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xen-devel
[Xen-devel] Merging xen/dom0/backend/blktap2 ..
On Mar 10, 2011, at 1:39 PM, xen-devel-request@xxxxxxxxxxxxxxxxxxx wrote:
>
> Message: 6
> Date: Thu, 10 Mar 2011 13:24:35 -0500
> From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> Subject: Re: [Xen-devel] Merging xen/dom0/backend/blktap2 ..
> To: Daniel Stodden <daniel.stodden@xxxxxxxxxx>
> Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, Jeremy Fitzhardinge
> <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx"
> <xen-devel@xxxxxxxxxxxxxxxxxxx>
> Message-ID: <20110310182435.GB7729@xxxxxxxxxxxx>
> Content-Type: text/plain; charset=us-ascii
>
> On Thu, Mar 10, 2011 at 02:39:47AM -0800, Daniel Stodden wrote:
>> On Thu, 2011-03-10 at 03:31 -0500, Ian Campbell wrote:
>>> On Thu, 2011-03-10 at 03:33 +0000, Daniel Stodden wrote:
>>>> is an overall pita and I've had the pleasure several times now.
>>>
>>> Merging it into what? xen/stable-2.6.32.x or some newer upstream version
>>> based tree?
>>
>> Newer upstream. Otherwise I wouldn't bother. It's certainly not a common
>> operation, I was just suprised how much garbage is involved.
>
> There is another party that is interested in doing this too, so it might
> be a good idea to compare ideas. Let me ping them to see where they are.
>
> But putting aside the blktap2 driver - what about that ugly #ifdef CONFIG_XEN
> piece of code that went in the generic code. Is that gone?
>
> I would think that the first path would be to post patches that introduce
> the required infrastructure. For that thought you might want to wait when
> the merge window opens and Linus starts pulling Stefano's and my tree. At
> that point
> a lot of the infrastructure backends should be in. Or if you like, you can
> take a merge of my #linux-next and Stefano's #linux-next and use that as a
> base.
>
> I've also up-ported blkback to 2.6.38 - look in devel/xen-blkback-v1 to
> see what I needed to do use the M2P/P2M override mechanism.
>
>
Konrad may be referring to me. I'm working on merging blktap2 into his
stable/next-2.6.38 tree. I have Dom0 loopback working and have started on the
foreign pages case. I have a PV linux guest coming up reading it's partition
table and filesystem, then crashing. I've done this by putting the VM_FORIEGN
bit back in. I plan to replace that with something more suitable to PVOPs once
it is up and working.
---
Tom Goetz
tcgoetz@xxxxxxxxx
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