This requires hypervisor + toolstack changes. This is the
best candidate for upstream as soon as it will be rewritten properly.
Oleksandr Tyschenko is now working on this.

Regards,
Andrii

> On Fri, 23 Jan 2015, Lars Kurth wrote:
>> Andrii,
>> I think it would, but I will let Ian, Julien & Stefano comment
>> Can I ask you to to have a look at 
>> http://lists.xenproject.org/archives/html/embedded-pv-devel/2015-01/msg00002.html
>>  â I think we
>> need to get traffic up at embedded-pv-devel@ and these kind of questions 
>> will fit perfectly there.
>> Regards
>> Lars
>>
>> From: Andrii Tseglytskyi <andrii.tseglytskyi@xxxxxxxxxxxxxxx>
>> Date: Friday, 23 January 2015 14:19
>> To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>, Lars Kurth 
>> <lars.kurth@xxxxxxxxxx>, Julien Grall <julien.grall@xxxxxxxxxx>,
>> "stefano.stabellini@xxxxxxxxxx" <stefano.stabellini@xxxxxxxxxx>
>> Cc: Artem Mygaiev <artem.mygaiev@xxxxxxxxxxxxxxx>, Andrii Anisov 
>> <andrii.anisov@xxxxxxxxxxxxxxx>
>> Subject: Driver domain under Xen
>>
>> Hi,
>> Xen related development in GlobalLogic is going with good progress, and 
>> latest what we've done on our platform is driver domain.
>> Right now on our platform dom0 doesn't access any hardware (except SATA and 
>> block device). Driver domain manages all hardware and
>> run all backend drivers.
>> This required several changes in hypervisor, toolstack, kernels, 
>> filesystems, device trees etc. I would like to write an article
>> abut our experience of driver domain + backends bringup.
>>
>> Will this be interesting?
>>
>> Regards,
>>
>> --
>>
>> Andrii Tseglytskyi | Lead engineer
>> GlobalLogic
>> www.globallogic.com
>>
>>



-- 

Andrii Tseglytskyi | Lead engineer
GlobalLogic
www.globallogic.com

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