>On Tue, 2007-07-17 at 06:31 -0700, Dor Laor wrote:
>> >Hi Rusty,
>> > I was curious if there are any implementations of your virtio
>> >substrate for KVM yet? And if not, I can offer help to get this
done
>> as
>> >I have an immediate need for a ring-buffer like PV channel.
>> >
>> >Regards,
>> >-Greg
>>
>> Actually I was planning of doing it. I'm maintaining our not-merged
PV
>> network drivers branch
>> [started by Ingo Molnar].
>> Since they already contain a ring + network logic I though of
dropping
>> the front end
>> part and hooking with virtio.
>> I also want to add/use virtio layer for the host side - KVM, Xen and
>> lguest all have Linux host
>> backend it makes logic to use a generic host drivers for
>> networking/block device too.
>> Actually this is my KVM forum presentation.
>
>OK, I've been working on GSO for virtio net. I'll post once I have it
>tested.
>
>> You're welcome to rip my ring code ;)
>>
>> btw: Rusty - what do you think of virtio for the host?
>
>You mean backend? For networking it makes a great deal of sense. For
>block it makes far less sense (COW, weird formats, etc).
I meant networking, but there are more components we can add to the
host:
- Block device can be directed into blkTap thus making the
result both flexible and zero-copy.
- backend for virtual bus that drivers virqs (or even event
channels) into the guest
- There's probably room for more
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