Re: [PATCH 0/7] AlacrityVM guest drivers Reply-To:

From: Gregory Haskins
Date: Thu Aug 06 2009 - 09:03:49 EST


>>> On 8/6/2009 at 8:54 AM, in message <4A7AD29E.50800@xxxxxxxxxx>, Avi Kivity
<avi@xxxxxxxxxx> wrote:
> On 08/06/2009 03:08 PM, Gregory Haskins wrote:
>>> Merging the guest first means relying on
>>> kernel interface from an out of tree driver, which well might change
>>> before it goes in.
>>>
>>
>> ABI compatibility is already addressed/handled, so even if that is true its
> not a problem.
>>
>>
>
> Really the correct way to address the ABI is to publish a spec and write
> both host and guest drivers to that. Unfortunately we didn't do this
> with virtio.
>
> It becomes more important when you have multiple implementations (e.g.
> Windows drivers).
>
>>>> This series implements the guest-side drivers for accelerated IO
>>>> when running on top of the AlacrityVM hypervisor, the details of
>>>> which you can find here:
>>>>
>>>> http://developer.novell.com/wiki/index.php/AlacrityVM
>>>>
>>> Since AlacrityVM is kvm based, Cc kvm@xxxxxxxxxxxxxxxx
>>>
>>
>> I *can* do that, but there is nothing in these drivers that is KVM specific
> (its all pure PCI and VBUS). I've already made the general announcement
> about the project/ml cross posted to KVM for anyone that might be interested,
> but I figure I will spare the general KVM list the details unless something
> specifically pertains to, or affects, KVM. For instance, when I get to
> pushing the hypervisor side, I still need to work on getting that
> 'xinterface' patch to you guys. I would certainly be CC'ing kvm@vger when
> that happens since it modifies the KVM code.
>>
>> So instead, I would just encourage anyone interested (such as yourself) to
> join the alacrity list so I don't bother the KVM community unless absolutely
> necessary.
>>
>
> It's true that vbus is a separate project (in fact even virtio is
> completely separate from kvm). Still I think it would be of interest to
> many kvm@ readers.

Well, my goal was to not annoy KVM readers. ;) So if you feel as though there is benefit to having all of KVM CC'd and I won't be annoying everyone, I see no problem in cross posting.

Would you like to see all conversations, or just ones related to code (and, of course, KVM relevant items)?

Regards,
-Greg



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