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xen-devel
Re: [Xen-devel] Re: More virtio users
Rusty Russell <rusty@xxxxxxxxxxxxxxx> writes:
> On Sun, 2007-06-10 at 10:33 +0300, Avi Kivity wrote:
>> It is worthwhile, when designing virtio, to keep in mind as many
>> possible users as possible. In addition to block and net, I see at
>> least the following:
[...]
> Framebuffer is an interesting one. Virtio doesn't assume shared memory,
> so naively the fb you would just send outbufs describing changed memory.
> This would work, but describing rectangles is better. A helper might be
> the right approach here
Wouldn't that be slow? Xen's PV framebuffer tracks dirty areas with
page granularity.
> Lguest doesn't have a framebuffer, so maybe this is a good thing for me
> to hack on, but I promised myself I'd finish NAPI for the net device,
> and tag for block device first.
That would be nice. It usually takes more than one implementation to
get an abstraction right.
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